Failing test case for twisted#9031.

exarkun · Feb 12, 2017 · 561d028 · 561d028
1 parent e920939
commit 561d028
Showing 1 changed file with 21 additions and 0 deletions.
diff --git a/src/twisted/conch/test/test_recvline.py b/src/twisted/conch/test/test_recvline.py
@@ -747,6 +747,27 @@ def testUpArrow(self):
              b">>> done"])
 
 
+    def testDownArrowToPartialLineInHistory(self):
+        """
+        Pressing down arrow to visit an entry that was added to the
+        history by pressing the up arrow instead of return does not
+        raise a L{TypeError}.
+
+        @see: U{http://twistedmatrix.com/trac/ticket/9031}
+
+        @return: A L{defer.Deferred} that fires when C{b"done"} is
+            echoed back.
+        """
+
+        return self._trivialTest(
+            b"first line\n" + b"partial line" + up + down + b"\ndone",
+            [b">>> first line",
+             b"first line",
+             b">>> partial line",
+             b"partial line",
+             b">>> done"])
+
+
     def testDownArrow(self):
         return self._trivialTest(
             b"first line\nsecond line\n" + up * 2 + down + b"\ndone",