rq/tests/test_job.py

425 lines
16 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import (absolute_import, division, print_function,
unicode_literals)
from datetime import datetime
import time
from tests import RQTestCase
from tests.helpers import strip_microseconds
from rq.compat import PY2, as_text
from rq.exceptions import NoSuchJobError, UnpickleError
from rq.job import Job, get_current_job
from rq.queue import Queue
from rq.registry import DeferredJobRegistry
from rq.utils import utcformat
from rq.worker import Worker
from . import fixtures
try:
from cPickle import loads, dumps
except ImportError:
from pickle import loads, dumps
class TestJob(RQTestCase):
def test_unicode(self):
"""Unicode in job description [issue405]"""
job = Job.create(
'myfunc',
args=[12, ""],
kwargs=dict(snowman="", null=None),
)
if not PY2:
# Python 3
test_string = "myfunc(12, '', null=None, snowman='')"
else:
# Python 2
test_string = u"myfunc(12, u'\\u2603', null=None, snowman=u'\\u2603')".decode('utf-8')
self.assertEquals(
job.description,
test_string,
)
def test_create_empty_job(self):
"""Creation of new empty jobs."""
job = Job()
# Jobs have a random UUID and a creation date
self.assertIsNotNone(job.id)
self.assertIsNotNone(job.created_at)
# ...and nothing else
self.assertIsNone(job.origin)
self.assertIsNone(job.enqueued_at)
self.assertIsNone(job.ended_at)
self.assertIsNone(job.result)
self.assertIsNone(job.exc_info)
with self.assertRaises(ValueError):
job.func
with self.assertRaises(ValueError):
job.instance
with self.assertRaises(ValueError):
job.args
with self.assertRaises(ValueError):
job.kwargs
def test_create_typical_job(self):
"""Creation of jobs for function calls."""
job = Job.create(func=fixtures.some_calculation, args=(3, 4), kwargs=dict(z=2))
# Jobs have a random UUID
self.assertIsNotNone(job.id)
self.assertIsNotNone(job.created_at)
self.assertIsNotNone(job.description)
self.assertIsNone(job.instance)
# Job data is set...
self.assertEquals(job.func, fixtures.some_calculation)
self.assertEquals(job.args, (3, 4))
self.assertEquals(job.kwargs, {'z': 2})
# ...but metadata is not
self.assertIsNone(job.origin)
self.assertIsNone(job.enqueued_at)
self.assertIsNone(job.result)
def test_create_instance_method_job(self):
"""Creation of jobs for instance methods."""
n = fixtures.Number(2)
job = Job.create(func=n.div, args=(4,))
# Job data is set
self.assertEquals(job.func, n.div)
self.assertEquals(job.instance, n)
self.assertEquals(job.args, (4,))
def test_create_job_from_string_function(self):
"""Creation of jobs using string specifier."""
job = Job.create(func='tests.fixtures.say_hello', args=('World',))
# Job data is set
self.assertEquals(job.func, fixtures.say_hello)
self.assertIsNone(job.instance)
self.assertEquals(job.args, ('World',))
def test_create_job_from_callable_class(self):
"""Creation of jobs using a callable class specifier."""
kallable = fixtures.CallableObject()
job = Job.create(func=kallable)
self.assertEquals(job.func, kallable.__call__)
self.assertEquals(job.instance, kallable)
def test_job_properties_set_data_property(self):
"""Data property gets derived from the job tuple."""
job = Job()
job.func_name = 'foo'
fname, instance, args, kwargs = loads(job.data)
self.assertEquals(fname, job.func_name)
self.assertEquals(instance, None)
self.assertEquals(args, ())
self.assertEquals(kwargs, {})
def test_data_property_sets_job_properties(self):
"""Job tuple gets derived lazily from data property."""
job = Job()
job.data = dumps(('foo', None, (1, 2, 3), {'bar': 'qux'}))
self.assertEquals(job.func_name, 'foo')
self.assertEquals(job.instance, None)
self.assertEquals(job.args, (1, 2, 3))
self.assertEquals(job.kwargs, {'bar': 'qux'})
def test_save(self): # noqa
"""Storing jobs."""
job = Job.create(func=fixtures.some_calculation, args=(3, 4), kwargs=dict(z=2))
# Saving creates a Redis hash
self.assertEquals(self.testconn.exists(job.key), False)
job.save()
self.assertEquals(self.testconn.type(job.key), b'hash')
# Saving writes pickled job data
unpickled_data = loads(self.testconn.hget(job.key, 'data'))
self.assertEquals(unpickled_data[0], 'tests.fixtures.some_calculation')
def test_fetch(self):
"""Fetching jobs."""
# Prepare test
self.testconn.hset('rq:job:some_id', 'data',
"(S'tests.fixtures.some_calculation'\nN(I3\nI4\nt(dp1\nS'z'\nI2\nstp2\n.")
self.testconn.hset('rq:job:some_id', 'created_at',
'2012-02-07T22:13:24Z')
# Fetch returns a job
job = Job.fetch('some_id')
self.assertEquals(job.id, 'some_id')
self.assertEquals(job.func_name, 'tests.fixtures.some_calculation')
self.assertIsNone(job.instance)
self.assertEquals(job.args, (3, 4))
self.assertEquals(job.kwargs, dict(z=2))
self.assertEquals(job.created_at, datetime(2012, 2, 7, 22, 13, 24))
def test_persistence_of_empty_jobs(self): # noqa
"""Storing empty jobs."""
job = Job()
with self.assertRaises(ValueError):
job.save()
def test_persistence_of_typical_jobs(self):
"""Storing typical jobs."""
job = Job.create(func=fixtures.some_calculation, args=(3, 4), kwargs=dict(z=2))
job.save()
expected_date = strip_microseconds(job.created_at)
stored_date = self.testconn.hget(job.key, 'created_at').decode('utf-8')
self.assertEquals(
stored_date,
utcformat(expected_date))
# ... and no other keys are stored
self.assertEqual(
sorted(self.testconn.hkeys(job.key)),
[b'created_at', b'data', b'description'])
def test_persistence_of_parent_job(self):
"""Storing jobs with parent job, either instance or key."""
parent_job = Job.create(func=fixtures.some_calculation)
parent_job.save()
job = Job.create(func=fixtures.some_calculation, depends_on=parent_job)
job.save()
stored_job = Job.fetch(job.id)
self.assertEqual(stored_job._dependency_id, parent_job.id)
self.assertEqual(stored_job.dependency, parent_job)
job = Job.create(func=fixtures.some_calculation, depends_on=parent_job.id)
job.save()
stored_job = Job.fetch(job.id)
self.assertEqual(stored_job._dependency_id, parent_job.id)
self.assertEqual(stored_job.dependency, parent_job)
def test_store_then_fetch(self):
"""Store, then fetch."""
job = Job.create(func=fixtures.some_calculation, args=(3, 4), kwargs=dict(z=2))
job.save()
job2 = Job.fetch(job.id)
self.assertEquals(job.func, job2.func)
self.assertEquals(job.args, job2.args)
self.assertEquals(job.kwargs, job2.kwargs)
# Mathematical equation
self.assertEquals(job, job2)
def test_fetching_can_fail(self):
"""Fetching fails for non-existing jobs."""
with self.assertRaises(NoSuchJobError):
Job.fetch('b4a44d44-da16-4620-90a6-798e8cd72ca0')
def test_fetching_unreadable_data(self):
"""Fetching succeeds on unreadable data, but lazy props fail."""
# Set up
job = Job.create(func=fixtures.some_calculation, args=(3, 4), kwargs=dict(z=2))
job.save()
# Just replace the data hkey with some random noise
self.testconn.hset(job.key, 'data', 'this is no pickle string')
job.refresh()
for attr in ('func_name', 'instance', 'args', 'kwargs'):
with self.assertRaises(UnpickleError):
getattr(job, attr)
def test_job_is_unimportable(self):
"""Jobs that cannot be imported throw exception on access."""
job = Job.create(func=fixtures.say_hello, args=('Lionel',))
job.save()
# Now slightly modify the job to make it unimportable (this is
# equivalent to a worker not having the most up-to-date source code
# and unable to import the function)
data = self.testconn.hget(job.key, 'data')
unimportable_data = data.replace(b'say_hello', b'nay_hello')
self.testconn.hset(job.key, 'data', unimportable_data)
job.refresh()
with self.assertRaises(AttributeError):
job.func # accessing the func property should fail
def test_custom_meta_is_persisted(self):
"""Additional meta data on jobs are stored persisted correctly."""
job = Job.create(func=fixtures.say_hello, args=('Lionel',))
job.meta['foo'] = 'bar'
job.save()
raw_data = self.testconn.hget(job.key, 'meta')
self.assertEqual(loads(raw_data)['foo'], 'bar')
job2 = Job.fetch(job.id)
self.assertEqual(job2.meta['foo'], 'bar')
def test_result_ttl_is_persisted(self):
"""Ensure that job's result_ttl is set properly"""
job = Job.create(func=fixtures.say_hello, args=('Lionel',), result_ttl=10)
job.save()
Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job.result_ttl, 10)
job = Job.create(func=fixtures.say_hello, args=('Lionel',))
job.save()
Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job.result_ttl, None)
def test_description_is_persisted(self):
"""Ensure that job's custom description is set properly"""
job = Job.create(func=fixtures.say_hello, args=('Lionel',), description='Say hello!')
job.save()
Job.fetch(job.id, connection=self.testconn)
self.assertEqual(job.description, 'Say hello!')
# Ensure job description is constructed from function call string
job = Job.create(func=fixtures.say_hello, args=('Lionel',))
job.save()
Job.fetch(job.id, connection=self.testconn)
if PY2:
self.assertEqual(job.description, "tests.fixtures.say_hello(u'Lionel')")
else:
self.assertEqual(job.description, "tests.fixtures.say_hello('Lionel')")
def test_job_access_outside_job_fails(self):
"""The current job is accessible only within a job context."""
self.assertIsNone(get_current_job())
def test_job_access_within_job_function(self):
"""The current job is accessible within the job function."""
q = Queue()
q.enqueue(fixtures.access_self) # access_self calls get_current_job() and asserts
w = Worker([q])
w.work(burst=True)
def test_job_access_within_synchronous_job_function(self):
queue = Queue(async=False)
queue.enqueue(fixtures.access_self)
def test_get_result_ttl(self):
"""Getting job result TTL."""
job_result_ttl = 1
default_ttl = 2
job = Job.create(func=fixtures.say_hello, result_ttl=job_result_ttl)
job.save()
self.assertEqual(job.get_result_ttl(default_ttl=default_ttl), job_result_ttl)
self.assertEqual(job.get_result_ttl(), job_result_ttl)
job = Job.create(func=fixtures.say_hello)
job.save()
self.assertEqual(job.get_result_ttl(default_ttl=default_ttl), default_ttl)
self.assertEqual(job.get_result_ttl(), None)
def test_get_job_ttl(self):
"""Getting job TTL."""
ttl = 1
job = Job.create(func=fixtures.say_hello, ttl=ttl)
job.save()
self.assertEqual(job.get_ttl(), ttl)
job = Job.create(func=fixtures.say_hello)
job.save()
self.assertEqual(job.get_ttl(), None)
def test_ttl_via_enqueue(self):
ttl = 1
queue = Queue(connection=self.testconn)
job = queue.enqueue(fixtures.say_hello, ttl=ttl)
self.assertEqual(job.get_ttl(), ttl)
def test_never_expire_during_execution(self):
"""Test what happens when job expires during execution"""
ttl = 1
queue = Queue(connection=self.testconn)
job = queue.enqueue(fixtures.long_running_job, args=(2,), ttl=ttl)
self.assertEqual(job.get_ttl(), ttl)
job.save()
job.perform()
self.assertEqual(job.get_ttl(), -1)
self.assertTrue(job.exists(job.id))
self.assertEqual(job.result, 'Done sleeping...')
def test_cleanup(self):
"""Test that jobs and results are expired properly."""
job = Job.create(func=fixtures.say_hello)
job.save()
# Jobs with negative TTLs don't expire
job.cleanup(ttl=-1)
self.assertEqual(self.testconn.ttl(job.key), -1)
# Jobs with positive TTLs are eventually deleted
job.cleanup(ttl=100)
self.assertEqual(self.testconn.ttl(job.key), 100)
# Jobs with 0 TTL are immediately deleted
job.cleanup(ttl=0)
self.assertRaises(NoSuchJobError, Job.fetch, job.id, self.testconn)
def test_register_dependency(self):
"""Ensure dependency registration works properly."""
origin = 'some_queue'
registry = DeferredJobRegistry(origin, self.testconn)
job = Job.create(func=fixtures.say_hello, origin=origin)
job._dependency_id = 'id'
job.save()
self.assertEqual(registry.get_job_ids(), [])
job.register_dependency()
self.assertEqual(as_text(self.testconn.spop('rq:job:id:dependents')), job.id)
self.assertEqual(registry.get_job_ids(), [job.id])
def test_cancel(self):
"""job.cancel() deletes itself & dependents mapping from Redis."""
queue = Queue(connection=self.testconn)
job = queue.enqueue(fixtures.say_hello)
job2 = Job.create(func=fixtures.say_hello, depends_on=job)
job2.register_dependency()
job.cancel()
self.assertFalse(self.testconn.exists(job.key))
self.assertFalse(self.testconn.exists(job.dependents_key))
self.assertNotIn(job.id, queue.get_job_ids())
def test_create_job_with_id(self):
"""test creating jobs with a custom ID"""
queue = Queue(connection=self.testconn)
job = queue.enqueue(fixtures.say_hello, job_id="1234")
self.assertEqual(job.id, "1234")
job.perform()
self.assertRaises(TypeError, queue.enqueue, fixtures.say_hello, job_id=1234)
def test_get_call_string_unicode(self):
"""test call string with unicode keyword arguments"""
queue = Queue(connection=self.testconn)
job = queue.enqueue(fixtures.echo, arg_with_unicode=fixtures.UnicodeStringObject())
self.assertIsNotNone(job.get_call_string())
job.perform()
def test_create_job_with_ttl_should_have_ttl_after_enqueued(self):
"""test creating jobs with ttl and checks if get_jobs returns it properly [issue502]"""
queue = Queue(connection=self.testconn)
queue.enqueue(fixtures.say_hello, job_id="1234", ttl=10)
job = queue.get_jobs()[0]
self.assertEqual(job.ttl, 10)
def test_create_job_with_ttl_should_expire(self):
"""test if a job created with ttl expires [issue502]"""
queue = Queue(connection=self.testconn)
queue.enqueue(fixtures.say_hello, job_id="1234", ttl=1)
time.sleep(1)
self.assertEqual(0, len(queue.get_jobs()))