def test_get_solstice_date_after_equinox_day(self):
     self.assertEqual(_get_solstice_date(), datetime.date(2016, 6, 21) )
 def test_get_solstice_date_on_solstice_day(self):
     self.assertEqual(_get_solstice_date(), datetime.date(2015, 12, 21))
 def test_get_solstice_date_before_equinox_day(self):
     self.assertEqual(_get_solstice_date(), datetime.date(2015, 12, 21) )