refactoring

lozsui · Feb 11, 2021 · b0f0274 · b0f0274
1 parent 81f1f39
commit b0f0274
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Showing 2 changed files with 46 additions and 105 deletions.
diff --git a/notebooks/fp.ipynb b/notebooks/fp.ipynb
@@ -78,6 +78,7 @@
     "fmt = '{:10} | {:2d} | {:1.3f} | {:10} | {:10}'\n",
     "for person, age, height, (father, mother) in persons:\n",
     "    print(fmt.format(person, age, height, father, mother))\n",
+    "\n",
     "# ------------- Hint -----------------------\n",
     "# For naming columns see namedtuple factory.\n",
     "# ------------------------------------------"
@@ -113,109 +114,6 @@
      "name": "#%% Splitting\n"
     }
    }
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 59,
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Assertions are correct.\n"
-     ]
-    }
-   ],
-   "source": [
-    "s = '0123456789'\n",
-    "out = 'Assertions are correct.'\n",
-    "try:\n",
-    "    step = 2\n",
-    "    assert s[::step] == '02468'\n",
-    "    start = 7\n",
-    "    assert s[start::step] == '79'\n",
-    "    step = 3\n",
-    "    assert s[::step] == '0369'\n",
-    "    stop = 7\n",
-    "    assert s[:stop:step] == '036'\n",
-    "    assert s[::10] == '0'\n",
-    "except AssertionError:\n",
-    "    out = 'One of above assertions raises an error.'\n",
-    "print(out)"
-   ],
-   "metadata": {
-    "collapsed": false,
-    "pycharm": {
-     "name": "#%% Slicing\n"
-    }
-   }
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 51,
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "One of above assertions raises an error.\n"
-     ]
-    }
-   ],
-   "source": [
-    "s = '0123456789'\n",
-    "out = 'Assertions are correct.'\n",
-    "try:\n",
-    "    assert s[::-1] == '9876543210'\n",
-    "    assert s[3::-1] == '3210'\n",
-    "    assert s[::-2] == '97531'\n",
-    "    assert s[3::-2] == '31'\n",
-    "    assert s[::-3] == '852'\n",
-    "    assert s[::10] == '0'\n",
-    "except AssertionError:\n",
-    "    out = 'One of above assertions raises an error.'\n",
-    "print(out)"
-   ],
-   "metadata": {
-    "collapsed": false,
-    "pycharm": {
-     "name": "#%% Slicing in reverse\n"
-    }
-   }
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 67,
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Assertions are correct.\n"
-     ]
-    }
-   ],
-   "source": [
-    "row = '01234567890123456789'\n",
-    "row = 'Samuel Bächler    42'\n",
-    "first_name = slice(0, 7)\n",
-    "last_name = slice(7, 18)\n",
-    "age = slice(18, 20)\n",
-    "out = 'Assertions are correct.'\n",
-    "try:\n",
-    "    assert row[first_name] == 'Samuel '\n",
-    "    assert row[last_name] == 'Bächler    '\n",
-    "    assert row[age] == '42'\n",
-    "except AssertionError:\n",
-    "    out = 'One of above assertions raises an error.'\n",
-    "print(out)"
-   ],
-   "metadata": {
-    "collapsed": false,
-    "pycharm": {
-     "name": "#%% slice method\n"
-    }
-   }
   }
  ],
  "metadata": {

diff --git a/tests/test_fp.py b/tests/test_fp.py
@@ -133,5 +133,48 @@ def test_if_object_is_changeable():
     assert b_true == fp.fixed(unchangeable_tuple)
 
 
-def test_github_communication():
-    assert 1 == 1
+s = '0123456789'
+
+
+def test_slicing_example():
+    step = 2
+    assert s[::step] == '02468'
+    start = 7
+    assert s[start::step] == '79'
+    step = 3
+    assert s[::step] == '0369'
+    stop = 7
+    assert s[:stop:step] == '036'
+    assert s[::10] == '0'
+
+
+def test_slicing_in_reverse():
+    assert s[::-1] == '9876543210'
+    assert s[3::-1] == '3210'
+    assert s[::-2] == '97531'
+    assert s[3::-2] == '31'
+    assert s[::-3] == '9630'
+    assert s[::10] == '0'
+
+
+def test_slice_method_example():
+    row = '01234567890123456789'
+    row = 'Samuel Bächler    42'
+    first_name = slice(0, 7)
+    last_name = slice(7, 18)
+    age = slice(18, 20)
+    assert row[first_name] == 'Samuel '
+    assert row[last_name] == 'Bächler    '
+    assert row[age] == '42'
+
+
+"""
+
+In fp.ipynb in the notebooks section there are examples on
+
+- Grabbing Excess Items: a, b, *rest = range(5)
+- Grabbing Excess Items: a, *middle, b = range(5)
+- Nested Unpacking: person, age, height, (father, mother) in persons
+- Splitting: my_list[:2]
+
+"""