def test_mediator_on_iteration(self):
        bucket_queue = Queue()
        got = {}

        def mycallback(value):
            got["value"] = value

        m = Mediator(bucket_queue, mycallback)
        bucket_queue.put("George Constanza")

        m.on_iteration()

        self.assertEquals(got["value"], "George Constanza")
    def test_mediator_on_iteration(self):
        ready_queue = Queue()
        got = {}

        def mycallback(value):
            got["value"] = value.value

        m = Mediator(ready_queue, mycallback)
        ready_queue.put(MockTask("George Costanza"))

        m.on_iteration()

        self.assertEqual(got["value"], "George Costanza")
    def test_mediator_on_iteration(self):
        ready_queue = Queue()
        got = {}

        def mycallback(value):
            got["value"] = value.value

        m = Mediator(ready_queue, mycallback)
        ready_queue.put(MockTask("George Costanza"))

        m.on_iteration()

        self.assertEqual(got["value"], "George Costanza")
    def test_mediator_on_iteration_revoked(self):
        ready_queue = Queue()
        got = {}

        def mycallback(value):
            got["value"] = value.value

        m = Mediator(ready_queue, mycallback)
        t = MockTask("Jerry Seinfeld")
        t.task_id = gen_unique_id()
        revoked_tasks.add(t.task_id)
        ready_queue.put(t)

        m.on_iteration()

        self.assertNotIn("value", got)
        self.assertTrue(t.acked)
    def test_mediator_on_iteration_revoked(self):
        ready_queue = Queue()
        got = {}

        def mycallback(value):
            got["value"] = value.value

        m = Mediator(ready_queue, mycallback)
        t = MockTask("Jerry Seinfeld")
        t.task_id = gen_unique_id()
        revoked_tasks.add(t.task_id)
        ready_queue.put(t)

        m.on_iteration()

        self.assertNotIn("value", got)
        self.assertTrue(t.acked)
    def test_mediator_on_iteration_revoked(self):
        ready_queue = Queue()
        got = {}

        def mycallback(value):
            got["value"] = value.value

        m = Mediator(ready_queue, mycallback)
        t = MockTask("Jerry Seinfeld")
        t.task_id = gen_unique_id()
        from celery.worker.revoke import revoked
        revoked.add(t.task_id)
        ready_queue.put(t)

        m.on_iteration()

        self.assertTrue("value" not in got)
        self.assertTrue(t.acked)