diff options
Diffstat (limited to 'Lib')
| -rw-r--r-- | Lib/test/test_list.py | 8 | ||||
| -rw-r--r-- | Lib/test/test_tuple.py | 8 |
2 files changed, 16 insertions, 0 deletions
diff --git a/Lib/test/test_list.py b/Lib/test/test_list.py index 302c1d8..5df27d3 100644 --- a/Lib/test/test_list.py +++ b/Lib/test/test_list.py @@ -98,6 +98,14 @@ class ListTest(list_tests.CommonTest): d = pickle.dumps(it) self.assertEqual(self.type2test(it), self.type2test(reversed(data))[1:]) + def test_no_comdat_folding(self): + # Issue 8847: In the PGO build, the MSVC linker's COMDAT folding + # optimization causes failures in code that relies on distinct + # function addresses. + class L(list): pass + with self.assertRaises(TypeError): + (3,) + L([1,2]) + def test_main(verbose=None): support.run_unittest(ListTest) diff --git a/Lib/test/test_tuple.py b/Lib/test/test_tuple.py index d928db2..e41711c 100644 --- a/Lib/test/test_tuple.py +++ b/Lib/test/test_tuple.py @@ -193,6 +193,14 @@ class TupleTest(seq_tests.CommonTest): d = pickle.dumps(it) self.assertEqual(self.type2test(it), self.type2test(reversed(data))[1:]) + def test_no_comdat_folding(self): + # Issue 8847: In the PGO build, the MSVC linker's COMDAT folding + # optimization causes failures in code that relies on distinct + # function addresses. + class T(tuple): pass + with self.assertRaises(TypeError): + [3,] + T((1,2)) + def test_main(): support.run_unittest(TupleTest) |