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
|
# frozen_string_literal: true
require_relative "../abstract_unit"
module ActiveSupport
module Notifications
class EventedTest < ActiveSupport::TestCase
# we expect all exception types to be handled, so test with the most basic type
class BadListenerException < Exception; end
class Listener
attr_reader :events
def initialize
@events = []
end
def start(name, id, payload)
@events << [:start, name, id, payload]
end
def finish(name, id, payload)
@events << [:finish, name, id, payload]
end
end
class ListenerWithTimedSupport < Listener
def call(name, start, finish, id, payload)
@events << [:call, name, start, finish, id, payload]
end
end
class BadStartListener < Listener
def start(name, id, payload)
raise BadListenerException
end
def finish(name, id, payload)
end
end
class BadFinishListener < Listener
def start(name, id, payload)
end
def finish(name, id, payload)
raise BadListenerException
end
end
def test_evented_listener
notifier = Fanout.new
listener = Listener.new
notifier.subscribe "hi", listener
notifier.start "hi", 1, {}
notifier.start "hi", 2, {}
notifier.finish "hi", 2, {}
notifier.finish "hi", 1, {}
assert_equal 4, listener.events.length
assert_equal [
[:start, "hi", 1, {}],
[:start, "hi", 2, {}],
[:finish, "hi", 2, {}],
[:finish, "hi", 1, {}],
], listener.events
end
def test_evented_listener_no_events
notifier = Fanout.new
listener = Listener.new
notifier.subscribe "hi", listener
notifier.start "world", 1, {}
assert_equal 0, listener.events.length
end
def test_listen_to_everything
notifier = Fanout.new
listener = Listener.new
notifier.subscribe nil, listener
notifier.start "hello", 1, {}
notifier.start "world", 1, {}
notifier.finish "world", 1, {}
notifier.finish "hello", 1, {}
assert_equal 4, listener.events.length
assert_equal [
[:start, "hello", 1, {}],
[:start, "world", 1, {}],
[:finish, "world", 1, {}],
[:finish, "hello", 1, {}],
], listener.events
end
def test_listen_start_multiple_exception_consistency
notifier = Fanout.new
listener = Listener.new
notifier.subscribe nil, BadStartListener.new
notifier.subscribe nil, BadStartListener.new
notifier.subscribe nil, listener
error = assert_raises InstrumentationSubscriberError do
notifier.start "hello", 1, {}
end
assert_instance_of BadListenerException, error.cause
error = assert_raises InstrumentationSubscriberError do
notifier.start "world", 1, {}
end
assert_instance_of BadListenerException, error.cause
notifier.finish "world", 1, {}
notifier.finish "hello", 1, {}
assert_equal 4, listener.events.length
assert_equal [
[:start, "hello", 1, {}],
[:start, "world", 1, {}],
[:finish, "world", 1, {}],
[:finish, "hello", 1, {}],
], listener.events
end
def test_listen_finish_multiple_exception_consistency
notifier = Fanout.new
listener = Listener.new
notifier.subscribe nil, BadFinishListener.new
notifier.subscribe nil, BadFinishListener.new
notifier.subscribe(nil) { |*args| raise "foo" }
notifier.subscribe(nil) { |obj| raise "foo" }
notifier.subscribe(nil, monotonic: true) { |obj| raise "foo" }
notifier.subscribe nil, listener
notifier.start "hello", 1, {}
notifier.start "world", 1, {}
error = assert_raises InstrumentationSubscriberError do
notifier.finish "world", 1, {}
end
assert_equal 5, error.exceptions.count
assert_instance_of BadListenerException, error.cause
error = assert_raises InstrumentationSubscriberError do
notifier.finish "hello", 1, {}
end
assert_equal 5, error.exceptions.count
assert_instance_of BadListenerException, error.cause
assert_equal 4, listener.events.length
assert_equal [
[:start, "hello", 1, {}],
[:start, "world", 1, {}],
[:finish, "world", 1, {}],
[:finish, "hello", 1, {}],
], listener.events
end
def test_evented_listener_priority
notifier = Fanout.new
listener = ListenerWithTimedSupport.new
notifier.subscribe "hi", listener
notifier.start "hi", 1, {}
notifier.finish "hi", 1, {}
assert_equal [
[:start, "hi", 1, {}],
[:finish, "hi", 1, {}]
], listener.events
end
def test_listen_to_regexp
notifier = Fanout.new
listener = Listener.new
notifier.subscribe(/[a-z]*.world/, listener)
notifier.start("hi.world", 1, {})
notifier.finish("hi.world", 2, {})
notifier.start("hello.world", 1, {})
notifier.finish("hello.world", 2, {})
assert_equal [
[:start, "hi.world", 1, {}],
[:finish, "hi.world", 2, {}],
[:start, "hello.world", 1, {}],
[:finish, "hello.world", 2, {}]
], listener.events
end
def test_listen_to_regexp_with_exclusions
notifier = Fanout.new
listener = Listener.new
notifier.subscribe(/[a-z]*.world/, listener)
notifier.unsubscribe("hi.world")
notifier.start("hi.world", 1, {})
notifier.finish("hi.world", 2, {})
notifier.start("hello.world", 1, {})
notifier.finish("hello.world", 2, {})
assert_equal [
[:start, "hello.world", 1, {}],
[:finish, "hello.world", 2, {}]
], listener.events
end
end
end
end
|
