Adds tests for brokers

* test for redis and django-redis
* test for disque

TODO add disque to Travis

django_q/brokers/__init__.py

@@ -6,7 +6,7 @@ class Broker(object):
     def __init__(self, list_key=Conf.Q_LIST):
         self.connection = self.get_connection()
         self.list_key = list_key
-        self.cache=self.get_cache()
+        self.cache = self.get_cache()
 
     def enqueue(self, task):
         pass
@@ -27,7 +27,7 @@ class Broker(object):
         pass
 
     def set_stat(self, key, value, timeout):
-        key_list=self.cache.get(Conf.Q_STAT, [])
+        key_list = self.cache.get(Conf.Q_STAT, [])
         if key not in key_list:
             key_list.append(key)
         self.cache.set(Conf.Q_STAT, key_list)
@@ -47,7 +47,7 @@ class Broker(object):
                 stats.append(stat)
             else:
                 key_list.remove(key)
-        self.cache.set(Conf.Q_STAT,key_list)
+        self.cache.set(Conf.Q_STAT, key_list)
         return stats
 
     @staticmethod

django_q/brokers/disque.py

@@ -22,6 +22,9 @@ class Disque(Broker):
     def ping(self):
         return self.connection.ping()
 
+    def delete_queue(self, list_key=None):
+        raise NotImplementedError
+
     @staticmethod
     def get_connection():
         for node in Conf.DISQUE:

django_q/tests/test_brokers.py

@@ -0,0 +1,61 @@
+from time import sleep
+import pytest
+from django_q.conf import Conf
+from django_q.brokers import get_broker, Broker
+
+
+def test_broker():
+    broker = Broker()
+    broker.enqueue('test')
+    broker.dequeue()
+    broker.queue_size()
+    broker.delete_queue()
+    broker.acknowledge('test')
+    broker.ping()
+    assert broker.get_stat('test_1') is None
+    broker.set_stat('test_1', 'test', 3)
+    assert broker.get_stat('test_1') == 'test'
+    assert broker.get_stats('test:*')[0] == 'test'
+
+
+def test_redis():
+    Conf.DJANGO_REDIS = None
+    broker = get_broker()
+    assert broker.ping() is True
+    Conf.REDIS = {'host': '127.0.0.1', 'port': 7712}
+    broker = get_broker()
+    with pytest.raises(Exception):
+        broker.ping()
+
+
+def test_disque():
+    Conf.DISQUE = ['127.0.0.1:7711']
+    broker = get_broker()
+    assert broker.ping() is True
+    broker.enqueue('test')
+    assert broker.queue_size() == 1
+    task = broker.dequeue()
+    assert task[1] == 'test'
+    broker.acknowledge(task[0])
+    assert broker.queue_size() == 0
+    # Retry test
+    Conf.RETRY = 1
+    broker.enqueue('test')
+    assert broker.queue_size() == 1
+    broker.dequeue()
+    assert broker.queue_size() == 0
+    sleep(1.5)
+    assert broker.queue_size() == 1
+    task = broker.dequeue()
+    assert broker.queue_size() == 0
+    broker.acknowledge(task[0])
+    sleep(1.5)
+    assert broker.queue_size() == 0
+    # errors
+    with pytest.raises(NotImplementedError):
+        broker.delete_queue()
+    Conf.DISQUE = ['127.0.0.1:7712', '127.0.0.1:7713']
+    with pytest.raises(ConnectionError):
+        broker.get_connection()
+    # back to djangoredis
+    Conf.DJANGO_REDIS = 'default'