test_abstract_numbers.py 文件源码

def test_complex(self):
        self.assertFalse(issubclass(complex, Real))
        self.assertTrue(issubclass(complex, Complex))

        c1, c2 = complex(3, 2), complex(4,1)
        # XXX: This is not ideal, but see the comment in math_trunc().
        self.assertRaises(AttributeError, math.trunc, c1)
        self.assertRaises(TypeError, float, c1)
        self.assertRaises(TypeError, int, c1)