def test_is_laep_year_1900(self): self.assertFalse(ddelta.is_leap_year(1900))
def test_is_laep_year_2016(self): self.assertTrue(ddelta.is_leap_year(2016))
def test_is_laep_year_2018(self): self.assertFalse(ddelta.is_leap_year(2018))