rq/tests/test_rq.py

150 lines
4.4 KiB
Python

import unittest
from pickle import loads
from redis import Redis
from rq import conn, Queue, Worker
# Test data
def testjob(name=None):
if name is None:
name = 'Stranger'
return 'Hi there, %s!' % (name,)
class RQTestCase(unittest.TestCase):
def setUp(self):
super(RQTestCase, self).setUp()
# Set up connection to Redis
testconn = Redis()
conn.push(testconn)
# Flush beforewards (we like our hygiene)
conn.flushdb()
# Store the connection (for sanity checking)
self.testconn = testconn
def tearDown(self):
# Flush afterwards
conn.flushdb()
# Pop the connection to Redis
testconn = conn.pop()
assert testconn == self.testconn, 'Wow, something really nasty happened to the Redis connection stack. Check your setup.'
super(RQTestCase, self).tearDown()
def assertQueueContains(self, queue, that_func):
# Do a queue scan (this is O(n), but we're in a test, so hey)
for message in queue.messages:
f, _, args, kwargs = loads(message)
if f == that_func:
return
self.fail('Queue %s does not contain message for function %s' %
(queue.key, that_func))
class TestQueue(RQTestCase):
def test_create_queue(self):
"""Creating queues."""
q = Queue('my-queue')
self.assertEquals(q.name, 'my-queue')
def test_create_default_queue(self):
"""Instantiating the default queue."""
q = Queue()
self.assertEquals(q.name, 'default')
def test_equality(self):
"""Mathematical equality of queues."""
q1 = Queue('foo')
q2 = Queue('foo')
q3 = Queue('bar')
self.assertEquals(q1, q2)
self.assertEquals(q2, q1)
self.assertNotEquals(q1, q3)
self.assertNotEquals(q2, q3)
def test_queue_empty(self):
"""Detecting empty queues."""
q = Queue('my-queue')
self.assertEquals(q.empty, True)
conn.rpush('rq:queue:my-queue', 'some val')
self.assertEquals(q.empty, False)
def test_enqueue(self):
"""Putting work on queues."""
q = Queue('my-queue')
self.assertEquals(q.empty, True)
# testjob spec holds which queue this is sent to
q.enqueue(testjob, 'Nick', foo='bar')
self.assertEquals(q.empty, False)
self.assertQueueContains(q, testjob)
def test_dequeue(self):
"""Fetching work from specific queue."""
q = Queue('foo')
q.enqueue(testjob, 'Rick', foo='bar')
# Pull it off the queue (normally, a worker would do this)
job = q.dequeue()
self.assertEquals(job.func, testjob)
self.assertEquals(job.origin, q)
self.assertEquals(job.args[0], 'Rick')
self.assertEquals(job.kwargs['foo'], 'bar')
def test_dequeue_any(self):
"""Fetching work from any given queue."""
fooq = Queue('foo')
barq = Queue('bar')
self.assertEquals(Queue.dequeue_any([fooq, barq], False), None)
# Enqueue a single item
barq.enqueue(testjob)
job = Queue.dequeue_any([fooq, barq], False)
self.assertEquals(job.func, testjob)
# Enqueue items on both queues
barq.enqueue(testjob, 'for Bar')
fooq.enqueue(testjob, 'for Foo')
job = Queue.dequeue_any([fooq, barq], False)
self.assertEquals(job.func, testjob)
self.assertEquals(job.origin, fooq)
self.assertEquals(job.args[0], 'for Foo', 'Foo should be dequeued first.')
job = Queue.dequeue_any([fooq, barq], False)
self.assertEquals(job.func, testjob)
self.assertEquals(job.origin, barq)
self.assertEquals(job.args[0], 'for Bar', 'Bar should be dequeued second.')
class TestWorker(RQTestCase):
def test_create_worker(self):
"""Worker creation."""
fooq, barq = Queue('foo'), Queue('bar')
w = Worker([fooq, barq])
self.assertEquals(w.queues, [fooq, barq])
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(), False, 'Did not expect any work on the queue.')
fooq.enqueue(testjob, name='Frank')
self.assertEquals(w.work_burst(), True, 'Expected at least some work done.')
if __name__ == '__main__':
unittest.main()