datetimetester.py 文件源码

def test_replace(self):
        cls = self.theclass
        z100 = FixedOffset(100, "+100")
        zm200 = FixedOffset(timedelta(minutes=-200), "-200")
        args = [1, 2, 3, 4, z100]
        base = cls(*args)
        self.assertEqual(base, base.replace())

        i = 0
        for name, newval in (("hour", 5),
                             ("minute", 6),
                             ("second", 7),
                             ("microsecond", 8),
                             ("tzinfo", zm200)):
            newargs = args[:]
            newargs[i] = newval
            expected = cls(*newargs)
            got = base.replace(**{name: newval})
            self.assertEqual(expected, got)
            i += 1

        # Ensure we can get rid of a tzinfo.
        self.assertEqual(base.tzname(), "+100")
        base2 = base.replace(tzinfo=None)
        self.assertTrue(base2.tzinfo is None)
        self.assertTrue(base2.tzname() is None)

        # Ensure we can add one.
        base3 = base2.replace(tzinfo=z100)
        self.assertEqual(base, base3)
        self.assertTrue(base.tzinfo is base3.tzinfo)

        # Out of bounds.
        base = cls(1)
        self.assertRaises(ValueError, base.replace, hour=24)
        self.assertRaises(ValueError, base.replace, minute=-1)
        self.assertRaises(ValueError, base.replace, second=100)
        self.assertRaises(ValueError, base.replace, microsecond=1000000)