def test_get_millenium_part(self):
from datetime import date
imperial_date = ImperialDate(date(2016, 1, 1))
self.assertEqual(imperial_date._get_millennium_part(), '016.M3')
imperial_date = ImperialDate(date(5098, 12, 25))
self.assertEqual(imperial_date._get_millennium_part(), '098.M6')
def test_date_class(self):
imperial_date = ImperialDate()
with self.assertRaises(ValueError):
imperial_date.date_class = -1
with self.assertRaises(ValueError):
imperial_date.date_class = 13
with self.assertRaises(ValueError):
imperial_date.date_class = 'ASDF'
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)
