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
|
begin
$fiber_test_activity = __FILE__
assert('Fiber.new') do
f = Fiber.new{}
assert_kind_of Fiber, f
end
assert('Fiber#resume') do
f = Fiber.new{|x| x }
assert_equal 2, f.resume(2)
end
assert('Fiber#transfer') do
ary = []
f2 = nil
f1 = Fiber.new{
ary << f2.transfer(:foo)
:ok
}
f2 = Fiber.new{
ary << f1.transfer(:baz)
:ng
}
assert_equal(:ok, f1.transfer)
assert_equal([:baz], ary)
assert_false f1.alive?
end
assert('Fiber#alive?') do
f = Fiber.new{ Fiber.yield }
f.resume
assert_true f.alive?
f.resume
assert_false f.alive?
end
assert('Fiber#==') do
root = Fiber.current
assert_equal root, root
assert_equal root, Fiber.current
assert_false root != Fiber.current
f = Fiber.new {
assert_false root == Fiber.current
}
f.resume
assert_false f == root
assert_true f != root
end
assert('Fiber.yield') do
f = Fiber.new{|x| Fiber.yield x }
assert_equal 3, f.resume(3)
assert_true f.alive?
end
assert('FiberError') do
assert_equal StandardError, FiberError.superclass
end
assert('Fiber iteration') do
f1 = Fiber.new{
[1,2,3].each{|x| Fiber.yield(x)}
}
f2 = Fiber.new{
[9,8,7].each{|x| Fiber.yield(x)}
}
a = []
3.times {
a << f1.resume
a << f2.resume
}
assert_equal [1,9,2,8,3,7], a
end
assert('Fiber with splat in the block argument list') {
assert_equal([1], Fiber.new{|*x|x}.resume(1))
}
assert('Fiber raises on resume when dead') do
assert_raise(FiberError) do
f = Fiber.new{}
f.resume
assert_false f.alive?
f.resume
end
end
assert('Yield raises when called on root fiber') do
assert_raise(FiberError) { Fiber.yield }
end
assert('Double resume of Fiber') do
f1 = Fiber.new {}
f2 = Fiber.new {
f1.resume
assert_raise(FiberError) { f2.resume }
Fiber.yield 0
}
assert_equal 0, f2.resume
f2.resume
assert_false f1.alive?
assert_false f2.alive?
end
assert('Recursive resume of Fiber') do
f1, f2 = nil, nil
f1 = Fiber.new { assert_raise(FiberError) { f2.resume } }
f2 = Fiber.new {
f1.resume
Fiber.yield 0
}
f3 = Fiber.new {
f2.resume
}
assert_equal 0, f3.resume
f2.resume
assert_false f1.alive?
assert_false f2.alive?
assert_false f3.alive?
end
assert('Root fiber resume') do
root = Fiber.current
assert_raise(FiberError) { root.resume }
f = Fiber.new {
assert_raise(FiberError) { root.resume }
}
f.resume
assert_false f.alive?
end
assert('Fiber without block') do
assert_raise(ArgumentError) { Fiber.new }
end
assert('Transfer to self.') do
result = []
f = Fiber.new { result << :start; f.transfer; result << :end }
f.transfer
assert_equal [:start, :end], result
result = []
f = Fiber.new { result << :start; f.transfer; result << :end }
f.resume
assert_equal [:start, :end], result
end
assert('Resume transferred fiber') do
f = Fiber.new {
assert_raise(FiberError) { f.resume }
}
f.transfer
end
assert('Root fiber transfer.') do
result = nil
root = Fiber.current
f = Fiber.new {
result = :ok
root.transfer
}
f.transfer
assert_true f.alive?
assert_equal :ok, result
end
assert('Break nested fiber with root fiber transfer') do
root = Fiber.current
result = nil
f2 = nil
f1 = Fiber.new {
root.transfer(f2.transfer)
result = :f1
}
f2 = Fiber.new {
result = :to_root
root.transfer :from_f2
result = :f2
}
assert_equal :from_f2, f1.transfer
assert_equal :to_root, result
assert_equal :f2, f2.transfer
assert_equal :f2, result
assert_false f2.alive?
assert_equal nil, f1.transfer
assert_equal :f1, f1.transfer
assert_equal :f1, result
assert_false f1.alive?
end
assert('CRuby Fiber#transfer test.') do
ary = []
f2 = nil
f1 = Fiber.new{
ary << f2.transfer(:foo)
:ok
}
f2 = Fiber.new{
ary << f1.transfer(:baz)
:ng
}
assert_equal :ok, f1.transfer
assert_equal [:baz], ary
end
ensure
$fiber_test_activity = nil
end
|
