def test_unified_dates(self):
    self.assertEqual(unified_strdate('December 21, 2010'), '20101221')
    self.assertEqual(unified_strdate('8/7/2009'), '20090708')
    self.assertEqual(unified_strdate('Dec 14, 2012'), '20121214')
    self.assertEqual(unified_strdate('2012/10/11 01:56:38 +0000'), '20121011')
    self.assertEqual(unified_strdate('1968 12 10'), '19681210')
    self.assertEqual(unified_strdate('1968-12-10'), '19681210')
    self.assertEqual(unified_strdate('28/01/2014 21:00:00 +0100'), '20140128')
    self.assertEqual(unified_strdate('11/26/2014 11:30:00 AM PST', day_first=False), '20141126')
    self.assertEqual(unified_strdate('2/2/2015 6:47:40 PM', day_first=False), '20150202')
    self.assertEqual(unified_strdate('Feb 14th 2016 5:45PM'), '20160214')
    self.assertEqual(unified_strdate('25-09-2014'), '20140925')
    self.assertEqual(unified_strdate('27.02.2016 17:30'), '20160227')
    self.assertEqual(unified_strdate('UNKNOWN DATE FORMAT'), None)
    self.assertEqual(unified_strdate('Feb 7, 2016 at 6:35 pm'), '20160207')
    self.assertEqual(unified_strdate('July 15th, 2013'), '20130715')
    self.assertEqual(unified_strdate('September 1st, 2013'), '20130901')
    self.assertEqual(unified_strdate('Sep 2nd, 2013'), '20130902')
    self.assertEqual(unified_strdate('November 3rd, 2019'), '20191103')
    self.assertEqual(unified_strdate('October 23rd, 2005'), '20051023')
def test_unified_dates(self):
    self.assertEqual(unified_strdate('December 21, 2010'), '20101221')
    self.assertEqual(unified_strdate('8/7/2009'), '20090708')
    self.assertEqual(unified_strdate('Dec 14, 2012'), '20121214')
    self.assertEqual(unified_strdate('2012/10/11 01:56:38 +0000'), '20121011')
    self.assertEqual(unified_strdate('1968 12 10'), '19681210')
    self.assertEqual(unified_strdate('1968-12-10'), '19681210')
    self.assertEqual(unified_strdate('28/01/2014 21:00:00 +0100'), '20140128')
    self.assertEqual(unified_strdate('11/26/2014 11:30:00 AM PST', day_first=False), '20141126')
    self.assertEqual(unified_strdate('2/2/2015 6:47:40 PM', day_first=False), '20150202')
    self.assertEqual(unified_strdate('Feb 14th 2016 5:45PM'), '20160214')
    self.assertEqual(unified_strdate('25-09-2014'), '20140925')
    self.assertEqual(unified_strdate('27.02.2016 17:30'), '20160227')
    self.assertEqual(unified_strdate('UNKNOWN DATE FORMAT'), None)
    self.assertEqual(unified_strdate('Feb 7, 2016 at 6:35 pm'), '20160207')
    self.assertEqual(unified_strdate('July 15th, 2013'), '20130715')
    self.assertEqual(unified_strdate('September 1st, 2013'), '20130901')
    self.assertEqual(unified_strdate('Sep 2nd, 2013'), '20130902')
    self.assertEqual(unified_strdate('November 3rd, 2019'), '20191103')
    self.assertEqual(unified_strdate('October 23rd, 2005'), '20051023')