Skipped a dateformat test on Windows as needed.

from __future__ import unicode_literals

import sys

from datetime import date, datetime

from unittest import skipIf

from django.test import SimpleTestCase, override_settings

from django.test.utils import TZ_SUPPORT, requires_tz_support

        dt = datetime(2009, 5, 16, 5, 30, 30)

        self.assertEqual(datetime.fromtimestamp(int(format(dt, 'U'))), dt)

    @skipIf(sys.platform.startswith('win') and not pytz, "Test requires pytz on Windows")

    def test_naive_ambiguous_datetime(self):

        # dt is ambiguous in Europe/Copenhagen. LocalTimezone guesses the

        # offset (and gets it wrong 50% of the time) while pytz refuses the