diff --git a/test/bitcoin_functional/functional/README.md b/test/bitcoin_functional/functional/README.md
index 6929ab5991238..d40052ac9394e 100644
--- a/test/bitcoin_functional/functional/README.md
+++ b/test/bitcoin_functional/functional/README.md
@@ -60,6 +60,11 @@ don't have test cases for.
 - When calling RPCs with lots of arguments, consider using named keyword
   arguments instead of positional arguments to make the intent of the call
   clear to readers.
+- Many of the core test framework classes such as `CBlock` and `CTransaction`
+  don't allow new attributes to be added to their objects at runtime like
+  typical Python objects allow. This helps prevent unpredictable side effects
+  from typographical errors or usage of the objects outside of their intended
+  purpose.
 
 #### RPC and P2P definitions
 
@@ -72,7 +77,7 @@ P2P messages. These can be found in the following source files:
 
 #### Using the P2P interface
 
-- `mininode.py` contains all the definitions for objects that pass
+- `messages.py` contains all the definitions for objects that pass
 over the network (`CBlock`, `CTransaction`, etc, along with the network-level
 wrappers for them, `msg_block`, `msg_tx`, etc).
 
diff --git a/test/bitcoin_functional/functional/combine_logs.py b/test/bitcoin_functional/functional/combine_logs.py
index d7811606a8618..3230d5cb6b6a9 100755
--- a/test/bitcoin_functional/functional/combine_logs.py
+++ b/test/bitcoin_functional/functional/combine_logs.py
@@ -23,13 +23,8 @@ def main():
     parser = argparse.ArgumentParser(usage='%(prog)s [options] <test temporary directory>', description=__doc__)
     parser.add_argument('-c', '--color', dest='color', action='store_true', help='outputs the combined log with events colored by source (requires posix terminal colors. Use less -r for viewing)')
     parser.add_argument('--html', dest='html', action='store_true', help='outputs the combined log as html. Requires jinja2. pip install jinja2')
-    parser.add_argument('--chain', dest='chain', help='selected chain in the tests (default: regtest2)', default='regtest2')
     args, unknown_args = parser.parse_known_args()
 
-    if args.color and os.name != 'posix':
-        print("Color output requires posix terminal colors.")
-        sys.exit(1)
-
     if args.html and args.color:
         print("Only one out of --color or --html should be specified")
         sys.exit(1)
diff --git a/test/bitcoin_functional/functional/data/rpc_getblockstats.json b/test/bitcoin_functional/functional/data/rpc_getblockstats.json
index a98468620e047..b8cabe1e5e589 100644
--- a/test/bitcoin_functional/functional/data/rpc_getblockstats.json
+++ b/test/bitcoin_functional/functional/data/rpc_getblockstats.json
@@ -1,117 +1,117 @@
 {
   "blocks": [
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-      "avgfee": 3740,
+      "avgfee": 3760,
       "avgfeerate": 20,
       "avgtxsize": 187,
-      "blockhash": "5179a9d862368cdd509b8a6f4f18a4bc12589bd7610c0a39c12c3e1a985e1518",
+      "blockhash": "4e21a43675d7a41cb6b944e068c5bcd0a677baf658d9ebe021ae2d2f99397ccc",
+      "height": 102,
       "feerate_percentiles": [
         20,
         20,
@@ -156,15 +157,14 @@
         20,
         20
       ],
-      "height": 102,
       "ins": 1,
-      "maxfee": 3740,
+      "maxfee": 3760,
       "maxfeerate": 20,
       "maxtxsize": 187,
-      "medianfee": 3740,
-      "mediantime": 1548774752,
+      "medianfee": 3760,
+      "mediantime": 1525107242,
       "mediantxsize": 187,
-      "minfee": 3740,
+      "minfee": 3760,
       "minfeerate": 20,
       "mintxsize": 187,
       "outs": 4,
@@ -172,48 +172,48 @@
       "swtotal_size": 0,
       "swtotal_weight": 0,
       "swtxs": 0,
-      "time": 1548774753,
-      "total_out": 4999996260,
+      "time": 1525107243,
+      "total_out": 4999996240,
       "total_size": 187,
       "total_weight": 748,
-      "totalfee": 3740,
+      "totalfee": 3760,
       "txs": 2,
       "utxo_increase": 3,
       "utxo_size_inc": 234
     },
     {
-      "avgfee": 18953,
+      "avgfee": 18960,
       "avgfeerate": 109,
-      "avgtxsize": 227,
-      "blockhash": "023d532c1219ec366bce7e8dae07143d002edffd8ec081b3a768459ae9c4fab3",
+      "avgtxsize": 228,
+      "blockhash": "22d9b8b9c2a37c81515f3fc84f7241f6c07dbcea85ef16b00bcc33ae400a030f",
       "feerate_percentiles": [
         20,
         20,
         20,
-        301,
-        301
+        300,
+        300
       ],
       "height": 103,
       "ins": 3,
       "maxfee": 49800,
-      "maxfeerate": 301,
-      "maxtxsize": 247,
-      "medianfee": 3740,
-      "mediantime": 1548774753,
-      "mediantxsize": 247,
+      "maxfeerate": 300,
+      "maxtxsize": 248,
+      "medianfee": 3760,
+      "mediantime": 1525107243,
+      "mediantxsize": 248,
       "minfee": 3320,
       "minfeerate": 20,
-      "mintxsize": 187,
+      "mintxsize": 188,
       "outs": 8,
       "subsidy": 5000000000,
-      "swtotal_size": 494,
-      "swtotal_weight": 1322,
+      "swtotal_size": 496,
+      "swtotal_weight": 1324,
       "swtxs": 2,
-      "time": 1548774753,
-      "total_out": 9999939400,
-      "total_size": 681,
-      "total_weight": 2070,
-      "totalfee": 56860,
+      "time": 1525107243,
+      "total_out": 9999939360,
+      "total_size": 684,
+      "total_weight": 2076,
+      "totalfee": 56880,
       "txs": 4,
       "utxo_increase": 5,
       "utxo_size_inc": 380
diff --git a/test/bitcoin_functional/functional/data/rpc_psbt.json b/test/bitcoin_functional/functional/data/rpc_psbt.json
index dd40a096deed6..57f2608ee99f3 100644
--- a/test/bitcoin_functional/functional/data/rpc_psbt.json
+++ b/test/bitcoin_functional/functional/data/rpc_psbt.json
@@ -17,7 +17,8 @@
         "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",
         "cHNidP8BAHMCAAAAATAa6YblFqHsisW0vGVz0y+DtGXiOtdhZ9aLOOcwtNvbAAAAAAD/////AnR7AQAAAAAAF6kUA6oXrogrXQ1Usl1jEE5P/s57nqKHYEOZOwAAAAAXqRS5IbG6b3IuS/qDtlV6MTmYakLsg4cAAAAAAAEBHwDKmjsAAAAAFgAU0tlLZK4IWH7vyO6xh8YB6Tn5A3wCAwABAAAAAAEAFgAUYunpgv/zTdgjlhAxawkM0qO3R8sAAQAiACCHa62DLx0WgBXtQSMqnqZaGBXZ7xPA74dZ9ktbKyeKZQEBJVEhA7fOI6AcW0vwCmQlN836uzFbZoMyhnR471EwnSvVf4qHUa4A",
         "cHNidP8BAHMCAAAAATAa6YblFqHsisW0vGVz0y+DtGXiOtdhZ9aLOOcwtNvbAAAAAAD/////AnR7AQAAAAAAF6kUA6oXrogrXQ1Usl1jEE5P/s57nqKHYEOZOwAAAAAXqRS5IbG6b3IuS/qDtlV6MTmYakLsg4cAAAAAAAEBHwDKmjsAAAAAFgAU0tlLZK4IWH7vyO6xh8YB6Tn5A3wAAgAAFgAUYunpgv/zTdgjlhAxawkM0qO3R8sAAQAiACCHa62DLx0WgBXtQSMqnqZaGBXZ7xPA74dZ9ktbKyeKZQEBJVEhA7fOI6AcW0vwCmQlN836uzFbZoMyhnR471EwnSvVf4qHUa4A",
-        "cHNidP8BAHMCAAAAATAa6YblFqHsisW0vGVz0y+DtGXiOtdhZ9aLOOcwtNvbAAAAAAD/////AnR7AQAAAAAAF6kUA6oXrogrXQ1Usl1jEE5P/s57nqKHYEOZOwAAAAAXqRS5IbG6b3IuS/qDtlV6MTmYakLsg4cAAAAAAAEBHwDKmjsAAAAAFgAU0tlLZK4IWH7vyO6xh8YB6Tn5A3wAAQAWABRi6emC//NN2COWEDFrCQzSo7dHywABACIAIIdrrYMvHRaAFe1BIyqeploYFdnvE8Dvh1n2S1srJ4plIQEAJVEhA7fOI6AcW0vwCmQlN836uzFbZoMyhnR471EwnSvVf4qHUa4A"
+        "cHNidP8BAHMCAAAAATAa6YblFqHsisW0vGVz0y+DtGXiOtdhZ9aLOOcwtNvbAAAAAAD/////AnR7AQAAAAAAF6kUA6oXrogrXQ1Usl1jEE5P/s57nqKHYEOZOwAAAAAXqRS5IbG6b3IuS/qDtlV6MTmYakLsg4cAAAAAAAEBHwDKmjsAAAAAFgAU0tlLZK4IWH7vyO6xh8YB6Tn5A3wAAQAWABRi6emC//NN2COWEDFrCQzSo7dHywABACIAIIdrrYMvHRaAFe1BIyqeploYFdnvE8Dvh1n2S1srJ4plIQEAJVEhA7fOI6AcW0vwCmQlN836uzFbZoMyhnR471EwnSvVf4qHUa4A",
+        "cHNidP8BAHMCAAAAAbiWoY6pOQepFsEGhUPXaulX9rvye2NH+NrdlAHg+WgpAQAAAAD/////AkBLTAAAAAAAF6kUqWwXCcLM5BN2zoNqMNT5qMlIi7+HQEtMAAAAAAAXqRSVF/in2XNxAlN1OSxkyp0z+Wtg2YcAAAAAAAEBIBNssgAAAAAAF6kUamsvautR8hRlMRY6OKNTx03DK96HAQcXFgAUo8u1LWpHprjt/uENAwBpGZD0UH0BCGsCRzBEAiAONfH3DYiw67ZbylrsxCF/XXpVwyWBRgofyRbPslzvwgIgIKCsWw5sHSIPh1icNvcVLZLHWj6NA7Dk+4Os2pOnMbQBIQPGStfYHPtyhpV7zIWtn0Q4GXv5gK1zy/tnJ+cBXu4iiwABABYAFMwmJQEz+HDpBEEabxJ5PogPsqZRAAEAFgAUyCrGc3h3FYCmiIspbv2pSTKZ5jU"
     ],
     "valid" : [
         "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",
diff --git a/test/bitcoin_functional/functional/example_test.py b/test/bitcoin_functional/functional/example_test.py
index 937a525401771..be3544ee74cfc 100755
--- a/test/bitcoin_functional/functional/example_test.py
+++ b/test/bitcoin_functional/functional/example_test.py
@@ -85,6 +85,8 @@ def set_test_params(self):
 
         # self.log.info("I've finished set_test_params")  # Oops! Can't run self.log before run_test()
 
+    # Use skip_test_if_missing_module() to skip the test if your test requires certain modules to be present.
+    # This test uses generate which requires wallet to be compiled
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
 
@@ -162,13 +164,13 @@ def run_test(self):
         self.tip = int(self.nodes[0].getbestblockhash(), 16)
         self.block_time = self.nodes[0].getblock(self.nodes[0].getbestblockhash())['time'] + 1
 
-        height = 1
+        height = self.nodes[0].getblockcount()
 
         for i in range(10):
             # Use the mininode and blocktools functionality to manually build a block
             # Calling the generate() rpc is easier, but this allows us to exactly
             # control the blocks and transactions.
-            block = create_block(self.tip, create_coinbase(height), self.block_time)
+            block = create_block(self.tip, create_coinbase(height+1), self.block_time)
             block.solve()
             block_message = msg_block(block)
             # Send message is used to send a P2P message to the node over our P2PInterface
diff --git a/test/bitcoin_functional/functional/feature_block.py b/test/bitcoin_functional/functional/feature_block.py
index 6e36ea56016bf..e386915ada016 100755
--- a/test/bitcoin_functional/functional/feature_block.py
+++ b/test/bitcoin_functional/functional/feature_block.py
@@ -75,9 +75,6 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.extra_args = [[]]
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         node = self.nodes[0]  # convenience reference to the node
 
@@ -827,7 +824,7 @@ def run_test(self):
         tx.vin.append(CTxIn(COutPoint(b64a.vtx[1].sha256, 0)))
         b64a = self.update_block("64a", [tx])
         assert_equal(len(b64a.serialize()), MAX_BLOCK_BASE_SIZE + 8)
-        self.sync_blocks([b64a], success=False, reject_reason='non-canonical ReadCompactSize(): iostream error')
+        self.sync_blocks([b64a], success=False, reject_reason='non-canonical ReadCompactSize()')
 
         # bitcoind doesn't disconnect us for sending a bloated block, but if we subsequently
         # resend the header message, it won't send us the getdata message again. Just
diff --git a/test/bitcoin_functional/functional/feature_blocksdir.py b/test/bitcoin_functional/functional/feature_blocksdir.py
index e49747ea0d41a..c170f510c88df 100755
--- a/test/bitcoin_functional/functional/feature_blocksdir.py
+++ b/test/bitcoin_functional/functional/feature_blocksdir.py
@@ -16,13 +16,10 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         self.stop_node(0)
         shutil.rmtree(self.nodes[0].datadir)
-        initialize_datadir(self.options.tmpdir, 0, self.chain)
+        initialize_datadir(self.options.tmpdir, 0)
         self.log.info("Starting with nonexistent blocksdir ...")
         blocksdir_path = os.path.join(self.options.tmpdir, 'blocksdir')
         self.nodes[0].assert_start_raises_init_error(["-blocksdir=" + blocksdir_path], 'Error: Specified blocks directory "{}" does not exist.'.format(blocksdir_path))
@@ -30,9 +27,9 @@ def run_test(self):
         self.log.info("Starting with existing blocksdir ...")
         self.start_node(0, ["-blocksdir=" + blocksdir_path])
         self.log.info("mining blocks..")
-        self.nodes[0].generate(10)
-        assert os.path.isfile(os.path.join(blocksdir_path, "regtest2", "blocks", "blk00000.dat"))
-        assert os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest2", "blocks", "index"))
+        self.nodes[0].generatetoaddress(10, self.nodes[0].get_deterministic_priv_key().address)
+        assert os.path.isfile(os.path.join(blocksdir_path, "regtest", "blocks", "blk00000.dat"))
+        assert os.path.isdir(os.path.join(self.nodes[0].datadir, "regtest", "blocks", "index"))
 
 
 if __name__ == '__main__':
diff --git a/test/bitcoin_functional/functional/feature_cltv.py b/test/bitcoin_functional/functional/feature_cltv.py
index f84b08a19938e..302a5ec1cb14b 100755
--- a/test/bitcoin_functional/functional/feature_cltv.py
+++ b/test/bitcoin_functional/functional/feature_cltv.py
@@ -25,7 +25,6 @@
 
 # Reject codes that we might receive in this test
 REJECT_INVALID = 16
-REJECT_OBSOLETE = 17
 REJECT_NONSTANDARD = 64
 
 def cltv_invalidate(tx):
diff --git a/test/bitcoin_functional/functional/feature_config_args.py b/test/bitcoin_functional/functional/feature_config_args.py
index f4f472881e16e..88a9aadc7b781 100755
--- a/test/bitcoin_functional/functional/feature_config_args.py
+++ b/test/bitcoin_functional/functional/feature_config_args.py
@@ -14,9 +14,6 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def test_config_file_parser(self):
         # Assume node is stopped
 
@@ -32,6 +29,10 @@ def test_config_file_parser(self):
             conf.write('nono\n')
         self.nodes[0].assert_start_raises_init_error(expected_msg='Error reading configuration file: parse error on line 1: nono, if you intended to specify a negated option, use nono=1 instead')
 
+        with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
+            conf.write('server=1\nrpcuser=someuser\nrpcpassword=some#pass')
+        self.nodes[0].assert_start_raises_init_error(expected_msg='Error reading configuration file: parse error on line 3, using # in rpcpassword can be ambiguous and should be avoided')
+
         with open(inc_conf_file_path, 'w', encoding='utf-8') as conf:
             conf.write('')  # clear
 
@@ -68,13 +69,18 @@ def run_test(self):
         # Temporarily disabled, because this test would access the user's home dir (~/.bitcoin)
         #self.start_node(0, ['-conf='+conf_file, '-wallet=w1'])
         #self.stop_node(0)
+        #assert os.path.exists(os.path.join(new_data_dir, 'regtest', 'blocks'))
+        #if self.is_wallet_compiled():
         #assert os.path.exists(os.path.join(new_data_dir, 'regtest', 'wallets', 'w1'))
 
         # Ensure command line argument overrides datadir in conf
         os.mkdir(new_data_dir_2)
         self.nodes[0].datadir = new_data_dir_2
         self.start_node(0, ['-datadir='+new_data_dir_2, '-conf='+conf_file, '-wallet=w2'])
-        assert os.path.exists(os.path.join(new_data_dir_2, 'regtest2', 'wallets', 'w2'))
+        assert os.path.exists(os.path.join(new_data_dir_2, 'regtest', 'blocks'))
+        if self.is_wallet_compiled():
+            assert os.path.exists(os.path.join(new_data_dir_2, 'regtest', 'wallets', 'w2'))
+
 
 if __name__ == '__main__':
     ConfArgsTest().main()
diff --git a/test/bitcoin_functional/functional/feature_dbcrash.py b/test/bitcoin_functional/functional/feature_dbcrash.py
index ae1eacf2d7bdd..70d67aa53aca4 100755
--- a/test/bitcoin_functional/functional/feature_dbcrash.py
+++ b/test/bitcoin_functional/functional/feature_dbcrash.py
@@ -69,6 +69,7 @@ def skip_test_if_missing_module(self):
     def setup_network(self):
         self.add_nodes(self.num_nodes, extra_args=self.extra_args)
         self.start_nodes()
+        self.import_deterministic_coinbase_privkeys()
         # Leave them unconnected, we'll use submitblock directly in this test
 
     def restart_node(self, node_index, expected_tip):
diff --git a/test/bitcoin_functional/functional/feature_dersig.py b/test/bitcoin_functional/functional/feature_dersig.py
index 16272877e7a9e..9cbc1b39bd7c0 100755
--- a/test/bitcoin_functional/functional/feature_dersig.py
+++ b/test/bitcoin_functional/functional/feature_dersig.py
@@ -22,7 +22,6 @@
 
 # Reject codes that we might receive in this test
 REJECT_INVALID = 16
-REJECT_OBSOLETE = 17
 REJECT_NONSTANDARD = 64
 
 # A canonical signature consists of:
diff --git a/test/bitcoin_functional/functional/feature_fee_estimation.py b/test/bitcoin_functional/functional/feature_fee_estimation.py
index aaab4279b5f04..b68e46adbc75b 100755
--- a/test/bitcoin_functional/functional/feature_fee_estimation.py
+++ b/test/bitcoin_functional/functional/feature_fee_estimation.py
@@ -144,6 +144,9 @@ def setup_network(self):
         # (68k weight is room enough for 120 or so transactions)
         # Node2 is a stingy miner, that
         # produces too small blocks (room for only 55 or so transactions)
+        self.start_nodes()
+        self.import_deterministic_coinbase_privkeys()
+        self.stop_nodes()
 
     def transact_and_mine(self, numblocks, mining_node):
         min_fee = Decimal("0.00001")
@@ -171,11 +174,6 @@ def transact_and_mine(self, numblocks, mining_node):
                     newmem.append(utx)
             self.memutxo = newmem
 
-    def import_deterministic_coinbase_privkeys(self):
-        self.start_nodes()
-        super().import_deterministic_coinbase_privkeys()
-        self.stop_nodes()
-
     def run_test(self):
         self.log.info("This test is time consuming, please be patient")
         self.log.info("Splitting inputs so we can generate tx's")
diff --git a/test/bitcoin_functional/functional/feature_filelock.py b/test/bitcoin_functional/functional/feature_filelock.py
new file mode 100755
index 0000000000000..9fb0d35a68f38
--- /dev/null
+++ b/test/bitcoin_functional/functional/feature_filelock.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+# Copyright (c) 2018 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Check that it's not possible to start a second bitcoind instance using the same datadir or wallet."""
+import os
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.test_node import ErrorMatch
+
+class FilelockTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.setup_clean_chain = True
+        self.num_nodes = 2
+
+    def setup_network(self):
+        self.add_nodes(self.num_nodes, extra_args=None)
+        self.nodes[0].start([])
+        self.nodes[0].wait_for_rpc_connection()
+
+    def run_test(self):
+        datadir = os.path.join(self.nodes[0].datadir, 'regtest')
+        self.log.info("Using datadir {}".format(datadir))
+
+        self.log.info("Check that we can't start a second bitcoind instance using the same datadir")
+        expected_msg = "Error: Cannot obtain a lock on data directory {}. Bitcoin Core is probably already running.".format(datadir)
+        self.nodes[1].assert_start_raises_init_error(extra_args=['-datadir={}'.format(self.nodes[0].datadir), '-noserver'], expected_msg=expected_msg)
+
+        if self.is_wallet_compiled():
+            wallet_dir = os.path.join(datadir, 'wallets')
+            self.log.info("Check that we can't start a second bitcoind instance using the same wallet")
+            expected_msg = "Error: Error initializing wallet database environment"
+            self.nodes[1].assert_start_raises_init_error(extra_args=['-walletdir={}'.format(wallet_dir), '-noserver'], expected_msg=expected_msg, match=ErrorMatch.PARTIAL_REGEX)
+
+if __name__ == '__main__':
+    FilelockTest().main()
diff --git a/test/bitcoin_functional/functional/feature_logging.py b/test/bitcoin_functional/functional/feature_logging.py
index 4e7c521d4b756..8bb7e02695f57 100755
--- a/test/bitcoin_functional/functional/feature_logging.py
+++ b/test/bitcoin_functional/functional/feature_logging.py
@@ -15,11 +15,8 @@ def set_test_params(self):
         self.num_nodes = 1
         self.setup_clean_chain = True
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def relative_log_path(self, name):
-        return os.path.join(self.nodes[0].datadir, "regtest2", name)
+        return os.path.join(self.nodes[0].datadir, "regtest", name)
 
     def run_test(self):
         # test default log file name
diff --git a/test/bitcoin_functional/functional/feature_notifications.py b/test/bitcoin_functional/functional/feature_notifications.py
index 25a7329a0d1f5..d8083b2840d91 100755
--- a/test/bitcoin_functional/functional/feature_notifications.py
+++ b/test/bitcoin_functional/functional/feature_notifications.py
@@ -5,85 +5,84 @@
 """Test the -alertnotify, -blocknotify and -walletnotify options."""
 import os
 
+from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, wait_until, connect_nodes_bi
 
+
 class NotificationsTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
         self.setup_clean_chain = True
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def setup_network(self):
-        self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
-        self.block_filename = os.path.join(self.options.tmpdir, "blocks.txt")
-        self.tx_filename = os.path.join(self.options.tmpdir, "transactions.txt")
+        self.alertnotify_dir = os.path.join(self.options.tmpdir, "alertnotify")
+        self.blocknotify_dir = os.path.join(self.options.tmpdir, "blocknotify")
+        self.walletnotify_dir = os.path.join(self.options.tmpdir, "walletnotify")
+        os.mkdir(self.alertnotify_dir)
+        os.mkdir(self.blocknotify_dir)
+        os.mkdir(self.walletnotify_dir)
 
         # -alertnotify and -blocknotify on node0, walletnotify on node1
-        self.extra_args = [["-blockversion=2",
-                            "-alertnotify=echo %%s >> %s" % self.alert_filename,
-                            "-blocknotify=echo %%s >> %s" % self.block_filename],
+        self.extra_args = [[
+                            "-alertnotify=echo > {}".format(os.path.join(self.alertnotify_dir, '%s')),
+                            "-blocknotify=echo > {}".format(os.path.join(self.blocknotify_dir, '%s'))],
                            ["-blockversion=211",
                             "-rescan",
-                            "-walletnotify=echo %%s >> %s" % self.tx_filename]]
+                            "-walletnotify=echo > {}".format(os.path.join(self.walletnotify_dir, '%s'))]]
         super().setup_network()
 
     def run_test(self):
         self.log.info("test -blocknotify")
         block_count = 10
-        blocks = self.nodes[1].generate(block_count)
+        blocks = self.nodes[1].generatetoaddress(block_count, self.nodes[1].getnewaddress() if self.is_wallet_compiled() else ADDRESS_BCRT1_UNSPENDABLE)
 
-        # wait at most 10 seconds for expected file size before reading the content
-        wait_until(lambda: os.path.isfile(self.block_filename) and os.stat(self.block_filename).st_size >= (block_count * 65), timeout=10)
+        # wait at most 10 seconds for expected number of files before reading the content
+        wait_until(lambda: len(os.listdir(self.blocknotify_dir)) == block_count, timeout=10)
 
-        # file content should equal the generated blocks hashes
-        with open(self.block_filename, 'r', encoding="utf-8") as f:
-            assert_equal(sorted(blocks), sorted(l.strip() for l in f.read().splitlines()))
+        # directory content should equal the generated blocks hashes
+        assert_equal(sorted(blocks), sorted(os.listdir(self.blocknotify_dir)))
 
-        self.log.info("test -walletnotify")
-        # wait at most 10 seconds for expected file size before reading the content
-        wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)
+        if self.is_wallet_compiled():
+            self.log.info("test -walletnotify")
+            # wait at most 10 seconds for expected number of files before reading the content
+            wait_until(lambda: len(os.listdir(self.walletnotify_dir)) == block_count, timeout=10)
 
-        # file content should equal the generated transaction hashes
-        txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
-        with open(self.tx_filename, 'r', encoding="ascii") as f:
-            assert_equal(sorted(txids_rpc), sorted(l.strip() for l in f.read().splitlines()))
-        os.remove(self.tx_filename)
+            # directory content should equal the generated transaction hashes
+            txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
+            assert_equal(sorted(txids_rpc), sorted(os.listdir(self.walletnotify_dir)))
+            self.stop_node(1)
+            for tx_file in os.listdir(self.walletnotify_dir):
+                os.remove(os.path.join(self.walletnotify_dir, tx_file))
 
-        self.log.info("test -walletnotify after rescan")
-        # restart node to rescan to force wallet notifications
-        self.restart_node(1)
-        connect_nodes_bi(self.nodes, 0, 1)
+            self.log.info("test -walletnotify after rescan")
+            # restart node to rescan to force wallet notifications
+            self.start_node(1)
+            connect_nodes_bi(self.nodes, 0, 1)
 
-        wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)
+            wait_until(lambda: len(os.listdir(self.walletnotify_dir)) == block_count, timeout=10)
 
-        # file content should equal the generated transaction hashes
-        txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
-        with open(self.tx_filename, 'r', encoding="ascii") as f:
-            assert_equal(sorted(txids_rpc), sorted(l.strip() for l in f.read().splitlines()))
+            # directory content should equal the generated transaction hashes
+            txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
+            assert_equal(sorted(txids_rpc), sorted(os.listdir(self.walletnotify_dir)))
 
         # Mine another 41 up-version blocks. -alertnotify should trigger on the 51st.
         self.log.info("test -alertnotify")
-        self.nodes[1].generate(41)
+        self.nodes[1].generatetoaddress(41, ADDRESS_BCRT1_UNSPENDABLE)
         self.sync_all()
 
         # Give bitcoind 10 seconds to write the alert notification
-        wait_until(lambda: os.path.isfile(self.alert_filename) and os.path.getsize(self.alert_filename), timeout=10)
+        wait_until(lambda: len(os.listdir(self.alertnotify_dir)), timeout=10)
 
-        with open(self.alert_filename, 'r', encoding='utf8') as f:
-            alert_text = f.read()
+        for notify_file in os.listdir(self.alertnotify_dir):
+            os.remove(os.path.join(self.alertnotify_dir, notify_file))
 
         # Mine more up-version blocks, should not get more alerts:
-        self.nodes[1].generate(2)
+        self.nodes[1].generatetoaddress(2, ADDRESS_BCRT1_UNSPENDABLE)
         self.sync_all()
 
-        with open(self.alert_filename, 'r', encoding='utf8') as f:
-            alert_text2 = f.read()
-
         self.log.info("-alertnotify should not continue notifying for more unknown version blocks")
-        assert_equal(alert_text, alert_text2)
+        assert_equal(len(os.listdir(self.alertnotify_dir)), 0)
 
 if __name__ == '__main__':
     NotificationsTest().main()
diff --git a/test/bitcoin_functional/functional/feature_nulldummy.py b/test/bitcoin_functional/functional/feature_nulldummy.py
index a79cc3d34bf48..eb76089d9c49d 100755
--- a/test/bitcoin_functional/functional/feature_nulldummy.py
+++ b/test/bitcoin_functional/functional/feature_nulldummy.py
@@ -12,6 +12,7 @@
 [Consensus] Check that the new NULLDUMMY rules are not enforced on the 431st block.
 [Policy/Consensus] Check that the new NULLDUMMY rules are enforced on the 432nd block.
 """
+import time
 
 from test_framework.blocktools import create_coinbase, create_block, create_transaction, add_witness_commitment
 from test_framework.messages import CTransaction
@@ -19,8 +20,6 @@
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_raises_rpc_error, bytes_to_hex_str
 
-import time
-
 NULLDUMMY_ERROR = "non-mandatory-script-verify-flag (Dummy CHECKMULTISIG argument must be zero) (code 64)"
 
 def trueDummy(tx):
@@ -42,7 +41,7 @@ def set_test_params(self):
         self.setup_clean_chain = True
         # This script tests NULLDUMMY activation, which is part of the 'segwit' deployment, so we go through
         # normal segwit activation here (and don't use the default always-on behaviour).
-        self.extra_args = [['-whitelist=127.0.0.1', '-vbparams=segwit:0:999999999999', '-addresstype=legacy', "-deprecatedrpc=addwitnessaddress"]]
+        self.extra_args = [['-whitelist=127.0.0.1', '-vbparams=segwit:0:999999999999', '-addresstype=legacy']]
 
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
@@ -50,14 +49,14 @@ def skip_test_if_missing_module(self):
     def run_test(self):
         self.address = self.nodes[0].getnewaddress()
         self.ms_address = self.nodes[0].addmultisigaddress(1, [self.address])['address']
-        self.wit_address = self.nodes[0].addwitnessaddress(self.address)
+        self.wit_address = self.nodes[0].getnewaddress(address_type='p2sh-segwit')
         self.wit_ms_address = self.nodes[0].addmultisigaddress(1, [self.address], '', 'p2sh-segwit')['address']
 
-        self.coinbase_blocks = self.nodes[0].generate(2) # Block 2
+        self.coinbase_blocks = self.nodes[0].generate(2)  # Block 2
         coinbase_txid = []
         for i in self.coinbase_blocks:
             coinbase_txid.append(self.nodes[0].getblock(i)['tx'][0])
-        self.nodes[0].generate(427) # Block 429
+        self.nodes[0].generate(427)  # Block 429
         self.lastblockhash = self.nodes[0].getbestblockhash()
         self.tip = int("0x" + self.lastblockhash, 0)
         self.lastblockheight = 429
@@ -82,7 +81,7 @@ def run_test(self):
 
         self.log.info("Test 4: Non-NULLDUMMY base multisig transaction is invalid after activation")
         test4tx = create_transaction(self.nodes[0], test2tx.hash, self.address, amount=46)
-        test6txs=[CTransaction(test4tx)]
+        test6txs = [CTransaction(test4tx)]
         trueDummy(test4tx)
         assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, bytes_to_hex_str(test4tx.serialize_with_witness()), True)
         self.block_submit(self.nodes[0], [test4tx])
@@ -99,8 +98,7 @@ def run_test(self):
             self.nodes[0].sendrawtransaction(bytes_to_hex_str(i.serialize_with_witness()), True)
         self.block_submit(self.nodes[0], test6txs, True, True)
 
-
-    def block_submit(self, node, txs, witness = False, accept = False):
+    def block_submit(self, node, txs, witness=False, accept=False):
         block = create_block(self.tip, create_coinbase(self.lastblockheight + 1), self.lastblocktime + 1)
         block.nVersion = 4
         for tx in txs:
diff --git a/test/bitcoin_functional/functional/feature_pruning.py b/test/bitcoin_functional/functional/feature_pruning.py
index 772151dc4ba1f..c820ca33e2769 100755
--- a/test/bitcoin_functional/functional/feature_pruning.py
+++ b/test/bitcoin_functional/functional/feature_pruning.py
@@ -63,6 +63,8 @@ def setup_network(self):
     def setup_nodes(self):
         self.add_nodes(self.num_nodes, self.extra_args)
         self.start_nodes()
+        for n in self.nodes:
+            n.importprivkey(privkey=n.get_deterministic_priv_key().key, label='coinbase', rescan=False)
 
     def create_big_chain(self):
         # Start by creating some coinbases we can spend later
diff --git a/test/bitcoin_functional/functional/feature_reindex.py b/test/bitcoin_functional/functional/feature_reindex.py
index 3727eeaeae9dd..940b403f9c183 100755
--- a/test/bitcoin_functional/functional/feature_reindex.py
+++ b/test/bitcoin_functional/functional/feature_reindex.py
@@ -18,11 +18,8 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def reindex(self, justchainstate=False):
-        self.nodes[0].generate(3)
+        self.nodes[0].generatetoaddress(3, self.nodes[0].get_deterministic_priv_key().address)
         blockcount = self.nodes[0].getblockcount()
         self.stop_nodes()
         extra_args = [["-reindex-chainstate" if justchainstate else "-reindex"]]
diff --git a/test/bitcoin_functional/functional/feature_segwit.py b/test/bitcoin_functional/functional/feature_segwit.py
index 2cbfc26e899f4..7098a03f1ec0e 100755
--- a/test/bitcoin_functional/functional/feature_segwit.py
+++ b/test/bitcoin_functional/functional/feature_segwit.py
@@ -5,11 +5,10 @@
 """Test the SegWit changeover logic."""
 
 from decimal import Decimal
+from io import BytesIO
 
 from test_framework.address import (
     key_to_p2pkh,
-    key_to_p2sh_p2wpkh,
-    key_to_p2wpkh,
     program_to_witness,
     script_to_p2sh,
     script_to_p2sh_p2wsh,
@@ -21,8 +20,6 @@
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_raises_rpc_error, bytes_to_hex_str, connect_nodes, hex_str_to_bytes, sync_blocks, try_rpc
 
-from io import BytesIO
-
 NODE_0 = 0
 NODE_2 = 2
 WIT_V0 = 0
@@ -51,20 +48,17 @@ def set_test_params(self):
                 "-rpcserialversion=0",
                 "-vbparams=segwit:0:999999999999",
                 "-addresstype=legacy",
-                "-deprecatedrpc=addwitnessaddress",
             ],
             [
                 "-blockversion=4",
                 "-rpcserialversion=1",
                 "-vbparams=segwit:0:999999999999",
                 "-addresstype=legacy",
-                "-deprecatedrpc=addwitnessaddress",
             ],
             [
                 "-blockversion=536870915",
                 "-vbparams=segwit:0:999999999999",
                 "-addresstype=legacy",
-                "-deprecatedrpc=addwitnessaddress",
             ],
         ]
 
@@ -91,9 +85,8 @@ def skip_mine(self, node, txid, sign, redeem_script=""):
     def fail_accept(self, node, error_msg, txid, sign, redeem_script=""):
         assert_raises_rpc_error(-26, error_msg, send_to_witness, use_p2wsh=1, node=node, utxo=getutxo(txid), pubkey=self.pubkey[0], encode_p2sh=False, amount=Decimal("49.998"), sign=sign, insert_redeem_script=redeem_script)
 
-
     def run_test(self):
-        self.nodes[0].generate(161) #block 161
+        self.nodes[0].generate(161)  # block 161
 
         self.log.info("Verify sigops are counted in GBT with pre-BIP141 rules before the fork")
         txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1)
@@ -103,28 +96,24 @@ def run_test(self):
         assert(tmpl['sigoplimit'] == 20000)
         assert(tmpl['transactions'][0]['hash'] == txid)
         assert(tmpl['transactions'][0]['sigops'] == 2)
-        tmpl = self.nodes[0].getblocktemplate({'rules':['segwit']})
+        tmpl = self.nodes[0].getblocktemplate({'rules': ['segwit']})
         assert(tmpl['sizelimit'] == 1000000)
         assert('weightlimit' not in tmpl)
         assert(tmpl['sigoplimit'] == 20000)
         assert(tmpl['transactions'][0]['hash'] == txid)
         assert(tmpl['transactions'][0]['sigops'] == 2)
-        self.nodes[0].generate(1) #block 162
+        self.nodes[0].generate(1)  # block 162
 
         balance_presetup = self.nodes[0].getbalance()
         self.pubkey = []
-        p2sh_ids = [] # p2sh_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE embedded in p2sh
-        wit_ids = [] # wit_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE via bare witness
+        p2sh_ids = []  # p2sh_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE embedded in p2sh
+        wit_ids = []  # wit_ids[NODE][VER] is an array of txids that spend to a witness version VER pkscript to an address for NODE via bare witness
         for i in range(3):
             newaddress = self.nodes[i].getnewaddress()
             self.pubkey.append(self.nodes[i].getaddressinfo(newaddress)["pubkey"])
             multiscript = CScript([OP_1, hex_str_to_bytes(self.pubkey[-1]), OP_1, OP_CHECKMULTISIG])
-            p2sh_addr = self.nodes[i].addwitnessaddress(newaddress)
-            bip173_addr = self.nodes[i].addwitnessaddress(newaddress, False)
             p2sh_ms_addr = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]], '', 'p2sh-segwit')['address']
             bip173_ms_addr = self.nodes[i].addmultisigaddress(1, [self.pubkey[-1]], '', 'bech32')['address']
-            assert_equal(p2sh_addr, key_to_p2sh_p2wpkh(self.pubkey[-1]))
-            assert_equal(bip173_addr, key_to_p2wpkh(self.pubkey[-1]))
             assert_equal(p2sh_ms_addr, script_to_p2sh_p2wsh(multiscript))
             assert_equal(bip173_ms_addr, script_to_p2wsh(multiscript))
             p2sh_ids.append([])
@@ -139,32 +128,32 @@ def run_test(self):
                     wit_ids[n][v].append(send_to_witness(v, self.nodes[0], find_spendable_utxo(self.nodes[0], 50), self.pubkey[n], False, Decimal("49.999")))
                     p2sh_ids[n][v].append(send_to_witness(v, self.nodes[0], find_spendable_utxo(self.nodes[0], 50), self.pubkey[n], True, Decimal("49.999")))
 
-        self.nodes[0].generate(1) #block 163
+        self.nodes[0].generate(1)  # block 163
         sync_blocks(self.nodes)
 
         # Make sure all nodes recognize the transactions as theirs
-        assert_equal(self.nodes[0].getbalance(), balance_presetup - 60*50 + 20*Decimal("49.999") + 50)
-        assert_equal(self.nodes[1].getbalance(), 20*Decimal("49.999"))
-        assert_equal(self.nodes[2].getbalance(), 20*Decimal("49.999"))
+        assert_equal(self.nodes[0].getbalance(), balance_presetup - 60 * 50 + 20 * Decimal("49.999") + 50)
+        assert_equal(self.nodes[1].getbalance(), 20 * Decimal("49.999"))
+        assert_equal(self.nodes[2].getbalance(), 20 * Decimal("49.999"))
 
-        self.nodes[0].generate(260) #block 423
+        self.nodes[0].generate(260)  # block 423
         sync_blocks(self.nodes)
 
         self.log.info("Verify witness txs are skipped for mining before the fork")
-        self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][0], True) #block 424
-        self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][0], True) #block 425
-        self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][0], True) #block 426
-        self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][0], True) #block 427
+        self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V0][0], True)  # block 424
+        self.skip_mine(self.nodes[2], wit_ids[NODE_2][WIT_V1][0], True)  # block 425
+        self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V0][0], True)  # block 426
+        self.skip_mine(self.nodes[2], p2sh_ids[NODE_2][WIT_V1][0], True)  # block 427
 
         self.log.info("Verify unsigned p2sh witness txs without a redeem script are invalid")
         self.fail_accept(self.nodes[2], "mandatory-script-verify-flag", p2sh_ids[NODE_2][WIT_V0][1], False)
         self.fail_accept(self.nodes[2], "mandatory-script-verify-flag", p2sh_ids[NODE_2][WIT_V1][1], False)
 
-        self.nodes[2].generate(4) # blocks 428-431
+        self.nodes[2].generate(4)  # blocks 428-431
 
         self.log.info("Verify previous witness txs skipped for mining can now be mined")
         assert_equal(len(self.nodes[2].getrawmempool()), 4)
-        block = self.nodes[2].generate(1) #block 432 (first block with new rules; 432 = 144 * 3)
+        block = self.nodes[2].generate(1)  # block 432 (first block with new rules; 432 = 144 * 3)
         sync_blocks(self.nodes)
         assert_equal(len(self.nodes[2].getrawmempool()), 0)
         segwit_tx_list = self.nodes[2].getblock(block[0])["tx"]
@@ -181,8 +170,8 @@ def run_test(self):
         self.fail_accept(self.nodes[0], "mandatory-script-verify-flag", p2sh_ids[NODE_0][WIT_V1][0], False, witness_script(True, self.pubkey[0]))
 
         self.log.info("Verify block and transaction serialization rpcs return differing serializations depending on rpc serialization flag")
-        assert(self.nodes[2].getblock(block[0], False) !=  self.nodes[0].getblock(block[0], False))
-        assert(self.nodes[1].getblock(block[0], False) ==  self.nodes[2].getblock(block[0], False))
+        assert(self.nodes[2].getblock(block[0], False) != self.nodes[0].getblock(block[0], False))
+        assert(self.nodes[1].getblock(block[0], False) == self.nodes[2].getblock(block[0], False))
         for i in range(len(segwit_tx_list)):
             tx = FromHex(CTransaction(), self.nodes[2].gettransaction(segwit_tx_list[i])["hex"])
             assert(self.nodes[2].getrawtransaction(segwit_tx_list[i]) != self.nodes[0].getrawtransaction(segwit_tx_list[i]))
@@ -198,21 +187,21 @@ def run_test(self):
         self.fail_accept(self.nodes[2], 'non-mandatory-script-verify-flag (Witness program was passed an empty witness) (code 64)', p2sh_ids[NODE_2][WIT_V1][2], sign=False, redeem_script=witness_script(True, self.pubkey[2]))
 
         self.log.info("Verify default node can now use witness txs")
-        self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], True) #block 432
-        self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], True) #block 433
-        self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], True) #block 434
-        self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], True) #block 435
+        self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V0][0], True)  # block 432
+        self.success_mine(self.nodes[0], wit_ids[NODE_0][WIT_V1][0], True)  # block 433
+        self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V0][0], True)  # block 434
+        self.success_mine(self.nodes[0], p2sh_ids[NODE_0][WIT_V1][0], True)  # block 435
 
         self.log.info("Verify sigops are counted in GBT with BIP141 rules after the fork")
         txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1)
-        tmpl = self.nodes[0].getblocktemplate({'rules':['segwit']})
+        tmpl = self.nodes[0].getblocktemplate({'rules': ['segwit']})
         assert(tmpl['sizelimit'] >= 3999577)  # actual maximum size is lower due to minimum mandatory non-witness data
         assert(tmpl['weightlimit'] == 4000000)
         assert(tmpl['sigoplimit'] == 80000)
         assert(tmpl['transactions'][0]['txid'] == txid)
         assert(tmpl['transactions'][0]['sigops'] == 8)
 
-        self.nodes[0].generate(1) # Mine a block to clear the gbt cache
+        self.nodes[0].generate(1)  # Mine a block to clear the gbt cache
 
         self.log.info("Non-segwit miners are able to use GBT response after activation.")
         # Create a 3-tx chain: tx1 (non-segwit input, paying to a segwit output) ->
@@ -222,7 +211,7 @@ def run_test(self):
         txid1 = send_to_witness(1, self.nodes[0], find_spendable_utxo(self.nodes[0], 50), self.pubkey[0], False, Decimal("49.996"))
         hex_tx = self.nodes[0].gettransaction(txid)['hex']
         tx = FromHex(CTransaction(), hex_tx)
-        assert(tx.wit.is_null()) # This should not be a segwit input
+        assert(tx.wit.is_null())  # This should not be a segwit input
         assert(txid1 in self.nodes[0].getrawmempool())
 
         # Now create tx2, which will spend from txid1.
@@ -247,13 +236,13 @@ def run_test(self):
         template = self.nodes[0].getblocktemplate()
 
         # Check that tx1 is the only transaction of the 3 in the template.
-        template_txids = [ t['txid'] for t in template['transactions'] ]
+        template_txids = [t['txid'] for t in template['transactions']]
         assert(txid2 not in template_txids and txid3 not in template_txids)
         assert(txid1 in template_txids)
 
         # Check that running with segwit support results in all 3 being included.
         template = self.nodes[0].getblocktemplate({"rules": ["segwit"]})
-        template_txids = [ t['txid'] for t in template['transactions'] ]
+        template_txids = [t['txid'] for t in template['transactions']]
         assert(txid1 in template_txids)
         assert(txid2 in template_txids)
         assert(txid3 in template_txids)
@@ -264,17 +253,17 @@ def run_test(self):
         # Mine a block to clear the gbt cache again.
         self.nodes[0].generate(1)
 
-        self.log.info("Verify behaviour of importaddress, addwitnessaddress and listunspent")
+        self.log.info("Verify behaviour of importaddress and listunspent")
 
         # Some public keys to be used later
         pubkeys = [
-            "0363D44AABD0F1699138239DF2F042C3282C0671CC7A76826A55C8203D90E39242", # cPiM8Ub4heR9NBYmgVzJQiUH1if44GSBGiqaeJySuL2BKxubvgwb
-            "02D3E626B3E616FC8662B489C123349FECBFC611E778E5BE739B257EAE4721E5BF", # cPpAdHaD6VoYbW78kveN2bsvb45Q7G5PhaPApVUGwvF8VQ9brD97
-            "04A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538A62F5BD8EC85C2477F39650BD391EA6250207065B2A81DA8B009FC891E898F0E", # 91zqCU5B9sdWxzMt1ca3VzbtVm2YM6Hi5Rxn4UDtxEaN9C9nzXV
-            "02A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538", # cPQFjcVRpAUBG8BA9hzr2yEzHwKoMgLkJZBBtK9vJnvGJgMjzTbd
-            "036722F784214129FEB9E8129D626324F3F6716555B603FFE8300BBCB882151228", # cQGtcm34xiLjB1v7bkRa4V3aAc9tS2UTuBZ1UnZGeSeNy627fN66
-            "0266A8396EE936BF6D99D17920DB21C6C7B1AB14C639D5CD72B300297E416FD2EC", # cTW5mR5M45vHxXkeChZdtSPozrFwFgmEvTNnanCW6wrqwaCZ1X7K
-            "0450A38BD7F0AC212FEBA77354A9B036A32E0F7C81FC4E0C5ADCA7C549C4505D2522458C2D9AE3CEFD684E039194B72C8A10F9CB9D4764AB26FCC2718D421D3B84", # 92h2XPssjBpsJN5CqSP7v9a7cf2kgDunBC6PDFwJHMACM1rrVBJ
+            "0363D44AABD0F1699138239DF2F042C3282C0671CC7A76826A55C8203D90E39242",  # cPiM8Ub4heR9NBYmgVzJQiUH1if44GSBGiqaeJySuL2BKxubvgwb
+            "02D3E626B3E616FC8662B489C123349FECBFC611E778E5BE739B257EAE4721E5BF",  # cPpAdHaD6VoYbW78kveN2bsvb45Q7G5PhaPApVUGwvF8VQ9brD97
+            "04A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538A62F5BD8EC85C2477F39650BD391EA6250207065B2A81DA8B009FC891E898F0E",  # 91zqCU5B9sdWxzMt1ca3VzbtVm2YM6Hi5Rxn4UDtxEaN9C9nzXV
+            "02A47F2CBCEFFA7B9BCDA184E7D5668D3DA6F9079AD41E422FA5FD7B2D458F2538",  # cPQFjcVRpAUBG8BA9hzr2yEzHwKoMgLkJZBBtK9vJnvGJgMjzTbd
+            "036722F784214129FEB9E8129D626324F3F6716555B603FFE8300BBCB882151228",  # cQGtcm34xiLjB1v7bkRa4V3aAc9tS2UTuBZ1UnZGeSeNy627fN66
+            "0266A8396EE936BF6D99D17920DB21C6C7B1AB14C639D5CD72B300297E416FD2EC",  # cTW5mR5M45vHxXkeChZdtSPozrFwFgmEvTNnanCW6wrqwaCZ1X7K
+            "0450A38BD7F0AC212FEBA77354A9B036A32E0F7C81FC4E0C5ADCA7C549C4505D2522458C2D9AE3CEFD684E039194B72C8A10F9CB9D4764AB26FCC2718D421D3B84",  # 92h2XPssjBpsJN5CqSP7v9a7cf2kgDunBC6PDFwJHMACM1rrVBJ
         ]
 
         # Import a compressed key and an uncompressed key, generate some multisig addresses
@@ -282,8 +271,8 @@ def run_test(self):
         uncompressed_spendable_address = ["mvozP4UwyGD2mGZU4D2eMvMLPB9WkMmMQu"]
         self.nodes[0].importprivkey("cNC8eQ5dg3mFAVePDX4ddmPYpPbw41r9bm2jd1nLJT77e6RrzTRR")
         compressed_spendable_address = ["mmWQubrDomqpgSYekvsU7HWEVjLFHAakLe"]
-        assert ((self.nodes[0].getaddressinfo(uncompressed_spendable_address[0])['iscompressed'] == False))
-        assert ((self.nodes[0].getaddressinfo(compressed_spendable_address[0])['iscompressed'] == True))
+        assert not self.nodes[0].getaddressinfo(uncompressed_spendable_address[0])['iscompressed']
+        assert self.nodes[0].getaddressinfo(compressed_spendable_address[0])['iscompressed']
 
         self.nodes[0].importpubkey(pubkeys[0])
         compressed_solvable_address = [key_to_p2pkh(pubkeys[0])]
@@ -305,7 +294,6 @@ def run_test(self):
         uncompressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], uncompressed_solvable_address[0]])['address'])
         compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_spendable_address[0], compressed_solvable_address[0]])['address'])
         compressed_solvable_address.append(self.nodes[0].addmultisigaddress(2, [compressed_solvable_address[0], compressed_solvable_address[1]])['address'])
-        unknown_address = ["mtKKyoHabkk6e4ppT7NaM7THqPUt7AzPrT", "2NDP3jLWAFT8NDAiUa9qiE6oBt2awmMq7Dx"]
 
         # Test multisig_without_privkey
         # We have 2 public keys without private keys, use addmultisigaddress to add to wallet.
@@ -386,7 +374,6 @@ def run_test(self):
         op1 = CScript([OP_1])
         op0 = CScript([OP_0])
         # 2N7MGY19ti4KDMSzRfPAssP6Pxyuxoi6jLe is the P2SH(P2PKH) version of mjoE3sSrb8ByYEvgnC3Aox86u1CHnfJA4V
-        unsolvable_address = ["mjoE3sSrb8ByYEvgnC3Aox86u1CHnfJA4V", "2N7MGY19ti4KDMSzRfPAssP6Pxyuxoi6jLe", script_to_p2sh(op1), script_to_p2sh(op0)]
         unsolvable_address_key = hex_str_to_bytes("02341AEC7587A51CDE5279E0630A531AEA2615A9F80B17E8D9376327BAEAA59E3D")
         unsolvablep2pkh = CScript([OP_DUP, OP_HASH160, hash160(unsolvable_address_key), OP_EQUALVERIFY, OP_CHECKSIG])
         unsolvablep2wshp2pkh = CScript([OP_0, sha256(unsolvablep2pkh)])
@@ -394,9 +381,9 @@ def run_test(self):
         p2wshop1 = CScript([OP_0, sha256(op1)])
         unsolvable_after_importaddress.append(unsolvablep2pkh)
         unsolvable_after_importaddress.append(unsolvablep2wshp2pkh)
-        unsolvable_after_importaddress.append(op1) # OP_1 will be imported as script
+        unsolvable_after_importaddress.append(op1)  # OP_1 will be imported as script
         unsolvable_after_importaddress.append(p2wshop1)
-        unseen_anytime.append(op0) # OP_0 will be imported as P2SH address with no script provided
+        unseen_anytime.append(op0)  # OP_0 will be imported as P2SH address with no script provided
         unsolvable_after_importaddress.append(p2shop0)
 
         spendable_txid = []
@@ -432,27 +419,14 @@ def run_test(self):
             # exceptions and continue.
             try_rpc(-4, "The wallet already contains the private key for this address or script", self.nodes[0].importaddress, i, "", False, True)
 
-        self.nodes[0].importaddress(script_to_p2sh(op0)) # import OP_0 as address only
-        self.nodes[0].importaddress(multisig_without_privkey_address) # Test multisig_without_privkey
+        self.nodes[0].importaddress(script_to_p2sh(op0))  # import OP_0 as address only
+        self.nodes[0].importaddress(multisig_without_privkey_address)  # Test multisig_without_privkey
 
         spendable_txid.append(self.mine_and_test_listunspent(spendable_anytime + spendable_after_importaddress, 2))
         solvable_txid.append(self.mine_and_test_listunspent(solvable_anytime + solvable_after_importaddress, 1))
         self.mine_and_test_listunspent(unsolvable_after_importaddress, 1)
         self.mine_and_test_listunspent(unseen_anytime, 0)
 
-        # addwitnessaddress should refuse to return a witness address if an uncompressed key is used
-        # note that no witness address should be returned by unsolvable addresses
-        for i in uncompressed_spendable_address + uncompressed_solvable_address + unknown_address + unsolvable_address:
-            assert_raises_rpc_error(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
-
-        # addwitnessaddress should return a witness addresses even if keys are not in the wallet
-        self.nodes[0].addwitnessaddress(multisig_without_privkey_address)
-
-        for i in compressed_spendable_address + compressed_solvable_address:
-            witaddress = self.nodes[0].addwitnessaddress(i)
-            # addwitnessaddress should return the same address if it is a known P2SH-witness address
-            assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress))
-
         spendable_txid.append(self.mine_and_test_listunspent(spendable_anytime + spendable_after_importaddress, 2))
         solvable_txid.append(self.mine_and_test_listunspent(solvable_anytime + solvable_after_importaddress, 1))
         self.mine_and_test_listunspent(unsolvable_after_importaddress, 1)
@@ -470,8 +444,6 @@ def run_test(self):
         self.nodes[0].importpubkey(pubkeys[6])
         uncompressed_solvable_address = [key_to_p2pkh(pubkeys[6])]
 
-        spendable_after_addwitnessaddress = []      # These outputs should be seen after importaddress
-        solvable_after_addwitnessaddress=[]         # These outputs should be seen after importaddress but not spendable
         unseen_anytime = []                         # These outputs should never be seen
         solvable_anytime = []                       # These outputs should be solvable after importpubkey
         unseen_anytime = []                         # These outputs should never be seen
@@ -488,8 +460,6 @@ def run_test(self):
             v = self.nodes[0].getaddressinfo(i)
             if (v['isscript']):
                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
-                # P2WSH and P2SH(P2WSH) multisig with compressed keys are spendable after addwitnessaddress
-                spendable_after_addwitnessaddress.extend([p2wsh, p2sh_p2wsh])
                 premature_witaddress.append(script_to_p2sh(p2wsh))
             else:
                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
@@ -510,9 +480,7 @@ def run_test(self):
         for i in compressed_solvable_address:
             v = self.nodes[0].getaddressinfo(i)
             if (v['isscript']):
-                # P2WSH multisig without private key are seen after addwitnessaddress
                 [bare, p2sh, p2wsh, p2sh_p2wsh] = self.p2sh_address_to_script(v)
-                solvable_after_addwitnessaddress.extend([p2wsh, p2sh_p2wsh])
                 premature_witaddress.append(script_to_p2sh(p2wsh))
             else:
                 [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh] = self.p2pkh_address_to_script(v)
@@ -521,29 +489,11 @@ def run_test(self):
 
         self.mine_and_test_listunspent(spendable_anytime, 2)
         self.mine_and_test_listunspent(solvable_anytime, 1)
-        self.mine_and_test_listunspent(spendable_after_addwitnessaddress + solvable_after_addwitnessaddress + unseen_anytime, 0)
-
-        # addwitnessaddress should refuse to return a witness address if an uncompressed key is used
-        # note that a multisig address returned by addmultisigaddress is not solvable until it is added with importaddress
-        # premature_witaddress are not accepted until the script is added with addwitnessaddress first
-        for i in uncompressed_spendable_address + uncompressed_solvable_address + premature_witaddress:
-            # This will raise an exception
-            assert_raises_rpc_error(-4, "Public key or redeemscript not known to wallet, or the key is uncompressed", self.nodes[0].addwitnessaddress, i)
-
-        # after importaddress it should pass addwitnessaddress
-        v = self.nodes[0].getaddressinfo(compressed_solvable_address[1])
-        self.nodes[0].importaddress(v['hex'],"",False,True)
-        for i in compressed_spendable_address + compressed_solvable_address + premature_witaddress:
-            witaddress = self.nodes[0].addwitnessaddress(i)
-            assert_equal(witaddress, self.nodes[0].addwitnessaddress(witaddress))
-
-        spendable_txid.append(self.mine_and_test_listunspent(spendable_after_addwitnessaddress + spendable_anytime, 2))
-        solvable_txid.append(self.mine_and_test_listunspent(solvable_after_addwitnessaddress + solvable_anytime, 1))
         self.mine_and_test_listunspent(unseen_anytime, 0)
 
         # Check that createrawtransaction/decoderawtransaction with non-v0 Bech32 works
-        v1_addr = program_to_witness(1, [3,5])
-        v1_tx = self.nodes[0].createrawtransaction([getutxo(spendable_txid[0])],{v1_addr: 1})
+        v1_addr = program_to_witness(1, [3, 5])
+        v1_tx = self.nodes[0].createrawtransaction([getutxo(spendable_txid[0])], {v1_addr: 1})
         v1_decoded = self.nodes[1].decoderawtransaction(v1_tx)
         assert_equal(v1_decoded['vout'][0]['scriptPubKey']['addresses'][0], v1_addr)
         assert_equal(v1_decoded['vout'][0]['scriptPubKey']['hex'], "51020305")
@@ -586,7 +536,7 @@ def run_test(self):
     def mine_and_test_listunspent(self, script_list, ismine):
         utxo = find_spendable_utxo(self.nodes[0], 50)
         tx = CTransaction()
-        tx.vin.append(CTxIn(COutPoint(int('0x'+utxo['txid'],0), utxo['vout'])))
+        tx.vin.append(CTxIn(COutPoint(int('0x' + utxo['txid'], 0), utxo['vout'])))
         for i in script_list:
             tx.vout.append(CTxOut(10000000, i))
         tx.rehash()
@@ -599,7 +549,7 @@ def mine_and_test_listunspent(self, script_list, ismine):
         for i in self.nodes[0].listunspent():
             if (i['txid'] == txid):
                 watchcount += 1
-                if (i['spendable'] == True):
+                if i['spendable']:
                     spendcount += 1
         if (ismine == 2):
             assert_equal(spendcount, len(script_list))
@@ -610,14 +560,14 @@ def mine_and_test_listunspent(self, script_list, ismine):
             assert_equal(watchcount, 0)
         return txid
 
-    def p2sh_address_to_script(self,v):
+    def p2sh_address_to_script(self, v):
         bare = CScript(hex_str_to_bytes(v['hex']))
         p2sh = CScript(hex_str_to_bytes(v['scriptPubKey']))
         p2wsh = CScript([OP_0, sha256(bare)])
         p2sh_p2wsh = CScript([OP_HASH160, hash160(p2wsh), OP_EQUAL])
         return([bare, p2sh, p2wsh, p2sh_p2wsh])
 
-    def p2pkh_address_to_script(self,v):
+    def p2pkh_address_to_script(self, v):
         pubkey = hex_str_to_bytes(v['pubkey'])
         p2wpkh = CScript([OP_0, hash160(pubkey)])
         p2sh_p2wpkh = CScript([OP_HASH160, hash160(p2wpkh), OP_EQUAL])
@@ -631,7 +581,7 @@ def p2pkh_address_to_script(self,v):
         p2sh_p2wsh_p2pkh = CScript([OP_HASH160, hash160(p2wsh_p2pkh), OP_EQUAL])
         return [p2wpkh, p2sh_p2wpkh, p2pk, p2pkh, p2sh_p2pk, p2sh_p2pkh, p2wsh_p2pk, p2wsh_p2pkh, p2sh_p2wsh_p2pk, p2sh_p2wsh_p2pkh]
 
-    def create_and_mine_tx_from_txids(self, txids, success = True):
+    def create_and_mine_tx_from_txids(self, txids, success=True):
         tx = CTransaction()
         for i in txids:
             txtmp = CTransaction()
@@ -639,7 +589,7 @@ def create_and_mine_tx_from_txids(self, txids, success = True):
             f = BytesIO(hex_str_to_bytes(txraw))
             txtmp.deserialize(f)
             for j in range(len(txtmp.vout)):
-                tx.vin.append(CTxIn(COutPoint(int('0x'+i,0), j)))
+                tx.vin.append(CTxIn(COutPoint(int('0x' + i, 0), j)))
         tx.vout.append(CTxOut(0, CScript()))
         tx.rehash()
         signresults = self.nodes[0].signrawtransactionwithwallet(bytes_to_hex_str(tx.serialize_without_witness()))['hex']
diff --git a/test/bitcoin_functional/functional/feature_uacomment.py b/test/bitcoin_functional/functional/feature_uacomment.py
index 691a39b82584e..fb4ad213596cd 100755
--- a/test/bitcoin_functional/functional/feature_uacomment.py
+++ b/test/bitcoin_functional/functional/feature_uacomment.py
@@ -31,7 +31,7 @@ def run_test(self):
         self.nodes[0].assert_start_raises_init_error(["-uacomment=" + 'a' * 256], expected, match=ErrorMatch.FULL_REGEX)
 
         self.log.info("test -uacomment unsafe characters")
-        for unsafe_char in ['/', ':', '(', ')']:
+        for unsafe_char in ['/', ':', '(', ')', '₿', '🏃']:
             expected = "Error: User Agent comment \(" + re.escape(unsafe_char) + "\) contains unsafe characters."
             self.nodes[0].assert_start_raises_init_error(["-uacomment=" + unsafe_char], expected, match=ErrorMatch.FULL_REGEX)
 
diff --git a/test/bitcoin_functional/functional/feature_versionbits_warning.py b/test/bitcoin_functional/functional/feature_versionbits_warning.py
index cf77720437e4c..88df61cabc72c 100755
--- a/test/bitcoin_functional/functional/feature_versionbits_warning.py
+++ b/test/bitcoin_functional/functional/feature_versionbits_warning.py
@@ -31,9 +31,6 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def setup_network(self):
         self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
         # Open and close to create zero-length file
@@ -68,13 +65,14 @@ def run_test(self):
         node = self.nodes[0]
         node.add_p2p_connection(P2PInterface())
 
+        node_deterministic_address = node.get_deterministic_priv_key().address
         # Mine one period worth of blocks
-        node.generate(VB_PERIOD)
+        node.generatetoaddress(VB_PERIOD, node_deterministic_address)
 
         self.log.info("Check that there is no warning if previous VB_BLOCKS have <VB_THRESHOLD blocks with unknown versionbits version.")
         # Build one period of blocks with < VB_THRESHOLD blocks signaling some unknown bit
         self.send_blocks_with_version(node.p2p, VB_THRESHOLD - 1, VB_UNKNOWN_VERSION)
-        node.generate(VB_PERIOD - VB_THRESHOLD + 1)
+        node.generatetoaddress(VB_PERIOD - VB_THRESHOLD + 1, node_deterministic_address)
 
         # Check that we're not getting any versionbit-related errors in get*info()
         assert(not VB_PATTERN.match(node.getmininginfo()["warnings"]))
@@ -83,7 +81,7 @@ def run_test(self):
         self.log.info("Check that there is a warning if >50 blocks in the last 100 were an unknown version")
         # Build one period of blocks with VB_THRESHOLD blocks signaling some unknown bit
         self.send_blocks_with_version(node.p2p, VB_THRESHOLD, VB_UNKNOWN_VERSION)
-        node.generate(VB_PERIOD - VB_THRESHOLD)
+        node.generatetoaddress(VB_PERIOD - VB_THRESHOLD, node_deterministic_address)
 
         # Check that get*info() shows the 51/100 unknown block version error.
         assert(WARN_UNKNOWN_RULES_MINED in node.getmininginfo()["warnings"])
@@ -92,16 +90,16 @@ def run_test(self):
         self.log.info("Check that there is a warning if previous VB_BLOCKS have >=VB_THRESHOLD blocks with unknown versionbits version.")
         # Mine a period worth of expected blocks so the generic block-version warning
         # is cleared. This will move the versionbit state to ACTIVE.
-        node.generate(VB_PERIOD)
+        node.generatetoaddress(VB_PERIOD, node_deterministic_address)
 
         # Stop-start the node. This is required because bitcoind will only warn once about unknown versions or unknown rules activating.
         self.restart_node(0)
 
         # Generating one block guarantees that we'll get out of IBD
-        node.generate(1)
+        node.generatetoaddress(1, node_deterministic_address)
         wait_until(lambda: not node.getblockchaininfo()['initialblockdownload'], timeout=10, lock=mininode_lock)
         # Generating one more block will be enough to generate an error.
-        node.generate(1)
+        node.generatetoaddress(1, node_deterministic_address)
         # Check that get*info() shows the versionbits unknown rules warning
         assert(WARN_UNKNOWN_RULES_ACTIVE in node.getmininginfo()["warnings"])
         assert(WARN_UNKNOWN_RULES_ACTIVE in node.getnetworkinfo()["warnings"])
diff --git a/test/bitcoin_functional/functional/interface_bitcoin_cli.py b/test/bitcoin_functional/functional/interface_bitcoin_cli.py
index 7bb93e9e350cb..aed439339f5c4 100755
--- a/test/bitcoin_functional/functional/interface_bitcoin_cli.py
+++ b/test/bitcoin_functional/functional/interface_bitcoin_cli.py
@@ -12,26 +12,24 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         """Main test logic"""
 
         cli_response = self.nodes[0].cli("-version").send_cli()
         assert("Bitcoin Core RPC client version" in cli_response)
 
-        self.log.info("Compare responses from gewalletinfo RPC and `bitcoin-cli getwalletinfo`")
-        cli_response = self.nodes[0].cli.getwalletinfo()
-        rpc_response = self.nodes[0].getwalletinfo()
-        assert_equal(cli_response, rpc_response)
+        self.log.info("Compare responses from getwalletinfo RPC and `bitcoin-cli getwalletinfo`")
+        if self.is_wallet_compiled():
+            cli_response = self.nodes[0].cli.getwalletinfo()
+            rpc_response = self.nodes[0].getwalletinfo()
+            assert_equal(cli_response, rpc_response)
 
         self.log.info("Compare responses from getblockchaininfo RPC and `bitcoin-cli getblockchaininfo`")
         cli_response = self.nodes[0].cli.getblockchaininfo()
         rpc_response = self.nodes[0].getblockchaininfo()
         assert_equal(cli_response, rpc_response)
 
-        user, password = get_auth_cookie(self.nodes[0].datadir, self.chain)
+        user, password = get_auth_cookie(self.nodes[0].datadir)
 
         self.log.info("Test -stdinrpcpass option")
         assert_equal(0, self.nodes[0].cli('-rpcuser=%s' % user, '-stdinrpcpass', input=password).getblockcount())
@@ -52,26 +50,30 @@ def run_test(self):
 
         self.log.info("Compare responses from `bitcoin-cli -getinfo` and the RPCs data is retrieved from.")
         cli_get_info = self.nodes[0].cli('-getinfo').send_cli()
-        wallet_info = self.nodes[0].getwalletinfo()
+        if self.is_wallet_compiled():
+            wallet_info = self.nodes[0].getwalletinfo()
         network_info = self.nodes[0].getnetworkinfo()
         blockchain_info = self.nodes[0].getblockchaininfo()
 
         assert_equal(cli_get_info['version'], network_info['version'])
         assert_equal(cli_get_info['protocolversion'], network_info['protocolversion'])
-        assert_equal(cli_get_info['walletversion'], wallet_info['walletversion'])
-        assert_equal(cli_get_info['balance'], wallet_info['balance'])
+        if self.is_wallet_compiled():
+            assert_equal(cli_get_info['walletversion'], wallet_info['walletversion'])
+            assert_equal(cli_get_info['balance'], wallet_info['balance'])
         assert_equal(cli_get_info['blocks'], blockchain_info['blocks'])
         assert_equal(cli_get_info['timeoffset'], network_info['timeoffset'])
         assert_equal(cli_get_info['connections'], network_info['connections'])
         assert_equal(cli_get_info['proxy'], network_info['networks'][0]['proxy'])
         assert_equal(cli_get_info['difficulty'], blockchain_info['difficulty'])
         assert_equal(cli_get_info['testnet'], blockchain_info['chain'] == "test")
-        assert_equal(cli_get_info['balance'], wallet_info['balance'])
-        assert_equal(cli_get_info['keypoololdest'], wallet_info['keypoololdest'])
-        assert_equal(cli_get_info['keypoolsize'], wallet_info['keypoolsize'])
-        assert_equal(cli_get_info['paytxfee'], wallet_info['paytxfee'])
-        assert_equal(cli_get_info['relayfee'], network_info['relayfee'])
-        # unlocked_until is not tested because the wallet is not encrypted
+        if self.is_wallet_compiled():
+            assert_equal(cli_get_info['balance'], wallet_info['balance'])
+            assert_equal(cli_get_info['keypoololdest'], wallet_info['keypoololdest'])
+            assert_equal(cli_get_info['keypoolsize'], wallet_info['keypoolsize'])
+            assert_equal(cli_get_info['paytxfee'], wallet_info['paytxfee'])
+            assert_equal(cli_get_info['relayfee'], network_info['relayfee'])
+            # unlocked_until is not tested because the wallet is not encrypted
+
 
 if __name__ == '__main__':
     TestBitcoinCli().main()
diff --git a/test/bitcoin_functional/functional/interface_zmq.py b/test/bitcoin_functional/functional/interface_zmq.py
index 1c518eab7582a..94fea37090742 100755
--- a/test/bitcoin_functional/functional/interface_zmq.py
+++ b/test/bitcoin_functional/functional/interface_zmq.py
@@ -5,6 +5,7 @@
 """Test the ZMQ notification interface."""
 import struct
 
+from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.messages import CTransaction
 from test_framework.util import (
@@ -14,6 +15,7 @@
 )
 from io import BytesIO
 
+ADDRESS = "tcp://127.0.0.1:28332"
 
 class ZMQSubscriber:
     def __init__(self, socket, topic):
@@ -41,7 +43,6 @@ def set_test_params(self):
     def skip_test_if_missing_module(self):
         self.skip_if_no_py3_zmq()
         self.skip_if_no_bitcoind_zmq()
-        self.skip_if_no_wallet()
 
     def setup_nodes(self):
         import zmq
@@ -51,11 +52,10 @@ def setup_nodes(self):
         # that this test fails if the publishing order changes.
         # Note that the publishing order is not defined in the documentation and
         # is subject to change.
-        address = "tcp://127.0.0.1:28332"
         self.zmq_context = zmq.Context()
         socket = self.zmq_context.socket(zmq.SUB)
         socket.set(zmq.RCVTIMEO, 60000)
-        socket.connect(address)
+        socket.connect(ADDRESS)
 
         # Subscribe to all available topics.
         self.hashblock = ZMQSubscriber(socket, b"hashblock")
@@ -64,11 +64,12 @@ def setup_nodes(self):
         self.rawtx = ZMQSubscriber(socket, b"rawtx")
 
         self.extra_args = [
-            ["-zmqpub%s=%s" % (sub.topic.decode(), address) for sub in [self.hashblock, self.hashtx, self.rawblock, self.rawtx]],
+            ["-zmqpub%s=%s" % (sub.topic.decode(), ADDRESS) for sub in [self.hashblock, self.hashtx, self.rawblock, self.rawtx]],
             [],
         ]
         self.add_nodes(self.num_nodes, self.extra_args)
         self.start_nodes()
+        self.import_deterministic_coinbase_privkeys()
 
     def run_test(self):
         try:
@@ -81,7 +82,7 @@ def run_test(self):
     def _zmq_test(self):
         num_blocks = 5
         self.log.info("Generate %(n)d blocks (and %(n)d coinbase txes)" % {"n": num_blocks})
-        genhashes = self.nodes[0].generate(num_blocks)
+        genhashes = self.nodes[0].generatetoaddress(num_blocks, ADDRESS_BCRT1_UNSPENDABLE)
         self.sync_all()
 
         for x in range(num_blocks):
@@ -105,17 +106,29 @@ def _zmq_test(self):
             block = self.rawblock.receive()
             assert_equal(genhashes[x], bytes_to_hex_str(hash256(block[:80])))
 
-        self.log.info("Wait for tx from second node")
-        payment_txid = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.0)
-        self.sync_all()
+        if self.is_wallet_compiled():
+            self.log.info("Wait for tx from second node")
+            payment_txid = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.0)
+            self.sync_all()
+
+            # Should receive the broadcasted txid.
+            txid = self.hashtx.receive()
+            assert_equal(payment_txid, bytes_to_hex_str(txid))
+
+            # Should receive the broadcasted raw transaction.
+            hex = self.rawtx.receive()
+            assert_equal(payment_txid, bytes_to_hex_str(hash256(hex)))
+
 
-        # Should receive the broadcasted txid.
-        txid = self.hashtx.receive()
-        assert_equal(payment_txid, bytes_to_hex_str(txid))
+        self.log.info("Test the getzmqnotifications RPC")
+        assert_equal(self.nodes[0].getzmqnotifications(), [
+            {"type": "pubhashblock", "address": ADDRESS, "hwm": 1000},
+            {"type": "pubhashtx", "address": ADDRESS, "hwm": 1000},
+            {"type": "pubrawblock", "address": ADDRESS, "hwm": 1000},
+            {"type": "pubrawtx", "address": ADDRESS, "hwm": 1000},
+        ])
 
-        # Should receive the broadcasted raw transaction.
-        hex = self.rawtx.receive()
-        assert_equal(payment_txid, bytes_to_hex_str(hash256(hex)))
+        assert_equal(self.nodes[1].getzmqnotifications(), [])
 
 if __name__ == '__main__':
     ZMQTest().main()
diff --git a/test/bitcoin_functional/functional/mempool_persist.py b/test/bitcoin_functional/functional/mempool_persist.py
index df0c326004293..b4e9d967fd6cc 100755
--- a/test/bitcoin_functional/functional/mempool_persist.py
+++ b/test/bitcoin_functional/functional/mempool_persist.py
@@ -97,8 +97,8 @@ def run_test(self):
         self.start_node(0)
         wait_until(lambda: len(self.nodes[0].getrawmempool()) == 5)
 
-        mempooldat0 = os.path.join(self.nodes[0].datadir, 'regtest2', 'mempool.dat')
-        mempooldat1 = os.path.join(self.nodes[1].datadir, 'regtest2', 'mempool.dat')
+        mempooldat0 = os.path.join(self.nodes[0].datadir, 'regtest', 'mempool.dat')
+        mempooldat1 = os.path.join(self.nodes[1].datadir, 'regtest', 'mempool.dat')
         self.log.debug("Remove the mempool.dat file. Verify that savemempool to disk via RPC re-creates it")
         os.remove(mempooldat0)
         self.nodes[0].savemempool()
diff --git a/test/bitcoin_functional/functional/mempool_resurrect.py b/test/bitcoin_functional/functional/mempool_resurrect.py
index d035ca907a5d7..845beb551efdd 100755
--- a/test/bitcoin_functional/functional/mempool_resurrect.py
+++ b/test/bitcoin_functional/functional/mempool_resurrect.py
@@ -47,12 +47,11 @@ def run_test(self):
             tx = self.nodes[0].gettransaction(txid)
             assert(tx["confirmations"] > 0)
 
-        # Use invalidateblock to re-org back; all transactions should
-        # end up unconfirmed and back in the mempool
+        # Use invalidateblock to re-org back
         for node in self.nodes:
             node.invalidateblock(blocks[0])
 
-        # mempool should be empty, all txns confirmed
+        # All txns should be back in mempool with 0 confirmations
         assert_equal(set(self.nodes[0].getrawmempool()), set(spends1_id+spends2_id))
         for txid in spends1_id+spends2_id:
             tx = self.nodes[0].gettransaction(txid)
diff --git a/test/bitcoin_functional/functional/mining_basic.py b/test/bitcoin_functional/functional/mining_basic.py
index dd187796453ce..ff55ea5528247 100755
--- a/test/bitcoin_functional/functional/mining_basic.py
+++ b/test/bitcoin_functional/functional/mining_basic.py
@@ -38,9 +38,6 @@ def set_test_params(self):
         self.num_nodes = 2
         self.setup_clean_chain = False
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         node = self.nodes[0]
 
@@ -53,7 +50,7 @@ def assert_submitblock(block, result_str_1, result_str_2=None):
         self.log.info('getmininginfo')
         mining_info = node.getmininginfo()
         assert_equal(mining_info['blocks'], 200)
-        assert_equal(mining_info['chain'], 'regtest2')
+        assert_equal(mining_info['chain'], 'regtest')
         assert_equal(mining_info['currentblocktx'], 0)
         assert_equal(mining_info['currentblockweight'], 0)
         assert_equal(mining_info['difficulty'], Decimal('4.656542373906925E-10'))
@@ -61,7 +58,7 @@ def assert_submitblock(block, result_str_1, result_str_2=None):
         assert_equal(mining_info['pooledtx'], 0)
 
         # Mine a block to leave initial block download
-        node.generate(1)
+        node.generatetoaddress(1, node.get_deterministic_priv_key().address)
         tmpl = node.getblocktemplate()
         self.log.info("getblocktemplate: Test capability advertised")
         assert 'proposal' in tmpl['capabilities']
@@ -212,7 +209,7 @@ def chain_tip(b_hash, *, status='headers-only', branchlen=1):
         assert chain_tip(block.hash, status='active', branchlen=0) in node.getchaintips()
 
         # Building a few blocks should give the same results
-        node.generate(10)
+        node.generatetoaddress(10, node.get_deterministic_priv_key().address)
         assert_raises_rpc_error(-25, 'time-too-old', lambda: node.submitheader(hexdata=b2x(CBlockHeader(bad_block_time).serialize())))
         assert_raises_rpc_error(-25, 'bad-prevblk', lambda: node.submitheader(hexdata=b2x(CBlockHeader(bad_block2).serialize())))
         node.submitheader(hexdata=b2x(CBlockHeader(block).serialize()))
diff --git a/test/bitcoin_functional/functional/mining_prioritisetransaction.py b/test/bitcoin_functional/functional/mining_prioritisetransaction.py
index 92590717f3c4d..c5ddee56f1a16 100755
--- a/test/bitcoin_functional/functional/mining_prioritisetransaction.py
+++ b/test/bitcoin_functional/functional/mining_prioritisetransaction.py
@@ -29,7 +29,8 @@ def run_test(self):
         assert_raises_rpc_error(-1, "prioritisetransaction", self.nodes[0].prioritisetransaction, '', 0, 0, 0)
 
         # Test `prioritisetransaction` invalid `txid`
-        assert_raises_rpc_error(-1, "txid must be hexadecimal string", self.nodes[0].prioritisetransaction, txid='foo', fee_delta=0)
+        assert_raises_rpc_error(-8, "txid must be of length 64 (not 3, for 'foo')", self.nodes[0].prioritisetransaction, txid='foo', fee_delta=0)
+        assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'Zd1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000')", self.nodes[0].prioritisetransaction, txid='Zd1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000', fee_delta=0)
 
         # Test `prioritisetransaction` invalid `dummy`
         txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
diff --git a/test/bitcoin_functional/functional/p2p_compactblocks.py b/test/bitcoin_functional/functional/p2p_compactblocks.py
index 3a5bdf806b291..f0dee59b5cc97 100755
--- a/test/bitcoin_functional/functional/p2p_compactblocks.py
+++ b/test/bitcoin_functional/functional/p2p_compactblocks.py
@@ -7,7 +7,6 @@
 Version 1 compact blocks are pre-segwit (txids)
 Version 2 compact blocks are post-segwit (wtxids)
 """
-
 from decimal import Decimal
 import random
 
@@ -99,7 +98,7 @@ def set_test_params(self):
         self.num_nodes = 2
         # This test was written assuming SegWit is activated using BIP9 at height 432 (3x confirmation window).
         # TODO: Rewrite this test to support SegWit being always active.
-        self.extra_args = [["-vbparams=segwit:0:0"], ["-vbparams=segwit:0:999999999999", "-txindex", "-deprecatedrpc=addwitnessaddress"]]
+        self.extra_args = [["-vbparams=segwit:0:0"], ["-vbparams=segwit:0:999999999999", "-txindex"]]
         self.utxos = []
 
     def skip_test_if_missing_module(self):
@@ -189,7 +188,7 @@ def check_announcement_of_new_block(node, peer, predicate):
 
         # Now try a SENDCMPCT message with too-high version
         sendcmpct = msg_sendcmpct()
-        sendcmpct.version = preferred_version+1
+        sendcmpct.version = preferred_version + 1
         sendcmpct.announce = True
         test_node.send_and_ping(sendcmpct)
         check_announcement_of_new_block(node, test_node, lambda p: "cmpctblock" not in p.last_message)
@@ -220,7 +219,7 @@ def check_announcement_of_new_block(node, peer, predicate):
         check_announcement_of_new_block(node, test_node, lambda p: "cmpctblock" in p.last_message)
 
         # Try one more time, after sending a version-1, announce=false message.
-        sendcmpct.version = preferred_version-1
+        sendcmpct.version = preferred_version - 1
         sendcmpct.announce = False
         test_node.send_and_ping(sendcmpct)
         check_announcement_of_new_block(node, test_node, lambda p: "cmpctblock" in p.last_message)
@@ -234,7 +233,7 @@ def check_announcement_of_new_block(node, peer, predicate):
         if old_node is not None:
             # Verify that a peer using an older protocol version can receive
             # announcements from this node.
-            sendcmpct.version = preferred_version-1
+            sendcmpct.version = preferred_version - 1
             sendcmpct.announce = True
             old_node.send_and_ping(sendcmpct)
             # Header sync
@@ -265,9 +264,9 @@ def test_compactblock_construction(self, node, test_node, version, use_witness_a
         if use_witness_address:
             # Want at least one segwit spend, so move all funds to
             # a witness address.
-            address = node.addwitnessaddress(address)
+            address = node.getnewaddress(address_type='bech32')
             value_to_send = node.getbalance()
-            node.sendtoaddress(address, satoshi_round(value_to_send-Decimal(0.1)))
+            node.sendtoaddress(address, satoshi_round(value_to_send - Decimal(0.1)))
             node.generate(1)
 
         segwit_tx_generated = False
@@ -279,7 +278,7 @@ def test_compactblock_construction(self, node, test_node, version, use_witness_a
                 segwit_tx_generated = True
 
         if use_witness_address:
-            assert(segwit_tx_generated) # check that our test is not broken
+            assert segwit_tx_generated  # check that our test is not broken
 
         # Wait until we've seen the block announcement for the resulting tip
         tip = int(node.getbestblockhash(), 16)
@@ -293,7 +292,7 @@ def test_compactblock_construction(self, node, test_node, version, use_witness_a
         block_hash = int(node.generate(1)[0], 16)
 
         # Store the raw block in our internal format.
-        block = FromHex(CBlock(), node.getblock("%02x" % block_hash, False))
+        block = FromHex(CBlock(), node.getblock("%064x" % block_hash, False))
         for tx in block.vtx:
             tx.calc_sha256()
         block.rehash()
@@ -403,8 +402,7 @@ def test_compactblock_requests(self, node, test_node, version, segwit):
             coinbase_hash = block.vtx[0].sha256
             if version == 2:
                 coinbase_hash = block.vtx[0].calc_sha256(True)
-            comp_block.shortids = [
-                    calculate_shortid(k0, k1, coinbase_hash) ]
+            comp_block.shortids = [calculate_shortid(k0, k1, coinbase_hash)]
             test_node.send_and_ping(msg_cmpctblock(comp_block.to_p2p()))
             assert_equal(int(node.getbestblockhash(), 16), block.hashPrevBlock)
             # Expect a getblocktxn message.
@@ -443,7 +441,7 @@ def build_block_with_transactions(self, node, utxo, num_transactions):
     # node needs, and that responding to them causes the block to be
     # reconstructed.
     def test_getblocktxn_requests(self, node, test_node, version):
-        with_witness = (version==2)
+        with_witness = (version == 2)
 
         def test_getblocktxn_response(compact_block, peer, expected_result):
             msg = msg_cmpctblock(compact_block.to_p2p())
@@ -470,7 +468,7 @@ def test_tip_after_message(node, peer, msg, tip):
 
         msg_bt = msg_blocktxn()
         if with_witness:
-            msg_bt = msg_witness_blocktxn() # serialize with witnesses
+            msg_bt = msg_witness_blocktxn()  # serialize with witnesses
         msg_bt.block_transactions = BlockTransactions(block.sha256, block.vtx[1:])
         test_tip_after_message(node, test_node, msg_bt, block.sha256)
 
@@ -560,7 +558,7 @@ def test_incorrect_blocktxn_response(self, node, test_node, version):
         # verifying that the block isn't marked bad permanently. This is good
         # enough for now.
         msg = msg_blocktxn()
-        if version==2:
+        if version == 2:
             msg = msg_witness_blocktxn()
         msg.block_transactions = BlockTransactions(block.sha256, [block.vtx[5]] + block.vtx[7:])
         test_node.send_and_ping(msg)
@@ -571,11 +569,11 @@ def test_incorrect_blocktxn_response(self, node, test_node, version):
         # We should receive a getdata request
         wait_until(lambda: "getdata" in test_node.last_message, timeout=10, lock=mininode_lock)
         assert_equal(len(test_node.last_message["getdata"].inv), 1)
-        assert(test_node.last_message["getdata"].inv[0].type == 2 or test_node.last_message["getdata"].inv[0].type == 2|MSG_WITNESS_FLAG)
+        assert(test_node.last_message["getdata"].inv[0].type == 2 or test_node.last_message["getdata"].inv[0].type == 2 | MSG_WITNESS_FLAG)
         assert_equal(test_node.last_message["getdata"].inv[0].hash, block.sha256)
 
         # Deliver the block
-        if version==2:
+        if version == 2:
             test_node.send_and_ping(msg_witness_block(block))
         else:
             test_node.send_and_ping(msg_block(block))
@@ -655,7 +653,7 @@ def test_compactblocks_not_at_tip(self, node, test_node):
 
         # Generate an old compactblock, and verify that it's not accepted.
         cur_height = node.getblockcount()
-        hashPrevBlock = int(node.getblockhash(cur_height-5), 16)
+        hashPrevBlock = int(node.getblockhash(cur_height - 5), 16)
         block = self.build_block_on_tip(node)
         block.hashPrevBlock = hashPrevBlock
         block.solve()
@@ -684,7 +682,7 @@ def test_compactblocks_not_at_tip(self, node, test_node):
             assert "blocktxn" not in test_node.last_message
 
     def activate_segwit(self, node):
-        node.generate(144*3)
+        node.generate(144 * 3)
         assert_equal(get_bip9_status(node, "segwit")["status"], 'active')
 
     def test_end_to_end_block_relay(self, node, listeners):
@@ -780,7 +778,7 @@ def announce_cmpct_block(node, peer):
             delivery_peer.send_message(msg_tx(tx))
         delivery_peer.sync_with_ping()
 
-        cmpct_block.prefilled_txn[0].tx.wit.vtxinwit = [ CTxInWitness() ]
+        cmpct_block.prefilled_txn[0].tx.wit.vtxinwit = [CTxInWitness()]
         cmpct_block.prefilled_txn[0].tx.wit.vtxinwit[0].scriptWitness.stack = [ser_uint256(0)]
 
         cmpct_block.use_witness = True
@@ -886,7 +884,7 @@ def run_test(self):
         self.log.info("Syncing nodes...")
         assert(self.nodes[0].getbestblockhash() != self.nodes[1].getbestblockhash())
         while (self.nodes[0].getblockcount() > self.nodes[1].getblockcount()):
-            block_hash = self.nodes[0].getblockhash(self.nodes[1].getblockcount()+1)
+            block_hash = self.nodes[0].getblockhash(self.nodes[1].getblockcount() + 1)
             self.nodes[1].submitblock(self.nodes[0].getblock(block_hash, False))
         assert_equal(self.nodes[0].getbestblockhash(), self.nodes[1].getbestblockhash())
 
diff --git a/test/bitcoin_functional/functional/p2p_fingerprint.py b/test/bitcoin_functional/functional/p2p_fingerprint.py
index 884fb4b063335..fab088719756c 100755
--- a/test/bitcoin_functional/functional/p2p_fingerprint.py
+++ b/test/bitcoin_functional/functional/p2p_fingerprint.py
@@ -30,9 +30,6 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     # Build a chain of blocks on top of given one
     def build_chain(self, nblocks, prev_hash, prev_height, prev_median_time):
         blocks = []
@@ -83,7 +80,7 @@ def run_test(self):
         self.nodes[0].setmocktime(int(time.time()) - 60 * 24 * 60 * 60)
 
         # Generating a chain of 10 blocks
-        block_hashes = self.nodes[0].generate(nblocks=10)
+        block_hashes = self.nodes[0].generatetoaddress(10, self.nodes[0].get_deterministic_priv_key().address)
 
         # Create longer chain starting 2 blocks before current tip
         height = len(block_hashes) - 2
@@ -114,7 +111,7 @@ def run_test(self):
 
         # Longest chain is extended so stale is much older than chain tip
         self.nodes[0].setmocktime(0)
-        tip = self.nodes[0].generate(nblocks=1)[0]
+        tip = self.nodes[0].generatetoaddress(1, self.nodes[0].get_deterministic_priv_key().address)[0]
         assert_equal(self.nodes[0].getblockcount(), 14)
 
         # Send getdata & getheaders to refresh last received getheader message
diff --git a/test/bitcoin_functional/functional/p2p_invalid_block.py b/test/bitcoin_functional/functional/p2p_invalid_block.py
index fd6b84f8b26ba..1e0b876593067 100755
--- a/test/bitcoin_functional/functional/p2p_invalid_block.py
+++ b/test/bitcoin_functional/functional/p2p_invalid_block.py
@@ -24,9 +24,6 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.extra_args = [["-whitelist=127.0.0.1"]]
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         # Add p2p connection to node0
         node = self.nodes[0]  # convenience reference to the node
@@ -48,7 +45,7 @@ def run_test(self):
         node.p2p.send_blocks_and_test([block1], node, success=True)
 
         self.log.info("Mature the block.")
-        node.generate(100)
+        node.generatetoaddress(100, node.get_deterministic_priv_key().address)
 
         best_block = node.getblock(node.getbestblockhash())
         tip = int(node.getbestblockhash(), 16)
@@ -80,9 +77,19 @@ def run_test(self):
         block2.vtx.append(tx2)
         assert_equal(block2.hashMerkleRoot, block2.calc_merkle_root())
         assert_equal(orig_hash, block2.rehash())
-        assert(block2_orig.vtx != block2.vtx)
+        assert block2_orig.vtx != block2.vtx
+
+        node.p2p.send_blocks_and_test([block2], node, success=False, reject_reason='bad-txns-duplicate')
 
-        node.p2p.send_blocks_and_test([block2], node, success=False, request_block=False, reject_reason='bad-txns-duplicate')
+        # Check transactions for duplicate inputs
+        self.log.info("Test duplicate input block.")
+
+        block2_orig.vtx[2].vin.append(block2_orig.vtx[2].vin[0])
+        block2_orig.vtx[2].rehash()
+        block2_orig.hashMerkleRoot = block2_orig.calc_merkle_root()
+        block2_orig.rehash()
+        block2_orig.solve()
+        node.p2p.send_blocks_and_test([block2_orig], node, success=False, reject_reason='bad-txns-inputs-duplicate')
 
         self.log.info("Test very broken block.")
 
@@ -95,7 +102,8 @@ def run_test(self):
         block3.rehash()
         block3.solve()
 
-        node.p2p.send_blocks_and_test([block3], node, success=False, request_block=False, reject_reason='bad-cb-amount')
+        node.p2p.send_blocks_and_test([block3], node, success=False, reject_reason='bad-cb-amount')
+
 
 if __name__ == '__main__':
     InvalidBlockRequestTest().main()
diff --git a/test/bitcoin_functional/functional/p2p_invalid_locator.py b/test/bitcoin_functional/functional/p2p_invalid_locator.py
index 4cc43a4fa4eee..c8c752d1f7cbd 100755
--- a/test/bitcoin_functional/functional/p2p_invalid_locator.py
+++ b/test/bitcoin_functional/functional/p2p_invalid_locator.py
@@ -15,12 +15,9 @@ def set_test_params(self):
         self.num_nodes = 1
         self.setup_clean_chain = False
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         node = self.nodes[0]  # convenience reference to the node
-        node.generate(1)  # Get node out of IBD
+        node.generatetoaddress(1, node.get_deterministic_priv_key().address)  # Get node out of IBD
 
         self.log.info('Test max locator size')
         block_count = node.getblockcount()
diff --git a/test/bitcoin_functional/functional/p2p_invalid_messages.py b/test/bitcoin_functional/functional/p2p_invalid_messages.py
new file mode 100755
index 0000000000000..a2d40fab1a2ab
--- /dev/null
+++ b/test/bitcoin_functional/functional/p2p_invalid_messages.py
@@ -0,0 +1,175 @@
+#!/usr/bin/env python3
+# Copyright (c) 2015-2018 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test node responses to invalid network messages."""
+import struct
+
+from test_framework import messages
+from test_framework.mininode import P2PDataStore
+from test_framework.test_framework import BitcoinTestFramework
+
+
+class msg_unrecognized:
+    """Nonsensical message. Modeled after similar types in test_framework.messages."""
+
+    command = b'badmsg'
+
+    def __init__(self, str_data):
+        self.str_data = str_data.encode() if not isinstance(str_data, bytes) else str_data
+
+    def serialize(self):
+        return messages.ser_string(self.str_data)
+
+    def __repr__(self):
+        return "{}(data={})".format(self.command, self.str_data)
+
+
+class msg_nametoolong(msg_unrecognized):
+
+    command = b'thisnameiswayyyyyyyyytoolong'
+
+
+class InvalidMessagesTest(BitcoinTestFramework):
+
+    def set_test_params(self):
+        self.num_nodes = 1
+        self.setup_clean_chain = True
+
+    def run_test(self):
+        """
+        0. Send a bunch of large (4MB) messages of an unrecognized type. Check to see
+           that it isn't an effective DoS against the node.
+
+        1. Send an oversized (4MB+) message and check that we're disconnected.
+
+        2. Send a few messages with an incorrect data size in the header, ensure the
+           messages are ignored.
+
+        3. Send an unrecognized message with a command name longer than 12 characters.
+
+        """
+        node = self.nodes[0]
+        self.node = node
+        node.add_p2p_connection(P2PDataStore())
+        conn2 = node.add_p2p_connection(P2PDataStore())
+
+        msg_limit = 4 * 1000 * 1000  # 4MB, per MAX_PROTOCOL_MESSAGE_LENGTH
+        valid_data_limit = msg_limit - 5  # Account for the 4-byte length prefix
+
+        #
+        # 0.
+        #
+        # Send as large a message as is valid, ensure we aren't disconnected but
+        # also can't exhaust resources.
+        #
+        msg_at_size = msg_unrecognized("b" * valid_data_limit)
+        assert len(msg_at_size.serialize()) == msg_limit
+
+        with node.assert_memory_usage_stable(perc_increase_allowed=0.03):
+            self.log.info(
+                "Sending a bunch of large, junk messages to test "
+                "memory exhaustion. May take a bit...")
+
+            # Run a bunch of times to test for memory exhaustion.
+            for _ in range(80):
+                node.p2p.send_message(msg_at_size)
+
+            # Check that, even though the node is being hammered by nonsense from one
+            # connection, it can still service other peers in a timely way.
+            for _ in range(20):
+                conn2.sync_with_ping(timeout=2)
+
+            # Peer 1, despite serving up a bunch of nonsense, should still be connected.
+            self.log.info("Waiting for node to drop junk messages.")
+            node.p2p.sync_with_ping(timeout=30)
+            assert node.p2p.is_connected
+
+        #
+        # 1.
+        #
+        # Send an oversized message, ensure we're disconnected.
+        #
+        msg_over_size = msg_unrecognized("b" * (valid_data_limit + 1))
+        assert len(msg_over_size.serialize()) == (msg_limit + 1)
+
+        with node.assert_debug_log(["Oversized message from peer=0, disconnecting"]):
+            # An unknown message type (or *any* message type) over
+            # MAX_PROTOCOL_MESSAGE_LENGTH should result in a disconnect.
+            node.p2p.send_message(msg_over_size)
+            node.p2p.wait_for_disconnect(timeout=4)
+
+        node.disconnect_p2ps()
+        conn = node.add_p2p_connection(P2PDataStore())
+        conn.wait_for_verack()
+
+        #
+        # 2.
+        #
+        # Send messages with an incorrect data size in the header.
+        #
+        actual_size = 100
+        msg = msg_unrecognized("b" * actual_size)
+
+        # TODO: handle larger-than cases. I haven't been able to pin down what behavior to expect.
+        for wrong_size in (2, 77, 78, 79):
+            self.log.info("Sending a message with incorrect size of {}".format(wrong_size))
+
+            # Unmodified message should submit okay.
+            node.p2p.send_and_ping(msg)
+
+            # A message lying about its data size results in a disconnect when the incorrect
+            # data size is less than the actual size.
+            #
+            # TODO: why does behavior change at 78 bytes?
+            #
+            node.p2p.send_raw_message(self._tweak_msg_data_size(msg, wrong_size))
+
+            # For some reason unknown to me, we sometimes have to push additional data to the
+            # peer in order for it to realize a disconnect.
+            try:
+                node.p2p.send_message(messages.msg_ping(nonce=123123))
+            except IOError:
+                pass
+
+            node.p2p.wait_for_disconnect(timeout=10)
+            node.disconnect_p2ps()
+            node.add_p2p_connection(P2PDataStore())
+
+        #
+        # 3.
+        #
+        # Send a message with a too-long command name.
+        #
+        node.p2p.send_message(msg_nametoolong("foobar"))
+        node.p2p.wait_for_disconnect(timeout=4)
+
+        # Node is still up.
+        conn = node.add_p2p_connection(P2PDataStore())
+        conn.sync_with_ping()
+
+
+    def _tweak_msg_data_size(self, message, wrong_size):
+        """
+        Return a raw message based on another message but with an incorrect data size in
+        the message header.
+        """
+        raw_msg = self.node.p2p.build_message(message)
+
+        bad_size_bytes = struct.pack("<I", wrong_size)
+        num_header_bytes_before_size = 4 + 12
+
+        # Replace the correct data size in the message with an incorrect one.
+        raw_msg_with_wrong_size = (
+            raw_msg[:num_header_bytes_before_size] +
+            bad_size_bytes +
+            raw_msg[(num_header_bytes_before_size + len(bad_size_bytes)):]
+        )
+        assert len(raw_msg) == len(raw_msg_with_wrong_size)
+
+        return raw_msg_with_wrong_size
+
+
+
+if __name__ == '__main__':
+    InvalidMessagesTest().main()
diff --git a/test/bitcoin_functional/functional/p2p_invalid_tx.py b/test/bitcoin_functional/functional/p2p_invalid_tx.py
index 2f19b4d93314b..58e129b57d7c9 100755
--- a/test/bitcoin_functional/functional/p2p_invalid_tx.py
+++ b/test/bitcoin_functional/functional/p2p_invalid_tx.py
@@ -26,9 +26,6 @@ def set_test_params(self):
         self.num_nodes = 1
         self.setup_clean_chain = True
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def bootstrap_p2p(self, *, num_connections=1):
         """Add a P2P connection to the node.
 
@@ -64,7 +61,7 @@ def run_test(self):
         node.p2p.send_blocks_and_test([block], node, success=True)
 
         self.log.info("Mature the block.")
-        self.nodes[0].generate(100)
+        self.nodes[0].generatetoaddress(100, self.nodes[0].get_deterministic_priv_key().address)
 
         # b'\x64' is OP_NOTIF
         # Transaction will be rejected with code 16 (REJECT_INVALID)
diff --git a/test/bitcoin_functional/functional/p2p_leak.py b/test/bitcoin_functional/functional/p2p_leak.py
index 05354d17e1c62..336d34a81d93b 100755
--- a/test/bitcoin_functional/functional/p2p_leak.py
+++ b/test/bitcoin_functional/functional/p2p_leak.py
@@ -93,9 +93,6 @@ def set_test_params(self):
         self.num_nodes = 1
         self.extra_args = [['-banscore=' + str(banscore)]]
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         no_version_bannode = self.nodes[0].add_p2p_connection(CNodeNoVersionBan(), send_version=False, wait_for_verack=False)
         no_version_idlenode = self.nodes[0].add_p2p_connection(CNodeNoVersionIdle(), send_version=False, wait_for_verack=False)
@@ -106,7 +103,7 @@ def run_test(self):
         wait_until(lambda: no_verack_idlenode.version_received, timeout=10, lock=mininode_lock)
 
         # Mine a block and make sure that it's not sent to the connected nodes
-        self.nodes[0].generate(1)
+        self.nodes[0].generatetoaddress(1, self.nodes[0].get_deterministic_priv_key().address)
 
         #Give the node enough time to possibly leak out a message
         time.sleep(5)
diff --git a/test/bitcoin_functional/functional/p2p_leak_tx.py b/test/bitcoin_functional/functional/p2p_leak_tx.py
new file mode 100755
index 0000000000000..dc4d475b2d894
--- /dev/null
+++ b/test/bitcoin_functional/functional/p2p_leak_tx.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python3
+# Copyright (c) 2017-2018 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test that we don't leak txs to inbound peers that we haven't yet announced to"""
+
+from test_framework.messages import msg_getdata, CInv
+from test_framework.mininode import P2PDataStore
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import (
+    assert_equal,
+)
+
+
+class P2PNode(P2PDataStore):
+    def on_inv(self, msg):
+        pass
+
+
+class P2PLeakTxTest(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 1
+
+    def skip_test_if_missing_module(self):
+        self.skip_if_no_wallet()
+
+    def run_test(self):
+        gen_node = self.nodes[0]  # The block and tx generating node
+        gen_node.generate(1)
+
+        inbound_peer = self.nodes[0].add_p2p_connection(P2PNode())  # An "attacking" inbound peer
+
+        MAX_REPEATS = 100
+        self.log.info("Running test up to {} times.".format(MAX_REPEATS))
+        for i in range(MAX_REPEATS):
+            self.log.info('Run repeat {}'.format(i + 1))
+            txid = gen_node.sendtoaddress(gen_node.getnewaddress(), 0.01)
+
+            want_tx = msg_getdata()
+            want_tx.inv.append(CInv(t=1, h=int(txid, 16)))
+            inbound_peer.last_message.pop('notfound', None)
+            inbound_peer.send_message(want_tx)
+            inbound_peer.sync_with_ping()
+
+            if inbound_peer.last_message.get('notfound'):
+                self.log.debug('tx {} was not yet announced to us.'.format(txid))
+                self.log.debug("node has responded with a notfound message. End test.")
+                assert_equal(inbound_peer.last_message['notfound'].vec[0].hash, int(txid, 16))
+                inbound_peer.last_message.pop('notfound')
+                break
+            else:
+                self.log.debug('tx {} was already announced to us. Try test again.'.format(txid))
+                assert int(txid, 16) in [inv.hash for inv in inbound_peer.last_message['inv'].inv]
+
+
+if __name__ == '__main__':
+    P2PLeakTxTest().main()
diff --git a/test/bitcoin_functional/functional/p2p_node_network_limited.py b/test/bitcoin_functional/functional/p2p_node_network_limited.py
index a16c6a1d4743a..359880506ecd6 100755
--- a/test/bitcoin_functional/functional/p2p_node_network_limited.py
+++ b/test/bitcoin_functional/functional/p2p_node_network_limited.py
@@ -34,9 +34,6 @@ def set_test_params(self):
         self.num_nodes = 3
         self.extra_args = [['-prune=550', '-addrmantest'], [], []]
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def disconnect_all(self):
         disconnect_nodes(self.nodes[0], 1)
         disconnect_nodes(self.nodes[1], 0)
@@ -46,8 +43,8 @@ def disconnect_all(self):
         disconnect_nodes(self.nodes[1], 2)
 
     def setup_network(self):
-        super(NodeNetworkLimitedTest, self).setup_network()
-        self.disconnect_all()
+        self.add_nodes(self.num_nodes, self.extra_args)
+        self.start_nodes()
 
     def run_test(self):
         node = self.nodes[0].add_p2p_connection(P2PIgnoreInv())
@@ -62,7 +59,7 @@ def run_test(self):
 
         self.log.info("Mine enough blocks to reach the NODE_NETWORK_LIMITED range.")
         connect_nodes_bi(self.nodes, 0, 1)
-        blocks = self.nodes[1].generate(292)
+        blocks = self.nodes[1].generatetoaddress(292, self.nodes[1].get_deterministic_priv_key().address)
         sync_blocks([self.nodes[0], self.nodes[1]])
 
         self.log.info("Make sure we can max retrieve block at tip-288.")
@@ -105,7 +102,7 @@ def run_test(self):
         self.disconnect_all()
 
         # mine 10 blocks on node 0 (pruned node)
-        self.nodes[0].generate(10)
+        self.nodes[0].generatetoaddress(10, self.nodes[0].get_deterministic_priv_key().address)
 
         # connect node1 (non pruned) with node0 (pruned) and check if the can sync
         connect_nodes_bi(self.nodes, 0, 1)
diff --git a/test/bitcoin_functional/functional/p2p_segwit.py b/test/bitcoin_functional/functional/p2p_segwit.py
index de12ab1ed668f..afbbfa8992ad8 100755
--- a/test/bitcoin_functional/functional/p2p_segwit.py
+++ b/test/bitcoin_functional/functional/p2p_segwit.py
@@ -205,7 +205,7 @@ def build_next_block(self, version=4):
         height = self.nodes[0].getblockcount() + 1
         block_time = self.nodes[0].getblockheader(tip)["mediantime"] + 1
         block = create_block(int(tip, 16), create_coinbase(height), block_time)
-        block.version = version
+        block.nVersion = version
         block.rehash()
         return block
 
@@ -769,12 +769,16 @@ def test_p2sh_witness(self):
         # will require a witness to spend a witness program regardless of
         # segwit activation.  Note that older bitcoind's that are not
         # segwit-aware would also reject this for failing CLEANSTACK.
-        test_transaction_acceptance(self.nodes[0], self.test_node, spend_tx, with_witness=False, accepted=False)
+        with self.nodes[0].assert_debug_log(
+                expected_msgs=(spend_tx.hash, 'was not accepted: non-mandatory-script-verify-flag (Witness program was passed an empty witness)')):
+            test_transaction_acceptance(self.nodes[0], self.test_node, spend_tx, with_witness=False, accepted=False)
 
-        # Try to put the witness script in the script_sig, should also fail.
-        spend_tx.vin[0].script_sig = CScript([p2wsh_pubkey, b'a'])
+        # Try to put the witness script in the scriptSig, should also fail.
+        spend_tx.vin[0].scriptSig = CScript([p2wsh_pubkey, b'a'])
         spend_tx.rehash()
-        test_transaction_acceptance(self.nodes[0], self.test_node, spend_tx, with_witness=False, accepted=False)
+        with self.nodes[0].assert_debug_log(
+                expected_msgs=('Not relaying invalid transaction {}'.format(spend_tx.hash), 'was not accepted: mandatory-script-verify-flag-failed (Script evaluated without error but finished with a false/empty top stack element)')):
+            test_transaction_acceptance(self.nodes[0], self.test_node, spend_tx, with_witness=False, accepted=False)
 
         # Now put the witness script in the witness, should succeed after
         # segwit activates.
diff --git a/test/bitcoin_functional/functional/p2p_sendheaders.py b/test/bitcoin_functional/functional/p2p_sendheaders.py
index 9a782c0bb9938..c7ae57de868b2 100755
--- a/test/bitcoin_functional/functional/p2p_sendheaders.py
+++ b/test/bitcoin_functional/functional/p2p_sendheaders.py
@@ -208,15 +208,12 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 2
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def mine_blocks(self, count):
         """Mine count blocks and return the new tip."""
 
         # Clear out block announcements from each p2p listener
         [x.clear_block_announcements() for x in self.nodes[0].p2ps]
-        self.nodes[0].generate(count)
+        self.nodes[0].generatetoaddress(count, self.nodes[0].get_deterministic_priv_key().address)
         return int(self.nodes[0].getbestblockhash(), 16)
 
     def mine_reorg(self, length):
@@ -226,7 +223,8 @@ def mine_reorg(self, length):
         to-be-reorged-out blocks are mined, so that we don't break later tests.
         return the list of block hashes newly mined."""
 
-        self.nodes[0].generate(length)  # make sure all invalidated blocks are node0's
+        # make sure all invalidated blocks are node0's
+        self.nodes[0].generatetoaddress(length, self.nodes[0].get_deterministic_priv_key().address)
         sync_blocks(self.nodes, wait=0.1)
         for x in self.nodes[0].p2ps:
             x.wait_for_block_announcement(int(self.nodes[0].getbestblockhash(), 16))
@@ -235,7 +233,7 @@ def mine_reorg(self, length):
         tip_height = self.nodes[1].getblockcount()
         hash_to_invalidate = self.nodes[1].getblockhash(tip_height - (length - 1))
         self.nodes[1].invalidateblock(hash_to_invalidate)
-        all_hashes = self.nodes[1].generate(length + 1)  # Must be longer than the orig chain
+        all_hashes = self.nodes[1].generatetoaddress(length + 1, self.nodes[1].get_deterministic_priv_key().address)  # Must be longer than the orig chain
         sync_blocks(self.nodes, wait=0.1)
         return [int(x, 16) for x in all_hashes]
 
@@ -254,7 +252,7 @@ def run_test(self):
         self.test_nonnull_locators(test_node, inv_node)
 
     def test_null_locators(self, test_node, inv_node):
-        tip = self.nodes[0].getblockheader(self.nodes[0].generate(1)[0])
+        tip = self.nodes[0].getblockheader(self.nodes[0].generatetoaddress(1, self.nodes[0].get_deterministic_priv_key().address)[0])
         tip_hash = int(tip["hash"], 16)
 
         inv_node.check_last_inv_announcement(inv=[tip_hash])
@@ -404,7 +402,7 @@ def test_nonnull_locators(self, test_node, inv_node):
 
             block_time += 9
 
-            fork_point = self.nodes[0].getblock("%02x" % new_block_hashes[0])["previousblockhash"]
+            fork_point = self.nodes[0].getblock("%064x" % new_block_hashes[0])["previousblockhash"]
             fork_point = int(fork_point, 16)
 
             # Use getblocks/getdata
diff --git a/test/bitcoin_functional/functional/p2p_unrequested_blocks.py b/test/bitcoin_functional/functional/p2p_unrequested_blocks.py
index 232274f59eaec..11299cbc002f1 100755
--- a/test/bitcoin_functional/functional/p2p_unrequested_blocks.py
+++ b/test/bitcoin_functional/functional/p2p_unrequested_blocks.py
@@ -66,9 +66,6 @@ def set_test_params(self):
         self.num_nodes = 2
         self.extra_args = [[], ["-minimumchainwork=0x10"]]
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def setup_network(self):
         # Node0 will be used to test behavior of processing unrequested blocks
         # from peers which are not whitelisted, while Node1 will be used for
@@ -85,8 +82,8 @@ def run_test(self):
         min_work_node = self.nodes[1].add_p2p_connection(P2PInterface())
 
         # 1. Have nodes mine a block (leave IBD)
-        [ n.generate(1) for n in self.nodes ]
-        tips = [ int("0x" + n.getbestblockhash(), 0) for n in self.nodes ]
+        [n.generatetoaddress(1, n.get_deterministic_priv_key().address) for n in self.nodes]
+        tips = [int("0x" + n.getbestblockhash(), 0) for n in self.nodes]
 
         # 2. Send one block that builds on each tip.
         # This should be accepted by node0
diff --git a/test/bitcoin_functional/functional/rpc_bind.py b/test/bitcoin_functional/functional/rpc_bind.py
index 95dc88fbea82d..53916d529095c 100755
--- a/test/bitcoin_functional/functional/rpc_bind.py
+++ b/test/bitcoin_functional/functional/rpc_bind.py
@@ -52,7 +52,7 @@ def run_allowip_test(self, allow_ips, rpchost, rpcport):
         self.nodes[0].rpchost = None
         self.start_nodes([base_args])
         # connect to node through non-loopback interface
-        node = get_rpc_proxy(rpc_url(self.nodes[0].datadir, 0, "regtest2","%s:%d" % (rpchost, rpcport)), 0, coveragedir=self.options.coveragedir)
+        node = get_rpc_proxy(rpc_url(self.nodes[0].datadir, 0, "%s:%d" % (rpchost, rpcport)), 0, coveragedir=self.options.coveragedir)
         node.getnetworkinfo()
         self.stop_nodes()
 
diff --git a/test/bitcoin_functional/functional/rpc_blockchain.py b/test/bitcoin_functional/functional/rpc_blockchain.py
index 00317a2c08823..92b690176d0fe 100755
--- a/test/bitcoin_functional/functional/rpc_blockchain.py
+++ b/test/bitcoin_functional/functional/rpc_blockchain.py
@@ -48,9 +48,6 @@ class BlockchainTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         self.restart_node(0, extra_args=['-stopatheight=207', '-prune=1'])  # Set extra args with pruning after rescan is complete
 
@@ -128,7 +125,9 @@ def _test_getchaintxstats(self):
 
         # Test `getchaintxstats` invalid `blockhash`
         assert_raises_rpc_error(-1, "JSON value is not a string as expected", self.nodes[0].getchaintxstats, blockhash=0)
-        assert_raises_rpc_error(-5, "Block not found", self.nodes[0].getchaintxstats, blockhash='0')
+        assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 1, for '0')", self.nodes[0].getchaintxstats, blockhash='0')
+        assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].getchaintxstats, blockhash='ZZZ0000000000000000000000000000000000000000000000000000000000000')
+        assert_raises_rpc_error(-5, "Block not found", self.nodes[0].getchaintxstats, blockhash='0000000000000000000000000000000000000000000000000000000000000000')
         blockhash = self.nodes[0].getblockhash(200)
         self.nodes[0].invalidateblock(blockhash)
         assert_raises_rpc_error(-8, "Block is not in main chain", self.nodes[0].getchaintxstats, blockhash=blockhash)
@@ -206,7 +205,9 @@ def _test_gettxoutsetinfo(self):
     def _test_getblockheader(self):
         node = self.nodes[0]
 
-        assert_raises_rpc_error(-5, "Block not found", node.getblockheader, "nonsense")
+        assert_raises_rpc_error(-8, "hash must be of length 64 (not 8, for 'nonsense')", node.getblockheader, "nonsense")
+        assert_raises_rpc_error(-8, "hash must be hexadecimal string (not 'ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844')", node.getblockheader, "ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844")
+        assert_raises_rpc_error(-5, "Block not found", node.getblockheader, "0cf7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844")
 
         besthash = node.getbestblockhash()
         secondbesthash = node.getblockhash(199)
@@ -242,12 +243,12 @@ def _test_getnetworkhashps(self):
 
     def _test_stopatheight(self):
         assert_equal(self.nodes[0].getblockcount(), 200)
-        self.nodes[0].generate(6)
+        self.nodes[0].generatetoaddress(6, self.nodes[0].get_deterministic_priv_key().address)
         assert_equal(self.nodes[0].getblockcount(), 206)
         self.log.debug('Node should not stop at this height')
         assert_raises(subprocess.TimeoutExpired, lambda: self.nodes[0].process.wait(timeout=3))
         try:
-            self.nodes[0].generate(1)
+            self.nodes[0].generatetoaddress(1, self.nodes[0].get_deterministic_priv_key().address)
         except (ConnectionError, http.client.BadStatusLine):
             pass  # The node already shut down before response
         self.log.debug('Node should stop at this height...')
diff --git a/test/bitcoin_functional/functional/rpc_deprecated.py b/test/bitcoin_functional/functional/rpc_deprecated.py
index 58074803ccd7b..588bfbe0833fd 100755
--- a/test/bitcoin_functional/functional/rpc_deprecated.py
+++ b/test/bitcoin_functional/functional/rpc_deprecated.py
@@ -4,12 +4,17 @@
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test deprecation of RPC calls."""
 from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_raises_rpc_error
 
 class DeprecatedRpcTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
         self.setup_clean_chain = True
-        self.extra_args = [[], ["-deprecatedrpc=validateaddress"]]
+        self.extra_args = [[], ["-deprecatedrpc=generate"]]
+
+    def skip_test_if_missing_module(self):
+        # The generate RPC method requires the wallet to be compiled
+        self.skip_if_no_wallet()
 
     def run_test(self):
         # This test should be used to verify correct behaviour of deprecated
@@ -18,7 +23,10 @@ def run_test(self):
         # self.log.info("Make sure that -deprecatedrpc=createmultisig allows it to take addresses")
         # assert_raises_rpc_error(-5, "Invalid public key", self.nodes[0].createmultisig, 1, [self.nodes[0].getnewaddress()])
         # self.nodes[1].createmultisig(1, [self.nodes[1].getnewaddress()])
-        pass
+
+        self.log.info("Test generate RPC")
+        assert_raises_rpc_error(-32, 'The wallet generate rpc method is deprecated', self.nodes[0].rpc.generate, 1)
+        self.nodes[1].generate(1)
 
 if __name__ == '__main__':
     DeprecatedRpcTest().main()
diff --git a/test/bitcoin_functional/functional/rpc_getblockstats.py b/test/bitcoin_functional/functional/rpc_getblockstats.py
index b24bed6adf76a..ca9e24367a324 100755
--- a/test/bitcoin_functional/functional/rpc_getblockstats.py
+++ b/test/bitcoin_functional/functional/rpc_getblockstats.py
@@ -169,6 +169,8 @@ def run_test(self):
         assert_raises_rpc_error(-8, 'Invalid selected statistic aaa%s' % inv_sel_stat,
                                 self.nodes[0].getblockstats, hash_or_height=1, stats=['minfee' , 'aaa%s' % inv_sel_stat])
 
+        assert_raises_rpc_error(-8, 'One or more of the selected stats requires -txindex enabled',
+                                self.nodes[1].getblockstats, hash_or_height=1)
         assert_raises_rpc_error(-8, 'One or more of the selected stats requires -txindex enabled',
                                 self.nodes[1].getblockstats, hash_or_height=self.start_height + self.max_stat_pos)
 
diff --git a/test/bitcoin_functional/functional/rpc_getchaintips.py b/test/bitcoin_functional/functional/rpc_getchaintips.py
index bc19c60dde083..c869c7262f4b2 100755
--- a/test/bitcoin_functional/functional/rpc_getchaintips.py
+++ b/test/bitcoin_functional/functional/rpc_getchaintips.py
@@ -17,9 +17,6 @@ class GetChainTipsTest (BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 4
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def run_test(self):
         tips = self.nodes[0].getchaintips()
         assert_equal(len(tips), 1)
@@ -29,8 +26,8 @@ def run_test(self):
 
         # Split the network and build two chains of different lengths.
         self.split_network()
-        self.nodes[0].generate(10)
-        self.nodes[2].generate(20)
+        self.nodes[0].generatetoaddress(10, self.nodes[0].get_deterministic_priv_key().address)
+        self.nodes[2].generatetoaddress(20, self.nodes[2].get_deterministic_priv_key().address)
         self.sync_all([self.nodes[:2], self.nodes[2:]])
 
         tips = self.nodes[1].getchaintips ()
diff --git a/test/bitcoin_functional/functional/rpc_help.py b/test/bitcoin_functional/functional/rpc_help.py
index be096af892c33..78d6e78aed21a 100755
--- a/test/bitcoin_functional/functional/rpc_help.py
+++ b/test/bitcoin_functional/functional/rpc_help.py
@@ -7,12 +7,18 @@
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_raises_rpc_error
 
+import os
+
 
 class HelpRpcTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
 
     def run_test(self):
+        self.test_categories()
+        self.dump_help()
+
+    def test_categories(self):
         node = self.nodes[0]
 
         # wrong argument count
@@ -37,6 +43,15 @@ def run_test(self):
 
         assert_equal(titles, components)
 
+    def dump_help(self):
+        dump_dir = os.path.join(self.options.tmpdir, 'rpc_help_dump')
+        os.mkdir(dump_dir)
+        calls = [line.split(' ', 1)[0] for line in self.nodes[0].help().splitlines() if line and not line.startswith('==')]
+        for call in calls:
+            with open(os.path.join(dump_dir, call), 'w', encoding='utf-8') as f:
+                # Make sure the node can generate the help at runtime without crashing
+                f.write(self.nodes[0].help(call))
+
 
 if __name__ == '__main__':
     HelpRpcTest().main()
diff --git a/test/bitcoin_functional/functional/rpc_invalidateblock.py b/test/bitcoin_functional/functional/rpc_invalidateblock.py
index 84f7cd05fb403..d8ecdd573aac5 100755
--- a/test/bitcoin_functional/functional/rpc_invalidateblock.py
+++ b/test/bitcoin_functional/functional/rpc_invalidateblock.py
@@ -14,21 +14,18 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 3
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def setup_network(self):
         self.setup_nodes()
 
     def run_test(self):
         self.log.info("Make sure we repopulate setBlockIndexCandidates after InvalidateBlock:")
         self.log.info("Mine 4 blocks on Node 0")
-        self.nodes[0].generate(4)
+        self.nodes[0].generatetoaddress(4, self.nodes[0].get_deterministic_priv_key().address)
         assert(self.nodes[0].getblockcount() == 4)
         besthash = self.nodes[0].getbestblockhash()
 
         self.log.info("Mine competing 6 blocks on Node 1")
-        self.nodes[1].generate(6)
+        self.nodes[1].generatetoaddress(6, self.nodes[1].get_deterministic_priv_key().address)
         assert(self.nodes[1].getblockcount() == 6)
 
         self.log.info("Connect nodes to force a reorg")
@@ -56,7 +53,7 @@ def run_test(self):
         self.nodes[2].invalidateblock(self.nodes[2].getblockhash(3))
         assert(self.nodes[2].getblockcount() == 2)
         self.log.info("..and then mine a block")
-        self.nodes[2].generate(1)
+        self.nodes[2].generatetoaddress(1, self.nodes[2].get_deterministic_priv_key().address)
         self.log.info("Verify all nodes are at the right height")
         time.sleep(5)
         assert_equal(self.nodes[2].getblockcount(), 3)
diff --git a/test/bitcoin_functional/functional/rpc_net.py b/test/bitcoin_functional/functional/rpc_net.py
index a46518200c21c..1e525214fac4b 100755
--- a/test/bitcoin_functional/functional/rpc_net.py
+++ b/test/bitcoin_functional/functional/rpc_net.py
@@ -13,11 +13,14 @@
 from test_framework.util import (
     assert_equal,
     assert_greater_than_or_equal,
+    assert_greater_than,
     assert_raises_rpc_error,
     connect_nodes_bi,
     p2p_port,
     wait_until,
 )
+from test_framework.mininode import P2PInterface
+from test_framework.messages import CAddress, msg_addr, NODE_NETWORK, NODE_WITNESS
 
 class NetTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -31,6 +34,7 @@ def run_test(self):
         self._test_getnetworkinginfo()
         self._test_getaddednodeinfo()
         self._test_getpeerinfo()
+        self._test_getnodeaddresses()
 
     def _test_connection_count(self):
         # connect_nodes_bi connects each node to the other
@@ -101,5 +105,40 @@ def _test_getpeerinfo(self):
         assert_equal(peer_info[0][0]['minfeefilter'], Decimal("0.00000500"))
         assert_equal(peer_info[1][0]['minfeefilter'], Decimal("0.00001000"))
 
+    def _test_getnodeaddresses(self):
+        self.nodes[0].add_p2p_connection(P2PInterface())
+
+        # send some addresses to the node via the p2p message addr
+        msg = msg_addr()
+        imported_addrs = []
+        for i in range(256):
+            a = "123.123.123.{}".format(i)
+            imported_addrs.append(a)
+            addr = CAddress()
+            addr.time = 100000000
+            addr.nServices = NODE_NETWORK | NODE_WITNESS
+            addr.ip = a
+            addr.port = 8333
+            msg.addrs.append(addr)
+        self.nodes[0].p2p.send_and_ping(msg)
+
+        # obtain addresses via rpc call and check they were ones sent in before
+        REQUEST_COUNT = 10
+        node_addresses = self.nodes[0].getnodeaddresses(REQUEST_COUNT)
+        assert_equal(len(node_addresses), REQUEST_COUNT)
+        for a in node_addresses:
+            assert_greater_than(a["time"], 1527811200) # 1st June 2018
+            assert_equal(a["services"], NODE_NETWORK | NODE_WITNESS)
+            assert a["address"] in imported_addrs
+            assert_equal(a["port"], 8333)
+
+        assert_raises_rpc_error(-8, "Address count out of range", self.nodes[0].getnodeaddresses, -1)
+
+        # addrman's size cannot be known reliably after insertion, as hash collisions may occur
+        # so only test that requesting a large number of addresses returns less than that
+        LARGE_REQUEST_COUNT = 10000
+        node_addresses = self.nodes[0].getnodeaddresses(LARGE_REQUEST_COUNT)
+        assert_greater_than(LARGE_REQUEST_COUNT, len(node_addresses))
+
 if __name__ == '__main__':
     NetTest().main()
diff --git a/test/bitcoin_functional/functional/rpc_preciousblock.py b/test/bitcoin_functional/functional/rpc_preciousblock.py
index f383b82bb5e67..72e6e6329f850 100755
--- a/test/bitcoin_functional/functional/rpc_preciousblock.py
+++ b/test/bitcoin_functional/functional/rpc_preciousblock.py
@@ -38,26 +38,24 @@ def set_test_params(self):
         self.setup_clean_chain = True
         self.num_nodes = 3
 
-    def skip_test_if_missing_module(self):
-        self.skip_if_no_wallet()
-
     def setup_network(self):
         self.setup_nodes()
 
     def run_test(self):
         self.log.info("Ensure submitblock can in principle reorg to a competing chain")
-        self.nodes[0].generate(1)
+        gen_address = lambda i: self.nodes[i].get_deterministic_priv_key().address  # A non-wallet address to mine to
+        self.nodes[0].generatetoaddress(1, gen_address(0))
         assert_equal(self.nodes[0].getblockcount(), 1)
-        hashZ = self.nodes[1].generate(2)[-1]
+        hashZ = self.nodes[1].generatetoaddress(2, gen_address(1))[-1]
         assert_equal(self.nodes[1].getblockcount(), 2)
         node_sync_via_rpc(self.nodes[0:3])
         assert_equal(self.nodes[0].getbestblockhash(), hashZ)
 
         self.log.info("Mine blocks A-B-C on Node 0")
-        hashC = self.nodes[0].generate(3)[-1]
+        hashC = self.nodes[0].generatetoaddress(3, gen_address(0))[-1]
         assert_equal(self.nodes[0].getblockcount(), 5)
         self.log.info("Mine competing blocks E-F-G on Node 1")
-        hashG = self.nodes[1].generate(3)[-1]
+        hashG = self.nodes[1].generatetoaddress(3, gen_address(1))[-1]
         assert_equal(self.nodes[1].getblockcount(), 5)
         assert(hashC != hashG)
         self.log.info("Connect nodes and check no reorg occurs")
@@ -86,7 +84,7 @@ def run_test(self):
         self.nodes[1].preciousblock(hashC)
         assert_equal(self.nodes[1].getbestblockhash(), hashC)
         self.log.info("Mine another block (E-F-G-)H on Node 0 and reorg Node 1")
-        self.nodes[0].generate(1)
+        self.nodes[0].generatetoaddress(1, gen_address(0))
         assert_equal(self.nodes[0].getblockcount(), 6)
         sync_blocks(self.nodes[0:2])
         hashH = self.nodes[0].getbestblockhash()
@@ -95,7 +93,7 @@ def run_test(self):
         self.nodes[1].preciousblock(hashC)
         assert_equal(self.nodes[1].getbestblockhash(), hashH)
         self.log.info("Mine competing blocks I-J-K-L on Node 2")
-        self.nodes[2].generate(4)
+        self.nodes[2].generatetoaddress(4, gen_address(2))
         assert_equal(self.nodes[2].getblockcount(), 6)
         hashL = self.nodes[2].getbestblockhash()
         self.log.info("Connect nodes and check no reorg occurs")
diff --git a/test/bitcoin_functional/functional/rpc_psbt.py b/test/bitcoin_functional/functional/rpc_psbt.py
index 54dc87144881a..04d9bb65a6def 100755
--- a/test/bitcoin_functional/functional/rpc_psbt.py
+++ b/test/bitcoin_functional/functional/rpc_psbt.py
@@ -6,7 +6,7 @@
 """
 
 from test_framework.test_framework import BitcoinTestFramework
-from test_framework.util import assert_equal, assert_raises_rpc_error, find_output
+from test_framework.util import assert_equal, assert_raises_rpc_error, find_output, disconnect_nodes, connect_nodes_bi, sync_blocks
 
 import json
 import os
@@ -23,6 +23,45 @@ def set_test_params(self):
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
 
+    def test_utxo_conversion(self):
+        mining_node = self.nodes[2]
+        offline_node = self.nodes[0]
+        online_node = self.nodes[1]
+
+        # Disconnect offline node from others
+        disconnect_nodes(offline_node, 1)
+        disconnect_nodes(online_node, 0)
+        disconnect_nodes(offline_node, 2)
+        disconnect_nodes(mining_node, 0)
+
+        # Mine a transaction that credits the offline address
+        offline_addr = offline_node.getnewaddress(address_type="p2sh-segwit")
+        online_addr = online_node.getnewaddress(address_type="p2sh-segwit")
+        online_node.importaddress(offline_addr, "", False)
+        mining_node.sendtoaddress(address=offline_addr, amount=1.0)
+        mining_node.generate(nblocks=1)
+        sync_blocks([mining_node, online_node])
+
+        # Construct an unsigned PSBT on the online node (who doesn't know the output is Segwit, so will include a non-witness UTXO)
+        utxos = online_node.listunspent(addresses=[offline_addr])
+        raw = online_node.createrawtransaction([{"txid":utxos[0]["txid"], "vout":utxos[0]["vout"]}],[{online_addr:0.9999}])
+        psbt = online_node.walletprocesspsbt(online_node.converttopsbt(raw))["psbt"]
+        assert("non_witness_utxo" in mining_node.decodepsbt(psbt)["inputs"][0])
+
+        # Have the offline node sign the PSBT (which will update the UTXO to segwit)
+        signed_psbt = offline_node.walletprocesspsbt(psbt)["psbt"]
+        assert("witness_utxo" in mining_node.decodepsbt(signed_psbt)["inputs"][0])
+
+        # Make sure we can mine the resulting transaction
+        txid = mining_node.sendrawtransaction(mining_node.finalizepsbt(signed_psbt)["hex"])
+        mining_node.generate(1)
+        sync_blocks([mining_node, online_node])
+        assert_equal(online_node.gettxout(txid,0)["confirmations"], 1)
+
+        # Reconnect
+        connect_nodes_bi(self.nodes, 0, 1)
+        connect_nodes_bi(self.nodes, 0, 2)
+
     def run_test(self):
         # Create and fund a raw tx for sending 10 BTC
         psbtx1 = self.nodes[0].walletcreatefundedpsbt([], {self.nodes[2].getnewaddress():10})['psbt']
@@ -107,6 +146,9 @@ def run_test(self):
         # Make sure that a psbt with signatures cannot be converted
         signedtx = self.nodes[0].signrawtransactionwithwallet(rawtx['hex'])
         assert_raises_rpc_error(-22, "TX decode failed", self.nodes[0].converttopsbt, signedtx['hex'])
+        assert_raises_rpc_error(-22, "TX decode failed", self.nodes[0].converttopsbt, signedtx['hex'], False)
+        # Unless we allow it to convert and strip signatures
+        self.nodes[0].converttopsbt(signedtx['hex'], True)
 
         # Explicitly allow converting non-empty txs
         new_psbt = self.nodes[0].converttopsbt(rawtx['hex'])
@@ -168,6 +210,13 @@ def run_test(self):
             assert tx_in["sequence"] > MAX_BIP125_RBF_SEQUENCE
         assert_equal(decoded_psbt["tx"]["locktime"], 0)
 
+        # Regression test for 14473 (mishandling of already-signed witness transaction):
+        psbtx_info = self.nodes[0].walletcreatefundedpsbt([{"txid":unspent["txid"], "vout":unspent["vout"]}], [{self.nodes[2].getnewaddress():unspent["amount"]+1}])
+        complete_psbt = self.nodes[0].walletprocesspsbt(psbtx_info["psbt"])
+        double_processed_psbt = self.nodes[0].walletprocesspsbt(complete_psbt["psbt"])
+        assert_equal(complete_psbt, double_processed_psbt)
+        # We don't care about the decode result, but decoding must succeed.
+        self.nodes[0].decodepsbt(double_processed_psbt["psbt"])
 
         # BIP 174 Test Vectors
 
@@ -224,6 +273,16 @@ def run_test(self):
             extracted = self.nodes[2].finalizepsbt(extractor['extract'], True)['hex']
             assert_equal(extracted, extractor['result'])
 
+        # Unload extra wallets
+        for i, signer in enumerate(signers):
+            self.nodes[2].unloadwallet("wallet{}".format(i))
+
+        self.test_utxo_conversion()
+
+        # Test that psbts with p2pkh outputs are created properly
+        p2pkh = self.nodes[0].getnewaddress(address_type='legacy')
+        psbt = self.nodes[1].walletcreatefundedpsbt([], [{p2pkh : 1}], 0, {"includeWatching" : True}, True)
+        self.nodes[0].decodepsbt(psbt['psbt'])
 
 if __name__ == '__main__':
     PSBTTest().main()
diff --git a/test/bitcoin_functional/functional/rpc_rawtransaction.py b/test/bitcoin_functional/functional/rpc_rawtransaction.py
index 954700ce98321..8ed490f5521ce 100755
--- a/test/bitcoin_functional/functional/rpc_rawtransaction.py
+++ b/test/bitcoin_functional/functional/rpc_rawtransaction.py
@@ -74,14 +74,15 @@ def run_test(self):
         assert_raises_rpc_error(-1, "createrawtransaction", self.nodes[0].createrawtransaction, [])
 
         # Test `createrawtransaction` invalid extra parameters
-        #assert_raises_rpc_error(-1, "createrawtransaction", self.nodes[0].createrawtransaction, [], {}, 0, False, 'foo')
+        assert_raises_rpc_error(-1, "createrawtransaction", self.nodes[0].createrawtransaction, [], {}, 0, False, 'foo')
 
         # Test `createrawtransaction` invalid `inputs`
         txid = '1d1d4e24ed99057e84c3f80fd8fbec79ed9e1acee37da269356ecea000000000'
         assert_raises_rpc_error(-3, "Expected type array", self.nodes[0].createrawtransaction, 'foo', {})
         assert_raises_rpc_error(-1, "JSON value is not an object as expected", self.nodes[0].createrawtransaction, ['foo'], {})
-        assert_raises_rpc_error(-8, "txid must be hexadecimal string", self.nodes[0].createrawtransaction, [{}], {})
-        assert_raises_rpc_error(-8, "txid must be hexadecimal string", self.nodes[0].createrawtransaction, [{'txid': 'foo'}], {})
+        assert_raises_rpc_error(-1, "JSON value is not a string as expected", self.nodes[0].createrawtransaction, [{}], {})
+        assert_raises_rpc_error(-8, "txid must be of length 64 (not 3, for 'foo')", self.nodes[0].createrawtransaction, [{'txid': 'foo'}], {})
+        assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844')", self.nodes[0].createrawtransaction, [{'txid': 'ZZZ7bb8b1697ea987f3b223ba7819250cae33efacb068d23dc24859824a77844'}], {})
         assert_raises_rpc_error(-8, "Invalid parameter, missing vout key", self.nodes[0].createrawtransaction, [{'txid': txid}], {})
         assert_raises_rpc_error(-8, "Invalid parameter, missing vout key", self.nodes[0].createrawtransaction, [{'txid': txid, 'vout': 'foo'}], {})
         assert_raises_rpc_error(-8, "Invalid parameter, vout must be positive", self.nodes[0].createrawtransaction, [{'txid': txid, 'vout': -1}], {})
@@ -224,9 +225,10 @@ def run_test(self):
         # We should not get the tx if we provide an unrelated block
         assert_raises_rpc_error(-5, "No such transaction found", self.nodes[0].getrawtransaction, tx, True, block2)
         # An invalid block hash should raise the correct errors
-        assert_raises_rpc_error(-8, "parameter 3 must be hexadecimal", self.nodes[0].getrawtransaction, tx, True, True)
-        assert_raises_rpc_error(-8, "parameter 3 must be hexadecimal", self.nodes[0].getrawtransaction, tx, True, "foobar")
-        assert_raises_rpc_error(-8, "parameter 3 must be of length 64", self.nodes[0].getrawtransaction, tx, True, "abcd1234")
+        assert_raises_rpc_error(-1, "JSON value is not a string as expected", self.nodes[0].getrawtransaction, tx, True, True)
+        assert_raises_rpc_error(-8, "parameter 3 must be of length 64 (not 6, for 'foobar')", self.nodes[0].getrawtransaction, tx, True, "foobar")
+        assert_raises_rpc_error(-8, "parameter 3 must be of length 64 (not 8, for 'abcd1234')", self.nodes[0].getrawtransaction, tx, True, "abcd1234")
+        assert_raises_rpc_error(-8, "parameter 3 must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].getrawtransaction, tx, True, "ZZZ0000000000000000000000000000000000000000000000000000000000000")
         assert_raises_rpc_error(-5, "Block hash not found", self.nodes[0].getrawtransaction, tx, True, "0000000000000000000000000000000000000000000000000000000000000000")
         # Undo the blocks and check in_active_chain
         self.nodes[0].invalidateblock(block1)
diff --git a/test/bitcoin_functional/functional/rpc_scantxoutset.py b/test/bitcoin_functional/functional/rpc_scantxoutset.py
index 236a42f57c632..881b839a4e259 100755
--- a/test/bitcoin_functional/functional/rpc_scantxoutset.py
+++ b/test/bitcoin_functional/functional/rpc_scantxoutset.py
@@ -51,7 +51,7 @@ def run_test(self):
 
         self.log.info("Stop node, remove wallet, mine again some blocks...")
         self.stop_node(0)
-        shutil.rmtree(os.path.join(self.nodes[0].datadir, "regtest2", 'wallets'))
+        shutil.rmtree(os.path.join(self.nodes[0].datadir, "regtest", 'wallets'))
         self.start_node(0)
         self.nodes[0].generate(110)
 
@@ -65,6 +65,8 @@ def run_test(self):
         assert_equal(self.nodes[0].scantxoutset("start", [ "addr(" + addr_P2SH_SEGWIT + ")", "addr(" + addr_LEGACY + ")", "combo(" + pubk3 + ")"])['total_amount'], Decimal("0.007"))
 
         self.log.info("Test extended key derivation.")
+        # Run various scans, and verify that the sum of the amounts of the matches corresponds to the expected subset.
+        # Note that all amounts in the UTXO set are powers of 2 multiplied by 0.001 BTC, so each amounts uniquely identifies a subset.
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/0'/0h/0h)"])['total_amount'], Decimal("0.008"))
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/0'/0'/1h)"])['total_amount'], Decimal("0.016"))
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/0h/0'/1500')"])['total_amount'], Decimal("0.032"))
@@ -82,7 +84,7 @@ def run_test(self):
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/1/1)"])['total_amount'], Decimal("8.192"))
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/1/1500)"])['total_amount'], Decimal("16.384"))
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tpubD6NzVbkrYhZ4WaWSyoBvQwbpLkojyoTZPRsgXELWz3Popb3qkjcJyJUGLnL4qHHoQvao8ESaAstxYSnhyswJ76uZPStJRJCTKvosUCJZL5B/1/1/0)"])['total_amount'], Decimal("4.096"))
-        assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tpubD6NzVbkrYhZ4WaWSyoBvQwbpLkojyoTZPRsgXELWz3Popb3qkjcJyJUGLnL4qHHoQvao8ESaAstxYSnhyswJ76uZPStJRJCTKvosUCJZL5B/1/1/1)"])['total_amount'], Decimal("8.192"))
+        assert_equal(self.nodes[0].scantxoutset("start", [ "combo([abcdef88/1/2'/3/4h]tpubD6NzVbkrYhZ4WaWSyoBvQwbpLkojyoTZPRsgXELWz3Popb3qkjcJyJUGLnL4qHHoQvao8ESaAstxYSnhyswJ76uZPStJRJCTKvosUCJZL5B/1/1/1)"])['total_amount'], Decimal("8.192"))
         assert_equal(self.nodes[0].scantxoutset("start", [ "combo(tpubD6NzVbkrYhZ4WaWSyoBvQwbpLkojyoTZPRsgXELWz3Popb3qkjcJyJUGLnL4qHHoQvao8ESaAstxYSnhyswJ76uZPStJRJCTKvosUCJZL5B/1/1/1500)"])['total_amount'], Decimal("16.384"))
         assert_equal(self.nodes[0].scantxoutset("start", [ {"desc": "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/1/*')", "range": 1499}])['total_amount'], Decimal("1.536"))
         assert_equal(self.nodes[0].scantxoutset("start", [ {"desc": "combo(tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/1/*')", "range": 1500}])['total_amount'], Decimal("3.584"))
diff --git a/test/bitcoin_functional/functional/rpc_signrawtransaction.py b/test/bitcoin_functional/functional/rpc_signrawtransaction.py
index 5c07f2ccae51c..291538df64863 100755
--- a/test/bitcoin_functional/functional/rpc_signrawtransaction.py
+++ b/test/bitcoin_functional/functional/rpc_signrawtransaction.py
@@ -45,6 +45,14 @@ def successful_signing_test(self):
         # 2) No script verification error occurred
         assert 'errors' not in rawTxSigned
 
+    def test_with_lock_outputs(self):
+        """Test correct error reporting when trying to sign a locked output"""
+        self.nodes[0].encryptwallet("password")
+
+        rawTx = '020000000156b958f78e3f24e0b2f4e4db1255426b0902027cb37e3ddadb52e37c3557dddb0000000000ffffffff01c0a6b929010000001600149a2ee8c77140a053f36018ac8124a6ececc1668a00000000'
+
+        assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first", self.nodes[0].signrawtransactionwithwallet, rawTx)
+
     def script_verification_error_test(self):
         """Create and sign a raw transaction with valid (vin 0), invalid (vin 1) and one missing (vin 2) input script.
 
@@ -138,6 +146,7 @@ def script_verification_error_test(self):
     def run_test(self):
         self.successful_signing_test()
         self.script_verification_error_test()
+        self.test_with_lock_outputs()
 
 
 if __name__ == '__main__':
diff --git a/test/bitcoin_functional/functional/rpc_txoutproof.py b/test/bitcoin_functional/functional/rpc_txoutproof.py
index 867ba25022a67..8913b8698d84f 100755
--- a/test/bitcoin_functional/functional/rpc_txoutproof.py
+++ b/test/bitcoin_functional/functional/rpc_txoutproof.py
@@ -66,12 +66,18 @@ def run_test(self):
         txid_spent = txin_spent["txid"]
         txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2
 
+        # Invalid txids
+        assert_raises_rpc_error(-8, "txid must be of length 64 (not 32, for '00000000000000000000000000000000')", self.nodes[2].gettxoutproof, ["00000000000000000000000000000000"], blockhash)
+        assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[2].gettxoutproof, ["ZZZ0000000000000000000000000000000000000000000000000000000000000"], blockhash)
+        # Invalid blockhashes
+        assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 32, for '00000000000000000000000000000000')", self.nodes[2].gettxoutproof, [txid_spent], "00000000000000000000000000000000")
+        assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[2].gettxoutproof, [txid_spent], "ZZZ0000000000000000000000000000000000000000000000000000000000000")
         # We can't find the block from a fully-spent tx
         assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[2].gettxoutproof, [txid_spent])
         # We can get the proof if we specify the block
         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_spent], blockhash)), [txid_spent])
         # We can't get the proof if we specify a non-existent block
-        assert_raises_rpc_error(-5, "Block not found", self.nodes[2].gettxoutproof, [txid_spent], "00000000000000000000000000000000")
+        assert_raises_rpc_error(-5, "Block not found", self.nodes[2].gettxoutproof, [txid_spent], "0000000000000000000000000000000000000000000000000000000000000000")
         # We can get the proof if the transaction is unspent
         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_unspent])), [txid_unspent])
         # We can get the proof if we provide a list of transactions and one of them is unspent. The ordering of the list should not matter.
diff --git a/test/bitcoin_functional/functional/test_framework/address.py b/test/bitcoin_functional/functional/test_framework/address.py
index d1fb97b024be2..456d43aa2e683 100644
--- a/test/bitcoin_functional/functional/test_framework/address.py
+++ b/test/bitcoin_functional/functional/test_framework/address.py
@@ -9,8 +9,11 @@
 
 from . import segwit_addr
 
+ADDRESS_BCRT1_UNSPENDABLE = 'bcrt1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq3xueyj'
+
 chars = '123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz'
 
+
 def byte_to_base58(b, version):
     result = ''
     str = bytes_to_hex_str(b)
diff --git a/test/bitcoin_functional/functional/test_framework/authproxy.py b/test/bitcoin_functional/functional/test_framework/authproxy.py
index 900090bb668d0..1140fe9b3e053 100644
--- a/test/bitcoin_functional/functional/test_framework/authproxy.py
+++ b/test/bitcoin_functional/functional/test_framework/authproxy.py
@@ -38,6 +38,7 @@
 import http.client
 import json
 import logging
+import os
 import socket
 import time
 import urllib.parse
@@ -71,19 +72,12 @@ def __init__(self, service_url, service_name=None, timeout=HTTP_TIMEOUT, connect
         self._service_name = service_name
         self.ensure_ascii = ensure_ascii  # can be toggled on the fly by tests
         self.__url = urllib.parse.urlparse(service_url)
-        port = 80 if self.__url.port is None else self.__url.port
         user = None if self.__url.username is None else self.__url.username.encode('utf8')
         passwd = None if self.__url.password is None else self.__url.password.encode('utf8')
         authpair = user + b':' + passwd
         self.__auth_header = b'Basic ' + base64.b64encode(authpair)
-
-        if connection:
-            # Callables re-use the connection of the original proxy
-            self.__conn = connection
-        elif self.__url.scheme == 'https':
-            self.__conn = http.client.HTTPSConnection(self.__url.hostname, port, timeout=timeout)
-        else:
-            self.__conn = http.client.HTTPConnection(self.__url.hostname, port, timeout=timeout)
+        self.timeout = timeout
+        self._set_conn(connection)
 
     def __getattr__(self, name):
         if name.startswith('__') and name.endswith('__'):
@@ -102,6 +96,10 @@ def _request(self, method, path, postdata):
                    'User-Agent': USER_AGENT,
                    'Authorization': self.__auth_header,
                    'Content-type': 'application/json'}
+        if os.name == 'nt':
+            # Windows somehow does not like to re-use connections
+            # TODO: Find out why the connection would disconnect occasionally and make it reusable on Windows
+            self._set_conn()
         try:
             self.__conn.request(method, path, postdata, headers)
             return self._get_response()
@@ -178,3 +176,13 @@ def _get_response(self):
 
     def __truediv__(self, relative_uri):
         return AuthServiceProxy("{}/{}".format(self.__service_url, relative_uri), self._service_name, connection=self.__conn)
+
+    def _set_conn(self, connection=None):
+        port = 80 if self.__url.port is None else self.__url.port
+        if connection:
+            self.__conn = connection
+            self.timeout = connection.timeout
+        elif self.__url.scheme == 'https':
+            self.__conn = http.client.HTTPSConnection(self.__url.hostname, port, timeout=self.timeout)
+        else:
+            self.__conn = http.client.HTTPConnection(self.__url.hostname, port, timeout=self.timeout)
diff --git a/test/bitcoin_functional/functional/test_framework/blocktools.py b/test/bitcoin_functional/functional/test_framework/blocktools.py
index 35004fb588ade..81cce1167bae8 100644
--- a/test/bitcoin_functional/functional/test_framework/blocktools.py
+++ b/test/bitcoin_functional/functional/test_framework/blocktools.py
@@ -169,7 +169,7 @@ def get_legacy_sigopcount_tx(tx, accurate=True):
     return count
 
 def witness_script(use_p2wsh, pubkey):
-    """Create a scriptPubKey for a pay-to-wtiness TxOut.
+    """Create a scriptPubKey for a pay-to-witness TxOut.
 
     This is either a P2WPKH output for the given pubkey, or a P2WSH output of a
     1-of-1 multisig for the given pubkey. Returns the hex encoding of the
diff --git a/test/bitcoin_functional/functional/test_framework/messages.py b/test/bitcoin_functional/functional/test_framework/messages.py
index 0a3907cba4e04..c72cb8835c15b 100755
--- a/test/bitcoin_functional/functional/test_framework/messages.py
+++ b/test/bitcoin_functional/functional/test_framework/messages.py
@@ -13,7 +13,11 @@
 msg_block, msg_tx, msg_headers, etc.:
     data structures that represent network messages
 
-ser_*, deser_*: functions that handle serialization/deserialization."""
+ser_*, deser_*: functions that handle serialization/deserialization.
+
+Classes use __slots__ to ensure extraneous attributes aren't accidentally added
+by tests, compromising their intended effect.
+"""
 from codecs import encode
 import copy
 import hashlib
@@ -31,7 +35,6 @@
 MY_SUBVERSION = b"/python-mininode-tester:0.0.3/"
 MY_RELAY = 1 # from version 70001 onwards, fRelay should be appended to version messages (BIP37)
 
-MAX_INV_SZ = 50000
 MAX_LOCATOR_SZ = 101
 MAX_BLOCK_BASE_SIZE = 1000000
 
@@ -54,9 +57,6 @@
 def sha256(s):
     return hashlib.new('sha256', s).digest()
 
-def ripemd160(s):
-    return hashlib.new('ripemd160', s).digest()
-
 def hash256(s):
     return sha256(sha256(s))
 
@@ -185,7 +185,10 @@ def ToHex(obj):
 
 # Objects that map to bitcoind objects, which can be serialized/deserialized
 
-class CAddress():
+
+class CAddress:
+    __slots__ = ("ip", "nServices", "pchReserved", "port", "time")
+
     def __init__(self):
         self.time = 0
         self.nServices = 1
@@ -215,7 +218,10 @@ def __repr__(self):
         return "CAddress(nServices=%i ip=%s port=%i)" % (self.nServices,
                                                          self.ip, self.port)
 
-class CInv():
+
+class CInv:
+    __slots__ = ("hash", "type")
+
     typemap = {
         0: "Error",
         1: "TX",
@@ -244,7 +250,9 @@ def __repr__(self):
             % (self.typemap[self.type], self.hash)
 
 
-class CBlockLocator():
+class CBlockLocator:
+    __slots__ = ("nVersion", "vHave")
+
     def __init__(self):
         self.nVersion = MY_VERSION
         self.vHave = []
@@ -264,7 +272,9 @@ def __repr__(self):
             % (self.nVersion, repr(self.vHave))
 
 
-class COutPoint():
+class COutPoint:
+    __slots__ = ("hash", "n")
+
     def __init__(self, hash=0, n=0):
         self.hash = hash
         self.n = n
@@ -283,7 +293,9 @@ def __repr__(self):
         return "COutPoint(hash=%064x n=%i)" % (self.hash, self.n)
 
 
-class CTxIn():
+class CTxIn:
+    __slots__ = ("nSequence", "prevout", "scriptSig")
+
     def __init__(self, outpoint=None, scriptSig=b"", nSequence=0):
         if outpoint is None:
             self.prevout = COutPoint()
@@ -311,7 +323,9 @@ def __repr__(self):
                self.nSequence)
 
 
-class CTxOut():
+class CTxOut:
+    __slots__ = ("nValue", "scriptPubKey")
+
     def __init__(self, nValue=0, scriptPubKey=b""):
         self.nValue = nValue
         self.scriptPubKey = scriptPubKey
@@ -332,7 +346,9 @@ def __repr__(self):
                bytes_to_hex_str(self.scriptPubKey))
 
 
-class CScriptWitness():
+class CScriptWitness:
+    __slots__ = ("stack",)
+
     def __init__(self):
         # stack is a vector of strings
         self.stack = []
@@ -347,7 +363,9 @@ def is_null(self):
         return True
 
 
-class CTxInWitness():
+class CTxInWitness:
+    __slots__ = ("scriptWitness",)
+
     def __init__(self):
         self.scriptWitness = CScriptWitness()
 
@@ -364,7 +382,9 @@ def is_null(self):
         return self.scriptWitness.is_null()
 
 
-class CTxWitness():
+class CTxWitness:
+    __slots__ = ("vtxinwit",)
+
     def __init__(self):
         self.vtxinwit = []
 
@@ -392,7 +412,10 @@ def is_null(self):
         return True
 
 
-class CTransaction():
+class CTransaction:
+    __slots__ = ("hash", "nLockTime", "nVersion", "sha256", "vin", "vout",
+                 "wit")
+
     def __init__(self, tx=None):
         if tx is None:
             self.nVersion = 1
@@ -496,7 +519,10 @@ def __repr__(self):
             % (self.nVersion, repr(self.vin), repr(self.vout), repr(self.wit), self.nLockTime)
 
 
-class CBlockHeader():
+class CBlockHeader:
+    __slots__ = ("hash", "hashMerkleRoot", "hashPrevBlock", "nBits", "nNonce",
+                 "nTime", "nVersion", "sha256")
+
     def __init__(self, header=None):
         if header is None:
             self.set_null()
@@ -565,6 +591,8 @@ def __repr__(self):
 
 
 class CBlock(CBlockHeader):
+    __slots__ = ("vtx",)
+
     def __init__(self, header=None):
         super(CBlock, self).__init__(header)
         self.vtx = []
@@ -636,7 +664,9 @@ def __repr__(self):
                time.ctime(self.nTime), self.nBits, self.nNonce, repr(self.vtx))
 
 
-class PrefilledTransaction():
+class PrefilledTransaction:
+    __slots__ = ("index", "tx")
+
     def __init__(self, index=0, tx = None):
         self.index = index
         self.tx = tx
@@ -664,8 +694,12 @@ def serialize_with_witness(self):
     def __repr__(self):
         return "PrefilledTransaction(index=%d, tx=%s)" % (self.index, repr(self.tx))
 
+
 # This is what we send on the wire, in a cmpctblock message.
-class P2PHeaderAndShortIDs():
+class P2PHeaderAndShortIDs:
+    __slots__ = ("header", "nonce", "prefilled_txn", "prefilled_txn_length",
+                 "shortids", "shortids_length")
+
     def __init__(self):
         self.header = CBlockHeader()
         self.nonce = 0
@@ -703,9 +737,11 @@ def serialize(self, with_witness=False):
     def __repr__(self):
         return "P2PHeaderAndShortIDs(header=%s, nonce=%d, shortids_length=%d, shortids=%s, prefilled_txn_length=%d, prefilledtxn=%s" % (repr(self.header), self.nonce, self.shortids_length, repr(self.shortids), self.prefilled_txn_length, repr(self.prefilled_txn))
 
+
 # P2P version of the above that will use witness serialization (for compact
 # block version 2)
 class P2PHeaderAndShortWitnessIDs(P2PHeaderAndShortIDs):
+    __slots__ = ()
     def serialize(self):
         return super(P2PHeaderAndShortWitnessIDs, self).serialize(with_witness=True)
 
@@ -715,9 +751,12 @@ def calculate_shortid(k0, k1, tx_hash):
     expected_shortid &= 0x0000ffffffffffff
     return expected_shortid
 
+
 # This version gets rid of the array lengths, and reinterprets the differential
 # encoding into indices that can be used for lookup.
-class HeaderAndShortIDs():
+class HeaderAndShortIDs:
+    __slots__ = ("header", "nonce", "prefilled_txn", "shortids", "use_witness")
+
     def __init__(self, p2pheaders_and_shortids = None):
         self.header = CBlockHeader()
         self.nonce = 0
@@ -778,7 +817,8 @@ def __repr__(self):
         return "HeaderAndShortIDs(header=%s, nonce=%d, shortids=%s, prefilledtxn=%s" % (repr(self.header), self.nonce, repr(self.shortids), repr(self.prefilled_txn))
 
 
-class BlockTransactionsRequest():
+class BlockTransactionsRequest:
+    __slots__ = ("blockhash", "indexes")
 
     def __init__(self, blockhash=0, indexes = None):
         self.blockhash = blockhash
@@ -818,7 +858,8 @@ def __repr__(self):
         return "BlockTransactionsRequest(hash=%064x indexes=%s)" % (self.blockhash, repr(self.indexes))
 
 
-class BlockTransactions():
+class BlockTransactions:
+    __slots__ = ("blockhash", "transactions")
 
     def __init__(self, blockhash=0, transactions = None):
         self.blockhash = blockhash
@@ -840,12 +881,14 @@ def serialize(self, with_witness=True):
     def __repr__(self):
         return "BlockTransactions(hash=%064x transactions=%s)" % (self.blockhash, repr(self.transactions))
 
-class CPartialMerkleTree():
+
+class CPartialMerkleTree:
+    __slots__ = ("nTransactions", "vBits", "vHash")
+
     def __init__(self):
         self.nTransactions = 0
         self.vHash = []
         self.vBits = []
-        self.fBad = False
 
     def deserialize(self, f):
         self.nTransactions = struct.unpack("<i", f.read(4))[0]
@@ -868,7 +911,10 @@ def serialize(self):
     def __repr__(self):
         return "CPartialMerkleTree(nTransactions=%d, vHash=%s, vBits=%s)" % (self.nTransactions, repr(self.vHash), repr(self.vBits))
 
-class CMerkleBlock():
+
+class CMerkleBlock:
+    __slots__ = ("header", "txn")
+
     def __init__(self):
         self.header = CBlockHeader()
         self.txn = CPartialMerkleTree()
@@ -888,7 +934,9 @@ def __repr__(self):
 
 
 # Objects that correspond to messages on the wire
-class msg_version():
+class msg_version:
+    __slots__ = ("addrFrom", "addrTo", "nNonce", "nRelay", "nServices",
+                 "nStartingHeight", "nTime", "nVersion", "strSubVer")
     command = b"version"
 
     def __init__(self):
@@ -945,7 +993,8 @@ def __repr__(self):
                self.strSubVer, self.nStartingHeight, self.nRelay)
 
 
-class msg_verack():
+class msg_verack:
+    __slots__ = ()
     command = b"verack"
 
     def __init__(self):
@@ -961,7 +1010,8 @@ def __repr__(self):
         return "msg_verack()"
 
 
-class msg_addr():
+class msg_addr:
+    __slots__ = ("addrs",)
     command = b"addr"
 
     def __init__(self):
@@ -977,7 +1027,8 @@ def __repr__(self):
         return "msg_addr(addrs=%s)" % (repr(self.addrs))
 
 
-class msg_inv():
+class msg_inv:
+    __slots__ = ("inv",)
     command = b"inv"
 
     def __init__(self, inv=None):
@@ -996,7 +1047,8 @@ def __repr__(self):
         return "msg_inv(inv=%s)" % (repr(self.inv))
 
 
-class msg_getdata():
+class msg_getdata:
+    __slots__ = ("inv",)
     command = b"getdata"
 
     def __init__(self, inv=None):
@@ -1012,7 +1064,8 @@ def __repr__(self):
         return "msg_getdata(inv=%s)" % (repr(self.inv))
 
 
-class msg_getblocks():
+class msg_getblocks:
+    __slots__ = ("locator", "hashstop")
     command = b"getblocks"
 
     def __init__(self):
@@ -1035,7 +1088,8 @@ def __repr__(self):
             % (repr(self.locator), self.hashstop)
 
 
-class msg_tx():
+class msg_tx:
+    __slots__ = ("tx",)
     command = b"tx"
 
     def __init__(self, tx=CTransaction()):
@@ -1050,13 +1104,16 @@ def serialize(self):
     def __repr__(self):
         return "msg_tx(tx=%s)" % (repr(self.tx))
 
+
 class msg_witness_tx(msg_tx):
+    __slots__ = ()
 
     def serialize(self):
         return self.tx.serialize_with_witness()
 
 
-class msg_block():
+class msg_block:
+    __slots__ = ("block",)
     command = b"block"
 
     def __init__(self, block=None):
@@ -1074,9 +1131,12 @@ def serialize(self):
     def __repr__(self):
         return "msg_block(block=%s)" % (repr(self.block))
 
+
 # for cases where a user needs tighter control over what is sent over the wire
 # note that the user must supply the name of the command, and the data
-class msg_generic():
+class msg_generic:
+    __slots__ = ("command", "data")
+
     def __init__(self, command, data=None):
         self.command = command
         self.data = data
@@ -1087,13 +1147,16 @@ def serialize(self):
     def __repr__(self):
         return "msg_generic()"
 
-class msg_witness_block(msg_block):
 
+class msg_witness_block(msg_block):
+    __slots__ = ()
     def serialize(self):
         r = self.block.serialize(with_witness=True)
         return r
 
-class msg_getaddr():
+
+class msg_getaddr:
+    __slots__ = ()
     command = b"getaddr"
 
     def __init__(self):
@@ -1109,7 +1172,8 @@ def __repr__(self):
         return "msg_getaddr()"
 
 
-class msg_ping():
+class msg_ping:
+    __slots__ = ("nonce",)
     command = b"ping"
 
     def __init__(self, nonce=0):
@@ -1127,7 +1191,8 @@ def __repr__(self):
         return "msg_ping(nonce=%08x)" % self.nonce
 
 
-class msg_pong():
+class msg_pong:
+    __slots__ = ("nonce",)
     command = b"pong"
 
     def __init__(self, nonce=0):
@@ -1145,7 +1210,8 @@ def __repr__(self):
         return "msg_pong(nonce=%08x)" % self.nonce
 
 
-class msg_mempool():
+class msg_mempool:
+    __slots__ = ()
     command = b"mempool"
 
     def __init__(self):
@@ -1160,7 +1226,26 @@ def serialize(self):
     def __repr__(self):
         return "msg_mempool()"
 
-class msg_sendheaders():
+
+class msg_notfound:
+    __slots__ = ("vec", )
+    command = b"notfound"
+
+    def __init__(self, vec=None):
+        self.vec = vec or []
+
+    def deserialize(self, f):
+        self.vec = deser_vector(f, CInv)
+
+    def serialize(self):
+        return ser_vector(self.vec)
+
+    def __repr__(self):
+        return "msg_notfound(vec=%s)" % (repr(self.vec))
+
+
+class msg_sendheaders:
+    __slots__ = ()
     command = b"sendheaders"
 
     def __init__(self):
@@ -1180,7 +1265,8 @@ def __repr__(self):
 # number of entries
 # vector of hashes
 # hash_stop (hash of last desired block header, 0 to get as many as possible)
-class msg_getheaders():
+class msg_getheaders:
+    __slots__ = ("hashstop", "locator",)
     command = b"getheaders"
 
     def __init__(self):
@@ -1205,7 +1291,8 @@ def __repr__(self):
 
 # headers message has
 # <count> <vector of block headers>
-class msg_headers():
+class msg_headers:
+    __slots__ = ("headers",)
     command = b"headers"
 
     def __init__(self, headers=None):
@@ -1225,7 +1312,8 @@ def __repr__(self):
         return "msg_headers(headers=%s)" % repr(self.headers)
 
 
-class msg_reject():
+class msg_reject:
+    __slots__ = ("code", "data", "message", "reason")
     command = b"reject"
     REJECT_MALFORMED = 1
 
@@ -1256,7 +1344,9 @@ def __repr__(self):
         return "msg_reject: %s %d %s [%064x]" \
             % (self.message, self.code, self.reason, self.data)
 
-class msg_feefilter():
+
+class msg_feefilter:
+    __slots__ = ("feerate",)
     command = b"feefilter"
 
     def __init__(self, feerate=0):
@@ -1273,7 +1363,9 @@ def serialize(self):
     def __repr__(self):
         return "msg_feefilter(feerate=%08x)" % self.feerate
 
-class msg_sendcmpct():
+
+class msg_sendcmpct:
+    __slots__ = ("announce", "version")
     command = b"sendcmpct"
 
     def __init__(self):
@@ -1293,7 +1385,9 @@ def serialize(self):
     def __repr__(self):
         return "msg_sendcmpct(announce=%s, version=%lu)" % (self.announce, self.version)
 
-class msg_cmpctblock():
+
+class msg_cmpctblock:
+    __slots__ = ("header_and_shortids",)
     command = b"cmpctblock"
 
     def __init__(self, header_and_shortids = None):
@@ -1311,7 +1405,9 @@ def serialize(self):
     def __repr__(self):
         return "msg_cmpctblock(HeaderAndShortIDs=%s)" % repr(self.header_and_shortids)
 
-class msg_getblocktxn():
+
+class msg_getblocktxn:
+    __slots__ = ("block_txn_request",)
     command = b"getblocktxn"
 
     def __init__(self):
@@ -1329,7 +1425,9 @@ def serialize(self):
     def __repr__(self):
         return "msg_getblocktxn(block_txn_request=%s)" % (repr(self.block_txn_request))
 
-class msg_blocktxn():
+
+class msg_blocktxn:
+    __slots__ = ("block_transactions",)
     command = b"blocktxn"
 
     def __init__(self):
@@ -1346,7 +1444,10 @@ def serialize(self):
     def __repr__(self):
         return "msg_blocktxn(block_transactions=%s)" % (repr(self.block_transactions))
 
+
 class msg_witness_blocktxn(msg_blocktxn):
+    __slots__ = ()
+
     def serialize(self):
         r = b""
         r += self.block_transactions.serialize(with_witness=True)
diff --git a/test/bitcoin_functional/functional/test_framework/mininode.py b/test/bitcoin_functional/functional/test_framework/mininode.py
index f8caa572505f3..388c123055587 100755
--- a/test/bitcoin_functional/functional/test_framework/mininode.py
+++ b/test/bitcoin_functional/functional/test_framework/mininode.py
@@ -21,7 +21,38 @@
 import sys
 import threading
 
-from test_framework.messages import CBlockHeader, MIN_VERSION_SUPPORTED, msg_addr, msg_block, MSG_BLOCK, msg_blocktxn, msg_cmpctblock, msg_feefilter, msg_getaddr, msg_getblocks, msg_getblocktxn, msg_getdata, msg_getheaders, msg_headers, msg_inv, msg_mempool, msg_ping, msg_pong, msg_reject, msg_sendcmpct, msg_sendheaders, msg_tx, MSG_TX, MSG_TYPE_MASK, msg_verack, msg_version, NODE_NETWORK, NODE_WITNESS, sha256
+from test_framework.messages import (
+    CBlockHeader,
+    MIN_VERSION_SUPPORTED,
+    msg_addr,
+    msg_block,
+    MSG_BLOCK,
+    msg_blocktxn,
+    msg_cmpctblock,
+    msg_feefilter,
+    msg_getaddr,
+    msg_getblocks,
+    msg_getblocktxn,
+    msg_getdata,
+    msg_getheaders,
+    msg_headers,
+    msg_inv,
+    msg_mempool,
+    msg_notfound,
+    msg_ping,
+    msg_pong,
+    msg_reject,
+    msg_sendcmpct,
+    msg_sendheaders,
+    msg_tx,
+    MSG_TX,
+    MSG_TYPE_MASK,
+    msg_verack,
+    msg_version,
+    NODE_NETWORK,
+    NODE_WITNESS,
+    sha256,
+)
 from test_framework.util import wait_until
 
 logger = logging.getLogger("TestFramework.mininode")
@@ -40,6 +71,7 @@
     b"headers": msg_headers,
     b"inv": msg_inv,
     b"mempool": msg_mempool,
+    b"notfound": msg_notfound,
     b"ping": msg_ping,
     b"pong": msg_pong,
     b"reject": msg_reject,
@@ -175,10 +207,13 @@ def send_message(self, message):
 
         This method takes a P2P payload, builds the P2P header and adds
         the message to the send buffer to be sent over the socket."""
+        tmsg = self.build_message(message)
+        self._log_message("send", message)
+        return self.send_raw_message(tmsg)
+
+    def send_raw_message(self, raw_message_bytes):
         if not self.is_connected:
             raise IOError('Not connected')
-        self._log_message("send", message)
-        tmsg = self._build_message(message)
 
         def maybe_write():
             if not self._transport:
@@ -188,12 +223,12 @@ def maybe_write():
             # Python 3.4 versions.
             if hasattr(self._transport, 'is_closing') and self._transport.is_closing():
                 return
-            self._transport.write(tmsg)
+            self._transport.write(raw_message_bytes)
         NetworkThread.network_event_loop.call_soon_threadsafe(maybe_write)
 
     # Class utility methods
 
-    def _build_message(self, message):
+    def build_message(self, message):
         """Build a serialized P2P message"""
         command = message.command
         data = message.serialize()
@@ -295,6 +330,7 @@ def on_getdata(self, message): pass
     def on_getheaders(self, message): pass
     def on_headers(self, message): pass
     def on_mempool(self, message): pass
+    def on_notfound(self, message): pass
     def on_pong(self, message): pass
     def on_reject(self, message): pass
     def on_sendcmpct(self, message): pass
@@ -313,7 +349,7 @@ def on_ping(self, message):
         self.send_message(msg_pong(message.nonce))
 
     def on_verack(self, message):
-        self.verack_received = True
+        pass
 
     def on_version(self, message):
         assert message.nVersion >= MIN_VERSION_SUPPORTED, "Version {} received. Test framework only supports versions greater than {}".format(message.nVersion, MIN_VERSION_SUPPORTED)
@@ -376,9 +412,9 @@ def wait_for_verack(self, timeout=60):
 
     # Message sending helper functions
 
-    def send_and_ping(self, message):
+    def send_and_ping(self, message, timeout=60):
         self.send_message(message)
-        self.sync_with_ping()
+        self.sync_with_ping(timeout=timeout)
 
     # Sync up with the node
     def sync_with_ping(self, timeout=60):
@@ -500,9 +536,9 @@ def send_blocks_and_test(self, blocks, node, *, success=True, request_block=True
                 wait_until(lambda: blocks[-1].sha256 in self.getdata_requests, timeout=timeout, lock=mininode_lock)
 
             if expect_disconnect:
-                self.wait_for_disconnect()
+                self.wait_for_disconnect(timeout=timeout)
             else:
-                self.sync_with_ping()
+                self.sync_with_ping(timeout=timeout)
 
             if success:
                 wait_until(lambda: node.getbestblockhash() == blocks[-1].hash, timeout=timeout)
diff --git a/test/bitcoin_functional/functional/test_framework/script.py b/test/bitcoin_functional/functional/test_framework/script.py
index 375d6334f73f3..2fe44010ba3c2 100644
--- a/test/bitcoin_functional/functional/test_framework/script.py
+++ b/test/bitcoin_functional/functional/test_framework/script.py
@@ -26,7 +26,7 @@ def hash160(s):
 _opcode_instances = []
 class CScriptOp(int):
     """A single script opcode"""
-    __slots__ = []
+    __slots__ = ()
 
     @staticmethod
     def encode_op_pushdata(d):
@@ -361,8 +361,11 @@ def __init__(self, msg, data):
         self.data = data
         super(CScriptTruncatedPushDataError, self).__init__(msg)
 
+
 # This is used, eg, for blockchain heights in coinbase scripts (bip34)
-class CScriptNum():
+class CScriptNum:
+    __slots__ = ("value",)
+
     def __init__(self, d=0):
         self.value = d
 
@@ -393,6 +396,8 @@ class CScript(bytes):
 
     iter(script) however does iterate by opcode.
     """
+    __slots__ = ()
+
     @classmethod
     def __coerce_instance(cls, other):
         # Coerce other into bytes
diff --git a/test/bitcoin_functional/functional/test_framework/socks5.py b/test/bitcoin_functional/functional/test_framework/socks5.py
index dd0f209268e0d..a21c864e7538a 100644
--- a/test/bitcoin_functional/functional/test_framework/socks5.py
+++ b/test/bitcoin_functional/functional/test_framework/socks5.py
@@ -54,10 +54,9 @@ def __repr__(self):
         return 'Socks5Command(%s,%s,%s,%s,%s,%s)' % (self.cmd, self.atyp, self.addr, self.port, self.username, self.password)
 
 class Socks5Connection():
-    def __init__(self, serv, conn, peer):
+    def __init__(self, serv, conn):
         self.serv = serv
         self.conn = conn
-        self.peer = peer
 
     def handle(self):
         """Handle socks5 request according to RFC192."""
@@ -137,9 +136,9 @@ def __init__(self, conf):
 
     def run(self):
         while self.running:
-            (sockconn, peer) = self.s.accept()
+            (sockconn, _) = self.s.accept()
             if self.running:
-                conn = Socks5Connection(self, sockconn, peer)
+                conn = Socks5Connection(self, sockconn)
                 thread = threading.Thread(None, conn.handle)
                 thread.daemon = True
                 thread.start()
diff --git a/test/bitcoin_functional/functional/test_framework/test_framework.py b/test/bitcoin_functional/functional/test_framework/test_framework.py
index 644673b31ff31..44fc185e6db11 100755
--- a/test/bitcoin_functional/functional/test_framework/test_framework.py
+++ b/test/bitcoin_functional/functional/test_framework/test_framework.py
@@ -89,7 +89,6 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
 
     def __init__(self):
         """Sets test framework defaults. Do not override this method. Instead, override the set_test_params() method"""
-        self.chain = 'regtest2'
         self.setup_clean_chain = False
         self.nodes = []
         self.network_thread = None
@@ -121,7 +120,7 @@ def main(self):
         parser.add_argument("--coveragedir", dest="coveragedir",
                             help="Write tested RPC commands into this directory")
         parser.add_argument("--configfile", dest="configfile",
-                            default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../../config.ini"),
+                            default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../config.ini"),
                             help="Location of the test framework config file (default: %(default)s)")
         parser.add_argument("--pdbonfailure", dest="pdbonfailure", default=False, action="store_true",
                             help="Attach a python debugger if test fails")
@@ -138,8 +137,8 @@ def main(self):
 
         config = configparser.ConfigParser()
         config.read_file(open(self.options.configfile))
-        self.options.bitcoind = os.getenv("BITCOIND", default=config["environment"]["BUILDDIR"] + '/src/elementsd' + config["environment"]["EXEEXT"])
-        self.options.bitcoincli = os.getenv("BITCOINCLI", default=config["environment"]["BUILDDIR"] + '/src/elements-cli' + config["environment"]["EXEEXT"])
+        self.options.bitcoind = os.getenv("BITCOIND", default=config["environment"]["BUILDDIR"] + '/src/bitcoind' + config["environment"]["EXEEXT"])
+        self.options.bitcoincli = os.getenv("BITCOINCLI", default=config["environment"]["BUILDDIR"] + '/src/bitcoin-cli' + config["environment"]["EXEEXT"])
 
         os.environ['PATH'] = os.pathsep.join([
             os.path.join(config['environment']['BUILDDIR'], 'src'),
@@ -162,12 +161,13 @@ def main(self):
         success = TestStatus.FAILED
 
         try:
-            if self.options.usecli and not self.supports_cli:
-                raise SkipTest("--usecli specified but test does not support using CLI")
+            if self.options.usecli:
+                if not self.supports_cli:
+                    raise SkipTest("--usecli specified but test does not support using CLI")
+                self.skip_if_no_cli()
             self.skip_test_if_missing_module()
             self.setup_chain()
             self.setup_network()
-            self.import_deterministic_coinbase_privkeys()
             self.run_test()
             success = TestStatus.PASSED
         except JSONRPCException as e:
@@ -260,11 +260,9 @@ def setup_nodes(self):
             extra_args = self.extra_args
         self.add_nodes(self.num_nodes, extra_args)
         self.start_nodes()
+        self.import_deterministic_coinbase_privkeys()
 
     def import_deterministic_coinbase_privkeys(self):
-        if self.setup_clean_chain:
-            return
-
         for n in self.nodes:
             try:
                 n.getwalletinfo()
@@ -272,7 +270,7 @@ def import_deterministic_coinbase_privkeys(self):
                 assert str(e).startswith('Method not found')
                 continue
 
-            n.importprivkey(n.get_deterministic_priv_key()[1])
+            n.importprivkey(privkey=n.get_deterministic_priv_key().key, label='coinbase')
 
     def run_test(self):
         """Tests must override this method to define test logic"""
@@ -294,7 +292,7 @@ def add_nodes(self, num_nodes, extra_args=None, *, rpchost=None, binary=None):
         assert_equal(len(extra_args), num_nodes)
         assert_equal(len(binary), num_nodes)
         for i in range(num_nodes):
-            self.nodes.append(TestNode(i, get_datadir_path(self.options.tmpdir, i), self.chain, rpchost=rpchost, timewait=self.rpc_timewait, bitcoind=binary[i], bitcoin_cli=self.options.bitcoincli, mocktime=self.mocktime, coverage_dir=self.options.coveragedir, extra_conf=extra_confs[i], extra_args=extra_args[i], use_cli=self.options.usecli))
+            self.nodes.append(TestNode(i, get_datadir_path(self.options.tmpdir, i), rpchost=rpchost, timewait=self.rpc_timewait, bitcoind=binary[i], bitcoin_cli=self.options.bitcoincli, mocktime=self.mocktime, coverage_dir=self.options.coveragedir, extra_conf=extra_confs[i], extra_args=extra_args[i], use_cli=self.options.usecli))
 
     def start_node(self, i, *args, **kwargs):
         """Start a bitcoind"""
@@ -441,11 +439,11 @@ def _initialize_chain(self):
 
             # Create cache directories, run bitcoinds:
             for i in range(MAX_NODES):
-                datadir = initialize_datadir(self.options.cachedir, i, self.chain)
+                datadir = initialize_datadir(self.options.cachedir, i)
                 args = [self.options.bitcoind, "-datadir=" + datadir, '-disablewallet']
                 if i > 0:
                     args.append("-connect=127.0.0.1:" + str(p2p_port(0)))
-                self.nodes.append(TestNode(i, get_datadir_path(self.options.cachedir, i), self.chain, extra_conf=["bind=127.0.0.1"], extra_args=[], rpchost=None, timewait=self.rpc_timewait, bitcoind=self.options.bitcoind, bitcoin_cli=self.options.bitcoincli, mocktime=self.mocktime, coverage_dir=None))
+                self.nodes.append(TestNode(i, get_datadir_path(self.options.cachedir, i), extra_conf=["bind=127.0.0.1"], extra_args=[], rpchost=None, timewait=self.rpc_timewait, bitcoind=self.options.bitcoind, bitcoin_cli=self.options.bitcoincli, mocktime=self.mocktime, coverage_dir=None))
                 self.nodes[i].args = args
                 self.start_node(i)
 
@@ -466,7 +464,7 @@ def _initialize_chain(self):
                 for peer in range(4):
                     for j in range(25):
                         set_node_times(self.nodes, block_time)
-                        self.nodes[peer].generatetoaddress(1, self.nodes[peer].get_deterministic_priv_key()[0])
+                        self.nodes[peer].generatetoaddress(1, self.nodes[peer].get_deterministic_priv_key().address)
                         block_time += 10 * 60
                     # Must sync before next peer starts generating blocks
                     sync_blocks(self.nodes)
@@ -477,7 +475,7 @@ def _initialize_chain(self):
             self.disable_mocktime()
 
             def cache_path(n, *paths):
-                return os.path.join(get_datadir_path(self.options.cachedir, n), self.chain, *paths)
+                return os.path.join(get_datadir_path(self.options.cachedir, n), "regtest", *paths)
 
             for i in range(MAX_NODES):
                 os.rmdir(cache_path(i, 'wallets'))  # Remove empty wallets dir
@@ -489,7 +487,7 @@ def cache_path(n, *paths):
             from_dir = get_datadir_path(self.options.cachedir, i)
             to_dir = get_datadir_path(self.options.tmpdir, i)
             shutil.copytree(from_dir, to_dir)
-            initialize_datadir(self.options.tmpdir, i, self.chain)  # Overwrite port/rpcport in bitcoin.conf
+            initialize_datadir(self.options.tmpdir, i)  # Overwrite port/rpcport in bitcoin.conf
 
     def _initialize_chain_clean(self):
         """Initialize empty blockchain for use by the test.
@@ -497,7 +495,7 @@ def _initialize_chain_clean(self):
         Create an empty blockchain and num_nodes wallets.
         Useful if a test case wants complete control over initialization."""
         for i in range(self.num_nodes):
-            initialize_datadir(self.options.tmpdir, i, self.chain)
+            initialize_datadir(self.options.tmpdir, i)
 
     def skip_if_no_py3_zmq(self):
         """Attempt to import the zmq package and skip the test if the import fails."""
@@ -526,7 +524,7 @@ def is_cli_compiled(self):
         config = configparser.ConfigParser()
         config.read_file(open(self.options.configfile))
 
-        return config["components"].getboolean("ENABLE_UTILS")
+        return config["components"].getboolean("ENABLE_CLI")
 
     def is_wallet_compiled(self):
         """Checks whether the wallet module was compiled."""
diff --git a/test/bitcoin_functional/functional/test_framework/test_node.py b/test/bitcoin_functional/functional/test_framework/test_node.py
index 445acddaefd27..9dcc0e6d0eacb 100755
--- a/test/bitcoin_functional/functional/test_framework/test_node.py
+++ b/test/bitcoin_functional/functional/test_framework/test_node.py
@@ -17,6 +17,7 @@
 import tempfile
 import time
 import urllib.parse
+import collections
 
 from .authproxy import JSONRPCException
 from .util import (
@@ -58,12 +59,11 @@ class TestNode():
     To make things easier for the test writer, any unrecognised messages will
     be dispatched to the RPC connection."""
 
-    def __init__(self, i, datadir, chain, *, rpchost, timewait, bitcoind, bitcoin_cli, mocktime, coverage_dir, extra_conf=None, extra_args=None, use_cli=False):
+    def __init__(self, i, datadir, *, rpchost, timewait, bitcoind, bitcoin_cli, mocktime, coverage_dir, extra_conf=None, extra_args=None, use_cli=False):
         self.index = i
         self.datadir = datadir
         self.stdout_dir = os.path.join(self.datadir, "stdout")
         self.stderr_dir = os.path.join(self.datadir, "stderr")
-        self.chain = chain
         self.rpchost = rpchost
         self.rpc_timeout = timewait
         self.binary = bitcoind
@@ -85,7 +85,7 @@ def __init__(self, i, datadir, chain, *, rpchost, timewait, bitcoind, bitcoin_cl
             "-uacomment=testnode%d" % i
         ]
 
-        self.cli = TestNodeCLI(bitcoin_cli, self.datadir, self.chain)
+        self.cli = TestNodeCLI(bitcoin_cli, self.datadir)
         self.use_cli = use_cli
 
         self.running = False
@@ -100,20 +100,40 @@ def __init__(self, i, datadir, chain, *, rpchost, timewait, bitcoind, bitcoin_cl
 
     def get_deterministic_priv_key(self):
         """Return a deterministic priv key in base58, that only depends on the node's index"""
+        AddressKeyPair = collections.namedtuple('AddressKeyPair', ['address', 'key'])
         PRIV_KEYS = [
             # address , privkey
-            ('mjTkW3DjgyZck4KbiRusZsqTgaYTxdSz6z', 'cVpF924EspNh8KjYsfhgY96mmxvT6DgdWiTYMtMjuM74hJaU5psW'),
-            ('msX6jQXvxiNhx3Q62PKeLPrhrqZQdSimTg', 'cUxsWyKyZ9MAQTaAhUQWJmBbSvHMwSmuv59KgxQV7oZQU3PXN3KE'),
-            ('mnonCMyH9TmAsSj3M59DsbH8H63U3RKoFP', 'cTrh7dkEAeJd6b3MRX9bZK8eRmNqVCMH3LSUkE3dSFDyzjU38QxK'),
-            ('mqJupas8Dt2uestQDvV2NH3RU8uZh2dqQR', 'cVuKKa7gbehEQvVq717hYcbE9Dqmq7KEBKqWgWrYBa2CKKrhtRim'),
-            ('msYac7Rvd5ywm6pEmkjyxhbCDKqWsVeYws', 'cQDCBuKcjanpXDpCqacNSjYfxeQj8G6CAtH1Dsk3cXyqLNC4RPuh'),
-            ('n2rnuUnwLgXqf9kk2kjvVm8R5BZK1yxQBi', 'cQakmfPSLSqKHyMFGwAqKHgWUiofJCagVGhiB4KCainaeCSxeyYq'),
-            ('myzuPxRwsf3vvGzEuzPfK9Nf2RfwauwYe6', 'cQMpDLJwA8DBe9NcQbdoSb1BhmFxVjWD5gRyrLZCtpuF9Zi3a9RK'),
-            ('mumwTaMtbxEPUswmLBBN3vM9oGRtGBrys8', 'cSXmRKXVcoouhNNVpcNKFfxsTsToY5pvB9DVsFksF1ENunTzRKsy'),
-            ('mpV7aGShMkJCZgbW7F6iZgrvuPHjZjH9qg', 'cSoXt6tm3pqy43UMabY6eUTmR3eSUYFtB2iNQDGgb3VUnRsQys2k'),
+            AddressKeyPair('mjTkW3DjgyZck4KbiRusZsqTgaYTxdSz6z', 'cVpF924EspNh8KjYsfhgY96mmxvT6DgdWiTYMtMjuM74hJaU5psW'),
+            AddressKeyPair('msX6jQXvxiNhx3Q62PKeLPrhrqZQdSimTg', 'cUxsWyKyZ9MAQTaAhUQWJmBbSvHMwSmuv59KgxQV7oZQU3PXN3KE'),
+            AddressKeyPair('mnonCMyH9TmAsSj3M59DsbH8H63U3RKoFP', 'cTrh7dkEAeJd6b3MRX9bZK8eRmNqVCMH3LSUkE3dSFDyzjU38QxK'),
+            AddressKeyPair('mqJupas8Dt2uestQDvV2NH3RU8uZh2dqQR', 'cVuKKa7gbehEQvVq717hYcbE9Dqmq7KEBKqWgWrYBa2CKKrhtRim'),
+            AddressKeyPair('msYac7Rvd5ywm6pEmkjyxhbCDKqWsVeYws', 'cQDCBuKcjanpXDpCqacNSjYfxeQj8G6CAtH1Dsk3cXyqLNC4RPuh'),
+            AddressKeyPair('n2rnuUnwLgXqf9kk2kjvVm8R5BZK1yxQBi', 'cQakmfPSLSqKHyMFGwAqKHgWUiofJCagVGhiB4KCainaeCSxeyYq'),
+            AddressKeyPair('myzuPxRwsf3vvGzEuzPfK9Nf2RfwauwYe6', 'cQMpDLJwA8DBe9NcQbdoSb1BhmFxVjWD5gRyrLZCtpuF9Zi3a9RK'),
+            AddressKeyPair('mumwTaMtbxEPUswmLBBN3vM9oGRtGBrys8', 'cSXmRKXVcoouhNNVpcNKFfxsTsToY5pvB9DVsFksF1ENunTzRKsy'),
+            AddressKeyPair('mpV7aGShMkJCZgbW7F6iZgrvuPHjZjH9qg', 'cSoXt6tm3pqy43UMabY6eUTmR3eSUYFtB2iNQDGgb3VUnRsQys2k'),
         ]
         return PRIV_KEYS[self.index]
 
+    def get_mem_rss(self):
+        """Get the memory usage (RSS) per `ps`.
+
+        Returns None if `ps` is unavailable.
+        """
+        assert self.running
+
+        try:
+            return int(subprocess.check_output(
+                ["ps", "h", "-o", "rss", "{}".format(self.process.pid)],
+                stderr=subprocess.DEVNULL).split()[-1])
+
+        # Avoid failing on platforms where ps isn't installed.
+        #
+        # We could later use something like `psutils` to work across platforms.
+        except (FileNotFoundError, subprocess.SubprocessError):
+            self.log.exception("Unable to get memory usage")
+            return None
+
     def _node_msg(self, msg: str) -> str:
         """Return a modified msg that identifies this node by its index as a debugging aid."""
         return "[node %d] %s" % (self.index, msg)
@@ -156,7 +176,7 @@ def start(self, extra_args=None, *, stdout=None, stderr=None, **kwargs):
         # Delete any existing cookie file -- if such a file exists (eg due to
         # unclean shutdown), it will get overwritten anyway by bitcoind, and
         # potentially interfere with our attempt to authenticate
-        delete_cookie_file(self.datadir, self.chain)
+        delete_cookie_file(self.datadir)
 
         # add environment variable LIBC_FATAL_STDERR_=1 so that libc errors are written to stderr and not the terminal
         subp_env = dict(os.environ, LIBC_FATAL_STDERR_="1")
@@ -175,7 +195,7 @@ def wait_for_rpc_connection(self):
                 raise FailedToStartError(self._node_msg(
                     'bitcoind exited with status {} during initialization'.format(self.process.returncode)))
             try:
-                self.rpc = get_rpc_proxy(rpc_url(self.datadir, self.index, self.chain, self.rpchost), self.index, timeout=self.rpc_timeout, coveragedir=self.coverage_dir)
+                self.rpc = get_rpc_proxy(rpc_url(self.datadir, self.index, self.rpchost), self.index, timeout=self.rpc_timeout, coveragedir=self.coverage_dir)
                 self.rpc.getblockcount()
                 # If the call to getblockcount() succeeds then the RPC connection is up
                 self.rpc_connected = True
@@ -186,7 +206,9 @@ def wait_for_rpc_connection(self):
                 if e.errno != errno.ECONNREFUSED:  # Port not yet open?
                     raise  # unknown IO error
             except JSONRPCException as e:  # Initialization phase
-                if e.error['code'] != -28:  # RPC in warmup?
+                # -28 RPC in warmup
+                # -342 Service unavailable, RPC server started but is shutting down due to error
+                if e.error['code'] != -28 and e.error['code'] != -342:
                     raise  # unknown JSON RPC exception
             except ValueError as e:  # cookie file not found and no rpcuser or rpcassword. bitcoind still starting
                 if "No RPC credentials" not in str(e):
@@ -194,6 +216,10 @@ def wait_for_rpc_connection(self):
             time.sleep(1.0 / poll_per_s)
         self._raise_assertion_error("Unable to connect to bitcoind")
 
+    def generate(self, nblocks, maxtries=1000000):
+        self.log.debug("TestNode.generate() dispatches `generate` call to `generatetoaddress`")
+        return self.generatetoaddress(nblocks=nblocks, address=self.get_deterministic_priv_key().address, maxtries=maxtries)
+
     def get_wallet_rpc(self, wallet_name):
         if self.use_cli:
             return self.cli("-rpcwallet={}".format(wallet_name))
@@ -249,7 +275,7 @@ def wait_until_stopped(self, timeout=BITCOIND_PROC_WAIT_TIMEOUT):
 
     @contextlib.contextmanager
     def assert_debug_log(self, expected_msgs):
-        debug_log = os.path.join(self.datadir, self.chain, 'debug.log')
+        debug_log = os.path.join(self.datadir, 'regtest', 'debug.log')
         with open(debug_log, encoding='utf-8') as dl:
             dl.seek(0, 2)
             prev_size = dl.tell()
@@ -264,6 +290,29 @@ def assert_debug_log(self, expected_msgs):
                 if re.search(re.escape(expected_msg), log, flags=re.MULTILINE) is None:
                     self._raise_assertion_error('Expected message "{}" does not partially match log:\n\n{}\n\n'.format(expected_msg, print_log))
 
+    @contextlib.contextmanager
+    def assert_memory_usage_stable(self, perc_increase_allowed=0.03):
+        """Context manager that allows the user to assert that a node's memory usage (RSS)
+        hasn't increased beyond some threshold percentage.
+        """
+        before_memory_usage = self.get_mem_rss()
+
+        yield
+
+        after_memory_usage = self.get_mem_rss()
+
+        if not (before_memory_usage and after_memory_usage):
+            self.log.warning("Unable to detect memory usage (RSS) - skipping memory check.")
+            return
+
+        perc_increase_memory_usage = (after_memory_usage / before_memory_usage) - 1
+
+        if perc_increase_memory_usage > perc_increase_allowed:
+            self._raise_assertion_error(
+                "Memory usage increased over threshold of {:.3f}% from {} to {} ({:.3f}%)".format(
+                    perc_increase_allowed * 100, before_memory_usage, after_memory_usage,
+                    perc_increase_memory_usage * 100))
+
     def assert_start_raises_init_error(self, extra_args=None, expected_msg=None, match=ErrorMatch.FULL_TEXT, *args, **kwargs):
         """Attempt to start the node and expect it to raise an error.
 
@@ -352,17 +401,16 @@ def get_request(self, *args, **kwargs):
 class TestNodeCLI():
     """Interface to bitcoin-cli for an individual node"""
 
-    def __init__(self, binary, datadir, chain):
+    def __init__(self, binary, datadir):
         self.options = []
         self.binary = binary
         self.datadir = datadir
-        self.chain = chain
         self.input = None
         self.log = logging.getLogger('TestFramework.bitcoincli')
 
     def __call__(self, *options, input=None):
         # TestNodeCLI is callable with bitcoin-cli command-line options
-        cli = TestNodeCLI(self.binary, self.datadir, self.chain)
+        cli = TestNodeCLI(self.binary, self.datadir)
         cli.options = [str(o) for o in options]
         cli.input = input
         return cli
@@ -384,7 +432,7 @@ def send_cli(self, command=None, *args, **kwargs):
         pos_args = [str(arg).lower() if type(arg) is bool else str(arg) for arg in args]
         named_args = [str(key) + "=" + str(value) for (key, value) in kwargs.items()]
         assert not (pos_args and named_args), "Cannot use positional arguments and named arguments in the same bitcoin-cli call"
-        p_args = [self.binary, "-datadir=" + self.datadir, "-chain=" + self.chain] + self.options
+        p_args = [self.binary, "-datadir=" + self.datadir] + self.options
         if named_args:
             p_args += ["-named"]
         if command is not None:
diff --git a/test/bitcoin_functional/functional/test_framework/util.py b/test/bitcoin_functional/functional/test_framework/util.py
index 46e8b9de0034b..b355816d8bc22 100644
--- a/test/bitcoin_functional/functional/test_framework/util.py
+++ b/test/bitcoin_functional/functional/test_framework/util.py
@@ -273,8 +273,8 @@ def p2p_port(n):
 def rpc_port(n):
     return PORT_MIN + PORT_RANGE + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES)
 
-def rpc_url(datadir, i, chain, rpchost=None):
-    rpc_u, rpc_p = get_auth_cookie(datadir, chain)
+def rpc_url(datadir, i, rpchost=None):
+    rpc_u, rpc_p = get_auth_cookie(datadir)
     host = '127.0.0.1'
     port = rpc_port(i)
     if rpchost:
@@ -288,13 +288,13 @@ def rpc_url(datadir, i, chain, rpchost=None):
 # Node functions
 ################
 
-def initialize_datadir(dirname, n, chain):
+def initialize_datadir(dirname, n):
     datadir = get_datadir_path(dirname, n)
     if not os.path.isdir(datadir):
         os.makedirs(datadir)
-    with open(os.path.join(datadir, "elements.conf"), 'w', encoding='utf8') as f:
-        f.write("chain=%s\n" % chain)
-        f.write("[%s]\n" % chain)
+    with open(os.path.join(datadir, "bitcoin.conf"), 'w', encoding='utf8') as f:
+        f.write("regtest=1\n")
+        f.write("[regtest]\n")
         f.write("port=" + str(p2p_port(n)) + "\n")
         f.write("rpcport=" + str(rpc_port(n)) + "\n")
         f.write("server=1\n")
@@ -302,26 +302,6 @@ def initialize_datadir(dirname, n, chain):
         f.write("discover=0\n")
         f.write("listenonion=0\n")
         f.write("printtoconsole=0\n")
-        # Elements:
-        f.write("con_blocksubsidy=5000000000\n")
-        f.write("con_connect_coinbase=0\n")
-        f.write("con_has_parent_chain=0\n")
-        f.write("parentgenesisblockhash=0\n")
-        f.write("anyonecanspendaremine=0\n")
-        f.write("con_blockheightinheader=0\n")
-        f.write("con_elementsmode=0\n")
-        f.write("con_signed_blocks=0\n")
-        f.write("multi_data_permitted=0\n")
-        f.write("walletrbf=0\n") # Default is 1 in Elements
-        f.write("con_bip34height=100000000\n")
-        f.write("con_bip65height=1351\n")
-        f.write("con_bip66height=1251\n")
-        f.write("con_genesis_style=bitcoin\n")
-        f.write("con_csv_deploy_start=0\n") # Default is -1 (always active)
-        f.write("blindedaddresses=0\n")
-        f.write("pubkeyprefix=111\n")
-        f.write("scriptprefix=196\n")
-        f.write("bech32_hrp=bcrt\n")
         os.makedirs(os.path.join(datadir, 'stderr'), exist_ok=True)
         os.makedirs(os.path.join(datadir, 'stdout'), exist_ok=True)
     return datadir
@@ -330,15 +310,15 @@ def get_datadir_path(dirname, n):
     return os.path.join(dirname, "node" + str(n))
 
 def append_config(datadir, options):
-    with open(os.path.join(datadir, "elements.conf"), 'a', encoding='utf8') as f:
+    with open(os.path.join(datadir, "bitcoin.conf"), 'a', encoding='utf8') as f:
         for option in options:
             f.write(option + "\n")
 
-def get_auth_cookie(datadir, chain):
+def get_auth_cookie(datadir):
     user = None
     password = None
-    if os.path.isfile(os.path.join(datadir, "elements.conf")):
-        with open(os.path.join(datadir, "elements.conf"), 'r', encoding='utf8') as f:
+    if os.path.isfile(os.path.join(datadir, "bitcoin.conf")):
+        with open(os.path.join(datadir, "bitcoin.conf"), 'r', encoding='utf8') as f:
             for line in f:
                 if line.startswith("rpcuser="):
                     assert user is None  # Ensure that there is only one rpcuser line
@@ -346,8 +326,8 @@ def get_auth_cookie(datadir, chain):
                 if line.startswith("rpcpassword="):
                     assert password is None  # Ensure that there is only one rpcpassword line
                     password = line.split("=")[1].strip("\n")
-    if os.path.isfile(os.path.join(datadir, chain, ".cookie")):
-        with open(os.path.join(datadir, chain, ".cookie"), 'r', encoding="ascii") as f:
+    if os.path.isfile(os.path.join(datadir, "regtest", ".cookie")):
+        with open(os.path.join(datadir, "regtest", ".cookie"), 'r', encoding="ascii") as f:
             userpass = f.read()
             split_userpass = userpass.split(':')
             user = split_userpass[0]
@@ -357,10 +337,10 @@ def get_auth_cookie(datadir, chain):
     return user, password
 
 # If a cookie file exists in the given datadir, delete it.
-def delete_cookie_file(datadir, chain):
-    if os.path.isfile(os.path.join(datadir, chain, ".cookie")):
+def delete_cookie_file(datadir):
+    if os.path.isfile(os.path.join(datadir, "regtest", ".cookie")):
         logger.debug("Deleting leftover cookie file")
-        os.remove(os.path.join(datadir, chain, ".cookie"))
+        os.remove(os.path.join(datadir, "regtest", ".cookie"))
 
 def get_bip9_status(node, key):
     info = node.getblockchaininfo()
diff --git a/test/bitcoin_functional/functional/test_runner.py b/test/bitcoin_functional/functional/test_runner.py
index 3ed1a405dda25..5541b446901c7 100755
--- a/test/bitcoin_functional/functional/test_runner.py
+++ b/test/bitcoin_functional/functional/test_runner.py
@@ -29,7 +29,7 @@
 import logging
 
 # Formatting. Default colors to empty strings.
-BOLD, BLUE, RED, GREY = ("", ""), ("", ""), ("", ""), ("", "")
+BOLD, GREEN, RED, GREY = ("", ""), ("", ""), ("", ""), ("", "")
 try:
     # Make sure python thinks it can write unicode to its stdout
     "\u2713".encode("utf_8").decode(sys.stdout.encoding)
@@ -41,20 +41,33 @@
     CROSS = "x "
     CIRCLE = "o "
 
-if os.name == 'posix':
+if os.name != 'nt' or sys.getwindowsversion() >= (10, 0, 14393):
+    if os.name == 'nt':
+        import ctypes
+        kernel32 = ctypes.windll.kernel32
+        ENABLE_VIRTUAL_TERMINAL_PROCESSING = 4
+        STD_OUTPUT_HANDLE = -11
+        STD_ERROR_HANDLE = -12
+        # Enable ascii color control to stdout
+        stdout = kernel32.GetStdHandle(STD_OUTPUT_HANDLE)
+        stdout_mode = ctypes.c_int32()
+        kernel32.GetConsoleMode(stdout, ctypes.byref(stdout_mode))
+        kernel32.SetConsoleMode(stdout, stdout_mode.value | ENABLE_VIRTUAL_TERMINAL_PROCESSING)
+        # Enable ascii color control to stderr
+        stderr = kernel32.GetStdHandle(STD_ERROR_HANDLE)
+        stderr_mode = ctypes.c_int32()
+        kernel32.GetConsoleMode(stderr, ctypes.byref(stderr_mode))
+        kernel32.SetConsoleMode(stderr, stderr_mode.value | ENABLE_VIRTUAL_TERMINAL_PROCESSING)
     # primitive formatting on supported
     # terminal via ANSI escape sequences:
     BOLD = ('\033[0m', '\033[1m')
-    BLUE = ('\033[0m', '\033[0;34m')
+    GREEN = ('\033[0m', '\033[0;32m')
     RED = ('\033[0m', '\033[0;31m')
     GREY = ('\033[0m', '\033[1;30m')
 
 TEST_EXIT_PASSED = 0
 TEST_EXIT_SKIPPED = 77
 
-# 20 minutes represented in seconds
-TRAVIS_TIMEOUT_DURATION = 20 * 60
-
 BASE_SCRIPTS = [
     # Scripts that are run by the travis build process.
     # Longest test should go first, to favor running tests in parallel
@@ -92,8 +105,7 @@
     # vv Tests less than 30s vv
     'wallet_keypool_topup.py',
     'interface_zmq.py',
-    # ELEMENTS:
-    #'interface_bitcoin_cli.py',
+    'interface_bitcoin_cli.py',
     'mempool_resurrect.py',
     'wallet_txn_doublespend.py --mineblock',
     'wallet_txn_clone.py',
@@ -109,8 +121,7 @@
     'wallet_disableprivatekeys.py --usecli',
     'interface_http.py',
     'rpc_psbt.py',
-    # ELEMENTS:
-    #'rpc_users.py',
+    'rpc_users.py',
     'feature_proxy.py',
     'rpc_signrawtransaction.py',
     'wallet_groups.py',
@@ -125,6 +136,7 @@
     'mining_prioritisetransaction.py',
     'p2p_invalid_locator.py',
     'p2p_invalid_block.py',
+    'p2p_invalid_messages.py',
     'p2p_invalid_tx.py',
     'feature_assumevalid.py',
     'example_test.py',
@@ -138,11 +150,12 @@
     'feature_versionbits_warning.py',
     'rpc_preciousblock.py',
     'wallet_importprunedfunds.py',
-    'rpc_zmq.py',
+    'p2p_leak_tx.py',
     'rpc_signmessage.py',
     'feature_nulldummy.py',
     'mempool_accept.py',
     'wallet_import_rescan.py',
+    'wallet_import_with_label.py',
     'rpc_bind.py --ipv4',
     'rpc_bind.py --ipv6',
     'rpc_bind.py --nonloopback',
@@ -161,15 +174,14 @@
     'rpc_getblockstats.py',
     'p2p_fingerprint.py',
     'feature_uacomment.py',
+    'feature_filelock.py',
     'p2p_unrequested_blocks.py',
-    # ELEMENTS:
-    #'feature_includeconf.py',
+    'feature_includeconf.py',
     'rpc_scantxoutset.py',
     'feature_logging.py',
     'p2p_node_network_limited.py',
     'feature_blocksdir.py',
-    # ELEMENTS:
-    #'feature_config_args.py',
+    'feature_config_args.py',
     'rpc_help.py',
     'feature_help.py',
     # Don't append tests at the end to avoid merge conflicts
@@ -201,15 +213,16 @@ def main():
                                      epilog='''
     Help text and arguments for individual test script:''',
                                      formatter_class=argparse.RawTextHelpFormatter)
-    parser.add_argument('--combinedlogslen', '-c', type=int, default=0, help='print a combined log (of length n lines) from all test nodes and test framework to the console on failure.')
+    parser.add_argument('--combinedlogslen', '-c', type=int, default=0, metavar='n', help='On failure, print a log (of length n lines) to the console, combined from the test framework and all test nodes.')
     parser.add_argument('--coverage', action='store_true', help='generate a basic coverage report for the RPC interface')
+    parser.add_argument('--ci', action='store_true', help='Run checks and code that are usually only enabled in a continuous integration environment')
     parser.add_argument('--exclude', '-x', help='specify a comma-separated-list of scripts to exclude.')
     parser.add_argument('--extended', action='store_true', help='run the extended test suite in addition to the basic tests')
     parser.add_argument('--force', '-f', action='store_true', help='run tests even on platforms where they are disabled by default (e.g. windows).')
     parser.add_argument('--help', '-h', '-?', action='store_true', help='print help text and exit')
     parser.add_argument('--jobs', '-j', type=int, default=4, help='how many test scripts to run in parallel. Default=4.')
     parser.add_argument('--keepcache', '-k', action='store_true', help='the default behavior is to flush the cache directory on startup. --keepcache retains the cache from the previous testrun.')
-    parser.add_argument('--quiet', '-q', action='store_true', help='only print results summary and failure logs')
+    parser.add_argument('--quiet', '-q', action='store_true', help='only print dots, results summary and failure logs')
     parser.add_argument('--tmpdirprefix', '-t', default=tempfile.gettempdir(), help="Root directory for datadirs")
     parser.add_argument('--failfast', action='store_true', help='stop execution after the first test failure')
     args, unknown_args = parser.parse_known_args()
@@ -220,7 +233,7 @@ def main():
 
     # Read config generated by configure.
     config = configparser.ConfigParser()
-    configfile = os.path.abspath(os.path.dirname(__file__)) + "/../../config.ini"
+    configfile = os.path.abspath(os.path.dirname(__file__)) + "/../config.ini"
     config.read_file(open(configfile, encoding="utf8"))
 
     passon_args.append("--configfile=%s" % configfile)
@@ -231,6 +244,11 @@ def main():
 
     # Create base test directory
     tmpdir = "%s/test_runner_₿_🏃_%s" % (args.tmpdirprefix, datetime.datetime.now().strftime("%Y%m%d_%H%M%S"))
+
+    # If we fixed the command-line and filename encoding issue on Windows, these two lines could be removed
+    if config["environment"]["EXEEXT"] == ".exe":
+        tmpdir = "%s/test_runner_%s" % (args.tmpdirprefix, datetime.datetime.now().strftime("%Y%m%d_%H%M%S"))
+
     os.makedirs(tmpdir)
 
     logging.debug("Temporary test directory at %s" % tmpdir)
@@ -268,11 +286,13 @@ def main():
 
     # Remove the test cases that the user has explicitly asked to exclude.
     if args.exclude:
-        exclude_tests = [re.sub("\.py$", "", test) + ".py" for test in args.exclude.split(',')]
+        exclude_tests = [test.split('.py')[0] for test in args.exclude.split(',')]
         for exclude_test in exclude_tests:
-            if exclude_test in test_list:
-                test_list.remove(exclude_test)
-            else:
+            # Remove <test_name>.py and <test_name>.py --arg from the test list
+            exclude_list = [test for test in test_list if test.split('.py')[0] == exclude_test]
+            for exclude_item in exclude_list:
+                test_list.remove(exclude_item)
+            if not exclude_list:
                 print("{}WARNING!{} Test '{}' not found in current test list.".format(BOLD[1], BOLD[0], exclude_test))
 
     if not test_list:
@@ -283,28 +303,29 @@ def main():
     if args.help:
         # Print help for test_runner.py, then print help of the first script (with args removed) and exit.
         parser.print_help()
-        subprocess.check_call([sys.executable, os.path.join(config["environment"]["SRCDIR"], 'test', 'bitcoin_functional', 'functional', test_list[0].split()[0]), '-h'])
+        subprocess.check_call([sys.executable, os.path.join(config["environment"]["SRCDIR"], 'test', 'functional', test_list[0].split()[0]), '-h'])
         sys.exit(0)
 
-    check_script_list(config["environment"]["SRCDIR"])
+    check_script_list(src_dir=config["environment"]["SRCDIR"], fail_on_warn=args.ci)
     check_script_prefixes()
 
     if not args.keepcache:
         shutil.rmtree("%s/test/cache" % config["environment"]["BUILDDIR"], ignore_errors=True)
 
     run_tests(
-        test_list,
-        config["environment"]["SRCDIR"],
-        config["environment"]["BUILDDIR"],
-        tmpdir,
+        test_list=test_list,
+        src_dir=config["environment"]["SRCDIR"],
+        build_dir=config["environment"]["BUILDDIR"],
+        tmpdir=tmpdir,
         jobs=args.jobs,
         enable_coverage=args.coverage,
         args=passon_args,
         combined_logs_len=args.combinedlogslen,
         failfast=args.failfast,
+        runs_ci=args.ci,
     )
 
-def run_tests(test_list, src_dir, build_dir, tmpdir, jobs=1, enable_coverage=False, args=None, combined_logs_len=0, failfast=False):
+def run_tests(*, test_list, src_dir, build_dir, tmpdir, jobs=1, enable_coverage=False, args=None, combined_logs_len=0, failfast=False, runs_ci):
     args = args or []
 
     # Warn if bitcoind is already running (unix only)
@@ -319,7 +340,7 @@ def run_tests(test_list, src_dir, build_dir, tmpdir, jobs=1, enable_coverage=Fal
     if os.path.isdir(cache_dir):
         print("%sWARNING!%s There is a cache directory here: %s. If tests fail unexpectedly, try deleting the cache directory." % (BOLD[1], BOLD[0], cache_dir))
 
-    tests_dir = src_dir + '/test/bitcoin_functional/functional/'
+    tests_dir = src_dir + '/test/functional/'
 
     flags = ['--cachedir={}'.format(cache_dir)] + args
 
@@ -339,22 +360,29 @@ def run_tests(test_list, src_dir, build_dir, tmpdir, jobs=1, enable_coverage=Fal
             raise
 
     #Run Tests
-    job_queue = TestHandler(jobs, tests_dir, tmpdir, test_list, flags)
+    job_queue = TestHandler(
+        num_tests_parallel=jobs,
+        tests_dir=tests_dir,
+        tmpdir=tmpdir,
+        test_list=test_list,
+        flags=flags,
+        timeout_duration=40 * 60 if runs_ci else float('inf'),  # in seconds
+    )
     start_time = time.time()
     test_results = []
 
     max_len_name = len(max(test_list, key=len))
-
-    for _ in range(len(test_list)):
+    test_count = len(test_list)
+    for i in range(test_count):
         test_result, testdir, stdout, stderr = job_queue.get_next()
         test_results.append(test_result)
-
+        done_str = "{}/{} - {}{}{}".format(i + 1, test_count, BOLD[1], test_result.name, BOLD[0])
         if test_result.status == "Passed":
-            logging.debug("\n%s%s%s passed, Duration: %s s" % (BOLD[1], test_result.name, BOLD[0], test_result.time))
+            logging.debug("%s passed, Duration: %s s" % (done_str, test_result.time))
         elif test_result.status == "Skipped":
-            logging.debug("\n%s%s%s skipped" % (BOLD[1], test_result.name, BOLD[0]))
+            logging.debug("%s skipped" % (done_str))
         else:
-            print("\n%s%s%s failed, Duration: %s s\n" % (BOLD[1], test_result.name, BOLD[0], test_result.time))
+            print("%s failed, Duration: %s s\n" % (done_str, test_result.time))
             print(BOLD[1] + 'stdout:\n' + BOLD[0] + stdout + '\n')
             print(BOLD[1] + 'stderr:\n' + BOLD[0] + stderr + '\n')
             if combined_logs_len and os.path.isdir(testdir):
@@ -363,7 +391,10 @@ def run_tests(test_list, src_dir, build_dir, tmpdir, jobs=1, enable_coverage=Fal
                 print('\n============')
                 print('{}Combined log for {}:{}'.format(BOLD[1], testdir, BOLD[0]))
                 print('============\n')
-                combined_logs, _ = subprocess.Popen([sys.executable, os.path.join(tests_dir, 'combine_logs.py'), '-c', testdir], universal_newlines=True, stdout=subprocess.PIPE).communicate()
+                combined_logs_args = [sys.executable, os.path.join(tests_dir, 'combine_logs.py'), testdir]
+                if BOLD[0]:
+                    combined_logs_args += ['--color']
+                combined_logs, _ = subprocess.Popen(combined_logs_args, universal_newlines=True, stdout=subprocess.PIPE).communicate()
                 print("\n".join(deque(combined_logs.splitlines(), combined_logs_len)))
 
             if failfast:
@@ -417,11 +448,12 @@ class TestHandler:
     Trigger the test scripts passed in via the list.
     """
 
-    def __init__(self, num_tests_parallel, tests_dir, tmpdir, test_list=None, flags=None):
-        assert(num_tests_parallel >= 1)
+    def __init__(self, *, num_tests_parallel, tests_dir, tmpdir, test_list, flags, timeout_duration):
+        assert num_tests_parallel >= 1
         self.num_jobs = num_tests_parallel
         self.tests_dir = tests_dir
         self.tmpdir = tmpdir
+        self.timeout_duration = timeout_duration
         self.test_list = test_list
         self.flags = flags
         self.num_running = 0
@@ -450,12 +482,13 @@ def get_next(self):
                               log_stderr))
         if not self.jobs:
             raise IndexError('pop from empty list')
+        dot_count = 0
         while True:
             # Return first proc that finishes
             time.sleep(.5)
             for job in self.jobs:
                 (name, start_time, proc, testdir, log_out, log_err) = job
-                if os.getenv('TRAVIS') == 'true' and int(time.time() - start_time) > TRAVIS_TIMEOUT_DURATION:
+                if int(time.time() - start_time) > self.timeout_duration:
                     # In travis, timeout individual tests (to stop tests hanging and not providing useful output).
                     proc.send_signal(signal.SIGINT)
                 if proc.poll() is not None:
@@ -470,9 +503,12 @@ def get_next(self):
                         status = "Failed"
                     self.num_running -= 1
                     self.jobs.remove(job)
-
+                    clearline = '\r' + (' ' * dot_count) + '\r'
+                    print(clearline, end='', flush=True)
+                    dot_count = 0
                     return TestResult(name, status, int(time.time() - start_time)), testdir, stdout, stderr
             print('.', end='', flush=True)
+            dot_count += 1
 
     def kill_and_join(self):
         """Send SIGKILL to all jobs and block until all have ended."""
@@ -502,7 +538,7 @@ def sort_key(self):
 
     def __repr__(self):
         if self.status == "Passed":
-            color = BLUE
+            color = GREEN
             glyph = TICK
         elif self.status == "Failed":
             color = RED
@@ -530,20 +566,21 @@ def check_script_prefixes():
         raise AssertionError("Some tests are not following naming convention!")
 
 
-def check_script_list(src_dir):
+def check_script_list(*, src_dir, fail_on_warn):
     """Check scripts directory.
 
     Check that there are no scripts in the functional tests directory which are
     not being run by pull-tester.py."""
-    script_dir = src_dir + '/test/bitcoin_functional/functional/'
+    script_dir = src_dir + '/test/functional/'
     python_files = set([test_file for test_file in os.listdir(script_dir) if test_file.endswith(".py")])
     missed_tests = list(python_files - set(map(lambda x: x.split()[0], ALL_SCRIPTS + NON_SCRIPTS)))
     if len(missed_tests) != 0:
         print("%sWARNING!%s The following scripts are not being run: %s. Check the test lists in test_runner.py." % (BOLD[1], BOLD[0], str(missed_tests)))
-        if os.getenv('TRAVIS') == 'true':
+        if fail_on_warn:
             # On travis this warning is an error to prevent merging incomplete commits into master
             sys.exit(1)
 
+
 class RPCCoverage():
     """
     Coverage reporting utilities for test_runner.
@@ -599,7 +636,7 @@ def _get_uncovered_rpc_commands(self):
         with open(coverage_ref_filename, 'r', encoding="utf8") as coverage_ref_file:
             all_cmds.update([line.strip() for line in coverage_ref_file.readlines()])
 
-        for root, dirs, files in os.walk(self.dir):
+        for root, _, files in os.walk(self.dir):
             for filename in files:
                 if filename.startswith(coverage_file_prefix):
                     coverage_filenames.add(os.path.join(root, filename))
diff --git a/test/bitcoin_functional/functional/wallet_backup.py b/test/bitcoin_functional/functional/wallet_backup.py
index eace06e538949..32ec385fa1264 100755
--- a/test/bitcoin_functional/functional/wallet_backup.py
+++ b/test/bitcoin_functional/functional/wallet_backup.py
@@ -95,9 +95,9 @@ def stop_three(self):
         self.stop_node(2)
 
     def erase_three(self):
-        os.remove(os.path.join(self.nodes[0].datadir, 'regtest2', 'wallets', 'wallet.dat'))
-        os.remove(os.path.join(self.nodes[1].datadir, 'regtest2', 'wallets', 'wallet.dat'))
-        os.remove(os.path.join(self.nodes[2].datadir, 'regtest2', 'wallets', 'wallet.dat'))
+        os.remove(os.path.join(self.nodes[0].datadir, 'regtest', 'wallets', 'wallet.dat'))
+        os.remove(os.path.join(self.nodes[1].datadir, 'regtest', 'wallets', 'wallet.dat'))
+        os.remove(os.path.join(self.nodes[2].datadir, 'regtest', 'wallets', 'wallet.dat'))
 
     def run_test(self):
         self.log.info("Generating initial blockchain")
@@ -155,13 +155,13 @@ def run_test(self):
         self.erase_three()
 
         # Start node2 with no chain
-        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest2', 'blocks'))
-        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest2', 'chainstate'))
+        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest', 'blocks'))
+        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest', 'chainstate'))
 
         # Restore wallets from backup
-        shutil.copyfile(os.path.join(self.nodes[0].datadir, 'wallet.bak'), os.path.join(self.nodes[0].datadir, 'regtest2', 'wallets', 'wallet.dat'))
-        shutil.copyfile(os.path.join(self.nodes[1].datadir, 'wallet.bak'), os.path.join(self.nodes[1].datadir, 'regtest2', 'wallets', 'wallet.dat'))
-        shutil.copyfile(os.path.join(self.nodes[2].datadir, 'wallet.bak'), os.path.join(self.nodes[2].datadir, 'regtest2', 'wallets', 'wallet.dat'))
+        shutil.copyfile(os.path.join(self.nodes[0].datadir, 'wallet.bak'), os.path.join(self.nodes[0].datadir, 'regtest', 'wallets', 'wallet.dat'))
+        shutil.copyfile(os.path.join(self.nodes[1].datadir, 'wallet.bak'), os.path.join(self.nodes[1].datadir, 'regtest', 'wallets', 'wallet.dat'))
+        shutil.copyfile(os.path.join(self.nodes[2].datadir, 'wallet.bak'), os.path.join(self.nodes[2].datadir, 'regtest', 'wallets', 'wallet.dat'))
 
         self.log.info("Re-starting nodes")
         self.start_three()
@@ -176,8 +176,8 @@ def run_test(self):
         self.erase_three()
 
         #start node2 with no chain
-        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest2', 'blocks'))
-        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest2', 'chainstate'))
+        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest', 'blocks'))
+        shutil.rmtree(os.path.join(self.nodes[2].datadir, 'regtest', 'chainstate'))
 
         self.start_three()
 
@@ -197,10 +197,10 @@ def run_test(self):
 
         # Backup to source wallet file must fail
         sourcePaths = [
-            os.path.join(self.nodes[0].datadir, 'regtest2', 'wallets', 'wallet.dat'),
-            os.path.join(self.nodes[0].datadir, 'regtest2', '.', 'wallets', 'wallet.dat'),
-            os.path.join(self.nodes[0].datadir, 'regtest2', 'wallets', ''),
-            os.path.join(self.nodes[0].datadir, 'regtest2', 'wallets')]
+            os.path.join(self.nodes[0].datadir, 'regtest', 'wallets', 'wallet.dat'),
+            os.path.join(self.nodes[0].datadir, 'regtest', '.', 'wallets', 'wallet.dat'),
+            os.path.join(self.nodes[0].datadir, 'regtest', 'wallets', ''),
+            os.path.join(self.nodes[0].datadir, 'regtest', 'wallets')]
 
         for sourcePath in sourcePaths:
             assert_raises_rpc_error(-4, "backup failed", self.nodes[0].backupwallet, sourcePath)
diff --git a/test/bitcoin_functional/functional/wallet_basic.py b/test/bitcoin_functional/functional/wallet_basic.py
index 4079d054914b6..c9b40905f0587 100755
--- a/test/bitcoin_functional/functional/wallet_basic.py
+++ b/test/bitcoin_functional/functional/wallet_basic.py
@@ -11,6 +11,7 @@
     assert_array_result,
     assert_equal,
     assert_fee_amount,
+    assert_greater_than,
     assert_raises_rpc_error,
     connect_nodes_bi,
     sync_blocks,
@@ -27,10 +28,9 @@ def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
 
     def setup_network(self):
-        self.add_nodes(4)
-        self.start_node(0)
-        self.start_node(1)
-        self.start_node(2)
+        self.setup_nodes()
+        # Only need nodes 0-2 running at start of test
+        self.stop_node(3)
         connect_nodes_bi(self.nodes, 0, 1)
         connect_nodes_bi(self.nodes, 1, 2)
         connect_nodes_bi(self.nodes, 0, 2)
@@ -92,13 +92,13 @@ def run_test(self):
         assert_equal(txout['value'], 50)
 
         # Send 21 BTC from 0 to 2 using sendtoaddress call.
-        # Locked memory should use at least 32 bytes to sign each transaction
+        # Locked memory should increase to sign transactions
         self.log.info("test getmemoryinfo")
         memory_before = self.nodes[0].getmemoryinfo()
         self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11)
         mempool_txid = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 10)
         memory_after = self.nodes[0].getmemoryinfo()
-        assert(memory_before['locked']['used'] + 64 <= memory_after['locked']['used'])
+        assert_greater_than(memory_after['locked']['used'], memory_before['locked']['used'])
 
         self.log.info("test gettxout (second part)")
         # utxo spent in mempool should be visible if you exclude mempool
@@ -134,9 +134,15 @@ def run_test(self):
         assert_equal([unspent_0], self.nodes[2].listlockunspent())
         self.nodes[2].lockunspent(True, [unspent_0])
         assert_equal(len(self.nodes[2].listlockunspent()), 0)
-        assert_raises_rpc_error(-8, "Invalid parameter, unknown transaction",
+        assert_raises_rpc_error(-8, "txid must be of length 64 (not 34, for '0000000000000000000000000000000000')",
                                 self.nodes[2].lockunspent, False,
                                 [{"txid": "0000000000000000000000000000000000", "vout": 0}])
+        assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')",
+                                self.nodes[2].lockunspent, False,
+                                [{"txid": "ZZZ0000000000000000000000000000000000000000000000000000000000000", "vout": 0}])
+        assert_raises_rpc_error(-8, "Invalid parameter, unknown transaction",
+                                self.nodes[2].lockunspent, False,
+                                [{"txid": "0000000000000000000000000000000000000000000000000000000000000000", "vout": 0}])
         assert_raises_rpc_error(-8, "Invalid parameter, vout index out of bounds",
                                 self.nodes[2].lockunspent, False,
                                 [{"txid": unspent_0["txid"], "vout": 999}])
@@ -473,7 +479,7 @@ def run_test(self):
         # Verify nothing new in wallet
         assert_equal(total_txs, len(self.nodes[0].listtransactions("*", 99999)))
 
-        # Test getaddressinfo. Note that these addresses are taken from disablewallet.py
+        # Test getaddressinfo on external address. Note that these addresses are taken from disablewallet.py
         assert_raises_rpc_error(-5, "Invalid address", self.nodes[0].getaddressinfo, "3J98t1WpEZ73CNmQviecrnyiWrnqRhWNLy")
         address_info = self.nodes[0].getaddressinfo("mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ")
         assert_equal(address_info['address'], "mneYUmWYsuk7kySiURxCi3AGxrAqZxLgPZ")
@@ -481,6 +487,22 @@ def run_test(self):
         assert not address_info["ismine"]
         assert not address_info["iswatchonly"]
         assert not address_info["isscript"]
+        assert not address_info["ischange"]
+
+        # Test getaddressinfo 'ischange' field on change address.
+        self.nodes[0].generate(1)
+        destination = self.nodes[1].getnewaddress()
+        txid = self.nodes[0].sendtoaddress(destination, 0.123)
+        tx = self.nodes[0].decoderawtransaction(self.nodes[0].getrawtransaction(txid))
+        output_addresses = [vout['scriptPubKey']['addresses'][0] for vout in tx["vout"]]
+        assert len(output_addresses) > 1
+        for address in output_addresses:
+            ischange = self.nodes[0].getaddressinfo(address)['ischange']
+            assert_equal(ischange, address != destination)
+            if ischange:
+                change = address
+        self.nodes[0].setlabel(change, 'foobar')
+        assert_equal(self.nodes[0].getaddressinfo(change)['ischange'], False)
 
 if __name__ == '__main__':
     WalletTest().main()
diff --git a/test/bitcoin_functional/functional/wallet_bumpfee.py b/test/bitcoin_functional/functional/wallet_bumpfee.py
index 67ee00871d9ba..7d3d9b61e2765 100755
--- a/test/bitcoin_functional/functional/wallet_bumpfee.py
+++ b/test/bitcoin_functional/functional/wallet_bumpfee.py
@@ -13,26 +13,22 @@
 added in the future, they should try to follow the same convention and not
 make assumptions about execution order.
 """
-
 from decimal import Decimal
+import io
 
 from test_framework.blocktools import add_witness_commitment, create_block, create_coinbase, send_to_witness
 from test_framework.messages import BIP125_SEQUENCE_NUMBER, CTransaction
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import assert_equal, assert_greater_than, assert_raises_rpc_error, bytes_to_hex_str, connect_nodes_bi, hex_str_to_bytes, sync_mempools
 
-import io
-
 WALLET_PASSPHRASE = "test"
 WALLET_PASSPHRASE_TIMEOUT = 3600
 
-
 class BumpFeeTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
         self.setup_clean_chain = True
         self.extra_args = [[
-            "-deprecatedrpc=addwitnessaddress",
             "-walletrbf={}".format(i),
             "-mintxfee=0.00002",
         ] for i in range(self.num_nodes)]
@@ -107,8 +103,7 @@ def test_segwit_bumpfee_succeeds(rbf_node, dest_address):
     # which spends it, and make sure bumpfee can be called on it.
 
     segwit_in = next(u for u in rbf_node.listunspent() if u["amount"] == Decimal("0.001"))
-    segwit_out = rbf_node.getaddressinfo(rbf_node.getnewaddress())
-    rbf_node.addwitnessaddress(segwit_out["address"])
+    segwit_out = rbf_node.getaddressinfo(rbf_node.getnewaddress(address_type='p2sh-segwit'))
     segwitid = send_to_witness(
         use_p2wsh=False,
         node=rbf_node,
@@ -157,7 +152,7 @@ def test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address):
     signedtx = peer_node.signrawtransactionwithwallet(signedtx["hex"])
     rbfid = rbf_node.sendrawtransaction(signedtx["hex"])
     assert_raises_rpc_error(-4, "Transaction contains inputs that don't belong to this wallet",
-                          rbf_node.bumpfee, rbfid)
+                            rbf_node.bumpfee, rbfid)
 
 
 def test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address):
@@ -187,11 +182,11 @@ def test_dust_to_fee(rbf_node, dest_address):
     # (32-byte p2sh-pwpkh output size + 148 p2pkh spend estimate) * 10k(discard_rate) / 1000 = 1800
     # P2SH outputs are slightly "over-discarding" due to the IsDust calculation assuming it will
     # be spent as a P2PKH.
-    bumped_tx = rbf_node.bumpfee(rbfid, {"totalFee": 50000-1800})
+    bumped_tx = rbf_node.bumpfee(rbfid, {"totalFee": 50000 - 1800})
     full_bumped_tx = rbf_node.getrawtransaction(bumped_tx["txid"], 1)
     assert_equal(bumped_tx["fee"], Decimal("0.00050000"))
     assert_equal(len(fulltx["vout"]), 2)
-    assert_equal(len(full_bumped_tx["vout"]), 1)  #change output is eliminated
+    assert_equal(len(full_bumped_tx["vout"]), 1)  # change output is eliminated
 
 
 def test_settxfee(rbf_node, dest_address):
@@ -222,7 +217,7 @@ def test_rebumping_not_replaceable(rbf_node, dest_address):
     rbfid = spend_one_input(rbf_node, dest_address)
     bumped = rbf_node.bumpfee(rbfid, {"totalFee": 10000, "replaceable": False})
     assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
-                          {"totalFee": 20000})
+                            {"totalFee": 20000})
 
 
 def test_unconfirmed_not_spendable(rbf_node, rbf_node_address):
@@ -276,7 +271,7 @@ def test_locked_wallet_fails(rbf_node, dest_address):
     rbfid = spend_one_input(rbf_node, dest_address)
     rbf_node.walletlock()
     assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first.",
-                          rbf_node.bumpfee, rbfid)
+                            rbf_node.bumpfee, rbfid)
 
 
 def spend_one_input(node, dest_address):
diff --git a/test/bitcoin_functional/functional/wallet_dump.py b/test/bitcoin_functional/functional/wallet_dump.py
index b1db1e4ab97c7..20cb816ee81da 100755
--- a/test/bitcoin_functional/functional/wallet_dump.py
+++ b/test/bitcoin_functional/functional/wallet_dump.py
@@ -3,7 +3,6 @@
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 """Test the dumpwallet RPC."""
-
 import os
 
 from test_framework.test_framework import BitcoinTestFramework
@@ -19,11 +18,12 @@ def read_dump(file_name, addrs, script_addrs, hd_master_addr_old):
     Also check that the old hd_master is inactive
     """
     with open(file_name, encoding='utf8') as inputfile:
-        found_addr = 0
+        found_legacy_addr = 0
+        found_p2sh_segwit_addr = 0
+        found_bech32_addr = 0
         found_script_addr = 0
         found_addr_chg = 0
         found_addr_rsv = 0
-        witness_addr_ret = None
         hd_master_addr_ret = None
         for line in inputfile:
             # only read non comment lines
@@ -60,14 +60,14 @@ def read_dump(file_name, addrs, script_addrs, hd_master_addr_old):
                 # count key types
                 for addrObj in addrs:
                     if addrObj['address'] == addr.split(",")[0] and addrObj['hdkeypath'] == keypath and keytype == "label=":
-                        # a labeled entry in the wallet should contain both a native address
-                        # and the p2sh-p2wpkh address that was added at wallet setup
-                        if len(addr.split(",")) == 2:
-                            addr_list = addr.split(",")
-                            # the entry should be of the first key in the wallet
-                            assert_equal(addrs[0]['address'], addr_list[0])
-                            witness_addr_ret = addr_list[1]
-                        found_addr += 1
+                        if addr.startswith('m') or addr.startswith('n'):
+                            # P2PKH address
+                            found_legacy_addr += 1
+                        elif addr.startswith('2'):
+                            # P2SH-segwit address
+                            found_p2sh_segwit_addr += 1
+                        elif addr.startswith('bcrt1'):
+                            found_bech32_addr += 1
                         break
                     elif keytype == "change=1":
                         found_addr_chg += 1
@@ -82,13 +82,13 @@ def read_dump(file_name, addrs, script_addrs, hd_master_addr_old):
                         found_script_addr += 1
                         break
 
-        return found_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret, witness_addr_ret
+        return found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_ret
 
 
 class WalletDumpTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 1
-        self.extra_args = [["-keypool=90", "-addresstype=legacy", "-deprecatedrpc=addwitnessaddress"]]
+        self.extra_args = [["-keypool=90", "-addresstype=legacy"]]
         self.rpc_timeout = 120
 
     def skip_test_if_missing_module(self):
@@ -102,49 +102,54 @@ def run_test(self):
         wallet_unenc_dump = os.path.join(self.nodes[0].datadir, "wallet.unencrypted.dump")
         wallet_enc_dump = os.path.join(self.nodes[0].datadir, "wallet.encrypted.dump")
 
-        # generate 20 addresses to compare against the dump
-        # but since we add a p2sh-p2wpkh address for the first pubkey in the
-        # wallet, we will expect 21 addresses in the dump
-        test_addr_count = 20
+        # generate 30 addresses to compare against the dump
+        # - 10 legacy P2PKH
+        # - 10 P2SH-segwit
+        # - 10 bech32
+        test_addr_count = 10
         addrs = []
-        for i in range(0,test_addr_count):
-            addr = self.nodes[0].getnewaddress()
-            vaddr= self.nodes[0].getaddressinfo(addr) #required to get hd keypath
-            addrs.append(vaddr)
-        # Should be a no-op:
-        self.nodes[0].keypoolrefill()
+        for address_type in ['legacy', 'p2sh-segwit', 'bech32']:
+            for i in range(0, test_addr_count):
+                addr = self.nodes[0].getnewaddress(address_type=address_type)
+                vaddr = self.nodes[0].getaddressinfo(addr)  # required to get hd keypath
+                addrs.append(vaddr)
 
-        # Test scripts dump by adding a P2SH witness and a 1-of-1 multisig address
-        witness_addr = self.nodes[0].addwitnessaddress(addrs[0]["address"], True)
+        # Test scripts dump by adding a 1-of-1 multisig address
         multisig_addr = self.nodes[0].addmultisigaddress(1, [addrs[1]["address"]])["address"]
-        script_addrs = [witness_addr, multisig_addr]
+
+        # Refill the keypool. getnewaddress() refills the keypool *before* taking a key from
+        # the keypool, so the final call to getnewaddress leaves the keypool with one key below
+        # its capacity
+        self.nodes[0].keypoolrefill()
 
         # dump unencrypted wallet
         result = self.nodes[0].dumpwallet(wallet_unenc_dump)
         assert_equal(result['filename'], wallet_unenc_dump)
 
-        found_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc, witness_addr_ret = \
-            read_dump(wallet_unenc_dump, addrs, script_addrs, None)
-        assert_equal(found_addr, test_addr_count)  # all keys must be in the dump
-        assert_equal(found_script_addr, 2)  # all scripts must be in the dump
+        found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, hd_master_addr_unenc = \
+            read_dump(wallet_unenc_dump, addrs, [multisig_addr], None)
+        assert_equal(found_legacy_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_p2sh_segwit_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_bech32_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_script_addr, 1)  # all scripts must be in the dump
         assert_equal(found_addr_chg, 0)  # 0 blocks where mined
         assert_equal(found_addr_rsv, 90 * 2)  # 90 keys plus 100% internal keys
-        assert_equal(witness_addr_ret, witness_addr)  # p2sh-p2wsh address added to the first key
 
-        #encrypt wallet, restart, unlock and dump
+        # encrypt wallet, restart, unlock and dump
         self.nodes[0].encryptwallet('test')
         self.nodes[0].walletpassphrase('test', 10)
         # Should be a no-op:
         self.nodes[0].keypoolrefill()
         self.nodes[0].dumpwallet(wallet_enc_dump)
 
-        found_addr, found_script_addr, found_addr_chg, found_addr_rsv, _, witness_addr_ret = \
-            read_dump(wallet_enc_dump, addrs, script_addrs, hd_master_addr_unenc)
-        assert_equal(found_addr, test_addr_count)
-        assert_equal(found_script_addr, 2)
+        found_legacy_addr, found_p2sh_segwit_addr, found_bech32_addr, found_script_addr, found_addr_chg, found_addr_rsv, _ = \
+            read_dump(wallet_enc_dump, addrs, [multisig_addr], hd_master_addr_unenc)
+        assert_equal(found_legacy_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_p2sh_segwit_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_bech32_addr, test_addr_count)  # all keys must be in the dump
+        assert_equal(found_script_addr, 1)
         assert_equal(found_addr_chg, 90 * 2)  # old reserve keys are marked as change now
         assert_equal(found_addr_rsv, 90 * 2)
-        assert_equal(witness_addr_ret, witness_addr)
 
         # Overwriting should fail
         assert_raises_rpc_error(-8, "already exists", lambda: self.nodes[0].dumpwallet(wallet_enc_dump))
@@ -155,13 +160,13 @@ def run_test(self):
 
         # Make sure the address is not IsMine before import
         result = self.nodes[0].getaddressinfo(multisig_addr)
-        assert(result['ismine'] == False)
+        assert not result['ismine']
 
         self.nodes[0].importwallet(wallet_unenc_dump)
 
         # Now check IsMine is true
         result = self.nodes[0].getaddressinfo(multisig_addr)
-        assert(result['ismine'] == True)
+        assert result['ismine']
 
 if __name__ == '__main__':
     WalletDumpTest().main()
diff --git a/test/bitcoin_functional/functional/wallet_hd.py b/test/bitcoin_functional/functional/wallet_hd.py
index 20cb6ce55a2ed..eb42531693921 100755
--- a/test/bitcoin_functional/functional/wallet_hd.py
+++ b/test/bitcoin_functional/functional/wallet_hd.py
@@ -25,12 +25,6 @@ def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
 
     def run_test(self):
-        # Make sure can't switch off usehd after wallet creation
-        self.stop_node(1)
-        self.nodes[1].assert_start_raises_init_error(['-usehd=0'], "Error: Error loading : You can't disable HD on an already existing HD wallet")
-        self.start_node(1)
-        connect_nodes_bi(self.nodes, 0, 1)
-
         # Make sure we use hd, keep masterkeyid
         masterkeyid = self.nodes[1].getwalletinfo()['hdseedid']
         assert_equal(masterkeyid, self.nodes[1].getwalletinfo()['hdmasterkeyid'])
@@ -75,11 +69,11 @@ def run_test(self):
 
         self.log.info("Restore backup ...")
         self.stop_node(1)
-        # we need to delete the complete regtest2 directory
+        # we need to delete the complete regtest directory
         # otherwise node1 would auto-recover all funds in flag the keypool keys as used
-        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest2", "blocks"))
-        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest2", "chainstate"))
-        shutil.copyfile(os.path.join(self.nodes[1].datadir, "hd.bak"), os.path.join(self.nodes[1].datadir, "regtest2", "wallets", "wallet.dat"))
+        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest", "blocks"))
+        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest", "chainstate"))
+        shutil.copyfile(os.path.join(self.nodes[1].datadir, "hd.bak"), os.path.join(self.nodes[1].datadir, "regtest", "wallets", "wallet.dat"))
         self.start_node(1)
 
         # Assert that derivation is deterministic
@@ -101,9 +95,9 @@ def run_test(self):
 
         # Try a RPC based rescan
         self.stop_node(1)
-        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest2", "blocks"))
-        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest2", "chainstate"))
-        shutil.copyfile(os.path.join(self.nodes[1].datadir, "hd.bak"), os.path.join(self.nodes[1].datadir, "regtest2", "wallets", "wallet.dat"))
+        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest", "blocks"))
+        shutil.rmtree(os.path.join(self.nodes[1].datadir, "regtest", "chainstate"))
+        shutil.copyfile(os.path.join(self.nodes[1].datadir, "hd.bak"), os.path.join(self.nodes[1].datadir, "regtest", "wallets", "wallet.dat"))
         self.start_node(1, extra_args=self.extra_args[1])
         connect_nodes_bi(self.nodes, 0, 1)
         self.sync_all()
diff --git a/test/bitcoin_functional/functional/wallet_import_rescan.py b/test/bitcoin_functional/functional/wallet_import_rescan.py
index f043a544fcb35..08809a688a95b 100755
--- a/test/bitcoin_functional/functional/wallet_import_rescan.py
+++ b/test/bitcoin_functional/functional/wallet_import_rescan.py
@@ -122,16 +122,14 @@ def setup_network(self):
 
         # Import keys with pruning disabled
         self.start_nodes(extra_args=[[]] * self.num_nodes)
-        super().import_deterministic_coinbase_privkeys()
+        for n in self.nodes:
+            n.importprivkey(privkey=n.get_deterministic_priv_key().key, label='coinbase')
         self.stop_nodes()
 
         self.start_nodes()
         for i in range(1, self.num_nodes):
             connect_nodes(self.nodes[i], 0)
 
-    def import_deterministic_coinbase_privkeys(self):
-        pass
-
     def run_test(self):
         # Create one transaction on node 0 with a unique amount for
         # each possible type of wallet import RPC.
diff --git a/test/bitcoin_functional/functional/wallet_import_with_label.py b/test/bitcoin_functional/functional/wallet_import_with_label.py
new file mode 100755
index 0000000000000..95acaa752e528
--- /dev/null
+++ b/test/bitcoin_functional/functional/wallet_import_with_label.py
@@ -0,0 +1,134 @@
+#!/usr/bin/env python3
+# Copyright (c) 2018 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+"""Test the behavior of RPC importprivkey on set and unset labels of
+addresses.
+
+It tests different cases in which an address is imported with importaddress
+with or without a label and then its private key is imported with importprivkey
+with and without a label.
+"""
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal
+
+
+class ImportWithLabel(BitcoinTestFramework):
+    def set_test_params(self):
+        self.num_nodes = 2
+        self.setup_clean_chain = True
+
+    def skip_test_if_missing_module(self):
+        self.skip_if_no_wallet()
+
+    def run_test(self):
+        """Main test logic"""
+
+        self.log.info(
+            "Test importaddress with label and importprivkey without label."
+        )
+        self.log.info("Import a watch-only address with a label.")
+        address = self.nodes[0].getnewaddress()
+        label = "Test Label"
+        self.nodes[1].importaddress(address, label)
+        address_assert = self.nodes[1].getaddressinfo(address)
+
+        assert_equal(address_assert["iswatchonly"], True)
+        assert_equal(address_assert["ismine"], False)
+        assert_equal(address_assert["label"], label)
+
+        self.log.info(
+            "Import the watch-only address's private key without a "
+            "label and the address should keep its label."
+        )
+        priv_key = self.nodes[0].dumpprivkey(address)
+        self.nodes[1].importprivkey(priv_key)
+
+        assert_equal(label, self.nodes[1].getaddressinfo(address)["label"])
+
+        self.log.info(
+            "Test importaddress without label and importprivkey with label."
+        )
+        self.log.info("Import a watch-only address without a label.")
+        address2 = self.nodes[0].getnewaddress()
+        self.nodes[1].importaddress(address2)
+        address_assert2 = self.nodes[1].getaddressinfo(address2)
+
+        assert_equal(address_assert2["iswatchonly"], True)
+        assert_equal(address_assert2["ismine"], False)
+        assert_equal(address_assert2["label"], "")
+
+        self.log.info(
+            "Import the watch-only address's private key with a "
+            "label and the address should have its label updated."
+        )
+        priv_key2 = self.nodes[0].dumpprivkey(address2)
+        label2 = "Test Label 2"
+        self.nodes[1].importprivkey(priv_key2, label2)
+
+        assert_equal(label2, self.nodes[1].getaddressinfo(address2)["label"])
+
+        self.log.info("Test importaddress with label and importprivkey with label.")
+        self.log.info("Import a watch-only address with a label.")
+        address3 = self.nodes[0].getnewaddress()
+        label3_addr = "Test Label 3 for importaddress"
+        self.nodes[1].importaddress(address3, label3_addr)
+        address_assert3 = self.nodes[1].getaddressinfo(address3)
+
+        assert_equal(address_assert3["iswatchonly"], True)
+        assert_equal(address_assert3["ismine"], False)
+        assert_equal(address_assert3["label"], label3_addr)
+
+        self.log.info(
+            "Import the watch-only address's private key with a "
+            "label and the address should have its label updated."
+        )
+        priv_key3 = self.nodes[0].dumpprivkey(address3)
+        label3_priv = "Test Label 3 for importprivkey"
+        self.nodes[1].importprivkey(priv_key3, label3_priv)
+
+        assert_equal(label3_priv, self.nodes[1].getaddressinfo(address3)["label"])
+
+        self.log.info(
+            "Test importprivkey won't label new dests with the same "
+            "label as others labeled dests for the same key."
+        )
+        self.log.info("Import a watch-only legacy address with a label.")
+        address4 = self.nodes[0].getnewaddress()
+        label4_addr = "Test Label 4 for importaddress"
+        self.nodes[1].importaddress(address4, label4_addr)
+        address_assert4 = self.nodes[1].getaddressinfo(address4)
+
+        assert_equal(address_assert4["iswatchonly"], True)
+        assert_equal(address_assert4["ismine"], False)
+        assert_equal(address_assert4["label"], label4_addr)
+
+        self.log.info("Asserts address has no embedded field with dests.")
+
+        assert_equal(address_assert4.get("embedded"), None)
+
+        self.log.info(
+            "Import the watch-only address's private key without a "
+            "label and new destinations for the key should have an "
+            "empty label while the 'old' destination should keep "
+            "its label."
+        )
+        priv_key4 = self.nodes[0].dumpprivkey(address4)
+        self.nodes[1].importprivkey(priv_key4)
+        address_assert4 = self.nodes[1].getaddressinfo(address4)
+
+        assert address_assert4.get("embedded")
+
+        bcaddress_assert = self.nodes[1].getaddressinfo(
+            address_assert4["embedded"]["address"]
+        )
+
+        assert_equal(address_assert4["label"], label4_addr)
+        assert_equal(bcaddress_assert["label"], "")
+
+        self.stop_nodes()
+
+
+if __name__ == "__main__":
+    ImportWithLabel().main()
diff --git a/test/bitcoin_functional/functional/wallet_importmulti.py b/test/bitcoin_functional/functional/wallet_importmulti.py
index f78ff19791886..f2855b6e899c0 100755
--- a/test/bitcoin_functional/functional/wallet_importmulti.py
+++ b/test/bitcoin_functional/functional/wallet_importmulti.py
@@ -11,8 +11,14 @@
     assert_greater_than,
     assert_raises_rpc_error,
     bytes_to_hex_str,
+    hex_str_to_bytes
 )
-
+from test_framework.script import (
+    CScript,
+    OP_0,
+    hash160
+)
+from test_framework.messages import sha256
 
 class ImportMultiTest(BitcoinTestFramework):
     def set_test_params(self):
@@ -48,7 +54,7 @@ def run_test (self):
 
         # RPC importmulti -----------------------------------------------
 
-        # Bitcoin Address
+        # Bitcoin Address (implicit non-internal)
         self.log.info("Should import an address")
         address = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())
         result = self.nodes[1].importmulti([{
@@ -62,6 +68,7 @@ def run_test (self):
         assert_equal(address_assert['iswatchonly'], True)
         assert_equal(address_assert['ismine'], False)
         assert_equal(address_assert['timestamp'], timestamp)
+        assert_equal(address_assert['ischange'], False)
         watchonly_address = address['address']
         watchonly_timestamp = timestamp
 
@@ -89,6 +96,20 @@ def run_test (self):
         assert_equal(address_assert['iswatchonly'], True)
         assert_equal(address_assert['ismine'], False)
         assert_equal(address_assert['timestamp'], timestamp)
+        assert_equal(address_assert['ischange'], True)
+
+        # ScriptPubKey + internal + label
+        self.log.info("Should not allow a label to be specified when internal is true")
+        address = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": address['scriptPubKey'],
+            "timestamp": "now",
+            "internal": True,
+            "label": "Example label"
+        }])
+        assert_equal(result[0]['success'], False)
+        assert_equal(result[0]['error']['code'], -8)
+        assert_equal(result[0]['error']['message'], 'Internal addresses should not have a label')
 
         # Nonstandard scriptPubKey + !internal
         self.log.info("Should not import a nonstandard scriptPubKey without internal flag")
@@ -107,7 +128,7 @@ def run_test (self):
         assert_equal('timestamp' in address_assert, False)
 
 
-        # Address + Public key + !Internal
+        # Address + Public key + !Internal(explicit)
         self.log.info("Should import an address with public key")
         address = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())
         result = self.nodes[1].importmulti([{
@@ -115,7 +136,8 @@ def run_test (self):
                 "address": address['address']
             },
             "timestamp": "now",
-            "pubkeys": [ address['pubkey'] ]
+            "pubkeys": [ address['pubkey'] ],
+            "internal": False
         }])
         assert_equal(result[0]['success'], True)
         address_assert = self.nodes[1].getaddressinfo(address['address'])
@@ -198,7 +220,7 @@ def run_test (self):
         }])
         assert_equal(result[0]['success'], False)
         assert_equal(result[0]['error']['code'], -8)
-        assert_equal(result[0]['error']['message'], 'Incompatibility found between watchonly and keys')
+        assert_equal(result[0]['error']['message'], 'Watch-only addresses should not include private keys')
         address_assert = self.nodes[1].getaddressinfo(address['address'])
         assert_equal(address_assert['iswatchonly'], False)
         assert_equal(address_assert['ismine'], False)
@@ -339,7 +361,7 @@ def run_test (self):
         }])
         assert_equal(result[0]['success'], False)
         assert_equal(result[0]['error']['code'], -8)
-        assert_equal(result[0]['error']['message'], 'Incompatibility found between watchonly and keys')
+        assert_equal(result[0]['error']['message'], 'Watch-only addresses should not include private keys')
 
 
         # Address + Public key + !Internal + Wrong pubkey
@@ -355,7 +377,7 @@ def run_test (self):
         }])
         assert_equal(result[0]['success'], False)
         assert_equal(result[0]['error']['code'], -5)
-        assert_equal(result[0]['error']['message'], 'Consistency check failed')
+        assert_equal(result[0]['error']['message'], 'Key does not match address destination')
         address_assert = self.nodes[1].getaddressinfo(address['address'])
         assert_equal(address_assert['iswatchonly'], False)
         assert_equal(address_assert['ismine'], False)
@@ -375,7 +397,7 @@ def run_test (self):
         result = self.nodes[1].importmulti(request)
         assert_equal(result[0]['success'], False)
         assert_equal(result[0]['error']['code'], -5)
-        assert_equal(result[0]['error']['message'], 'Consistency check failed')
+        assert_equal(result[0]['error']['message'], 'Key does not match address destination')
         address_assert = self.nodes[1].getaddressinfo(address['address'])
         assert_equal(address_assert['iswatchonly'], False)
         assert_equal(address_assert['ismine'], False)
@@ -395,7 +417,7 @@ def run_test (self):
         }])
         assert_equal(result[0]['success'], False)
         assert_equal(result[0]['error']['code'], -5)
-        assert_equal(result[0]['error']['message'], 'Consistency check failed')
+        assert_equal(result[0]['error']['message'], 'Key does not match address destination')
         address_assert = self.nodes[1].getaddressinfo(address['address'])
         assert_equal(address_assert['iswatchonly'], False)
         assert_equal(address_assert['ismine'], False)
@@ -414,7 +436,7 @@ def run_test (self):
         }])
         assert_equal(result[0]['success'], False)
         assert_equal(result[0]['error']['code'], -5)
-        assert_equal(result[0]['error']['message'], 'Consistency check failed')
+        assert_equal(result[0]['error']['message'], 'Key does not match address destination')
         address_assert = self.nodes[1].getaddressinfo(address['address'])
         assert_equal(address_assert['iswatchonly'], False)
         assert_equal(address_assert['ismine'], False)
@@ -458,6 +480,147 @@ def run_test (self):
                 "timestamp": "",
             }])
 
+        # Import P2WPKH address as watch only
+        self.log.info("Should import a P2WPKH address as watch only")
+        address = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress(address_type="bech32"))
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": address['address']
+            },
+            "timestamp": "now",
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(address['address'])
+        assert_equal(address_assert['iswatchonly'], True)
+        assert_equal(address_assert['solvable'], False)
+
+        # Import P2WPKH address with public key but no private key
+        self.log.info("Should import a P2WPKH address and public key as solvable but not spendable")
+        address = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress(address_type="bech32"))
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": address['address']
+            },
+            "timestamp": "now",
+            "pubkeys": [ address['pubkey'] ]
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(address['address'])
+        assert_equal(address_assert['ismine'], False)
+        assert_equal(address_assert['solvable'], True)
+
+        # Import P2WPKH address with key and check it is spendable
+        self.log.info("Should import a P2WPKH address with key")
+        address = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress(address_type="bech32"))
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": address['address']
+            },
+            "timestamp": "now",
+            "keys": [self.nodes[0].dumpprivkey(address['address'])]
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(address['address'])
+        assert_equal(address_assert['iswatchonly'], False)
+        assert_equal(address_assert['ismine'], True)
+
+        # P2WSH multisig address without scripts or keys
+        sig_address_1 = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())
+        sig_address_2 = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())
+        multi_sig_script = self.nodes[0].addmultisigaddress(2, [sig_address_1['pubkey'], sig_address_2['pubkey']], "", "bech32")
+        self.log.info("Should import a p2wsh multisig as watch only without respective redeem script and private keys")
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": multi_sig_script['address']
+            },
+            "timestamp": "now"
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(multi_sig_script['address'])
+        assert_equal(address_assert['solvable'], False)
+
+        # Same P2WSH multisig address as above, but now with witnessscript + private keys
+        self.log.info("Should import a p2wsh with respective redeem script and private keys")
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": multi_sig_script['address']
+            },
+            "timestamp": "now",
+            "witnessscript": multi_sig_script['redeemScript'],
+            "keys": [ self.nodes[0].dumpprivkey(sig_address_1['address']), self.nodes[0].dumpprivkey(sig_address_2['address']) ]
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(multi_sig_script['address'])
+        assert_equal(address_assert['solvable'], True)
+        assert_equal(address_assert['ismine'], True)
+        assert_equal(address_assert['sigsrequired'], 2)
+
+        # P2SH-P2WPKH address with no redeemscript or public or private key
+        sig_address_1 = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress(address_type="p2sh-segwit"))
+        pubkeyhash = hash160(hex_str_to_bytes(sig_address_1['pubkey']))
+        pkscript = CScript([OP_0, pubkeyhash])
+        self.log.info("Should import a p2sh-p2wpkh without redeem script or keys")
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": sig_address_1['address']
+            },
+            "timestamp": "now"
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(sig_address_1['address'])
+        assert_equal(address_assert['solvable'], False)
+        assert_equal(address_assert['ismine'], False)
+
+        # P2SH-P2WPKH address + redeemscript + public key with no private key
+        self.log.info("Should import a p2sh-p2wpkh with respective redeem script and pubkey as solvable")
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": sig_address_1['address']
+            },
+            "timestamp": "now",
+            "redeemscript": bytes_to_hex_str(pkscript),
+            "pubkeys": [ sig_address_1['pubkey'] ]
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(sig_address_1['address'])
+        assert_equal(address_assert['solvable'], True)
+        assert_equal(address_assert['ismine'], False)
+
+        # P2SH-P2WPKH address + redeemscript + private key
+        sig_address_1 = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress(address_type="p2sh-segwit"))
+        pubkeyhash = hash160(hex_str_to_bytes(sig_address_1['pubkey']))
+        pkscript = CScript([OP_0, pubkeyhash])
+        self.log.info("Should import a p2sh-p2wpkh with respective redeem script and private keys")
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": sig_address_1['address']
+            },
+            "timestamp": "now",
+            "redeemscript": bytes_to_hex_str(pkscript),
+            "keys": [ self.nodes[0].dumpprivkey(sig_address_1['address'])]
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(sig_address_1['address'])
+        assert_equal(address_assert['solvable'], True)
+        assert_equal(address_assert['ismine'], True)
+
+        # P2SH-P2WSH 1-of-1 multisig + redeemscript with no private key
+        sig_address_1 = self.nodes[0].getaddressinfo(self.nodes[0].getnewaddress())
+        multi_sig_script = self.nodes[0].addmultisigaddress(1, [sig_address_1['pubkey']], "", "p2sh-segwit")
+        scripthash = sha256(hex_str_to_bytes(multi_sig_script['redeemScript']))
+        redeem_script = CScript([OP_0, scripthash])
+        self.log.info("Should import a p2sh-p2wsh with respective redeem script but no private key")
+        result = self.nodes[1].importmulti([{
+            "scriptPubKey": {
+                "address": multi_sig_script['address']
+            },
+            "timestamp": "now",
+            "redeemscript": bytes_to_hex_str(redeem_script),
+            "witnessscript": multi_sig_script['redeemScript']
+        }])
+        assert_equal(result[0]['success'], True)
+        address_assert = self.nodes[1].getaddressinfo(multi_sig_script['address'])
+        assert_equal(address_assert['solvable'], True)
 
 if __name__ == '__main__':
     ImportMultiTest ().main ()
diff --git a/test/bitcoin_functional/functional/wallet_keypool.py b/test/bitcoin_functional/functional/wallet_keypool.py
index 51afa0cb1a58f..ceb9709712d64 100755
--- a/test/bitcoin_functional/functional/wallet_keypool.py
+++ b/test/bitcoin_functional/functional/wallet_keypool.py
@@ -73,11 +73,10 @@ def run_test(self):
         time.sleep(1.1)
         assert_equal(nodes[0].getwalletinfo()["unlocked_until"], 0)
 
-        # drain them by mining
-        nodes[0].generate(1)
-        nodes[0].generate(1)
-        nodes[0].generate(1)
-        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].generate, 1)
+        # drain the keypool
+        for _ in range(3):
+            nodes[0].getnewaddress()
+        assert_raises_rpc_error(-12, "Keypool ran out", nodes[0].getnewaddress)
 
         nodes[0].walletpassphrase('test', 100)
         nodes[0].keypoolrefill(100)
diff --git a/test/bitcoin_functional/functional/wallet_keypool_topup.py b/test/bitcoin_functional/functional/wallet_keypool_topup.py
index e8a2f81da6dce..f1a441c399733 100755
--- a/test/bitcoin_functional/functional/wallet_keypool_topup.py
+++ b/test/bitcoin_functional/functional/wallet_keypool_topup.py
@@ -31,7 +31,7 @@ def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
 
     def run_test(self):
-        wallet_path = os.path.join(self.nodes[1].datadir, "regtest2", "wallets", "wallet.dat")
+        wallet_path = os.path.join(self.nodes[1].datadir, "regtest", "wallets", "wallet.dat")
         wallet_backup_path = os.path.join(self.nodes[1].datadir, "wallet.bak")
         self.nodes[0].generate(101)
 
diff --git a/test/bitcoin_functional/functional/wallet_labels.py b/test/bitcoin_functional/functional/wallet_labels.py
index 8d7c77bb96483..b71dae9f40d7f 100755
--- a/test/bitcoin_functional/functional/wallet_labels.py
+++ b/test/bitcoin_functional/functional/wallet_labels.py
@@ -29,8 +29,8 @@ def run_test(self):
 
         # Note each time we call generate, all generated coins go into
         # the same address, so we call twice to get two addresses w/50 each
-        node.generate(1)
-        node.generate(101)
+        node.generatetoaddress(nblocks=1, address=node.getnewaddress(label='coinbase'))
+        node.generatetoaddress(nblocks=101, address=node.getnewaddress(label='coinbase'))
         assert_equal(node.getbalance(), 100)
 
         # there should be 2 address groups
@@ -42,8 +42,9 @@ def run_test(self):
         linked_addresses = set()
         for address_group in address_groups:
             assert_equal(len(address_group), 1)
-            assert_equal(len(address_group[0]), 2)
+            assert_equal(len(address_group[0]), 3)
             assert_equal(address_group[0][1], 50)
+            assert_equal(address_group[0][2], 'coinbase')
             linked_addresses.add(address_group[0][0])
 
         # send 50 from each address to a third address not in this wallet
@@ -77,7 +78,7 @@ def run_test(self):
             label.verify(node)
 
         # Check all labels are returned by listlabels.
-        assert_equal(node.listlabels(), [label.name for label in labels])
+        assert_equal(node.listlabels(), sorted(['coinbase'] + [label.name for label in labels]))
 
         # Send a transaction to each label.
         for label in labels:
diff --git a/test/bitcoin_functional/functional/wallet_listreceivedby.py b/test/bitcoin_functional/functional/wallet_listreceivedby.py
index 3485c4470f6b2..011975e371bd7 100755
--- a/test/bitcoin_functional/functional/wallet_listreceivedby.py
+++ b/test/bitcoin_functional/functional/wallet_listreceivedby.py
@@ -18,11 +18,6 @@ class ReceivedByTest(BitcoinTestFramework):
     def set_test_params(self):
         self.num_nodes = 2
 
-    def import_deterministic_coinbase_privkeys(self):
-        assert_equal(0, len(self.nodes[1].listreceivedbyaddress(minconf=0, include_empty=True, include_watchonly=True)))
-        super().import_deterministic_coinbase_privkeys()
-        self.num_cb_reward_addresses = len(self.nodes[1].listreceivedbyaddress(minconf=0, include_empty=True, include_watchonly=True))
-
     def skip_test_if_missing_module(self):
         self.skip_if_no_wallet()
 
@@ -31,6 +26,9 @@ def run_test(self):
         self.nodes[0].generate(1)
         sync_blocks(self.nodes)
 
+        # save the number of coinbase reward addresses so far
+        num_cb_reward_addresses = len(self.nodes[1].listreceivedbyaddress(minconf=0, include_empty=True, include_watchonly=True))
+
         self.log.info("listreceivedbyaddress Test")
 
         # Send from node 0 to 1
@@ -68,11 +66,15 @@ def run_test(self):
         res = self.nodes[1].listreceivedbyaddress(minconf=0, include_empty=True, include_watchonly=True, address_filter=addr)
         assert_array_result(res, {"address": addr}, expected)
         assert_equal(len(res), 1)
+        # Test for regression on CLI calls with address string (#14173)
+        cli_res = self.nodes[1].cli.listreceivedbyaddress(0, True, True, addr)
+        assert_array_result(cli_res, {"address": addr}, expected)
+        assert_equal(len(cli_res), 1)
         # Error on invalid address
         assert_raises_rpc_error(-4, "address_filter parameter was invalid", self.nodes[1].listreceivedbyaddress, minconf=0, include_empty=True, include_watchonly=True, address_filter="bamboozling")
         # Another address receive money
         res = self.nodes[1].listreceivedbyaddress(0, True, True)
-        assert_equal(len(res), 2 + self.num_cb_reward_addresses)  # Right now 2 entries
+        assert_equal(len(res), 2 + num_cb_reward_addresses)  # Right now 2 entries
         other_addr = self.nodes[1].getnewaddress()
         txid2 = self.nodes[0].sendtoaddress(other_addr, 0.1)
         self.nodes[0].generate(1)
@@ -89,7 +91,7 @@ def run_test(self):
         assert_equal(len(res), 1)
         # Should be two entries though without filter
         res = self.nodes[1].listreceivedbyaddress(0, True, True)
-        assert_equal(len(res), 3 + self.num_cb_reward_addresses)  # Became 3 entries
+        assert_equal(len(res), 3 + num_cb_reward_addresses)  # Became 3 entries
 
         # Not on random addr
         other_addr = self.nodes[0].getnewaddress()  # note on node[0]! just a random addr
diff --git a/test/bitcoin_functional/functional/wallet_listsinceblock.py b/test/bitcoin_functional/functional/wallet_listsinceblock.py
index 53e671cd3b0ac..25ab222375b82 100755
--- a/test/bitcoin_functional/functional/wallet_listsinceblock.py
+++ b/test/bitcoin_functional/functional/wallet_listsinceblock.py
@@ -53,8 +53,10 @@ def test_invalid_blockhash(self):
                                 "42759cde25462784395a337460bde75f58e73d3f08bd31fdc3507cbac856a2c4")
         assert_raises_rpc_error(-5, "Block not found", self.nodes[0].listsinceblock,
                                 "0000000000000000000000000000000000000000000000000000000000000000")
-        assert_raises_rpc_error(-5, "Block not found", self.nodes[0].listsinceblock,
+        assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 11, for 'invalid-hex')", self.nodes[0].listsinceblock,
                                 "invalid-hex")
+        assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'Z000000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].listsinceblock,
+                                "Z000000000000000000000000000000000000000000000000000000000000000")
 
     def test_reorg(self):
         '''
diff --git a/test/bitcoin_functional/functional/wallet_multiwallet.py b/test/bitcoin_functional/functional/wallet_multiwallet.py
index 5236203e74570..4f663c82c715c 100755
--- a/test/bitcoin_functional/functional/wallet_multiwallet.py
+++ b/test/bitcoin_functional/functional/wallet_multiwallet.py
@@ -8,6 +8,7 @@
 """
 import os
 import shutil
+import time
 
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.test_node import ErrorMatch
@@ -29,7 +30,7 @@ def skip_test_if_missing_module(self):
     def run_test(self):
         node = self.nodes[0]
 
-        data_dir = lambda *p: os.path.join(node.datadir, 'regtest2', *p)
+        data_dir = lambda *p: os.path.join(node.datadir, 'regtest', *p)
         wallet_dir = lambda *p: data_dir('wallets', *p)
         wallet = lambda name: node.get_wallet_rpc(name)
 
@@ -38,6 +39,8 @@ def wallet_file(name):
                 return wallet_dir(name, "wallet.dat")
             return wallet_dir(name)
 
+        assert_equal(self.nodes[0].listwalletdir(), { 'wallets': [{ 'name': '' }] })
+
         # check wallet.dat is created
         self.stop_nodes()
         assert_equal(os.path.isfile(wallet_dir('wallet.dat')), True)
@@ -68,6 +71,8 @@ def wallet_file(name):
         wallet_names = ['w1', 'w2', 'w3', 'w', 'sub/w5', os.path.join(self.options.tmpdir, 'extern/w6'), 'w7_symlink', 'w8', '']
         extra_args = ['-wallet={}'.format(n) for n in wallet_names]
         self.start_node(0, extra_args)
+        assert_equal(sorted(map(lambda w: w['name'], self.nodes[0].listwalletdir()['wallets'])), ['', os.path.join('sub', 'w5'), 'w', 'w1', 'w2', 'w3', 'w7', 'w7_symlink', 'w8'])
+
         assert_equal(set(node.listwallets()), set(wallet_names))
 
         # check that all requested wallets were created
@@ -76,7 +81,7 @@ def wallet_file(name):
             assert_equal(os.path.isfile(wallet_file(wallet_name)), True)
 
         # should not initialize if wallet path can't be created
-        exp_stderr = "boost::filesystem::create_directory: (The system cannot find the path specified|Not a directory):"
+        exp_stderr = "boost::filesystem::create_directory:"
         self.nodes[0].assert_start_raises_init_error(['-wallet=wallet.dat/bad'], exp_stderr, match=ErrorMatch.PARTIAL_REGEX)
 
         self.nodes[0].assert_start_raises_init_error(['-walletdir=wallets'], 'Error: Specified -walletdir "wallets" does not exist')
@@ -121,7 +126,7 @@ def wallet_file(name):
         self.start_node(0, ['-wallet=w4', '-wallet=w5'])
         assert_equal(set(node.listwallets()), {"w4", "w5"})
         w5 = wallet("w5")
-        w5.generate(1)
+        node.generatetoaddress(nblocks=1, address=w5.getnewaddress())
 
         # now if wallets/ exists again, but the rootdir is specified as the walletdir, w4 and w5 should still be loaded
         os.rename(wallet_dir2, wallet_dir())
@@ -139,11 +144,13 @@ def wallet_file(name):
 
         self.restart_node(0, extra_args)
 
+        assert_equal(sorted(map(lambda w: w['name'], self.nodes[0].listwalletdir()['wallets'])), ['', os.path.join('sub', 'w5'), 'w', 'w1', 'w2', 'w3', 'w7', 'w7_symlink', 'w8', 'w8_copy'])
+
         wallets = [wallet(w) for w in wallet_names]
         wallet_bad = wallet("bad")
 
         # check wallet names and balances
-        wallets[0].generate(1)
+        node.generatetoaddress(nblocks=1, address=wallets[0].getnewaddress())
         for wallet_name, wallet in zip(wallet_names, wallets):
             info = wallet.getwalletinfo()
             assert_equal(info['immature_balance'], 50 if wallet is wallets[0] else 0)
@@ -156,7 +163,7 @@ def wallet_file(name):
         assert_raises_rpc_error(-19, "Wallet file not specified", node.getwalletinfo)
 
         w1, w2, w3, w4, *_ = wallets
-        w1.generate(101)
+        node.generatetoaddress(nblocks=101, address=w1.getnewaddress())
         assert_equal(w1.getbalance(), 100)
         assert_equal(w2.getbalance(), 0)
         assert_equal(w3.getbalance(), 0)
@@ -165,13 +172,13 @@ def wallet_file(name):
         w1.sendtoaddress(w2.getnewaddress(), 1)
         w1.sendtoaddress(w3.getnewaddress(), 2)
         w1.sendtoaddress(w4.getnewaddress(), 3)
-        w1.generate(1)
+        node.generatetoaddress(nblocks=1, address=w1.getnewaddress())
         assert_equal(w2.getbalance(), 1)
         assert_equal(w3.getbalance(), 2)
         assert_equal(w4.getbalance(), 3)
 
         batch = w1.batch([w1.getblockchaininfo.get_request(), w1.getwalletinfo.get_request()])
-        assert_equal(batch[0]["result"]["chain"], "regtest2")
+        assert_equal(batch[0]["result"]["chain"], "regtest")
         assert_equal(batch[1]["result"]["walletname"], "w1")
 
         self.log.info('Check for per-wallet settxfee call')
@@ -219,6 +226,10 @@ def wallet_file(name):
         # Fail to load if one wallet is a copy of another
         assert_raises_rpc_error(-1, "BerkeleyBatch: Can't open database w8_copy (duplicates fileid", self.nodes[0].loadwallet, 'w8_copy')
 
+        # Fail to load if one wallet is a copy of another, test this twice to make sure that we don't re-introduce #14304
+        assert_raises_rpc_error(-1, "BerkeleyBatch: Can't open database w8_copy (duplicates fileid", self.nodes[0].loadwallet, 'w8_copy')
+
+
         # Fail to load if wallet file is a symlink
         assert_raises_rpc_error(-4, "Wallet file verification failed: Invalid -wallet path 'w8_symlink'", self.nodes[0].loadwallet, 'w8_symlink')
 
@@ -262,7 +273,11 @@ def wallet_file(name):
         assert 'w1' not in self.nodes[0].listwallets()
 
         # Successfully unload the wallet referenced by the request endpoint
+        # Also ensure unload works during walletpassphrase timeout
+        w2.encryptwallet('test')
+        w2.walletpassphrase('test', 1)
         w2.unloadwallet()
+        time.sleep(1.1)
         assert 'w2' not in self.nodes[0].listwallets()
 
         # Successfully unload all wallets
@@ -276,6 +291,8 @@ def wallet_file(name):
         assert_equal(self.nodes[0].listwallets(), ['w1'])
         assert_equal(w1.getwalletinfo()['walletname'], 'w1')
 
+        assert_equal(sorted(map(lambda w: w['name'], self.nodes[0].listwalletdir()['wallets'])), ['', os.path.join('sub', 'w5'), 'w', 'w1', 'w2', 'w3', 'w7', 'w7_symlink', 'w8', 'w8_copy', 'w9'])
+
         # Test backing up and restoring wallets
         self.log.info("Test wallet backup")
         self.restart_node(0, ['-nowallet'])