1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
from __future__ import absolute_import
import functools
import operator
import os
import time
import uuid
import pytest
from . import unittest
from kafka import SimpleClient
from kafka.errors import (
LeaderNotAvailableError, KafkaTimeoutError, InvalidTopicError,
NotLeaderForPartitionError, UnknownTopicOrPartitionError,
FailedPayloadsError
)
from kafka.structs import OffsetRequestPayload
from test.fixtures import random_string, version_str_to_tuple, version as kafka_version #pylint: disable=wrong-import-order
def kafka_versions(*versions):
"""
Describe the Kafka versions this test is relevant to.
The versions are passed in as strings, for example:
'0.11.0'
'>=0.10.1.0'
'>0.9', '<1.0' # since this accepts multiple versions args
The current KAFKA_VERSION will be evaluated against this version. If the
result is False, then the test is skipped. Similarly, if KAFKA_VERSION is
not set the test is skipped.
Note: For simplicity, this decorator accepts Kafka versions as strings even
though the similarly functioning `api_version` only accepts tuples. Trying
to convert it to tuples quickly gets ugly due to mixing operator strings
alongside version tuples. While doable when one version is passed in, it
isn't pretty when multiple versions are passed in.
"""
def construct_lambda(s):
if s[0].isdigit():
op_str = '='
v_str = s
elif s[1].isdigit():
op_str = s[0] # ! < > =
v_str = s[1:]
elif s[2].isdigit():
op_str = s[0:2] # >= <=
v_str = s[2:]
else:
raise ValueError('Unrecognized kafka version / operator: %s' % (s,))
op_map = {
'=': operator.eq,
'!': operator.ne,
'>': operator.gt,
'<': operator.lt,
'>=': operator.ge,
'<=': operator.le
}
op = op_map[op_str]
version = version_str_to_tuple(v_str)
return lambda a: op(a, version)
validators = map(construct_lambda, versions)
def real_kafka_versions(func):
@functools.wraps(func)
def wrapper(func, *args, **kwargs):
version = kafka_version()
if not version:
pytest.skip("no kafka version set in KAFKA_VERSION env var")
for f in validators:
if not f(version):
pytest.skip("unsupported kafka version")
return func(*args, **kwargs)
return wrapper
return real_kafka_versions
def current_offset(client, topic, partition, kafka_broker=None):
"""Get the current offset of a topic's partition
"""
try:
offsets, = client.send_offset_request([OffsetRequestPayload(topic,
partition, -1, 1)])
except Exception:
# XXX: We've seen some UnknownErrors here and can't debug w/o server logs
if kafka_broker:
kafka_broker.dump_logs()
raise
else:
return offsets.offsets[0]
class KafkaIntegrationTestCase(unittest.TestCase):
create_client = True
topic = None
zk = None
server = None
def setUp(self):
super(KafkaIntegrationTestCase, self).setUp()
if not os.environ.get('KAFKA_VERSION'):
self.skipTest('Integration test requires KAFKA_VERSION')
if not self.topic:
topic = "%s-%s" % (self.id()[self.id().rindex(".") + 1:], random_string(10))
self.topic = topic
if self.create_client:
self.client = SimpleClient('%s:%d' % (self.server.host, self.server.port))
timeout = time.time() + 30
while time.time() < timeout:
try:
self.client.load_metadata_for_topics(self.topic, ignore_leadernotavailable=False)
if self.client.has_metadata_for_topic(topic):
break
except (LeaderNotAvailableError, InvalidTopicError):
time.sleep(1)
else:
raise KafkaTimeoutError('Timeout loading topic metadata!')
# Ensure topic partitions have been created on all brokers to avoid UnknownPartitionErrors
# TODO: It might be a good idea to move this to self.client.ensure_topic_exists
for partition in self.client.get_partition_ids_for_topic(self.topic):
while True:
try:
req = OffsetRequestPayload(self.topic, partition, -1, 100)
self.client.send_offset_request([req])
break
except (NotLeaderForPartitionError, UnknownTopicOrPartitionError, FailedPayloadsError) as e:
if time.time() > timeout:
raise KafkaTimeoutError('Timeout loading topic metadata!')
time.sleep(.1)
self._messages = {}
def tearDown(self):
super(KafkaIntegrationTestCase, self).tearDown()
if not os.environ.get('KAFKA_VERSION'):
return
if self.create_client:
self.client.close()
def current_offset(self, topic, partition):
try:
offsets, = self.client.send_offset_request([OffsetRequestPayload(topic,
partition, -1, 1)])
except Exception:
# XXX: We've seen some UnknownErrors here and can't debug w/o server logs
self.zk.child.dump_logs()
self.server.child.dump_logs()
raise
else:
return offsets.offsets[0]
def msgs(self, iterable):
return [self.msg(x) for x in iterable]
def msg(self, s):
if s not in self._messages:
self._messages[s] = '%s-%s-%s' % (s, self.id(), str(uuid.uuid4()))
return self._messages[s].encode('utf-8')
def key(self, k):
return k.encode('utf-8')
class Timer(object):
def __enter__(self):
self.start = time.time()
return self
def __exit__(self, *args):
self.end = time.time()
self.interval = self.end - self.start
|
