def test_registerProducerTwiceFails(self):
"""
Calling L{Request.registerProducer} when a producer is already
registered raises ValueError.
"""
req = http.Request(DummyChannel(), None)
req.registerProducer(DummyProducer(), True)
self.assertRaises(ValueError, req.registerProducer, DummyProducer(),
True)
def test_registerProducerWhenQueuedPausesPushProducer(self):
"""
Calling L{Request.registerProducer} with an IPushProducer when the
request is queued pauses the producer.
"""
req = http.Request(DummyChannel(), True)
producer = DummyProducer()
req.registerProducer(producer, True)
self.assertEquals(['pause'], producer.events)
def test_registerProducerWhenNotQueuedRegistersPullProducer(self):
"""
Calling L{Request.registerProducer} with an IPullProducer when the
request is not queued registers the producer as a pull producer on the
request's transport.
"""
req = http.Request(DummyChannel(), False)
producer = DummyProducer()
req.registerProducer(producer, False)
self.assertEquals([(producer, False)], req.transport.producers)
def test_registerProducerWhenQueuedDoesntPausePullProducer(self):
"""
Calling L{Request.registerProducer} with an IPullProducer when the
request is queued does not pause the producer, because it doesn't make
sense to pause a pull producer.
"""
req = http.Request(DummyChannel(), True)
producer = DummyProducer()
req.registerProducer(producer, False)
self.assertEquals([], producer.events)
def test_registerProducerWhenQueuedDoesntRegisterPullProducer(self):
"""
Calling L{Request.registerProducer} with an IPullProducer when the
request is queued does not register the producer on the request's
transport.
"""
self.assertIdentical(
None, getattr(http.StringTransport, 'registerProducer', None),
"StringTransport cannot implement registerProducer for this test "
"to be valid.")
req = http.Request(DummyChannel(), True)
producer = DummyProducer()
req.registerProducer(producer, False)
# This is a roundabout assertion: http.StringTransport doesn't
# implement registerProducer, so Request.registerProducer can't have
# tried to call registerProducer on the transport.
self.assertIsInstance(req.transport, http.StringTransport)