def test_should_not_sort_in_place(self):
# given
b1 = backup_utils.create_backup(datetime(2017, 2, 3, 16, 30))
b2 = backup_utils.create_backup(datetime(2017, 2, 2, 16, 30))
b3 = backup_utils.create_backup(datetime(2017, 2, 1, 16, 30))
expected_list = [b1, b3, b2]
actual_list = [b1, b3, b2]
# when
Backup.sort_backups_by_create_time_desc(actual_list)
# then
self.assertListEqual(expected_list, actual_list)
def create_backup_daily_sequence(count,
table=Table(),
start_date=datetime(2017, 2, 1, 16, 30)):
backups = []
for _ in range(count):
backup = create_backup(start_date, table)
backups.append(backup)
start_date += timedelta(days=1)
return Backup.sort_backups_by_create_time_desc(backups)
def filter(self, backups, table_reference):
sorted_backups = Backup.sort_backups_by_create_time_desc(backups)
young_backups, old_backups = BackupAgeDivider.divide_backups_by_age(
sorted_backups)
backups_to_retain = young_backups
if old_backups:
backups_to_retain.append(old_backups[0])
return backups_to_retain
def test_should_sort_backups_by_create_time_desc(self):
# given
b1 = backup_utils.create_backup(datetime(2017, 2, 3, 16, 30))
b2 = backup_utils.create_backup(datetime(2017, 2, 2, 16, 30))
b3 = backup_utils.create_backup(datetime(2017, 2, 1, 16, 30))
expected_list = [b1, b2, b3]
# when
sorted_backups = Backup.sort_backups_by_create_time_desc([b1, b3, b2])
# then
self.assertListEqual(expected_list, sorted_backups)
def sortAndAssertListEqual(self, backup_list1, backup_list2):
sorted_list1 = Backup.sort_backups_by_create_time_desc(backup_list1)
sorted_list2 = Backup.sort_backups_by_create_time_desc(backup_list2)
self.assertListEqual(sorted_list1, sorted_list2)
