def test_push_producer_feedback(self):
string_file = BlockingStringWrite()
consumer = BackgroundFileConsumer(string_file, reactor=reactor)
try:
producer = NonCallableMock(
spec_set=["pauseProducing", "resumeProducing"])
resume_deferred = defer.Deferred()
producer.resumeProducing.side_effect = lambda: resume_deferred.callback(
None)
consumer.registerProducer(producer, True)
number_writes = 0
with string_file.write_lock:
for _ in range(consumer._PAUSE_ON_QUEUE_SIZE):
consumer.write("Foo")
number_writes += 1
producer.pauseProducing.assert_called_once()
yield string_file.wait_for_n_writes(number_writes)
yield resume_deferred
producer.resumeProducing.assert_called_once()
finally:
consumer.unregisterProducer()
yield consumer.wait()
self.assertTrue(string_file.closed)
def test_push_producer_feedback(self):
string_file = BlockingStringWrite()
consumer = BackgroundFileConsumer(string_file)
try:
producer = NonCallableMock(spec_set=["pauseProducing", "resumeProducing"])
resume_deferred = defer.Deferred()
producer.resumeProducing.side_effect = lambda: resume_deferred.callback(None)
consumer.registerProducer(producer, True)
number_writes = 0
with string_file.write_lock:
for _ in range(consumer._PAUSE_ON_QUEUE_SIZE):
consumer.write("Foo")
number_writes += 1
producer.pauseProducing.assert_called_once()
yield string_file.wait_for_n_writes(number_writes)
yield resume_deferred
producer.resumeProducing.assert_called_once()
finally:
consumer.unregisterProducer()
yield consumer.wait()
self.assertTrue(string_file.closed)
def test_push_consumer(self):
string_file = BlockingStringWrite()
consumer = BackgroundFileConsumer(string_file, reactor=reactor)
try:
producer = NonCallableMock(spec_set=[])
consumer.registerProducer(producer, True)
consumer.write("Foo")
yield string_file.wait_for_n_writes(1)
self.assertEqual(string_file.buffer, "Foo")
consumer.write("Bar")
yield string_file.wait_for_n_writes(2)
self.assertEqual(string_file.buffer, "FooBar")
finally:
consumer.unregisterProducer()
yield consumer.wait()
self.assertTrue(string_file.closed)
def test_push_consumer(self):
string_file = BlockingStringWrite()
consumer = BackgroundFileConsumer(string_file)
try:
producer = NonCallableMock(spec_set=[])
consumer.registerProducer(producer, True)
consumer.write("Foo")
yield string_file.wait_for_n_writes(1)
self.assertEqual(string_file.buffer, "Foo")
consumer.write("Bar")
yield string_file.wait_for_n_writes(2)
self.assertEqual(string_file.buffer, "FooBar")
finally:
consumer.unregisterProducer()
yield consumer.wait()
self.assertTrue(string_file.closed)