From 610a51f364f6cb5ffb5167d9bf4dcecc1815107c Mon Sep 17 00:00:00 2001 From: Raymond Hettinger Date: Sun, 17 May 2015 14:45:58 -0700 Subject: Issue #23757: Only call the concrete list API for exact lists. --- Lib/test/seq_tests.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Lib/test/seq_tests.py') diff --git a/Lib/test/seq_tests.py b/Lib/test/seq_tests.py index 9834af118a..24162494dd 100644 --- a/Lib/test/seq_tests.py +++ b/Lib/test/seq_tests.py @@ -85,6 +85,14 @@ def itermulti(seqn): 'Test multiple tiers of iterators' return chain(map(lambda x:x, iterfunc(IterGen(Sequence(seqn))))) +class LyingTuple(tuple): + def __iter__(self): + yield 1 + +class LyingList(list): + def __iter__(self): + yield 1 + class CommonTest(unittest.TestCase): # The type to be tested type2test = None @@ -131,6 +139,10 @@ class CommonTest(unittest.TestCase): self.assertRaises(TypeError, self.type2test, IterNoNext(s)) self.assertRaises(ZeroDivisionError, self.type2test, IterGenExc(s)) + # Issue #23757 + self.assertEqual(self.type2test(LyingTuple((2,))), self.type2test((1,))) + self.assertEqual(self.type2test(LyingList([2])), self.type2test([1])) + def test_truth(self): self.assertFalse(self.type2test()) self.assertTrue(self.type2test([42])) -- cgit v1.2.1