async def test_disabled_at_install(coord: Coordinator, dest, time):
"""
Verifies that at install time, if some snapshots are already present the
addon doesn't try to sync over and over when drive is disabled. This was
a problem at one point.
"""
dest.setEnabled(True)
await coord.sync()
assert len(coord.snapshots()) == 1
dest.setEnabled(False)
time.advance(days=5)
assert coord.check()
await coord.sync()
assert not coord.check()
async def test_alternate_timezone(coord: Coordinator, time: FakeTime, model: Model, dest, source, simple_config: Config):
time.setTimeZone("Europe/Stockholm")
simple_config.override(Setting.BACKUP_TIME_OF_DAY, "12:00")
simple_config.override(Setting.DAYS_BETWEEN_BACKUPS, 1)
source.setMax(10)
source.insert("Fri", time.toUtc(time.local(2020, 3, 16, 18, 5)))
time.setNow(time.local(2020, 3, 16, 18, 6))
model.reinitialize()
coord.reset()
await coord.sync()
assert not coord.check()
assert coord.nextBackupTime() == time.local(2020, 3, 17, 12)
time.setNow(time.local(2020, 3, 17, 11, 59))
await coord.sync()
assert not coord.check()
time.setNow(time.local(2020, 3, 17, 12))
assert coord.check()
async def test_backoff(coord: Coordinator, model, source: HelperTestSource,
dest: HelperTestSource, snapshot, time: FakeTime,
simple_config: Config):
assert coord.check()
simple_config.override(Setting.DAYS_BETWEEN_SNAPSHOTS, 1)
simple_config.override(Setting.MAX_SYNC_INTERVAL_SECONDS, 60 * 60 * 6)
assert coord.nextSyncAttempt() == time.now() + timedelta(hours=6)
assert not coord.check()
error = Exception("BOOM")
old_sync = model.sync
model.sync = lambda s: doRaise(error)
await coord.sync()
# first backoff should be 0 seconds
assert coord.nextSyncAttempt() == time.now()
assert coord.check()
# backoff maxes out at 1 hr = 3600 seconds
for seconds in [
10, 20, 40, 80, 160, 320, 640, 1280, 2560, 3600, 3600, 3600
]:
await coord.sync()
assert coord.nextSyncAttempt() == time.now() + timedelta(
seconds=seconds)
assert not coord.check()
assert not coord.check()
assert not coord.check()
# a good sync resets it back to 6 hours from now
model.sync = old_sync
await coord.sync()
assert coord.nextSyncAttempt() == time.now() + timedelta(hours=6)
assert not coord.check()
# if the next snapshot is less that 6 hours from the last one, that that shoudl be when we sync
simple_config.override(Setting.DAYS_BETWEEN_SNAPSHOTS, 1.0 / 24.0)
assert coord.nextSyncAttempt() == time.now() + timedelta(hours=1)
assert not coord.check()
time.advance(hours=2)
assert coord.nextSyncAttempt() == time.now() - timedelta(hours=1)
assert coord.check()
