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
|
# encoding: utf-8
require "spec_helper"
describe "Multiple non-exclusive consumers per queue" do
#
# Environment
#
include EventedSpec::AMQPSpec
include EventedSpec::SpecHelper
default_options AMQP_OPTS
default_timeout 10
let(:messages) { (0..99).map {|i| "Message #{i}" } }
#
# Examples
#
before :each do
@consumer1_mailbox = []
@consumer2_mailbox = []
@consumer3_mailbox = []
end
context "with equal prefetch levels" do
it "have messages distributed to them in the round-robin manner" do
channel = AMQP::Channel.new
channel.on_error do |ch, channel_close|
raise(channel_close.reply_text)
end
queue = channel.queue("amqpgem.integration.roundrobin.queue1", :auto_delete => true) do
consumer1 = AMQP::Consumer.new(channel, queue)
consumer2 = AMQP::Consumer.new(channel, queue, "#{queue.name}-consumer-#{rand}-#{Time.now}", false, true)
consumer1.consume.on_delivery do |basic_deliver, metadata, payload|
@consumer1_mailbox << payload
end
consumer2.consume(true).on_delivery do |metadata, payload|
@consumer2_mailbox << payload
end
queue.subscribe do |metadata, payload|
@consumer3_mailbox << payload
end
end
exchange = channel.default_exchange
exchange.on_return do |basic_return, metadata, payload|
raise(basic_return.reply_text)
end
EventMachine.add_timer(1.0) do
messages.each do |message|
exchange.publish(message, :mandatory => true, :routing_key => queue.name)
end
end
done(6.5) {
@consumer1_mailbox.size.should == 34
@consumer2_mailbox.size.should == 33
@consumer3_mailbox.size.should == 33
}
end # it
end # context
context "with equal prefetch levels and when queue is server-named" do
it "have messages distributed to them in the round-robin manner" do
channel = AMQP::Channel.new
channel.on_error do |ch, channel_close|
raise(channel_close.reply_text)
end
queue = channel.queue("amqpgem.integration.roundrobin.queue1", :auto_delete => true) do
consumer1 = AMQP::Consumer.new(channel, queue)
consumer2 = AMQP::Consumer.new(channel, queue, "#{queue.name}-consumer-#{rand}-#{Time.now}", false, true)
consumer1.consume.on_delivery do |basic_deliver, metadata, payload|
@consumer1_mailbox << payload
end
consumer2.consume(true).on_delivery do |metadata, payload|
@consumer2_mailbox << payload
end
queue.subscribe do |metadata, payload|
@consumer3_mailbox << payload
end
queue.consumer_tag.should == queue.default_consumer.consumer_tag
end
exchange = channel.default_exchange
exchange.on_return do |basic_return, metadata, payload|
raise(basic_return.reply_text)
end
EventMachine.add_timer(1.0) do
messages.each do |message|
exchange.publish(message, :mandatory => true, :routing_key => queue.name)
end
end
done(5.0) {
@consumer1_mailbox.size.should == 34
@consumer2_mailbox.size.should == 33
@consumer3_mailbox.size.should == 33
}
end # it
end # context
context "with equal prefetch levels and one consumer cancelled mid-flight" do
it "have messages distributed to them in the round-robin manner" do
channel = AMQP::Channel.new
channel.on_error do |ch, channel_close|
raise(channel_close.reply_text)
end
queue = channel.queue("", :auto_delete => true)
consumer1 = AMQP::Consumer.new(channel, queue)
consumer2 = AMQP::Consumer.new(channel, queue)
consumer1.consume.on_delivery do |basic_deliver, metadata, payload|
@consumer1_mailbox << payload
end
consumer2.consume(true).on_delivery do |metadata, payload|
@consumer2_mailbox << payload
end
queue.subscribe do |metadata, payload|
@consumer3_mailbox << payload
end
consumer2.cancel
exchange = channel.default_exchange
exchange.on_return do |basic_return, metadata, payload|
raise(basic_return.reply_text)
end
EventMachine.add_timer(1.0) do
messages.each do |message|
exchange.publish(message, :mandatory => true, :routing_key => queue.name)
end
end
done(5.0) {
@consumer1_mailbox.size.should == 50
@consumer2_mailbox.size.should == 0
@consumer3_mailbox.size.should == 50
}
end # it
end # context
end # describe
|
