def test_write_transfer(self): checksum = self.checksum() test_data = ('1234' * 1024)[:-10] size = len(test_data) meta_chunk = self.meta_chunk() nb = len(meta_chunk) resps = [201] * nb source = StringIO(test_data) put_reqs = defaultdict(lambda: {'parts': []}) def cb_body(conn_id, part): put_reqs[conn_id]['parts'].append(part) with set_http_connect(*resps, cb_body=cb_body): handler = ReplicatedChunkWriteHandler( self.sysmeta, meta_chunk, checksum, self.storage_method) bytes_transferred, checksum, chunks = handler.stream(source, size) final_checksum = self.checksum(test_data).hexdigest() self.assertEqual(len(test_data), bytes_transferred) self.assertEqual(final_checksum, checksum) bodies = [] for conn_id, info in put_reqs.items(): body, trailers = decode_chunked_body(''.join(info['parts'])) # TODO check trailers? bodies.append(body) self.assertEqual(len(bodies), nb) for body in bodies: self.assertEqual(len(test_data), len(body)) self.assertEqual(self.checksum(body).hexdigest(), final_checksum)
def test_write_simple(self): checksum = self.checksum() source = empty_stream() meta_chunk = self.meta_chunk() size = CHUNK_SIZE resps = [201] * len(meta_chunk) with set_http_connect(*resps): handler = ReplicatedChunkWriteHandler( self.sysmeta, meta_chunk, checksum, self.storage_method) bytes_transferred, checksum, chunks = handler.stream( source, size) self.assertEqual(len(chunks), len(meta_chunk)) self.assertEqual(bytes_transferred, 0) self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_partial_exception(self): checksum = self.checksum() source = empty_stream() size = CHUNK_SIZE meta_chunk = self.meta_chunk() resps = [201] * (len(meta_chunk) - 1) resps.append(Exception("failure")) with set_http_connect(*resps): handler = ReplicatedChunkWriteHandler( self.sysmeta, meta_chunk, checksum, self.storage_method) bytes_transferred, checksum, chunks = handler.stream(source, size) self.assertEqual(len(chunks), len(meta_chunk)) for i in range(len(meta_chunk) - 1): self.assertEqual(chunks[i].get('error'), None) self.assertEqual(chunks[len(meta_chunk) - 1].get('error'), 'failure') self.assertEqual(bytes_transferred, 0) self.assertEqual(checksum, EMPTY_CHECKSUM)
def test_write_quorum_success(self): checksum = self.checksum() source = empty_stream() size = CHUNK_SIZE meta_chunk = self.meta_chunk() quorum_size = self.storage_method.quorum resps = [201] * quorum_size resps += [500] * (len(meta_chunk) - quorum_size) with set_http_connect(*resps): handler = ReplicatedChunkWriteHandler( self.sysmeta, meta_chunk, checksum, self.storage_method) bytes_transferred, checksum, chunks = handler.stream(source, size) self.assertEqual(len(chunks), len(meta_chunk)) for i in range(quorum_size): self.assertEqual(chunks[i].get('error'), None) for i in xrange(quorum_size, len(meta_chunk)): self.assertEqual(chunks[i].get('error'), 'HTTP 500') self.assertEqual(bytes_transferred, 0) self.assertEqual(checksum, EMPTY_CHECKSUM)