def test_get_mirror_date_simple_2(self):
     self.assertEqual(get_mirror_date(), datetime.date(2015, 12, 11) )
 def test_get_mirror_date_simple_1(self):
     self.assertEqual(get_mirror_date(), datetime.date(2016, 12, 20) )
 def test_get_mirror_date_before_equinox_day(self):
     self.assertEqual(get_mirror_date(), datetime.date(2015, 10, 20) )
 def test_get_mirror_date_after_equinox_day(self):
     self.assertEqual(get_mirror_date(), datetime.date(2016, 7, 22) )
 def test_get_mirror_date_on_solstice_day(self):
     self.assertEqual(get_mirror_date(), datetime.date(2015, 12, 21))