47 lines
1.1 KiB
Python
47 lines
1.1 KiB
Python
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"""Misc weakref tests
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Made for Jython.
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"""
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import unittest
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import weakref
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from test import test_support
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class ReferencesTestCase(unittest.TestCase):
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def test___eq__(self):
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class Foo(object):
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def __eq__(self, other):
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return True
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def __hash__(self):
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return hash('foo')
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foo1, foo2 = Foo(), Foo()
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ref1, ref2 = weakref.ref(foo1), weakref.ref(foo2)
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self.assertTrue(ref1() is foo1)
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self.assertTrue(ref2() is foo2)
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def test___hash__call(self):
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hash_called = []
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class Bar(object):
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def __hash__(self):
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hash = object.__hash__(self)
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hash_called.append(hash)
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return hash
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bar = Bar()
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ref = weakref.ref(bar)
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self.assertFalse(hash_called)
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hash(ref)
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self.assertEqual(len(hash_called), 1)
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hash(ref)
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self.assertEqual(len(hash_called), 1)
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self.assertEqual(hash(bar), hash(ref))
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self.assertEqual(len(hash_called), 2)
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def test_main():
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test_support.run_unittest(ReferencesTestCase)
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if __name__ == '__main__':
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test_main()
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