def test2_NextDay(self):
result = HW1.NextDay((28, 2, 2012))
self.assertEqual('29/2/2012', result)
def test4_NextDay(self):
result = HW1.NextDay((31, 12, 2016))
self.assertEqual('1/1/2017', result)
def test1_NextDay(self):
result= HW1.NextDay((23, 6, 2017))
self.assertEqual('24/6/2017', result)
def test3_NextDay(self):
result = HW1.NextDay((28, 2, 2015))
self.assertEqual('1/3/2015', result)
