def test_isWeekday_invalidString_returnFalse(self):
event = DonationEvent()
event.date_of_event = "2015.12.26"
self.assertFalse(event.is_weekday())
def test_isWeekend_validString_returnTrue(self):
event = DonationEvent()
event.date_of_event = "2016.01.04"
self.assertTrue(event.is_weekday())
def test_isWeekday_emptyString_returnFalse(self):
event = DonationEvent()
event.date_of_event = ""
self.assertFalse(event.is_weekday())
