forked from celery/celery
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test_beat.py
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test_beat.py
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from __future__ import absolute_import
import logging
from datetime import datetime, timedelta
from nose import SkipTest
from celery import beat
from celery import registry
from celery.result import AsyncResult
from celery.schedules import schedule
from celery.task.base import Task
from celery.utils import uuid
from celery.tests.utils import Case
class Object(object):
pass
class MockShelve(dict):
closed = False
synced = False
def close(self):
self.closed = True
def sync(self):
self.synced = True
class MockService(object):
started = False
stopped = False
def __init__(self, *args, **kwargs):
pass
def start(self, **kwargs):
self.started = True
def stop(self, **kwargs):
self.stopped = True
class test_ScheduleEntry(Case):
Entry = beat.ScheduleEntry
def create_entry(self, **kwargs):
entry = dict(name="celery.unittest.add",
schedule=schedule(timedelta(seconds=10)),
args=(2, 2),
options={"routing_key": "cpu"})
return self.Entry(**dict(entry, **kwargs))
def test_next(self):
entry = self.create_entry(schedule=10)
self.assertTrue(entry.last_run_at)
self.assertIsInstance(entry.last_run_at, datetime)
self.assertEqual(entry.total_run_count, 0)
next_run_at = entry.last_run_at + timedelta(seconds=10)
next = entry.next(next_run_at)
self.assertGreaterEqual(next.last_run_at, next_run_at)
self.assertEqual(next.total_run_count, 1)
def test_is_due(self):
entry = self.create_entry(schedule=timedelta(seconds=10))
due1, next_time_to_run1 = entry.is_due()
self.assertFalse(due1)
self.assertGreater(next_time_to_run1, 9)
next_run_at = entry.last_run_at - timedelta(seconds=10)
next = entry.next(next_run_at)
due2, next_time_to_run2 = next.is_due()
self.assertTrue(due2)
self.assertGreater(next_time_to_run2, 9)
def test_repr(self):
entry = self.create_entry()
self.assertIn("<Entry:", repr(entry))
def test_update(self):
entry = self.create_entry()
self.assertEqual(entry.schedule, timedelta(seconds=10))
self.assertTupleEqual(entry.args, (2, 2))
self.assertDictEqual(entry.kwargs, {})
self.assertDictEqual(entry.options, {"routing_key": "cpu"})
entry2 = self.create_entry(schedule=timedelta(minutes=20),
args=(16, 16),
kwargs={"callback": "foo.bar.baz"},
options={"routing_key": "urgent"})
entry.update(entry2)
self.assertEqual(entry.schedule, schedule(timedelta(minutes=20)))
self.assertTupleEqual(entry.args, (16, 16))
self.assertDictEqual(entry.kwargs, {"callback": "foo.bar.baz"})
self.assertDictEqual(entry.options, {"routing_key": "urgent"})
class MockLogger(logging.Logger):
def __init__(self, *args, **kwargs):
self.logged = []
logging.Logger.__init__(self, *args, **kwargs)
def _log(self, level, msg, args, **kwargs):
self.logged.append((level, msg, args, kwargs))
class mScheduler(beat.Scheduler):
def __init__(self, *args, **kwargs):
self.sent = []
beat.Scheduler.__init__(self, *args, **kwargs)
self.logger = MockLogger("celery.beat", logging.ERROR)
def send_task(self, name=None, args=None, kwargs=None, **options):
self.sent.append({"name": name,
"args": args,
"kwargs": kwargs,
"options": options})
return AsyncResult(uuid())
class mSchedulerSchedulingError(mScheduler):
def send_task(self, *args, **kwargs):
raise beat.SchedulingError("Could not apply task")
class mSchedulerRuntimeError(mScheduler):
def maybe_due(self, *args, **kwargs):
raise RuntimeError("dict modified while itervalues")
class mocked_schedule(schedule):
def __init__(self, is_due, next_run_at):
self._is_due = is_due
self._next_run_at = next_run_at
self.run_every = timedelta(seconds=1)
def is_due(self, last_run_at):
return self._is_due, self._next_run_at
always_due = mocked_schedule(True, 1)
always_pending = mocked_schedule(False, 1)
class test_Scheduler(Case):
def test_custom_schedule_dict(self):
custom = {"foo": "bar"}
scheduler = mScheduler(schedule=custom, lazy=True)
self.assertIs(scheduler.data, custom)
def test_apply_async_uses_registered_task_instances(self):
through_task = [False]
class MockTask(Task):
@classmethod
def apply_async(cls, *args, **kwargs):
through_task[0] = True
assert MockTask.name in registry.tasks
scheduler = mScheduler()
scheduler.apply_async(scheduler.Entry(task=MockTask.name))
self.assertTrue(through_task[0])
def test_info(self):
scheduler = mScheduler()
self.assertIsInstance(scheduler.info, basestring)
def test_due_tick(self):
scheduler = mScheduler()
scheduler.add(name="test_due_tick",
schedule=always_due,
args=(1, 2),
kwargs={"foo": "bar"})
self.assertEqual(scheduler.tick(), 1)
def test_due_tick_SchedulingError(self):
scheduler = mSchedulerSchedulingError()
scheduler.add(name="test_due_tick_SchedulingError",
schedule=always_due)
self.assertEqual(scheduler.tick(), 1)
self.assertTrue(scheduler.logger.logged[0])
level, msg, args, kwargs = scheduler.logger.logged[0]
self.assertEqual(level, logging.ERROR)
self.assertIn("Couldn't apply scheduled task", args[0].args[0])
def test_due_tick_RuntimeError(self):
scheduler = mSchedulerRuntimeError()
scheduler.add(name="test_due_tick_RuntimeError",
schedule=always_due)
self.assertEqual(scheduler.tick(), scheduler.max_interval)
def test_pending_tick(self):
scheduler = mScheduler()
scheduler.add(name="test_pending_tick",
schedule=always_pending)
self.assertEqual(scheduler.tick(), 1)
def test_honors_max_interval(self):
scheduler = mScheduler()
maxi = scheduler.max_interval
scheduler.add(name="test_honors_max_interval",
schedule=mocked_schedule(False, maxi * 4))
self.assertEqual(scheduler.tick(), maxi)
def test_ticks(self):
scheduler = mScheduler()
nums = [600, 300, 650, 120, 250, 36]
s = dict(("test_ticks%s" % i,
{"schedule": mocked_schedule(False, j)})
for i, j in enumerate(nums))
scheduler.update_from_dict(s)
self.assertEqual(scheduler.tick(), min(nums))
def test_schedule_no_remain(self):
scheduler = mScheduler()
scheduler.add(name="test_schedule_no_remain",
schedule=mocked_schedule(False, None))
self.assertEqual(scheduler.tick(), scheduler.max_interval)
def test_interface(self):
scheduler = mScheduler()
scheduler.sync()
scheduler.setup_schedule()
scheduler.close()
def test_merge_inplace(self):
a = mScheduler()
b = mScheduler()
a.update_from_dict({"foo": {"schedule": mocked_schedule(True, 10)},
"bar": {"schedule": mocked_schedule(True, 20)}})
b.update_from_dict({"bar": {"schedule": mocked_schedule(True, 40)},
"baz": {"schedule": mocked_schedule(True, 10)}})
a.merge_inplace(b.schedule)
self.assertNotIn("foo", a.schedule)
self.assertIn("baz", a.schedule)
self.assertEqual(a.schedule["bar"].schedule._next_run_at, 40)
class test_Service(Case):
def get_service(self):
sh = MockShelve()
class PersistentScheduler(beat.PersistentScheduler):
persistence = Object()
persistence.open = lambda *a, **kw: sh
tick_raises_exit = False
shutdown_service = None
def tick(self):
if self.tick_raises_exit:
raise SystemExit()
if self.shutdown_service:
self.shutdown_service._is_shutdown.set()
return 0.0
return beat.Service(scheduler_cls=PersistentScheduler), sh
def test_start(self):
s, sh = self.get_service()
schedule = s.scheduler.schedule
self.assertIsInstance(schedule, dict)
self.assertIsInstance(s.scheduler, beat.Scheduler)
scheduled = schedule.keys()
for task_name in sh["entries"].keys():
self.assertIn(task_name, scheduled)
s.sync()
self.assertTrue(sh.closed)
self.assertTrue(sh.synced)
self.assertTrue(s._is_stopped.isSet())
s.sync()
s.stop(wait=False)
self.assertTrue(s._is_shutdown.isSet())
s.stop(wait=True)
self.assertTrue(s._is_shutdown.isSet())
p = s.scheduler._store
s.scheduler._store = None
try:
s.scheduler.sync()
finally:
s.scheduler._store = p
def test_start_embedded_process(self):
s, sh = self.get_service()
s._is_shutdown.set()
s.start(embedded_process=True)
def test_start_thread(self):
s, sh = self.get_service()
s._is_shutdown.set()
s.start(embedded_process=False)
def test_start_tick_raises_exit_error(self):
s, sh = self.get_service()
s.scheduler.tick_raises_exit = True
s.start()
self.assertTrue(s._is_shutdown.isSet())
def test_start_manages_one_tick_before_shutdown(self):
s, sh = self.get_service()
s.scheduler.shutdown_service = s
s.start()
self.assertTrue(s._is_shutdown.isSet())
class test_EmbeddedService(Case):
def test_start_stop_process(self):
try:
from multiprocessing import Process
except ImportError:
raise SkipTest("multiprocessing not available")
s = beat.EmbeddedService()
self.assertIsInstance(s, Process)
self.assertIsInstance(s.service, beat.Service)
s.service = MockService()
class _Popen(object):
terminated = False
def terminate(self):
self.terminated = True
s.run()
self.assertTrue(s.service.started)
s._popen = _Popen()
s.stop()
self.assertTrue(s.service.stopped)
self.assertTrue(s._popen.terminated)
def test_start_stop_threaded(self):
s = beat.EmbeddedService(thread=True)
from threading import Thread
self.assertIsInstance(s, Thread)
self.assertIsInstance(s.service, beat.Service)
s.service = MockService()
s.run()
self.assertTrue(s.service.started)
s.stop()
self.assertTrue(s.service.stopped)