def test_work_is_unreadable(self):
"""Unreadable jobs are put on the failed queue."""
q = Queue()
failed_q = get_failed_queue()
self.assertEquals(failed_q.count, 0)
self.assertEquals(q.count, 0)
# NOTE: We have to fake this enqueueing for this test case.
# What we're simulating here is a call to a function that is not
# importable from the worker process.
job = Job.create(func=div_by_zero, args=(3, ))
job.save()
data = self.testconn.hget(job.key, 'data')
invalid_data = data.replace(b'div_by_zero', b'nonexisting')
assert data != invalid_data
self.testconn.hset(job.key, 'data', invalid_data)
# We use the low-level internal function to enqueue any data (bypassing
# validity checks)
q.push_job_id(job.id)
self.assertEquals(q.count, 1)
# All set, we're going to process it
w = Worker([q])
w.work(burst=True) # should silently pass
self.assertEquals(q.count, 0)
self.assertEquals(failed_q.count, 1)
def test_work_fails(self):
"""Failing jobs are put on the failed queue."""
q = Queue()
failed_q = get_failed_queue()
# Preconditions
self.assertEquals(failed_q.count, 0)
self.assertEquals(q.count, 0)
# Action
job = q.enqueue(div_by_zero)
self.assertEquals(q.count, 1)
# keep for later
enqueued_at_date = strip_microseconds(job.enqueued_at)
w = Worker([q])
w.work(burst=True) # should silently pass
# Postconditions
self.assertEquals(q.count, 0)
self.assertEquals(failed_q.count, 1)
# Check the job
job = Job.fetch(job.id)
self.assertEquals(job.origin, q.name)
# Should be the original enqueued_at date, not the date of enqueueing
# to the failed queue
self.assertEquals(job.enqueued_at, enqueued_at_date)
self.assertIsNotNone(job.exc_info) # should contain exc_info
def test_worker_ttl(self):
"""Worker ttl."""
w = Worker([])
w.register_birth() # ugly: our test should only call public APIs
[worker_key] = self.testconn.smembers(Worker.redis_workers_keys)
self.assertIsNotNone(self.testconn.ttl(worker_key))
w.register_death()
def test_worker_sets_job_status(self):
"""Ensure that worker correctly sets job status."""
q = Queue()
w = Worker([q])
job = q.enqueue(say_hello)
self.assertEqual(job.get_status(), Status.QUEUED)
self.assertEqual(job.is_queued, True)
self.assertEqual(job.is_finished, False)
self.assertEqual(job.is_failed, False)
w.work(burst=True)
job = Job.fetch(job.id)
self.assertEqual(job.get_status(), Status.FINISHED)
self.assertEqual(job.is_queued, False)
self.assertEqual(job.is_finished, True)
self.assertEqual(job.is_failed, False)
# Failed jobs should set status to "failed"
job = q.enqueue(div_by_zero, args=(1, ))
w.work(burst=True)
job = Job.fetch(job.id)
self.assertEqual(job.get_status(), Status.FAILED)
self.assertEqual(job.is_queued, False)
self.assertEqual(job.is_finished, False)
self.assertEqual(job.is_failed, True)
def test_timeouts(self):
"""Worker kills jobs after timeout."""
sentinel_file = '/tmp/.rq_sentinel'
q = Queue()
w = Worker([q])
# Put it on the queue with a timeout value
res = q.enqueue(create_file_after_timeout,
args=(sentinel_file, 4),
timeout=1)
try:
os.unlink(sentinel_file)
except OSError as e:
if e.errno == 2:
pass
self.assertEquals(os.path.exists(sentinel_file), False)
w.work(burst=True)
self.assertEquals(os.path.exists(sentinel_file), False)
# TODO: Having to do the manual refresh() here is really ugly!
res.refresh()
self.assertIn('JobTimeoutException', as_text(res.exc_info))
def test_custom_exc_handling(self):
"""Custom exception handling."""
def black_hole(job, *exc_info):
# Don't fall through to default behaviour (moving to failed queue)
return False
q = Queue()
failed_q = get_failed_queue()
# Preconditions
self.assertEquals(failed_q.count, 0)
self.assertEquals(q.count, 0)
# Action
job = q.enqueue(div_by_zero)
self.assertEquals(q.count, 1)
w = Worker([q], exc_handler=black_hole)
w.work(burst=True) # should silently pass
# Postconditions
self.assertEquals(q.count, 0)
self.assertEquals(failed_q.count, 0)
# Check the job
job = Job.fetch(job.id)
self.assertEquals(job.is_failed, True)
def test_work_via_string_argument(self):
"""Worker processes work fed via string arguments."""
q = Queue('foo')
w = Worker([q])
job = q.enqueue('tests.fixtures.say_hello', name='Frank')
self.assertEquals(w.work(burst=True), True,
'Expected at least some work done.')
self.assertEquals(job.result, 'Hi there, Frank!')
def test_work_and_quit(self):
"""Worker processes work, then quits."""
fooq, barq = Queue('foo'), Queue('bar')
w = Worker([fooq, barq])
self.assertEquals(w.work(burst=True), False,
'Did not expect any work on the queue.')
fooq.enqueue(say_hello, name='Frank')
self.assertEquals(w.work(burst=True), True,
'Expected at least some work done.')
def test_worker_sets_result_ttl(self):
"""Ensure that Worker properly sets result_ttl for individual jobs."""
q = Queue()
job = q.enqueue(say_hello, args=('Frank', ), result_ttl=10)
w = Worker([q])
w.work(burst=True)
self.assertNotEqual(self.testconn._ttl(job.key), 0)
# Job with -1 result_ttl don't expire
job = q.enqueue(say_hello, args=('Frank', ), result_ttl=-1)
w = Worker([q])
w.work(burst=True)
self.assertEqual(self.testconn._ttl(job.key), -1)
# Job with result_ttl = 0 gets deleted immediately
job = q.enqueue(say_hello, args=('Frank', ), result_ttl=0)
w = Worker([q])
w.work(burst=True)
self.assertEqual(self.testconn.get(job.key), None)
def test_get_current_job(self):
"""Ensure worker.get_current_job() works properly"""
q = Queue()
worker = Worker([q])
job = q.enqueue_call(say_hello)
self.assertEqual(self.testconn.hget(worker.key, 'current_job'), None)
worker.set_current_job_id(job.id)
self.assertEqual(
worker.get_current_job_id(),
as_text(self.testconn.hget(worker.key, 'current_job')))
self.assertEqual(worker.get_current_job(), job)
def test_job_dependency(self):
"""Enqueue dependent jobs only if their parents don't fail"""
q = Queue()
w = Worker([q])
parent_job = q.enqueue(say_hello)
job = q.enqueue_call(say_hello, depends_on=parent_job)
w.work(burst=True)
job = Job.fetch(job.id)
self.assertEqual(job.get_status(), Status.FINISHED)
parent_job = q.enqueue(div_by_zero)
job = q.enqueue_call(say_hello, depends_on=parent_job)
w.work(burst=True)
job = Job.fetch(job.id)
self.assertNotEqual(job.get_status(), Status.FINISHED)
def test_cancelled_jobs_arent_executed(self): # noqa
"""Cancelling jobs."""
SENTINEL_FILE = '/tmp/rq-tests.txt'
try:
# Remove the sentinel if it is leftover from a previous test run
os.remove(SENTINEL_FILE)
except OSError as e:
if e.errno != 2:
raise
q = Queue()
job = q.enqueue(create_file, SENTINEL_FILE)
# Here, we cancel the job, so the sentinel file may not be created
self.testconn.delete(job.key)
w = Worker([q])
w.work(burst=True)
assert q.count == 0
# Should not have created evidence of execution
self.assertEquals(os.path.exists(SENTINEL_FILE), False)
def test_create_worker(self):
"""Worker creation."""
fooq, barq = Queue('foo'), Queue('bar')
w = Worker([fooq, barq])
self.assertEquals(w.queues, [fooq, barq])
