def test_valid_date(self):
from datetime import date
imperial_date = ImperialDate()
with self.assertRaises(ValueError):
imperial_date.regular_date = 'TEST'
with self.assertRaises(ValueError):
imperial_date.regular_date = 123
imperial_date.regular_date = date.today()
def test_get_year_fraction(self):
from datetime import date
imperial_date = ImperialDate(date(2016, 6, 30))
year_fraction = imperial_date._get_year_fraction()
self.assertTrue(490 < year_fraction < 510)
imperial_date.regular_date = date(2016, 1, 1)
year_fraction = imperial_date._get_year_fraction()
self.assertTrue(0 < year_fraction < 5)
