def test_fails_if_date_is_older_than_max_delta(self):
a_few_seconds_ago = DateTime.now() - TimeDelta(seconds=30)
self.assert_fail(a_few_seconds_ago)
one_minute = TimeDelta(minutes=1)
assert_almost_now(a_few_seconds_ago, max_delta=one_minute)
yesterday = DateTime.now() - TimeDelta(days=1)
self.assert_fail(yesterday, max_delta=one_minute)
def test_passes_if_date_is_almost_now(self):
now = DateTime.now()
assert_almost_now(now)
now = DateTime.now().replace(microsecond=0)
assert_almost_now(now)
now = DateTime.now() - TimeDelta(seconds=0.5)
assert_almost_now(now)
def assert_fail(self, date, **kwargs):
with assert_raises(AssertionError) as exc_context:
assert_almost_now(date, **kwargs)
return exc_context.caught_exception
def test_can_enforce_timezone_aware_checks(self):
datetime = DateTime.now()
assert_none(datetime.tzinfo)
assert_almost_now(datetime)
self.assert_fail(datetime, tz=UTC)
def test_can_handle_timezone_aware_datetimes(self):
datetime = DateTime.now(tz=UTC)
assert_almost_now(datetime)
a_few_seconds_ago = DateTime.now(tz=UTC) - TimeDelta(seconds=30)
self.assert_fail(a_few_seconds_ago)
def test_can_use_plain_integer_for_max_delta(self):
a_few_seconds_ago = DateTime.now() - TimeDelta(seconds=5)
assert_almost_now(a_few_seconds_ago, max_delta=10)
# check that this are really seconds (i.e. not "minutes"/"hours")
one_minute_ago = DateTime.now() - TimeDelta(minutes=1)
self.assert_fail(one_minute_ago, max_delta=10)