def test_sort_events_by_date(self):
events = [Event(name='event3', invited_count='1', date=date(year=2016, month=5, day=2)),
Event(name='event2', invited_count='100', date=date(year=2016, month=4, day=2)),
Event(name='event1', invited_count='10', date=date(year=2015, month=12, day=2))
]
sorted_events = Calendar.sort_events_by_date(events)
self.assertEqual(sorted_events[0].name, 'event1')
self.assertEqual(sorted_events[0].date, date(year=2015, month=12, day=2))
