class TestScheduler(RQTestCase):
def setUp(self):
super(TestScheduler, self).setUp()
self.scheduler = Scheduler(connection=self.testconn)
def test_acquire_lock(self):
"""
When scheduler acquires a lock, besides creating a key, it should
also set an expiry that's a few seconds longer than it's polling
interval so it automatically expires if scheduler is unexpectedly
terminated.
"""
key = '%s_lock' % Scheduler.scheduler_key
self.assertNotIn(key, tl(self.testconn.keys('*')))
scheduler = Scheduler(connection=self.testconn, interval=20)
self.assertTrue(scheduler.acquire_lock())
self.assertIn(key, tl(self.testconn.keys('*')))
self.assertEqual(self.testconn.ttl(key), 30)
scheduler.remove_lock()
self.assertNotIn(key, tl(self.testconn.keys('*')))
def test_no_two_schedulers_acquire_lock(self):
"""
Ensure that no two schedulers can acquire the lock at the
same time. When removing the lock, only the scheduler which
originally acquired the lock can remove the lock.
"""
key = '%s_lock' % Scheduler.scheduler_key
self.assertNotIn(key, tl(self.testconn.keys('*')))
scheduler1 = Scheduler(connection=self.testconn, interval=20)
scheduler2 = Scheduler(connection=self.testconn, interval=20)
self.assertTrue(scheduler1.acquire_lock())
self.assertFalse(scheduler2.acquire_lock())
self.assertIn(key, tl(self.testconn.keys('*')))
scheduler2.remove_lock()
self.assertIn(key, tl(self.testconn.keys('*')))
scheduler1.remove_lock()
self.assertNotIn(key, tl(self.testconn.keys('*')))
def test_create_job(self):
"""
Ensure that jobs are created properly.
"""
job = self.scheduler._create_job(say_hello, args=(), kwargs={})
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job, job_from_queue)
self.assertEqual(job_from_queue.func, say_hello)
def test_create_job_with_ttl(self):
"""
Ensure that TTL is passed to RQ.
"""
job = self.scheduler._create_job(say_hello, ttl=2, args=(), kwargs={})
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(2, job_from_queue.ttl)
def test_create_job_with_id(self):
"""
Ensure that ID is passed to RQ.
"""
job = self.scheduler._create_job(say_hello, id='id test', args=(), kwargs={})
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual('id test', job_from_queue.id)
def test_create_job_with_description(self):
"""
Ensure that description is passed to RQ.
"""
job = self.scheduler._create_job(say_hello, description='description', args=(), kwargs={})
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual('description', job_from_queue.description)
def test_create_job_with_timeout(self):
"""
Ensure that timeout is passed to RQ.
"""
timeout = 13
job = self.scheduler._create_job(say_hello, timeout=13, args=(), kwargs={})
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(timeout, job_from_queue.timeout)
def test_job_not_persisted_if_commit_false(self):
"""
Ensure jobs are only saved to Redis if commit=True.
"""
job = self.scheduler._create_job(say_hello, commit=False)
self.assertEqual(self.testconn.hgetall(job.key), {})
def test_create_scheduled_job(self):
"""
Ensure that scheduled jobs are put in the scheduler queue with the right score
"""
scheduled_time = datetime.utcnow()
job = self.scheduler.enqueue_at(scheduled_time, say_hello)
self.assertEqual(job, Job.fetch(job.id, connection=self.testconn))
self.assertIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
self.assertEqual(self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id),
to_unix(scheduled_time))
def test_enqueue_at_sets_timeout(self):
"""
Ensure that a job scheduled via enqueue_at can be created with
a custom timeout.
"""
timeout = 13
job = self.scheduler.enqueue_at(datetime.utcnow(), say_hello, timeout=timeout)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job_from_queue.timeout, timeout)
def test_enqueue_at_sets_job_id(self):
"""
Ensure that a job scheduled via enqueue_at can be created with
a custom job id.
"""
job_id = 'test_id'
job = self.scheduler.enqueue_at(datetime.utcnow(), say_hello, job_id=job_id)
self.assertEqual(job.id, job_id)
def test_enqueue_in(self):
"""
Ensure that jobs have the right scheduled time.
"""
right_now = datetime.utcnow()
time_delta = timedelta(minutes=1)
job = self.scheduler.enqueue_in(time_delta, say_hello)
self.assertIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
self.assertEqual(self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id),
to_unix(right_now + time_delta))
time_delta = timedelta(hours=1)
job = self.scheduler.enqueue_in(time_delta, say_hello)
self.assertEqual(self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id),
to_unix(right_now + time_delta))
def test_fetch_job(self):
"""
Ensure fetch_job() returns the job with the specified job id.
"""
job1 = self.scheduler._create_job(say_hello, id='the job we want')
job2 = self.scheduler._create_job(say_hello, id='the job we don\'t want')
job_from_queue = self.scheduler.fetch_job(job1.id)
self.scheduler.fetch_job(job2.id)
self.assertEqual('the job we want', job_from_queue.id)
no_job = self.scheduler.fetch_job('non-existing-job-id')
self.assertEqual(no_job, None)
sched_date = datetime.utcnow() + timedelta(minutes=1)
job_with_time = self.scheduler.schedule(sched_date, say_hello, id='magical scheduler')
job_from_queue, date_from_queue = self.scheduler.fetch_job(job_with_time.id, with_time=True)
self.assertEqual('magical scheduler', job_from_queue.id)
# The redis scores are floats which gives a little bit of imprecision
# in the returned dates
self.assertTrue(
sched_date - date_from_queue < timedelta(seconds=2) and \
sched_date - date_from_queue > timedelta(seconds=-2)
)
no_job2, no_time = self.scheduler.fetch_job('non-existing-job-id', with_time=True)
self.assertEqual(no_job2, None)
self.assertEqual(no_time, None)
def test_enqueue_in_sets_timeout(self):
"""
Ensure that a job scheduled via enqueue_in can be created with
a custom timeout.
"""
timeout = 13
job = self.scheduler.enqueue_in(timedelta(minutes=1), say_hello, timeout=timeout)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job_from_queue.timeout, timeout)
def test_enqueue_in_sets_job_id(self):
"""
Ensure that a job scheduled via enqueue_in can be created with
a custom job id.
"""
job_id = 'test_id'
job = self.scheduler.enqueue_in(timedelta(minutes=1), say_hello, job_id=job_id)
self.assertEqual(job.id, job_id)
def test_count(self):
now = datetime.utcnow()
self.scheduler.enqueue_at(now, say_hello)
self.assertEqual(self.scheduler.count(), 1)
future_time = now + timedelta(hours=1)
future_test_time = now + timedelta(minutes=59, seconds=59)
self.scheduler.enqueue_at(future_time, say_hello)
self.assertEqual(self.scheduler.count(timedelta(minutes=59, seconds=59)), 1)
self.assertEqual(self.scheduler.count(future_test_time), 1)
self.assertEqual(self.scheduler.count(), 2)
def test_get_jobs(self):
"""
Ensure get_jobs() returns all jobs until the specified time.
"""
now = datetime.utcnow()
job = self.scheduler.enqueue_at(now, say_hello)
self.assertIn(job, self.scheduler.get_jobs(now))
future_time = now + timedelta(hours=1)
job = self.scheduler.enqueue_at(future_time, say_hello)
self.assertIn(job, self.scheduler.get_jobs(timedelta(hours=1, seconds=1)))
self.assertIn(job, [j[0] for j in self.scheduler.get_jobs(with_times=True)])
self.assertIsInstance(self.scheduler.get_jobs(with_times=True)[0][1], datetime)
self.assertNotIn(job, self.scheduler.get_jobs(timedelta(minutes=59, seconds=59)))
def test_get_jobs_slice(self):
"""
Ensure get_jobs() returns the appropriate slice of all jobs using offset and length.
"""
now = datetime.utcnow()
future_time = now + timedelta(hours=1)
future_test_time = now + timedelta(minutes=59, seconds=59)
# Schedule each job a second later than the previous job,
# otherwise Redis will return jobs that have the same scheduled time in
# lexicographical order (not the order in which we enqueued them)
now_jobs = [self.scheduler.enqueue_at(now + timedelta(seconds=x), say_hello)
for x in range(15)]
future_jobs = [self.scheduler.enqueue_at(future_time + timedelta(seconds=x), say_hello)
for x in range(15)]
expected_slice = now_jobs[5:] + future_jobs[:10] # last 10 from now_jobs and first 10 from future_jobs
expected_until_slice = now_jobs[5:] # last 10 from now_jobs
jobs = self.scheduler.get_jobs()
jobs_slice = self.scheduler.get_jobs(offset=5, length=20)
jobs_until_slice = self.scheduler.get_jobs(future_test_time, offset=5, length=20)
self.assertEqual(now_jobs + future_jobs, jobs)
self.assertEqual(expected_slice, jobs_slice)
self.assertEqual(expected_until_slice, jobs_until_slice)
def test_get_jobs_to_queue(self):
"""
Ensure that jobs scheduled the future are not queued.
"""
now = datetime.utcnow()
job = self.scheduler.enqueue_at(now, say_hello)
self.assertIn(job, self.scheduler.get_jobs_to_queue())
future_time = now + timedelta(hours=1)
job = self.scheduler.enqueue_at(future_time, say_hello)
self.assertNotIn(job, self.scheduler.get_jobs_to_queue())
def test_enqueue_job(self):
"""
When scheduled job is enqueued, make sure:
- Job is removed from the sorted set of scheduled jobs
- "enqueued_at" attribute is properly set
- Job appears in the right queue
- Queue is recognized by rq's Queue.all()
"""
now = datetime.utcnow()
queue_name = 'foo'
scheduler = Scheduler(connection=self.testconn, queue_name=queue_name)
job = scheduler.enqueue_at(now, say_hello)
self.scheduler.enqueue_job(job)
self.assertNotIn(job, tl(self.testconn.zrange(scheduler.scheduled_jobs_key, 0, 10)))
job = Job.fetch(job.id, connection=self.testconn)
self.assertTrue(job.enqueued_at is not None)
queue = scheduler.get_queue_for_job(job)
self.assertIn(job, queue.jobs)
queue = Queue.from_queue_key('rq:queue:{0}'.format(queue_name))
self.assertIn(job, queue.jobs)
self.assertIn(queue, Queue.all())
def test_enqueue_job_with_queue(self):
"""
Ensure that job is enqueued correctly when the scheduler is bound
to a queue object.
"""
queue = Queue('foo', connection=self.testconn)
scheduler = Scheduler(connection=self.testconn, queue=queue)
job = scheduler._create_job(say_hello)
scheduler_queue = scheduler.get_queue_for_job(job)
self.assertEqual(queue, scheduler_queue)
scheduler.enqueue_job(job)
self.assertTrue(job.enqueued_at is not None)
self.assertIn(job, queue.jobs)
self.assertIn(queue, Queue.all())
def test_job_membership(self):
now = datetime.utcnow()
job = self.scheduler.enqueue_at(now, say_hello)
self.assertIn(job, self.scheduler)
self.assertIn(job.id, self.scheduler)
self.assertNotIn("non-existing-job-id", self.scheduler)
def test_cancel_scheduled_job(self):
"""
When scheduled job is canceled, make sure:
- Job is removed from the sorted set of scheduled jobs
"""
# schedule a job to be enqueued one minute from now
time_delta = timedelta(minutes=1)
job = self.scheduler.enqueue_in(time_delta, say_hello)
# cancel the scheduled job and check that it's gone from the set
self.scheduler.cancel(job)
self.assertNotIn(job.id, tl(self.testconn.zrange(
self.scheduler.scheduled_jobs_key, 0, 1)))
# assertRaises isn't a context manager in Python 2.6 :(
# See: http://stackoverflow.com/a/9599863/118608
self.assertRaises(NoSuchJobError, lambda: Job.fetch(job.id))
def test_change_execution_time(self):
"""
Ensure ``change_execution_time`` is called, ensure that job's score is updated
"""
job = self.scheduler.enqueue_at(datetime.utcnow(), say_hello)
new_date = datetime(2010, 1, 1)
self.scheduler.change_execution_time(job, new_date)
self.assertEqual(to_unix(new_date),
self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id))
self.scheduler.cancel(job)
self.assertRaises(ValueError, self.scheduler.change_execution_time, job, new_date)
def test_args_kwargs_are_passed_correctly(self):
"""
Ensure that arguments and keyword arguments are properly saved to jobs.
"""
job = self.scheduler.enqueue_at(datetime.utcnow(), simple_addition, 1, 1, 1)
self.assertEqual(job.args, (1, 1, 1))
job = self.scheduler.enqueue_at(datetime.utcnow(), simple_addition, z=1, y=1, x=1)
self.assertEqual(job.kwargs, {'x': 1, 'y': 1, 'z': 1})
job = self.scheduler.enqueue_at(datetime.utcnow(), simple_addition, 1, z=1, y=1)
self.assertEqual(job.kwargs, {'y': 1, 'z': 1})
self.assertEqual(job.args, (1,))
time_delta = timedelta(minutes=1)
job = self.scheduler.enqueue_in(time_delta, simple_addition, 1, 1, 1)
self.assertEqual(job.args, (1, 1, 1))
job = self.scheduler.enqueue_in(time_delta, simple_addition, z=1, y=1, x=1)
self.assertEqual(job.kwargs, {'x': 1, 'y': 1, 'z': 1})
job = self.scheduler.enqueue_in(time_delta, simple_addition, 1, z=1, y=1)
self.assertEqual(job.kwargs, {'y': 1, 'z': 1})
self.assertEqual(job.args, (1,))
def test_interval_and_repeat_persisted_correctly(self):
"""
Ensure that interval and repeat attributes are correctly saved.
"""
job = self.scheduler.schedule(datetime.utcnow(), say_hello, interval=10, repeat=11)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job_from_queue.meta['interval'], 10)
self.assertEqual(job_from_queue.meta['repeat'], 11)
def test_crontab_persisted_correctly(self):
"""
Ensure that crontab attribute gets correctly saved in Redis.
"""
# create a job that runs one minute past each whole hour
job = self.scheduler.cron("1 * * * *", say_hello)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job_from_queue.meta['cron_string'], "1 * * * *")
# get the scheduled_time and convert it to a datetime object
unix_time = self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id)
datetime_time = from_unix(unix_time)
# check that minute=1, seconds=0, and is within an hour
assert datetime_time.minute == 1
assert datetime_time.second == 0
assert datetime_time - datetime.utcnow() < timedelta(hours=1)
def test_crontab_sets_timeout(self):
"""
Ensure that a job scheduled via crontab can be created with
a custom timeout.
"""
timeout = 13
job = self.scheduler.cron("1 * * * *", say_hello, timeout=timeout)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job_from_queue.timeout, timeout)
def test_crontab_sets_id(self):
"""
Ensure that a job scheduled via crontab can be created with
a custom id
"""
job_id = "hello-job-id"
job = self.scheduler.cron("1 * * * *", say_hello, id=job_id)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job_id, job_from_queue.id)
def test_crontab_sets_default_result_ttl(self):
"""
Ensure that a job scheduled via crontab gets proper default
result_ttl (-1) periodic tasks.
"""
job = self.scheduler.cron("1 * * * *", say_hello)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(-1, job_from_queue.result_ttl)
def test_crontab_sets_description(self):
"""
Ensure that a job scheduled via crontab can be created with
a custom description
"""
description = 'test description'
job = self.scheduler.cron("1 * * * *", say_hello, description=description)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(description, job_from_queue.description)
def test_repeat_without_interval_raises_error(self):
# Ensure that an error is raised if repeat is specified without interval
def create_job():
self.scheduler.schedule(datetime.utcnow(), say_hello, repeat=11)
self.assertRaises(ValueError, create_job)
def test_job_with_intervals_get_rescheduled(self):
"""
Ensure jobs with interval attribute are put back in the scheduler
"""
time_now = datetime.utcnow()
interval = 10
job = self.scheduler.schedule(time_now, say_hello, interval=interval)
self.scheduler.enqueue_job(job)
self.assertIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
self.assertEqual(self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id),
to_unix(time_now) + interval)
def test_job_with_crontab_get_rescheduled(self):
# Create a job with a cronjob_string
job = self.scheduler.cron("1 * * * *", say_hello)
# current unix_time
old_next_scheduled_time = self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id)
# change crontab
job.meta['cron_string'] = "2 * * * *"
# enqueue the job
self.scheduler.enqueue_job(job)
self.assertIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
# check that next scheduled time has changed
self.assertNotEqual(old_next_scheduled_time,
self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id))
# check that new next scheduled time is set correctly
expected_next_scheduled_time = to_unix(get_next_scheduled_time("2 * * * *"))
self.assertEqual(self.testconn.zscore(self.scheduler.scheduled_jobs_key, job.id),
expected_next_scheduled_time)
def test_job_with_repeat(self):
"""
Ensure jobs with repeat attribute are put back in the scheduler
X (repeat) number of times
"""
time_now = datetime.utcnow()
interval = 10
# If job is repeated once, the job shouldn't be put back in the queue
job = self.scheduler.schedule(time_now, say_hello, interval=interval, repeat=1)
self.scheduler.enqueue_job(job)
self.assertNotIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
# If job is repeated twice, it should only be put back in the queue once
job = self.scheduler.schedule(time_now, say_hello, interval=interval, repeat=2)
self.scheduler.enqueue_job(job)
self.assertIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
self.scheduler.enqueue_job(job)
self.assertNotIn(job.id,
tl(self.testconn.zrange(self.scheduler.scheduled_jobs_key, 0, 1)))
def test_missing_jobs_removed_from_scheduler(self):
"""
Ensure jobs that don't exist when queued are removed from the scheduler.
"""
job = self.scheduler.schedule(datetime.utcnow(), say_hello)
job.cancel()
self.scheduler.get_jobs_to_queue()
self.assertIn(job.id, tl(self.testconn.zrange(
self.scheduler.scheduled_jobs_key, 0, 1)))
job.delete()
self.scheduler.get_jobs_to_queue()
self.assertNotIn(job.id, tl(self.testconn.zrange(
self.scheduler.scheduled_jobs_key, 0, 1)))
def test_periodic_jobs_sets_result_ttl(self):
"""
Ensure periodic jobs set result_ttl to infinite.
"""
job = self.scheduler.schedule(datetime.utcnow(), say_hello, interval=5)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job.result_ttl, -1)
def test_periodic_jobs_sets_ttl(self):
"""
Ensure periodic jobs sets correctly ttl.
"""
job = self.scheduler.schedule(datetime.utcnow(), say_hello, interval=5, ttl=4)
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job.ttl, 4)
def test_periodic_job_sets_id(self):
"""
Ensure that ID is passed to RQ by schedule.
"""
job = self.scheduler.schedule(datetime.utcnow(), say_hello, interval=5, id='id test')
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual('id test', job.id)
def test_periodic_job_sets_description(self):
"""
Ensure that description is passed to RQ by schedule.
"""
job = self.scheduler.schedule(datetime.utcnow(), say_hello, interval=5, description='description')
job_from_queue = Job.fetch(job.id, connection=self.testconn)
self.assertEqual('description', job.description)
def test_run(self):
"""
Check correct signal handling in Scheduler.run().
"""
def send_stop_signal():
"""
Sleep for 1 second, then send a INT signal to ourself, so the
signal handler installed by scheduler.run() is called.
"""
time.sleep(1)
os.kill(os.getpid(), signal.SIGINT)
thread = Thread(target=send_stop_signal)
thread.start()
self.assertRaises(SystemExit, self.scheduler.run)
thread.join()
def test_run_burst(self):
"""
Check burst mode of Scheduler.run().
"""
now = datetime.utcnow()
job = self.scheduler.enqueue_at(now, say_hello)
self.assertIn(job, self.scheduler.get_jobs_to_queue())
self.assertEqual(len(self.scheduler.get_jobs()), 1)
self.scheduler.run(burst=True)
self.assertEqual(len(self.scheduler.get_jobs()), 0)
def test_scheduler_w_o_explicit_connection(self):
"""
Ensure instantiating Scheduler w/o explicit connection works.
"""
s = Scheduler()
self.assertEqual(s.connection, self.testconn)
def test_small_float_interval(self):
"""
Test that scheduler accepts 'interval' of type float, less than 1 second.
"""
key = Scheduler.scheduler_key
lock_key = '%s_lock' % Scheduler.scheduler_key
self.assertNotIn(key, tl(self.testconn.keys('*')))
scheduler = Scheduler(connection=self.testconn, interval=0.1) # testing interval = 0.1 second
self.assertEqual(scheduler._interval, 0.1)
#acquire lock
self.assertTrue(scheduler.acquire_lock())
self.assertIn(lock_key, tl(self.testconn.keys('*')))
self.assertEqual(self.testconn.ttl(lock_key), 10) # int(0.1) + 10 = 10
#enqueue a job
now = datetime.utcnow()
job = scheduler.enqueue_at(now, say_hello)
self.assertIn(job, self.scheduler.get_jobs_to_queue())
self.assertEqual(len(self.scheduler.get_jobs()), 1)
#remove the lock
scheduler.remove_lock()
#test that run works with the small floating-point interval
def send_stop_signal():
"""
Sleep for 1 second, then send a INT signal to ourself, so the
signal handler installed by scheduler.run() is called.
"""
time.sleep(1)
os.kill(os.getpid(), signal.SIGINT)
thread = Thread(target=send_stop_signal)
thread.start()
self.assertRaises(SystemExit, scheduler.run)
thread.join()
#all jobs must have been scheduled during 1 second
self.assertEqual(len(scheduler.get_jobs()), 0)
