@pytest.fixture
def regular_holidays_sample(self):
    (yield ['2017-01-02', '2017-01-27', '2017-01-30', '2017-01-31', '2017-02-01', '2017-02-02', '2017-04-03', '2017-04-04', '2017-05-01', '2017-05-29', '2017-05-30', '2017-10-02', '2017-10-03', '2017-10-04', '2017-10-05', '2017-10-06', '2020-01-31'])
@pytest.fixture
def regular_holidays_sample(self):
    (yield ['2017-01-02', '2017-01-27', '2017-01-30', '2017-01-31', '2017-02-01', '2017-02-02', '2017-04-03', '2017-04-04', '2017-05-01', '2017-05-29', '2017-05-30', '2017-10-02', '2017-10-03', '2017-10-04', '2017-10-05', '2017-10-06', '2020-01-31'])