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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
|
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
#
from qpid.client import Client, Closed
from qpid.queue import Empty
from qpid.datatypes import Message, RangedSet
from qpid.testlib import testrunner, TestBase010
class TxTests(TestBase010):
"""
Tests for 'methods' on the amqp tx 'class'
"""
def test_commit(self):
"""
Test that commited publishes are delivered and commited acks are not re-delivered
"""
session2 = self.conn.session("worker", 2)
self.perform_txn_work(session2, "tx-commit-a", "tx-commit-b", "tx-commit-c")
session2.tx_commit()
session2.close()
#use a different session with new subscriptions to ensure
#there is no redelivery of acked messages:
session = self.session
session.tx_select()
self.subscribe(session, queue="tx-commit-a", destination="qa")
queue_a = session.incoming("qa")
self.subscribe(session, queue="tx-commit-b", destination="qb")
queue_b = session.incoming("qb")
self.subscribe(session, queue="tx-commit-c", destination="qc")
queue_c = session.incoming("qc")
#check results
for i in range(1, 5):
msg = queue_c.get(timeout=1)
self.assertEqual("TxMessage %d" % i, msg.body)
session.message_accept(RangedSet(msg.id))
msg = queue_b.get(timeout=1)
self.assertEqual("TxMessage 6", msg.body)
session.message_accept(RangedSet(msg.id))
msg = queue_a.get(timeout=1)
self.assertEqual("TxMessage 7", msg.body)
session.message_accept(RangedSet(msg.id))
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.body)
except Empty: None
#cleanup
session.tx_commit()
def test_auto_rollback(self):
"""
Test that a session closed with an open transaction is effectively rolled back
"""
session2 = self.conn.session("worker", 2)
queue_a, queue_b, queue_c, ignore = self.perform_txn_work(session2, "tx-autorollback-a", "tx-autorollback-b", "tx-autorollback-c")
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.body)
except Empty: None
session2.close()
session = self.session
session.tx_select()
self.subscribe(session, queue="tx-autorollback-a", destination="qa")
queue_a = session.incoming("qa")
self.subscribe(session, queue="tx-autorollback-b", destination="qb")
queue_b = session.incoming("qb")
self.subscribe(session, queue="tx-autorollback-c", destination="qc")
queue_c = session.incoming("qc")
#check results
for i in range(1, 5):
msg = queue_a.get(timeout=1)
self.assertEqual("Message %d" % i, msg.body)
session.message_accept(RangedSet(msg.id))
msg = queue_b.get(timeout=1)
self.assertEqual("Message 6", msg.body)
session.message_accept(RangedSet(msg.id))
msg = queue_c.get(timeout=1)
self.assertEqual("Message 7", msg.body)
session.message_accept(RangedSet(msg.id))
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.body)
except Empty: None
#cleanup
session.tx_commit()
def test_rollback(self):
"""
Test that rolled back publishes are not delivered and rolled back acks are re-delivered
"""
session = self.session
queue_a, queue_b, queue_c, consumed = self.perform_txn_work(session, "tx-rollback-a", "tx-rollback-b", "tx-rollback-c")
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.body)
except Empty: None
session.tx_rollback()
#need to release messages to get them redelivered now:
session.message_release(consumed)
#check results
for i in range(1, 5):
msg = queue_a.get(timeout=1)
self.assertEqual("Message %d" % i, msg.body)
session.message_accept(RangedSet(msg.id))
msg = queue_b.get(timeout=1)
self.assertEqual("Message 6", msg.body)
session.message_accept(RangedSet(msg.id))
msg = queue_c.get(timeout=1)
self.assertEqual("Message 7", msg.body)
session.message_accept(RangedSet(msg.id))
for q in [queue_a, queue_b, queue_c]:
try:
extra = q.get(timeout=1)
self.fail("Got unexpected message: " + extra.body)
except Empty: None
#cleanup
session.tx_commit()
def perform_txn_work(self, session, name_a, name_b, name_c):
"""
Utility method that does some setup and some work under a transaction. Used for testing both
commit and rollback
"""
#setup:
session.queue_declare(queue=name_a, exclusive=True, auto_delete=True)
session.queue_declare(queue=name_b, exclusive=True, auto_delete=True)
session.queue_declare(queue=name_c, exclusive=True, auto_delete=True)
key = "my_key_" + name_b
topic = "my_topic_" + name_c
session.exchange_bind(queue=name_b, exchange="amq.direct", binding_key=key)
session.exchange_bind(queue=name_c, exchange="amq.topic", binding_key=topic)
dp = session.delivery_properties(routing_key=name_a)
for i in range(1, 5):
mp = session.message_properties(message_id="msg%d" % i)
session.message_transfer(message=Message(dp, mp, "Message %d" % i))
dp = session.delivery_properties(routing_key=key)
mp = session.message_properties(message_id="msg6")
session.message_transfer(destination="amq.direct", message=Message(dp, mp, "Message 6"))
dp = session.delivery_properties(routing_key=topic)
mp = session.message_properties(message_id="msg7")
session.message_transfer(destination="amq.topic", message=Message(dp, mp, "Message 7"))
session.tx_select()
#consume and ack messages
acked = RangedSet()
self.subscribe(session, queue=name_a, destination="sub_a")
queue_a = session.incoming("sub_a")
for i in range(1, 5):
msg = queue_a.get(timeout=1)
acked.add(msg.id)
self.assertEqual("Message %d" % i, msg.body)
self.subscribe(session, queue=name_b, destination="sub_b")
queue_b = session.incoming("sub_b")
msg = queue_b.get(timeout=1)
self.assertEqual("Message 6", msg.body)
acked.add(msg.id)
sub_c = self.subscribe(session, queue=name_c, destination="sub_c")
queue_c = session.incoming("sub_c")
msg = queue_c.get(timeout=1)
self.assertEqual("Message 7", msg.body)
acked.add(msg.id)
session.message_accept(acked)
dp = session.delivery_properties(routing_key=topic)
#publish messages
for i in range(1, 5):
mp = session.message_properties(message_id="tx-msg%d" % i)
session.message_transfer(destination="amq.topic", message=Message(dp, mp, "TxMessage %d" % i))
dp = session.delivery_properties(routing_key=key)
mp = session.message_properties(message_id="tx-msg6")
session.message_transfer(destination="amq.direct", message=Message(dp, mp, "TxMessage 6"))
dp = session.delivery_properties(routing_key=name_a)
mp = session.message_properties(message_id="tx-msg7")
session.message_transfer(message=Message(dp, mp, "TxMessage 7"))
return queue_a, queue_b, queue_c, acked
def subscribe(self, session=None, **keys):
session = session or self.session
consumer_tag = keys["destination"]
session.message_subscribe(**keys)
session.message_flow(destination=consumer_tag, unit=0, value=0xFFFFFFFF)
session.message_flow(destination=consumer_tag, unit=1, value=0xFFFFFFFF)
def complete(self, session, msg):
session.receiver._completed.add(msg.id)#TODO: this may be done automatically
session.channel.session_completed(session.receiver._completed)
|
