test_builtins.py 文件源码

def test_hasattr(self):
        self.assertTrue(hasattr(sys, 'stdout'))
        self.assertRaises(TypeError, hasattr, sys, 1)
        self.assertRaises(TypeError, hasattr)
        # Fails on Py2:
        # self.assertEqual(False, hasattr(sys, chr(sys.maxunicode)))

        # Check that hasattr propagates all exceptions outside of
        # AttributeError.
        class A(object):
            def __getattr__(self, what):
                raise SystemExit
        self.assertRaises(SystemExit, hasattr, A(), "b")
        class B(object):
            def __getattr__(self, what):
                raise ValueError
        # Was: self.assertRaises(ValueError, hasattr, B(), "b")
        # Fails on Py2