test_builtin.py 文件源码

def test_hash(self):
        hash(None)
        self.assertEqual(hash(1), hash(1L))
        self.assertEqual(hash(1), hash(1.0))
        hash('spam')
        if have_unicode:
            self.assertEqual(hash('spam'), hash(unicode('spam')))
        hash((0,1,2,3))
        def f(): pass
        self.assertRaises(TypeError, hash, [])
        self.assertRaises(TypeError, hash, {})
        # Bug 1536021: Allow hash to return long objects
        class X:
            def __hash__(self):
                return 2**100
        self.assertEqual(type(hash(X())), int)
        class Y(object):
            def __hash__(self):
                return 2**100
        self.assertEqual(type(hash(Y())), int)
        class Z(long):
            def __hash__(self):
                return self
        self.assertEqual(hash(Z(42)), hash(42L))