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)
