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-rw-r--r--test/test_protocol.py984
1 files changed, 141 insertions, 843 deletions
diff --git a/test/test_protocol.py b/test/test_protocol.py
index d705e3a..247fcc3 100644
--- a/test/test_protocol.py
+++ b/test/test_protocol.py
@@ -1,848 +1,146 @@
#pylint: skip-file
-from contextlib import contextmanager
import struct
+import pytest
import six
-from mock import patch, sentinel
-from . import unittest
-from kafka.codec import has_snappy, gzip_decode, snappy_decode
-from kafka.errors import (
- ChecksumError, KafkaUnavailableError, UnsupportedCodecError,
- ConsumerFetchSizeTooSmall, ProtocolError)
-from kafka.protocol import (
- ATTRIBUTE_CODEC_MASK, CODEC_NONE, CODEC_GZIP, CODEC_SNAPPY, KafkaProtocol,
- create_message, create_gzip_message, create_snappy_message,
- create_message_set)
-from kafka.structs import (
- OffsetRequestPayload, OffsetResponsePayload,
- OffsetCommitRequestPayload, OffsetCommitResponsePayload,
- OffsetFetchRequestPayload, OffsetFetchResponsePayload,
- ProduceRequestPayload, ProduceResponsePayload,
- FetchRequestPayload, FetchResponsePayload,
- Message, OffsetAndMessage, BrokerMetadata, ConsumerMetadataResponse)
-
-
-class TestProtocol(unittest.TestCase):
- def test_create_message(self):
- payload = "test"
- key = "key"
- msg = create_message(payload, key)
- self.assertEqual(msg.magic, 0)
- self.assertEqual(msg.attributes, 0)
- self.assertEqual(msg.key, key)
- self.assertEqual(msg.value, payload)
-
- def test_create_gzip(self):
- payloads = [(b"v1", None), (b"v2", None)]
- msg = create_gzip_message(payloads)
- self.assertEqual(msg.magic, 0)
- self.assertEqual(msg.attributes, ATTRIBUTE_CODEC_MASK & CODEC_GZIP)
- self.assertEqual(msg.key, None)
- # Need to decode to check since gzipped payload is non-deterministic
- decoded = gzip_decode(msg.value)
- expect = b"".join([
- struct.pack(">q", 0), # MsgSet offset
- struct.pack(">i", 16), # MsgSet size
- struct.pack(">i", 1285512130), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", -1), # -1 indicates a null key
- struct.pack(">i", 2), # Msg length (bytes)
- b"v1", # Message contents
-
- struct.pack(">q", 0), # MsgSet offset
- struct.pack(">i", 16), # MsgSet size
- struct.pack(">i", -711587208), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", -1), # -1 indicates a null key
- struct.pack(">i", 2), # Msg length (bytes)
- b"v2", # Message contents
- ])
-
- self.assertEqual(decoded, expect)
-
- def test_create_gzip_keyed(self):
- payloads = [(b"v1", b"k1"), (b"v2", b"k2")]
- msg = create_gzip_message(payloads)
- self.assertEqual(msg.magic, 0)
- self.assertEqual(msg.attributes, ATTRIBUTE_CODEC_MASK & CODEC_GZIP)
- self.assertEqual(msg.key, None)
- # Need to decode to check since gzipped payload is non-deterministic
- decoded = gzip_decode(msg.value)
- expect = b"".join([
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", 1474775406), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k1", # Key
- struct.pack(">i", 2), # Length of value
- b"v1", # Value
-
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", -16383415), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k2", # Key
- struct.pack(">i", 2), # Length of value
- b"v2", # Value
- ])
-
- self.assertEqual(decoded, expect)
-
- @unittest.skipUnless(has_snappy(), "Snappy not available")
- def test_create_snappy(self):
- payloads = [(b"v1", None), (b"v2", None)]
- msg = create_snappy_message(payloads)
- self.assertEqual(msg.magic, 0)
- self.assertEqual(msg.attributes, ATTRIBUTE_CODEC_MASK & CODEC_SNAPPY)
- self.assertEqual(msg.key, None)
- decoded = snappy_decode(msg.value)
- expect = b"".join([
- struct.pack(">q", 0), # MsgSet offset
- struct.pack(">i", 16), # MsgSet size
- struct.pack(">i", 1285512130), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", -1), # -1 indicates a null key
- struct.pack(">i", 2), # Msg length (bytes)
- b"v1", # Message contents
-
- struct.pack(">q", 0), # MsgSet offset
- struct.pack(">i", 16), # MsgSet size
- struct.pack(">i", -711587208), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", -1), # -1 indicates a null key
- struct.pack(">i", 2), # Msg length (bytes)
- b"v2", # Message contents
- ])
-
- self.assertEqual(decoded, expect)
-
- @unittest.skipUnless(has_snappy(), "Snappy not available")
- def test_create_snappy_keyed(self):
- payloads = [(b"v1", b"k1"), (b"v2", b"k2")]
- msg = create_snappy_message(payloads)
- self.assertEqual(msg.magic, 0)
- self.assertEqual(msg.attributes, ATTRIBUTE_CODEC_MASK & CODEC_SNAPPY)
- self.assertEqual(msg.key, None)
- decoded = snappy_decode(msg.value)
- expect = b"".join([
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", 1474775406), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k1", # Key
- struct.pack(">i", 2), # Length of value
- b"v1", # Value
-
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", -16383415), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k2", # Key
- struct.pack(">i", 2), # Length of value
- b"v2", # Value
- ])
-
- self.assertEqual(decoded, expect)
-
- def test_encode_message_header(self):
- expect = b"".join([
- struct.pack(">h", 10), # API Key
- struct.pack(">h", 0), # API Version
- struct.pack(">i", 4), # Correlation Id
- struct.pack(">h", len("client3")), # Length of clientId
- b"client3", # ClientId
- ])
-
- encoded = KafkaProtocol._encode_message_header(b"client3", 4, 10)
- self.assertEqual(encoded, expect)
-
- def test_encode_message(self):
- message = create_message(b"test", b"key")
- encoded = KafkaProtocol._encode_message(message)
- expect = b"".join([
- struct.pack(">i", -1427009701), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 3), # Length of key
- b"key", # key
- struct.pack(">i", 4), # Length of value
- b"test", # value
- ])
-
- self.assertEqual(encoded, expect)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_message(self):
- encoded = b"".join([
- struct.pack(">i", -1427009701), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 3), # Length of key
- b"key", # key
- struct.pack(">i", 4), # Length of value
- b"test", # value
- ])
-
- offset = 10
- (returned_offset, decoded_message) = list(KafkaProtocol._decode_message(encoded, offset))[0]
-
- self.assertEqual(returned_offset, offset)
- self.assertEqual(decoded_message, create_message(b"test", b"key"))
-
- def test_encode_message_failure(self):
- with self.assertRaises(ProtocolError):
- KafkaProtocol._encode_message(Message(1, 0, "key", "test"))
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_message_set(self):
- message_set = [
- create_message(b"v1", b"k1"),
- create_message(b"v2", b"k2")
- ]
-
- encoded = KafkaProtocol._encode_message_set(message_set)
- expect = b"".join([
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", 1474775406), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k1", # Key
- struct.pack(">i", 2), # Length of value
- b"v1", # Value
-
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", -16383415), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k2", # Key
- struct.pack(">i", 2), # Length of value
- b"v2", # Value
- ])
-
- self.assertEqual(encoded, expect)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_message_set(self):
- encoded = b"".join([
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", 1474775406), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k1", # Key
- struct.pack(">i", 2), # Length of value
- b"v1", # Value
-
- struct.pack(">q", 1), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", -16383415), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k2", # Key
- struct.pack(">i", 2), # Length of value
- b"v2", # Value
- ])
-
- msgs = list(KafkaProtocol._decode_message_set_iter(encoded))
- self.assertEqual(len(msgs), 2)
- msg1, msg2 = msgs
-
- returned_offset1, decoded_message1 = msg1
- returned_offset2, decoded_message2 = msg2
-
- self.assertEqual(returned_offset1, 0)
- self.assertEqual(decoded_message1, create_message(b"v1", b"k1"))
-
- self.assertEqual(returned_offset2, 1)
- self.assertEqual(decoded_message2, create_message(b"v2", b"k2"))
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_message_gzip(self):
- gzip_encoded = (b'\xc0\x11\xb2\xf0\x00\x01\xff\xff\xff\xff\x00\x00\x000'
- b'\x1f\x8b\x08\x00\xa1\xc1\xc5R\x02\xffc`\x80\x03\x01'
- b'\x9f\xf9\xd1\x87\x18\x18\xfe\x03\x01\x90\xc7Tf\xc8'
- b'\x80$wu\x1aW\x05\x92\x9c\x11\x00z\xc0h\x888\x00\x00'
- b'\x00')
- offset = 11
- messages = list(KafkaProtocol._decode_message(gzip_encoded, offset))
-
- self.assertEqual(len(messages), 2)
- msg1, msg2 = messages
-
- returned_offset1, decoded_message1 = msg1
- self.assertEqual(returned_offset1, 0)
- self.assertEqual(decoded_message1, create_message(b"v1"))
-
- returned_offset2, decoded_message2 = msg2
- self.assertEqual(returned_offset2, 0)
- self.assertEqual(decoded_message2, create_message(b"v2"))
-
- @unittest.skip('needs updating for new protocol classes')
- @unittest.skipUnless(has_snappy(), "Snappy not available")
- def test_decode_message_snappy(self):
- snappy_encoded = (b'\xec\x80\xa1\x95\x00\x02\xff\xff\xff\xff\x00\x00'
- b'\x00,8\x00\x00\x19\x01@\x10L\x9f[\xc2\x00\x00\xff'
- b'\xff\xff\xff\x00\x00\x00\x02v1\x19\x1bD\x00\x10\xd5'
- b'\x96\nx\x00\x00\xff\xff\xff\xff\x00\x00\x00\x02v2')
- offset = 11
- messages = list(KafkaProtocol._decode_message(snappy_encoded, offset))
- self.assertEqual(len(messages), 2)
-
- msg1, msg2 = messages
-
- returned_offset1, decoded_message1 = msg1
- self.assertEqual(returned_offset1, 0)
- self.assertEqual(decoded_message1, create_message(b"v1"))
-
- returned_offset2, decoded_message2 = msg2
- self.assertEqual(returned_offset2, 0)
- self.assertEqual(decoded_message2, create_message(b"v2"))
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_message_checksum_error(self):
- invalid_encoded_message = b"This is not a valid encoded message"
- iter = KafkaProtocol._decode_message(invalid_encoded_message, 0)
- self.assertRaises(ChecksumError, list, iter)
-
- # NOTE: The error handling in _decode_message_set_iter() is questionable.
- # If it's modified, the next two tests might need to be fixed.
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_message_set_fetch_size_too_small(self):
- with self.assertRaises(ConsumerFetchSizeTooSmall):
- list(KafkaProtocol._decode_message_set_iter('a'))
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_message_set_stop_iteration(self):
- encoded = b"".join([
- struct.pack(">q", 0), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", 1474775406), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k1", # Key
- struct.pack(">i", 2), # Length of value
- b"v1", # Value
-
- struct.pack(">q", 1), # MsgSet Offset
- struct.pack(">i", 18), # Msg Size
- struct.pack(">i", -16383415), # CRC
- struct.pack(">bb", 0, 0), # Magic, flags
- struct.pack(">i", 2), # Length of key
- b"k2", # Key
- struct.pack(">i", 2), # Length of value
- b"v2", # Value
- b"@1$%(Y!", # Random padding
- ])
-
- msgs = MessageSet.decode(io.BytesIO(encoded))
- self.assertEqual(len(msgs), 2)
- msg1, msg2 = msgs
-
- returned_offset1, msg_size1, decoded_message1 = msg1
- returned_offset2, msg_size2, decoded_message2 = msg2
-
- self.assertEqual(returned_offset1, 0)
- self.assertEqual(decoded_message1.value, b"v1")
- self.assertEqual(decoded_message1.key, b"k1")
-
- self.assertEqual(returned_offset2, 1)
- self.assertEqual(decoded_message2.value, b"v2")
- self.assertEqual(decoded_message2.key, b"k2")
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_produce_request(self):
- requests = [
- ProduceRequestPayload("topic1", 0, [
- kafka.protocol.message.Message(b"a"),
- kafka.protocol.message.Message(b"b")
- ]),
- ProduceRequestPayload("topic2", 1, [
- kafka.protocol.message.Message(b"c")
- ])
- ]
-
- msg_a_binary = KafkaProtocol._encode_message(create_message(b"a"))
- msg_b_binary = KafkaProtocol._encode_message(create_message(b"b"))
- msg_c_binary = KafkaProtocol._encode_message(create_message(b"c"))
-
- header = b"".join([
- struct.pack('>i', 0x94), # The length of the message overall
- struct.pack('>h', 0), # Msg Header, Message type = Produce
- struct.pack('>h', 0), # Msg Header, API version
- struct.pack('>i', 2), # Msg Header, Correlation ID
- struct.pack('>h7s', 7, b"client1"), # Msg Header, The client ID
- struct.pack('>h', 2), # Num acks required
- struct.pack('>i', 100), # Request Timeout
- struct.pack('>i', 2), # The number of requests
- ])
-
- total_len = len(msg_a_binary) + len(msg_b_binary)
- topic1 = b"".join([
- struct.pack('>h6s', 6, b'topic1'), # The topic1
- struct.pack('>i', 1), # One message set
- struct.pack('>i', 0), # Partition 0
- struct.pack('>i', total_len + 24), # Size of the incoming message set
- struct.pack('>q', 0), # No offset specified
- struct.pack('>i', len(msg_a_binary)), # Length of message
- msg_a_binary, # Actual message
- struct.pack('>q', 0), # No offset specified
- struct.pack('>i', len(msg_b_binary)), # Length of message
- msg_b_binary, # Actual message
- ])
-
- topic2 = b"".join([
- struct.pack('>h6s', 6, b'topic2'), # The topic1
- struct.pack('>i', 1), # One message set
- struct.pack('>i', 1), # Partition 1
- struct.pack('>i', len(msg_c_binary) + 12), # Size of the incoming message set
- struct.pack('>q', 0), # No offset specified
- struct.pack('>i', len(msg_c_binary)), # Length of message
- msg_c_binary, # Actual message
- ])
-
- expected1 = b"".join([ header, topic1, topic2 ])
- expected2 = b"".join([ header, topic2, topic1 ])
-
- encoded = KafkaProtocol.encode_produce_request(b"client1", 2, requests, 2, 100)
- self.assertIn(encoded, [ expected1, expected2 ])
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_produce_response(self):
- t1 = b"topic1"
- t2 = b"topic2"
- _long = int
- if six.PY2:
- _long = long
- encoded = struct.pack('>iih%dsiihqihqh%dsiihq' % (len(t1), len(t2)),
- 2, 2, len(t1), t1, 2, 0, 0, _long(10), 1, 1, _long(20),
- len(t2), t2, 1, 0, 0, _long(30))
- responses = list(KafkaProtocol.decode_produce_response(encoded))
- self.assertEqual(responses,
- [ProduceResponse(t1, 0, 0, _long(10)),
- ProduceResponse(t1, 1, 1, _long(20)),
- ProduceResponse(t2, 0, 0, _long(30))])
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_fetch_request(self):
- requests = [
- FetchRequest(b"topic1", 0, 10, 1024),
- FetchRequest(b"topic2", 1, 20, 100),
- ]
-
- header = b"".join([
- struct.pack('>i', 89), # The length of the message overall
- struct.pack('>h', 1), # Msg Header, Message type = Fetch
- struct.pack('>h', 0), # Msg Header, API version
- struct.pack('>i', 3), # Msg Header, Correlation ID
- struct.pack('>h7s', 7, b"client1"),# Msg Header, The client ID
- struct.pack('>i', -1), # Replica Id
- struct.pack('>i', 2), # Max wait time
- struct.pack('>i', 100), # Min bytes
- struct.pack('>i', 2), # Num requests
- ])
-
- topic1 = b"".join([
- struct.pack('>h6s', 6, b'topic1'),# Topic
- struct.pack('>i', 1), # Num Payloads
- struct.pack('>i', 0), # Partition 0
- struct.pack('>q', 10), # Offset
- struct.pack('>i', 1024), # Max Bytes
- ])
-
- topic2 = b"".join([
- struct.pack('>h6s', 6, b'topic2'),# Topic
- struct.pack('>i', 1), # Num Payloads
- struct.pack('>i', 1), # Partition 0
- struct.pack('>q', 20), # Offset
- struct.pack('>i', 100), # Max Bytes
- ])
-
- expected1 = b"".join([ header, topic1, topic2 ])
- expected2 = b"".join([ header, topic2, topic1 ])
-
- encoded = KafkaProtocol.encode_fetch_request(b"client1", 3, requests, 2, 100)
- self.assertIn(encoded, [ expected1, expected2 ])
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_fetch_response(self):
- t1 = b"topic1"
- t2 = b"topic2"
- msgs = [create_message(msg)
- for msg in [b"message1", b"hi", b"boo", b"foo", b"so fun!"]]
- ms1 = KafkaProtocol._encode_message_set([msgs[0], msgs[1]])
- ms2 = KafkaProtocol._encode_message_set([msgs[2]])
- ms3 = KafkaProtocol._encode_message_set([msgs[3], msgs[4]])
-
- encoded = struct.pack('>iih%dsiihqi%dsihqi%dsh%dsiihqi%ds' %
- (len(t1), len(ms1), len(ms2), len(t2), len(ms3)),
- 4, 2, len(t1), t1, 2, 0, 0, 10, len(ms1), ms1, 1,
- 1, 20, len(ms2), ms2, len(t2), t2, 1, 0, 0, 30,
- len(ms3), ms3)
-
- responses = list(KafkaProtocol.decode_fetch_response(encoded))
- def expand_messages(response):
- return FetchResponsePayload(response.topic, response.partition,
- response.error, response.highwaterMark,
- list(response.messages))
-
- expanded_responses = list(map(expand_messages, responses))
- expect = [FetchResponsePayload(t1, 0, 0, 10, [OffsetAndMessage(0, msgs[0]),
- OffsetAndMessage(0, msgs[1])]),
- FetchResponsePayload(t1, 1, 1, 20, [OffsetAndMessage(0, msgs[2])]),
- FetchResponsePayload(t2, 0, 0, 30, [OffsetAndMessage(0, msgs[3]),
- OffsetAndMessage(0, msgs[4])])]
- self.assertEqual(expanded_responses, expect)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_metadata_request_no_topics(self):
- expected = b"".join([
- struct.pack(">i", 17), # Total length of the request
- struct.pack('>h', 3), # API key metadata fetch
- struct.pack('>h', 0), # API version
- struct.pack('>i', 4), # Correlation ID
- struct.pack('>h3s', 3, b"cid"),# The client ID
- struct.pack('>i', 0), # No topics, give all the data!
- ])
-
- encoded = KafkaProtocol.encode_metadata_request(b"cid", 4)
-
- self.assertEqual(encoded, expected)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_metadata_request_with_topics(self):
- expected = b"".join([
- struct.pack(">i", 25), # Total length of the request
- struct.pack('>h', 3), # API key metadata fetch
- struct.pack('>h', 0), # API version
- struct.pack('>i', 4), # Correlation ID
- struct.pack('>h3s', 3, b"cid"),# The client ID
- struct.pack('>i', 2), # Number of topics in the request
- struct.pack('>h2s', 2, b"t1"), # Topic "t1"
- struct.pack('>h2s', 2, b"t2"), # Topic "t2"
- ])
-
- encoded = KafkaProtocol.encode_metadata_request(b"cid", 4, [b"t1", b"t2"])
-
- self.assertEqual(encoded, expected)
-
- def _create_encoded_metadata_response(self, brokers, topics):
- encoded = []
- encoded.append(struct.pack('>ii', 3, len(brokers)))
- for broker in brokers:
- encoded.append(struct.pack('>ih%dsi' % len(broker.host),
- broker.nodeId, len(broker.host),
- broker.host, broker.port))
-
- encoded.append(struct.pack('>i', len(topics)))
- for topic in topics:
- encoded.append(struct.pack('>hh%dsi' % len(topic.topic),
- topic.error, len(topic.topic),
- topic.topic, len(topic.partitions)))
- for metadata in topic.partitions:
- encoded.append(struct.pack('>hiii', metadata.error,
- metadata.partition, metadata.leader,
- len(metadata.replicas)))
- if len(metadata.replicas) > 0:
- encoded.append(struct.pack('>%di' % len(metadata.replicas),
- *metadata.replicas))
-
- encoded.append(struct.pack('>i', len(metadata.isr)))
- if len(metadata.isr) > 0:
- encoded.append(struct.pack('>%di' % len(metadata.isr),
- *metadata.isr))
- return b''.join(encoded)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_metadata_response(self):
- node_brokers = [
- BrokerMetadata(0, b"brokers1.kafka.rdio.com", 1000),
- BrokerMetadata(1, b"brokers1.kafka.rdio.com", 1001),
- BrokerMetadata(3, b"brokers2.kafka.rdio.com", 1000)
- ]
-
- '''
- topic_partitions = [
- TopicMetadata(b"topic1", 0, [
- PartitionMetadata(b"topic1", 0, 1, (0, 2), (2,), 0),
- PartitionMetadata(b"topic1", 1, 3, (0, 1), (0, 1), 1)
- ]),
- TopicMetadata(b"topic2", 1, [
- PartitionMetadata(b"topic2", 0, 0, (), (), 0),
- ]),
- ]
- encoded = self._create_encoded_metadata_response(node_brokers,
- topic_partitions)
- decoded = KafkaProtocol.decode_metadata_response(encoded)
- self.assertEqual(decoded, (node_brokers, topic_partitions))
- '''
-
- def test_encode_consumer_metadata_request(self):
- expected = b"".join([
- struct.pack(">i", 17), # Total length of the request
- struct.pack('>h', 10), # API key consumer metadata
- struct.pack('>h', 0), # API version
- struct.pack('>i', 4), # Correlation ID
- struct.pack('>h3s', 3, b"cid"),# The client ID
- struct.pack('>h2s', 2, b"g1"), # Group "g1"
- ])
-
- encoded = KafkaProtocol.encode_consumer_metadata_request(b"cid", 4, b"g1")
-
- self.assertEqual(encoded, expected)
-
- def test_decode_consumer_metadata_response(self):
- encoded = b"".join([
- struct.pack(">i", 42), # Correlation ID
- struct.pack(">h", 0), # No Error
- struct.pack(">i", 1), # Broker ID
- struct.pack(">h23s", 23, b"brokers1.kafka.rdio.com"), # Broker Host
- struct.pack(">i", 1000), # Broker Port
- ])
-
- results = KafkaProtocol.decode_consumer_metadata_response(encoded)
- self.assertEqual(results,
- ConsumerMetadataResponse(error = 0, nodeId = 1, host = b'brokers1.kafka.rdio.com', port = 1000)
- )
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_offset_request(self):
- expected = b"".join([
- struct.pack(">i", 21), # Total length of the request
- struct.pack('>h', 2), # Message type = offset fetch
- struct.pack('>h', 0), # API version
- struct.pack('>i', 4), # Correlation ID
- struct.pack('>h3s', 3, b"cid"), # The client ID
- struct.pack('>i', -1), # Replica Id
- struct.pack('>i', 0), # No topic/partitions
- ])
-
- encoded = KafkaProtocol.encode_offset_request(b"cid", 4)
-
- self.assertEqual(encoded, expected)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_offset_request__no_payload(self):
- expected = b"".join([
- struct.pack(">i", 65), # Total length of the request
-
- struct.pack('>h', 2), # Message type = offset fetch
- struct.pack('>h', 0), # API version
- struct.pack('>i', 4), # Correlation ID
- struct.pack('>h3s', 3, b"cid"), # The client ID
- struct.pack('>i', -1), # Replica Id
- struct.pack('>i', 1), # Num topics
- struct.pack(">h6s", 6, b"topic1"),# Topic for the request
- struct.pack(">i", 2), # Two partitions
-
- struct.pack(">i", 3), # Partition 3
- struct.pack(">q", -1), # No time offset
- struct.pack(">i", 1), # One offset requested
-
- struct.pack(">i", 4), # Partition 3
- struct.pack(">q", -1), # No time offset
- struct.pack(">i", 1), # One offset requested
- ])
-
- encoded = KafkaProtocol.encode_offset_request(b"cid", 4, [
- OffsetRequest(b'topic1', 3, -1, 1),
- OffsetRequest(b'topic1', 4, -1, 1),
- ])
-
- self.assertEqual(encoded, expected)
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_offset_response(self):
- encoded = b"".join([
- struct.pack(">i", 42), # Correlation ID
- struct.pack(">i", 1), # One topics
- struct.pack(">h6s", 6, b"topic1"),# First topic
- struct.pack(">i", 2), # Two partitions
-
- struct.pack(">i", 2), # Partition 2
- struct.pack(">h", 0), # No error
- struct.pack(">i", 1), # One offset
- struct.pack(">q", 4), # Offset 4
-
- struct.pack(">i", 4), # Partition 4
- struct.pack(">h", 0), # No error
- struct.pack(">i", 1), # One offset
- struct.pack(">q", 8), # Offset 8
- ])
-
- results = KafkaProtocol.decode_offset_response(encoded)
- self.assertEqual(set(results), set([
- OffsetResponse(topic = b'topic1', partition = 2, error = 0, offsets=(4,)),
- OffsetResponse(topic = b'topic1', partition = 4, error = 0, offsets=(8,)),
- ]))
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_offset_commit_request(self):
- header = b"".join([
- struct.pack('>i', 99), # Total message length
-
- struct.pack('>h', 8), # Message type = offset commit
- struct.pack('>h', 0), # API version
- struct.pack('>i', 42), # Correlation ID
- struct.pack('>h9s', 9, b"client_id"),# The client ID
- struct.pack('>h8s', 8, b"group_id"), # The group to commit for
- struct.pack('>i', 2), # Num topics
- ])
-
- topic1 = b"".join([
- struct.pack(">h6s", 6, b"topic1"), # Topic for the request
- struct.pack(">i", 2), # Two partitions
- struct.pack(">i", 0), # Partition 0
- struct.pack(">q", 123), # Offset 123
- struct.pack(">h", -1), # Null metadata
- struct.pack(">i", 1), # Partition 1
- struct.pack(">q", 234), # Offset 234
- struct.pack(">h", -1), # Null metadata
- ])
-
- topic2 = b"".join([
- struct.pack(">h6s", 6, b"topic2"), # Topic for the request
- struct.pack(">i", 1), # One partition
- struct.pack(">i", 2), # Partition 2
- struct.pack(">q", 345), # Offset 345
- struct.pack(">h", -1), # Null metadata
- ])
-
- expected1 = b"".join([ header, topic1, topic2 ])
- expected2 = b"".join([ header, topic2, topic1 ])
-
- encoded = KafkaProtocol.encode_offset_commit_request(b"client_id", 42, b"group_id", [
- OffsetCommitRequest(b"topic1", 0, 123, None),
- OffsetCommitRequest(b"topic1", 1, 234, None),
- OffsetCommitRequest(b"topic2", 2, 345, None),
- ])
-
- self.assertIn(encoded, [ expected1, expected2 ])
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_offset_commit_response(self):
- encoded = b"".join([
- struct.pack(">i", 42), # Correlation ID
- struct.pack(">i", 1), # One topic
- struct.pack(">h6s", 6, b"topic1"),# First topic
- struct.pack(">i", 2), # Two partitions
-
- struct.pack(">i", 2), # Partition 2
- struct.pack(">h", 0), # No error
-
- struct.pack(">i", 4), # Partition 4
- struct.pack(">h", 0), # No error
- ])
-
- results = KafkaProtocol.decode_offset_commit_response(encoded)
- self.assertEqual(set(results), set([
- OffsetCommitResponse(topic = b'topic1', partition = 2, error = 0),
- OffsetCommitResponse(topic = b'topic1', partition = 4, error = 0),
- ]))
-
- @unittest.skip('needs updating for new protocol classes')
- def test_encode_offset_fetch_request(self):
- header = b"".join([
- struct.pack('>i', 69), # Total message length
- struct.pack('>h', 9), # Message type = offset fetch
- struct.pack('>h', 0), # API version
- struct.pack('>i', 42), # Correlation ID
- struct.pack('>h9s', 9, b"client_id"),# The client ID
- struct.pack('>h8s', 8, b"group_id"), # The group to commit for
- struct.pack('>i', 2), # Num topics
- ])
-
- topic1 = b"".join([
- struct.pack(">h6s", 6, b"topic1"), # Topic for the request
- struct.pack(">i", 2), # Two partitions
- struct.pack(">i", 0), # Partition 0
- struct.pack(">i", 1), # Partition 1
- ])
-
- topic2 = b"".join([
- struct.pack(">h6s", 6, b"topic2"), # Topic for the request
- struct.pack(">i", 1), # One partitions
- struct.pack(">i", 2), # Partition 2
- ])
-
- expected1 = b"".join([ header, topic1, topic2 ])
- expected2 = b"".join([ header, topic2, topic1 ])
-
- encoded = KafkaProtocol.encode_offset_fetch_request(b"client_id", 42, b"group_id", [
- OffsetFetchRequest(b"topic1", 0),
- OffsetFetchRequest(b"topic1", 1),
- OffsetFetchRequest(b"topic2", 2),
- ])
-
- self.assertIn(encoded, [ expected1, expected2 ])
-
- @unittest.skip('needs updating for new protocol classes')
- def test_decode_offset_fetch_response(self):
- encoded = b"".join([
- struct.pack(">i", 42), # Correlation ID
- struct.pack(">i", 1), # One topics
- struct.pack(">h6s", 6, b"topic1"),# First topic
- struct.pack(">i", 2), # Two partitions
-
- struct.pack(">i", 2), # Partition 2
- struct.pack(">q", 4), # Offset 4
- struct.pack(">h4s", 4, b"meta"), # Metadata
- struct.pack(">h", 0), # No error
-
- struct.pack(">i", 4), # Partition 4
- struct.pack(">q", 8), # Offset 8
- struct.pack(">h4s", 4, b"meta"), # Metadata
- struct.pack(">h", 0), # No error
- ])
-
- results = KafkaProtocol.decode_offset_fetch_response(encoded)
- self.assertEqual(set(results), set([
- OffsetFetchResponse(topic = b'topic1', partition = 2, offset = 4, error = 0, metadata = b"meta"),
- OffsetFetchResponse(topic = b'topic1', partition = 4, offset = 8, error = 0, metadata = b"meta"),
- ]))
-
- @contextmanager
- def mock_create_message_fns(self):
- import kafka.protocol
- with patch.object(kafka.protocol.legacy, "create_message",
- return_value=sentinel.message):
- with patch.object(kafka.protocol.legacy, "create_gzip_message",
- return_value=sentinel.gzip_message):
- with patch.object(kafka.protocol.legacy, "create_snappy_message",
- return_value=sentinel.snappy_message):
- yield
-
- def test_create_message_set(self):
- messages = [(1, "k1"), (2, "k2"), (3, "k3")]
-
- # Default codec is CODEC_NONE. Expect list of regular messages.
- expect = [sentinel.message] * len(messages)
- with self.mock_create_message_fns():
- message_set = create_message_set(messages)
- self.assertEqual(message_set, expect)
-
- # CODEC_NONE: Expect list of regular messages.
- expect = [sentinel.message] * len(messages)
- with self.mock_create_message_fns():
- message_set = create_message_set(messages, CODEC_NONE)
- self.assertEqual(message_set, expect)
-
- # CODEC_GZIP: Expect list of one gzip-encoded message.
- expect = [sentinel.gzip_message]
- with self.mock_create_message_fns():
- message_set = create_message_set(messages, CODEC_GZIP)
- self.assertEqual(message_set, expect)
-
- # CODEC_SNAPPY: Expect list of one snappy-encoded message.
- expect = [sentinel.snappy_message]
- with self.mock_create_message_fns():
- message_set = create_message_set(messages, CODEC_SNAPPY)
- self.assertEqual(message_set, expect)
-
- # Unknown codec should raise UnsupportedCodecError.
- with self.assertRaises(UnsupportedCodecError):
- create_message_set(messages, -1)
+from kafka.protocol.api import RequestHeader
+from kafka.protocol.commit import GroupCoordinatorRequest
+from kafka.protocol.message import Message, MessageSet
+
+
+def test_create_message():
+ payload = b'test'
+ key = b'key'
+ msg = Message(payload, key=key)
+ assert msg.magic == 0
+ assert msg.attributes == 0
+ assert msg.key == key
+ assert msg.value == payload
+
+
+def test_encode_message_v0():
+ message = Message(b'test', key=b'key')
+ encoded = message.encode()
+ expect = b''.join([
+ struct.pack('>i', -1427009701), # CRC
+ struct.pack('>bb', 0, 0), # Magic, flags
+ struct.pack('>i', 3), # Length of key
+ b'key', # key
+ struct.pack('>i', 4), # Length of value
+ b'test', # value
+ ])
+ assert encoded == expect
+
+
+def test_encode_message_v1():
+ message = Message(b'test', key=b'key', magic=1, timestamp=1234)
+ encoded = message.encode()
+ expect = b''.join([
+ struct.pack('>i', 1331087195), # CRC
+ struct.pack('>bb', 1, 0), # Magic, flags
+ struct.pack('>q', 1234), # Timestamp
+ struct.pack('>i', 3), # Length of key
+ b'key', # key
+ struct.pack('>i', 4), # Length of value
+ b'test', # value
+ ])
+ assert encoded == expect
+
+
+def test_decode_message():
+ encoded = b''.join([
+ struct.pack('>i', -1427009701), # CRC
+ struct.pack('>bb', 0, 0), # Magic, flags
+ struct.pack('>i', 3), # Length of key
+ b'key', # key
+ struct.pack('>i', 4), # Length of value
+ b'test', # value
+ ])
+ decoded_message = Message.decode(encoded)
+ msg = Message(b'test', key=b'key')
+ msg.encode() # crc is recalculated during encoding
+ assert decoded_message == msg
+
+
+def test_encode_message_set():
+ messages = [
+ Message(b'v1', key=b'k1'),
+ Message(b'v2', key=b'k2')
+ ]
+ encoded = MessageSet.encode([(0, msg.encode())
+ for msg in messages],
+ size=False)
+ expect = b''.join([
+ struct.pack('>q', 0), # MsgSet Offset
+ struct.pack('>i', 18), # Msg Size
+ struct.pack('>i', 1474775406), # CRC
+ struct.pack('>bb', 0, 0), # Magic, flags
+ struct.pack('>i', 2), # Length of key
+ b'k1', # Key
+ struct.pack('>i', 2), # Length of value
+ b'v1', # Value
+
+ struct.pack('>q', 0), # MsgSet Offset
+ struct.pack('>i', 18), # Msg Size
+ struct.pack('>i', -16383415), # CRC
+ struct.pack('>bb', 0, 0), # Magic, flags
+ struct.pack('>i', 2), # Length of key
+ b'k2', # Key
+ struct.pack('>i', 2), # Length of value
+ b'v2', # Value
+ ])
+ assert encoded == expect
+
+
+def test_decode_message_set():
+ encoded = b''.join([
+ struct.pack('>q', 0), # MsgSet Offset
+ struct.pack('>i', 18), # Msg Size
+ struct.pack('>i', 1474775406), # CRC
+ struct.pack('>bb', 0, 0), # Magic, flags
+ struct.pack('>i', 2), # Length of key
+ b'k1', # Key
+ struct.pack('>i', 2), # Length of value
+ b'v1', # Value
+
+ struct.pack('>q', 1), # MsgSet Offset
+ struct.pack('>i', 18), # Msg Size
+ struct.pack('>i', -16383415), # CRC
+ struct.pack('>bb', 0, 0), # Magic, flags
+ struct.pack('>i', 2), # Length of key
+ b'k2', # Key
+ struct.pack('>i', 2), # Length of value
+ b'v2', # Value
+ ])
+
+ msgs = MessageSet.decode(encoded, bytes_to_read=len(encoded))
+ assert len(msgs) == 2
+ msg1, msg2 = msgs
+
+ returned_offset1, message1_size, decoded_message1 = msg1
+ returned_offset2, message2_size, decoded_message2 = msg2
+
+ assert returned_offset1 == 0
+ message1 = Message(b'v1', key=b'k1')
+ message1.encode()
+ assert decoded_message1 == message1
+
+ assert returned_offset2 == 1
+ message2 = Message(b'v2', key=b'k2')
+ message2.encode()
+ assert decoded_message2 == message2
+
+
+def test_encode_message_header():
+ expect = b''.join([
+ struct.pack('>h', 10), # API Key
+ struct.pack('>h', 0), # API Version
+ struct.pack('>i', 4), # Correlation Id
+ struct.pack('>h', len('client3')), # Length of clientId
+ b'client3', # ClientId
+ ])
+
+ req = GroupCoordinatorRequest[0]('foo')
+ header = RequestHeader(req, correlation_id=4, client_id='client3')
+ assert header.encode() == expect
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