def _get_period_range_for_single_date(self, date_from, date_to):
from_min_period_date, from_max_period_date = get_dates_for_single_date_period_validation(
date_from, self.answer_store, self.metadata)
to_min_period_date, to_max_period_date = get_dates_for_single_date_period_validation(
date_to, self.answer_store, self.metadata)
min_period_date = from_min_period_date or from_max_period_date
max_period_date = to_max_period_date or to_min_period_date
# Work out the largest possible range, for date range question
period_range = max_period_date - min_period_date
return period_range
def test_minimum_and_maximum_offset_dates(self, mock1):
test_metadata = {'date': '2018-02-20'}
store = AnswerStore()
test_answer_id = Answer(
answer_id='date',
answer_instance=1,
group_instance=0,
value='2018-03-20',
)
store.add_or_update(test_answer_id)
answer = {
'id': 'date_answer',
'type': 'Date',
'minimum': {
'meta': 'date',
'offset_by': {
'days': -10
}
},
'maximum': {
'answer_id': 'date',
'offset_by': {
'years': 1
}
}
}
offset_dates = get_dates_for_single_date_period_validation(
answer, store, metadata=test_metadata)
self.assertEqual(offset_dates, (convert_to_datetime('2018-02-10'),
convert_to_datetime('2019-03-20')))
def test_greater_minimum_date_than_maximum_date(self):
answer = {
'id': 'date_answer',
'type': 'Date',
'minimum': {
'value': '2018-02-15',
'offset_by': {
'days': -10
}
},
'maximum': {
'value': '2018-01-15',
'offset_by': {
'days': 10
}
}
}
with self.assertRaises(Exception) as ite:
get_dates_for_single_date_period_validation(
answer, AnswerStore(), {})
self.assertEqual(
'The minimum offset date is greater than the maximum offset date for date-answer.',
str(ite.exception))