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
|
assert('Fiber.new') {
f = Fiber.new{}
f.class == Fiber
}
assert('Fiber#resume') {
f = Fiber.new{|x| x == 2}
f.resume(2)
}
assert('Fiber#alive?') {
f = Fiber.new{ Fiber.yield }
f.resume
r1 = f.alive?
f.resume
r2 = f.alive?
r1 == true and r2 == false
}
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') {
f = Fiber.new{|x| Fiber.yield(x == 3)}
f.resume(3)
}
assert('Fiber iteration') {
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
}
a == [1,9,2,8,3,7]
}
assert('Fiber with splat in the block argument list') {
Fiber.new{|*x|x}.resume(1) == [1]
}
assert('Fiber raises on resume when dead') {
r1 = true
begin
f = Fiber.new{}
f.resume
r1 = f.alive?
f.resume
false
rescue => e1
true
end
}
assert('Yield raises when called on root fiber') {
begin
Fiber.yield
false
rescue => e1
true
end
}
assert('Double resume of Fiber') do
f1 = Fiber.new {}
f2 = Fiber.new {
f1.resume
assert_raise(RuntimeError) { 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(RuntimeError) { f2.resume } }
f2 = Fiber.new {
f1.resume
Fiber.yield 0
}
assert_equal 0, f2.resume
f2.resume
assert_false f1.alive?
assert_false f2.alive?
end
|
