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import os
from kafka.common import (
FetchRequest, OffsetCommitRequest, OffsetFetchRequest,
KafkaTimeoutError, ProduceRequest
)
from kafka.protocol import create_message
from test.fixtures import ZookeeperFixture, KafkaFixture
from test.testutil import KafkaIntegrationTestCase, kafka_versions
class TestKafkaClientIntegration(KafkaIntegrationTestCase):
@classmethod
def setUpClass(cls): # noqa
if not os.environ.get('KAFKA_VERSION'):
return
cls.zk = ZookeeperFixture.instance()
cls.server = KafkaFixture.instance(0, cls.zk.host, cls.zk.port)
@classmethod
def tearDownClass(cls): # noqa
if not os.environ.get('KAFKA_VERSION'):
return
cls.server.close()
cls.zk.close()
@kafka_versions("all")
def test_consume_none(self):
fetch = FetchRequest(self.bytes_topic, 0, 0, 1024)
fetch_resp, = self.client.send_fetch_request([fetch])
self.assertEqual(fetch_resp.error, 0)
self.assertEqual(fetch_resp.topic, self.bytes_topic)
self.assertEqual(fetch_resp.partition, 0)
messages = list(fetch_resp.messages)
self.assertEqual(len(messages), 0)
@kafka_versions("all")
def test_ensure_topic_exists(self):
# assume that self.topic was created by setUp
# if so, this should succeed
self.client.ensure_topic_exists(self.topic, timeout=1)
# ensure_topic_exists should fail with KafkaTimeoutError
with self.assertRaises(KafkaTimeoutError):
self.client.ensure_topic_exists(b"this_topic_doesnt_exist", timeout=0)
@kafka_versions('all')
def test_send_produce_request_maintains_request_response_order(self):
self.client.ensure_topic_exists(b'foo')
self.client.ensure_topic_exists(b'bar')
requests = [
ProduceRequest(
b'foo', 0,
[create_message(b'a'), create_message(b'b')]),
ProduceRequest(
b'bar', 1,
[create_message(b'a'), create_message(b'b')]),
ProduceRequest(
b'foo', 1,
[create_message(b'a'), create_message(b'b')]),
ProduceRequest(
b'bar', 0,
[create_message(b'a'), create_message(b'b')]),
]
responses = self.client.send_produce_request(requests)
while len(responses):
request = requests.pop()
response = responses.pop()
self.assertEqual(request.topic, response.topic)
self.assertEqual(request.partition, response.partition)
####################
# Offset Tests #
####################
@kafka_versions("0.8.1", "0.8.1.1", "0.8.2.1")
def test_commit_fetch_offsets(self):
req = OffsetCommitRequest(self.bytes_topic, 0, 42, b"metadata")
(resp,) = self.client.send_offset_commit_request(b"group", [req])
self.assertEqual(resp.error, 0)
req = OffsetFetchRequest(self.bytes_topic, 0)
(resp,) = self.client.send_offset_fetch_request(b"group", [req])
self.assertEqual(resp.error, 0)
self.assertEqual(resp.offset, 42)
self.assertEqual(resp.metadata, b"") # Metadata isn't stored for now
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