/usr/share/pyshared/djcelery/tests/test_schedulers.py is in python-django-celery 2.5.5-2.
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from datetime import datetime, timedelta
from itertools import count
from time import time
from celery.schedules import schedule, crontab
from celery.utils.timeutils import timedelta_seconds
from djcelery import schedulers
from djcelery.app import app
from djcelery.models import PeriodicTask, IntervalSchedule, CrontabSchedule
from djcelery.models import PeriodicTasks
from djcelery.utils import now
from djcelery.tests.utils import unittest
def create_model_interval(schedule, **kwargs):
return create_model(interval=IntervalSchedule.from_schedule(schedule),
**kwargs)
def create_model_crontab(schedule, **kwargs):
return create_model(crontab=CrontabSchedule.from_schedule(schedule),
**kwargs)
_next_id = count(0).next
def create_model(Model=PeriodicTask, **kwargs):
entry = dict(name="thefoo%s" % _next_id(),
task="djcelery.unittest.add%s" % _next_id(),
args="[2, 2]",
kwargs='{"callback": "foo"}',
queue="xaz",
routing_key="cpu",
exchange="foo")
return Model(**dict(entry, **kwargs))
class EntryTrackSave(schedulers.ModelEntry):
def __init__(self, *args, **kwargs):
self.saved = 0
super(EntryTrackSave, self).__init__(*args, **kwargs)
def save(self):
self.saved += 1
super(EntryTrackSave, self).save()
class EntrySaveRaises(schedulers.ModelEntry):
def save(self):
raise RuntimeError("this is expected")
class TrackingScheduler(schedulers.DatabaseScheduler):
Entry = EntryTrackSave
def __init__(self, *args, **kwargs):
self.flushed = 0
schedulers.DatabaseScheduler.__init__(self, *args, **kwargs)
def sync(self):
self.flushed += 1
schedulers.DatabaseScheduler.sync(self)
class test_ModelEntry(unittest.TestCase):
Entry = EntryTrackSave
def tearDown(self):
PeriodicTask.objects.all().delete()
def test_entry(self):
m = create_model_interval(schedule(timedelta(seconds=10)))
e = self.Entry(m)
self.assertListEqual(e.args, [2, 2])
self.assertDictEqual(e.kwargs, {"callback": "foo"})
self.assertTrue(e.schedule)
self.assertEqual(e.total_run_count, 0)
self.assertIsInstance(e.last_run_at, datetime)
self.assertDictContainsSubset({"queue": "xaz",
"exchange": "foo",
"routing_key": "cpu"}, e.options)
right_now = now()
m2 = create_model_interval(schedule(timedelta(seconds=10)),
last_run_at=right_now)
self.assertTrue(m2.last_run_at)
e2 = self.Entry(m2)
self.assertIs(e2.last_run_at, right_now)
e3 = e2.next()
self.assertGreater(e3.last_run_at, e2.last_run_at)
self.assertEqual(e3.total_run_count, 1)
class test_DatabaseScheduler(unittest.TestCase):
Scheduler = TrackingScheduler
def setUp(self):
PeriodicTask.objects.all().delete()
self.prev_schedule = app.conf.CELERYBEAT_SCHEDULE
app.conf.CELERYBEAT_SCHEDULE = {}
m1 = create_model_interval(schedule(timedelta(seconds=10)))
m2 = create_model_interval(schedule(timedelta(minutes=20)))
m3 = create_model_crontab(crontab(minute="2,4,5", nowfun=now))
for obj in m1, m2, m3:
obj.save()
self.s = self.Scheduler()
self.m1 = PeriodicTask.objects.get(name=m1.name)
self.m2 = PeriodicTask.objects.get(name=m2.name)
self.m3 = PeriodicTask.objects.get(name=m3.name)
def tearDown(self):
app.conf.CELERYBEAT_SCHEDULE = self.prev_schedule
PeriodicTask.objects.all().delete()
def test_constructor(self):
self.assertIsInstance(self.s._dirty, set)
self.assertIsNone(self.s._last_sync)
self.assertTrue(self.s.sync_every)
def test_all_as_schedule(self):
sched = self.s.schedule
self.assertTrue(sched)
self.assertEqual(len(sched), 4)
self.assertIn("celery.backend_cleanup", sched)
for n, e in sched.items():
self.assertIsInstance(e, self.s.Entry)
def test_schedule_changed(self):
self.m2.args = "[16, 16]"
self.m2.save()
e2 = self.s.schedule[self.m2.name]
self.assertListEqual(e2.args, [16, 16])
self.m1.args = "[32, 32]"
self.m1.save()
e1 = self.s.schedule[self.m1.name]
self.assertListEqual(e1.args, [32, 32])
e1 = self.s.schedule[self.m1.name]
self.assertListEqual(e1.args, [32, 32])
self.m3.delete()
self.assertRaises(KeyError, self.s.schedule.__getitem__, self.m3.name)
def test_should_sync(self):
self.assertTrue(self.s.should_sync())
self.s._last_sync = time()
self.assertFalse(self.s.should_sync())
self.s._last_sync -= self.s.sync_every
self.assertTrue(self.s.should_sync())
def test_reserve(self):
e1 = self.s.schedule[self.m1.name]
self.s.schedule[self.m1.name] = self.s.reserve(e1)
self.assertEqual(self.s.flushed, 2)
e2 = self.s.schedule[self.m2.name]
self.s.schedule[self.m2.name] = self.s.reserve(e2)
self.assertEqual(self.s.flushed, 2)
self.assertIn(self.m2.name, self.s._dirty)
def test_sync_saves_last_run_at(self):
e1 = self.s.schedule[self.m2.name]
last_run = e1.last_run_at
last_run2 = last_run - timedelta(days=1)
e1.model.last_run_at = last_run2
self.s._dirty.add(self.m2.name)
self.s.sync()
e2 = self.s.schedule[self.m2.name]
self.assertEqual(e2.last_run_at, last_run2)
def test_sync_syncs_before_save(self):
# Get the entry for m2
e1 = self.s.schedule[self.m2.name]
# Increment the entry (but make sure it doesn't sync)
self.s._last_sync = time()
e2 = self.s.schedule[e1.name] = self.s.reserve(e1)
self.assertEqual(self.s.flushed, 2)
# Fetch the raw object from db, change the args
# and save the changes.
m2 = PeriodicTask.objects.get(pk=self.m2.pk)
m2.args = "[16, 16]"
m2.save()
# get_schedule should now see the schedule has changed.
# and also sync the dirty objects.
e3 = self.s.schedule[self.m2.name]
self.assertEqual(self.s.flushed, 3)
self.assertEqual(e3.last_run_at, e2.last_run_at)
self.assertListEqual(e3.args, [16, 16])
def test_sync_not_dirty(self):
self.s._dirty.clear()
self.s.sync()
def test_sync_object_gone(self):
self.s._dirty.add("does-not-exist")
self.s.sync()
def test_sync_rollback_on_save_error(self):
self.s.schedule[self.m1.name] = EntrySaveRaises(self.m1)
self.s._dirty.add(self.m1.name)
self.assertRaises(RuntimeError, self.s.sync)
class test_models(unittest.TestCase):
def test_IntervalSchedule_unicode(self):
self.assertEqual(unicode(IntervalSchedule(every=1, period="seconds")),
"every second")
self.assertEqual(unicode(IntervalSchedule(every=10, period="seconds")),
"every 10 seconds")
def test_CrontabSchedule_unicode(self):
self.assertEqual(unicode(CrontabSchedule(minute=3,
hour=3,
day_of_week=None)),
"3 3 * (m/h/d)")
self.assertEqual(unicode(CrontabSchedule(minute=3,
hour=3,
day_of_week=None)),
"3 3 * (m/h/d)")
def test_PeriodicTask_unicode_interval(self):
p = create_model_interval(schedule(timedelta(seconds=10)))
self.assertEqual(unicode(p),
"%s: every 10.0 seconds" % p.name)
def test_PeriodicTask_unicode_crontab(self):
p = create_model_crontab(crontab(hour="4, 5", day_of_week="4, 5",
nowfun=now))
self.assertEqual(unicode(p),
"%s: * 4,5 4,5 (m/h/d)" % p.name)
def test_PeriodicTask_schedule_property(self):
p1 = create_model_interval(schedule(timedelta(seconds=10)))
s1 = p1.schedule
self.assertEqual(timedelta_seconds(s1.run_every), 10)
p2 = create_model_crontab(crontab(hour="4, 5", minute="10,20,30",
nowfun=now))
s2 = p2.schedule
self.assertSetEqual(s2.hour, set([4, 5]))
self.assertSetEqual(s2.minute, set([10, 20, 30]))
self.assertSetEqual(s2.day_of_week, set([0, 1, 2, 3, 4, 5, 6]))
def test_PeriodicTask_unicode_no_schedule(self):
p = create_model()
self.assertEqual(unicode(p), "%s: {no schedule}" % p.name)
def test_CrontabSchedule_schedule(self):
s = CrontabSchedule(minute="3, 7", hour="3, 4", day_of_week="*")
self.assertEqual(s.schedule.minute, set([3, 7]))
self.assertEqual(s.schedule.hour, set([3, 4]))
self.assertEqual(s.schedule.day_of_week, set([0, 1, 2, 3, 4, 5, 6]))
class test_model_PeriodicTasks(unittest.TestCase):
def setUp(self):
PeriodicTasks.objects.all().delete()
def test_track_changes(self):
self.assertIsNone(PeriodicTasks.last_change())
m1 = create_model_interval(schedule(timedelta(seconds=10)))
m1.save()
x = PeriodicTasks.last_change()
self.assertTrue(x)
m1.args = "(23, 24)"
m1.save()
y = PeriodicTasks.last_change()
self.assertTrue(y)
self.assertGreater(y, x)
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