Method test_subclass_now

Lib/test/datetimetester.py:3220–3246

(self)

                    self.assertEqual(dt.extra, 7)

    def test_subclass_now(self):
        # Test that alternate constructors call the constructor
        class DateTimeSubclass(self.theclass):
            def __new__(cls, *args, **kwargs):
                result = self.theclass.__new__(cls, *args, **kwargs)
                result.extra = 7

                return result

        test_cases = [
            ('now', 'now', {}),
            ('utcnow', 'utcnow', {}),
            ('now_utc', 'now', {'tz': timezone.utc}),
            ('now_fixed', 'now', {'tz': timezone(timedelta(hours=-5), "EST")}),
        ]

        for name, meth_name, kwargs in test_cases:
            with self.subTest(name):
                constr = getattr(DateTimeSubclass, meth_name)
                if meth_name == "utcnow":
                    with self.assertWarns(DeprecationWarning):
                        dt = constr(**kwargs)
                else:
                    dt = constr(**kwargs)

                self.assertIsInstance(dt, DateTimeSubclass)
                self.assertEqual(dt.extra, 7)

    def test_subclass_replace_fold(self):
        class DateTimeSubclass(self.theclass):