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move SharedKeyTests to test_descr

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This commit is contained in:
Benjamin Peterson 2014-03-17 16:20:12 -05:00
parent df813791db
commit 2a6053468e
2 changed files with 25 additions and 25 deletions
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24
Lib/test/test_descr.py
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@ -4974,11 +4974,33 @@ class PicklingTests(unittest.TestCase):
self._assert_is_copy(obj, objcopy2)
class SharedKeyTests(unittest.TestCase):
@support.cpython_only
def test_subclasses(self):
# Verify that subclasses can share keys (per PEP 412)
class A:
pass
class B(A):
pass
a, b = A(), B()
self.assertEqual(sys.getsizeof(vars(a)), sys.getsizeof(vars(b)))
self.assertLess(sys.getsizeof(vars(a)), sys.getsizeof({}))
a.x, a.y, a.z, a.w = range(4)
self.assertNotEqual(sys.getsizeof(vars(a)), sys.getsizeof(vars(b)))
a2 = A()
self.assertEqual(sys.getsizeof(vars(a)), sys.getsizeof(vars(a2)))
self.assertLess(sys.getsizeof(vars(a)), sys.getsizeof({}))
b.u, b.v, b.w, b.t = range(4)
self.assertLess(sys.getsizeof(vars(b)), sys.getsizeof({}))
def test_main():
# Run all local test cases, with PTypesLongInitTest first.
support.run_unittest(PTypesLongInitTest, OperatorsTest,
ClassPropertiesAndMethods, DictProxyTests,
MiscTests, PicklingTests)
MiscTests, PicklingTests, SharedKeyTests)
if __name__ == "__main__":
test_main()