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 ensure_media_is_in_local_cache(self, file_info): """Ensures that the given file is in the local cache. Attempts to download it from storage providers if it isn't. Args: file_info (FileInfo) Returns: Deferred[str]: Full path to local file """ path = self._file_info_to_path(file_info) local_path = os.path.join(self.local_media_directory, path) if os.path.exists(local_path): defer.returnValue(local_path) dirname = os.path.dirname(local_path) if not os.path.exists(dirname): os.makedirs(dirname) for provider in self.storage_providers: res = yield provider.fetch(path, file_info) if res: with res: consumer = BackgroundFileConsumer(open(local_path, "w")) yield res.write_to_consumer(consumer) yield consumer.wait() defer.returnValue(local_path) raise Exception("file could not be found")
def ensure_media_is_in_local_cache(self, file_info): """Ensures that the given file is in the local cache. Attempts to download it from storage providers if it isn't. Args: file_info (FileInfo) Returns: Deferred[str]: Full path to local file """ path = self._file_info_to_path(file_info) local_path = os.path.join(self.local_media_directory, path) if os.path.exists(local_path): defer.returnValue(local_path) dirname = os.path.dirname(local_path) if not os.path.exists(dirname): os.makedirs(dirname) for provider in self.storage_providers: res = yield provider.fetch(path, file_info) if res: with res: consumer = BackgroundFileConsumer( open(local_path, "wb"), self.hs.get_reactor() ) yield res.write_to_consumer(consumer) yield consumer.wait() defer.returnValue(local_path) raise Exception("file could not be found")
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_pull_consumer(self): string_file = StringIO() consumer = BackgroundFileConsumer(string_file, reactor=reactor) try: producer = DummyPullProducer() yield producer.register_with_consumer(consumer) yield producer.write_and_wait("Foo") self.assertEqual(string_file.getvalue(), "Foo") yield producer.write_and_wait("Bar") self.assertEqual(string_file.getvalue(), "FooBar") finally: consumer.unregisterProducer() yield consumer.wait() self.assertTrue(string_file.closed)
def test_pull_consumer(self): string_file = StringIO() consumer = BackgroundFileConsumer(string_file) try: producer = DummyPullProducer() yield producer.register_with_consumer(consumer) yield producer.write_and_wait("Foo") self.assertEqual(string_file.getvalue(), "Foo") yield producer.write_and_wait("Bar") self.assertEqual(string_file.getvalue(), "FooBar") 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)