[270] | 1 | assert('Fiber.new') do
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| 2 | f = Fiber.new{}
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| 3 | assert_kind_of Fiber, f
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| 4 | end
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| 5 |
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| 6 | assert('Fiber#resume') do
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| 7 | f = Fiber.new{|x| x }
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| 8 | assert_equal 2, f.resume(2)
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| 9 | end
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| 10 |
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| 11 | assert('Fiber#transfer') do
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| 12 | f2 = nil
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| 13 | f1 = Fiber.new do |v|
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| 14 | Fiber.yield v
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| 15 | f2.transfer
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| 16 | end
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| 17 | f2 = Fiber.new do
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| 18 | f1.transfer(1)
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| 19 | f1.transfer(1)
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| 20 | Fiber.yield 2
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| 21 | end
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| 22 | assert_equal 1, f2.resume
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| 23 | assert_raise(FiberError) { f2.resume }
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| 24 | assert_equal 2, f2.transfer
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| 25 | assert_raise(FiberError) { f1.resume }
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| 26 | f1.transfer
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| 27 | f2.resume
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| 28 | assert_false f1.alive?
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| 29 | assert_false f2.alive?
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| 30 | end
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| 31 |
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| 32 | assert('Fiber#alive?') do
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| 33 | f = Fiber.new{ Fiber.yield }
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| 34 | f.resume
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| 35 | assert_true f.alive?
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| 36 | f.resume
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| 37 | assert_false f.alive?
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| 38 | end
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| 39 |
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| 40 | assert('Fiber#==') do
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| 41 | root = Fiber.current
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| 42 | assert_equal root, root
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| 43 | assert_equal root, Fiber.current
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| 44 | assert_false root != Fiber.current
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| 45 | f = Fiber.new {
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| 46 | assert_false root == Fiber.current
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| 47 | }
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| 48 | f.resume
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| 49 | assert_false f == root
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| 50 | assert_true f != root
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| 51 | end
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| 52 |
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| 53 | assert('Fiber.yield') do
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| 54 | f = Fiber.new{|x| Fiber.yield x }
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| 55 | assert_equal 3, f.resume(3)
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| 56 | assert_true f.alive?
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| 57 | end
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| 58 |
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| 59 | assert('FiberError') do
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| 60 | assert_equal StandardError, FiberError.superclass
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| 61 | end
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| 62 |
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| 63 | assert('Fiber iteration') do
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| 64 | f1 = Fiber.new{
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| 65 | [1,2,3].each{|x| Fiber.yield(x)}
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| 66 | }
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| 67 | f2 = Fiber.new{
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| 68 | [9,8,7].each{|x| Fiber.yield(x)}
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| 69 | }
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| 70 | a = []
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| 71 | 3.times {
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| 72 | a << f1.resume
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| 73 | a << f2.resume
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| 74 | }
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| 75 | assert_equal [1,9,2,8,3,7], a
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| 76 | end
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| 77 |
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| 78 | assert('Fiber with splat in the block argument list') {
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| 79 | Fiber.new{|*x|x}.resume(1) == [1]
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| 80 | }
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| 81 |
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| 82 | assert('Fiber raises on resume when dead') do
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| 83 | assert_raise(FiberError) do
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| 84 | f = Fiber.new{}
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| 85 | f.resume
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| 86 | assert_false f.alive?
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| 87 | f.resume
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| 88 | end
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| 89 | end
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| 90 |
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| 91 | assert('Yield raises when called on root fiber') do
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| 92 | assert_raise(FiberError) { Fiber.yield }
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| 93 | end
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| 94 |
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| 95 | assert('Double resume of Fiber') do
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| 96 | f1 = Fiber.new {}
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| 97 | f2 = Fiber.new {
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| 98 | f1.resume
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| 99 | assert_raise(FiberError) { f2.resume }
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| 100 | Fiber.yield 0
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| 101 | }
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| 102 | assert_equal 0, f2.resume
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| 103 | f2.resume
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| 104 | assert_false f1.alive?
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| 105 | assert_false f2.alive?
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| 106 | end
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| 107 |
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| 108 | assert('Recursive resume of Fiber') do
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| 109 | f1, f2 = nil, nil
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| 110 | f1 = Fiber.new { assert_raise(FiberError) { f2.resume } }
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| 111 | f2 = Fiber.new {
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| 112 | f1.resume
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| 113 | Fiber.yield 0
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| 114 | }
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| 115 | f3 = Fiber.new {
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| 116 | f2.resume
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| 117 | }
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| 118 | assert_equal 0, f3.resume
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| 119 | f2.resume
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| 120 | assert_false f1.alive?
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| 121 | assert_false f2.alive?
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| 122 | assert_false f3.alive?
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| 123 | end
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| 124 |
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| 125 | assert('Root fiber resume') do
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| 126 | root = Fiber.current
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| 127 | assert_raise(FiberError) { root.resume }
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| 128 | f = Fiber.new {
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| 129 | assert_raise(FiberError) { root.resume }
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| 130 | }
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| 131 | f.resume
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| 132 | assert_false f.alive?
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| 133 | end
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| 134 |
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| 135 | assert('Fiber without block') do
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| 136 | assert_raise(ArgumentError) { Fiber.new }
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| 137 | end
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| 138 |
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| 139 |
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| 140 | assert('Transfer to self.') do
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| 141 | result = []
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| 142 | f = Fiber.new { result << :start; f.transfer; result << :end }
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| 143 | f.transfer
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| 144 | assert_equal [:start, :end], result
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| 145 |
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| 146 | result = []
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| 147 | f = Fiber.new { result << :start; f.transfer; result << :end }
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| 148 | f.resume
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| 149 | assert_equal [:start, :end], result
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| 150 | end
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| 151 |
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| 152 | assert('Resume transferred fiber') do
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| 153 | f = Fiber.new {
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| 154 | assert_raise(FiberError) { f.resume }
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| 155 | }
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| 156 | f.transfer
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| 157 | end
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| 158 |
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| 159 | assert('Root fiber transfer.') do
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| 160 | result = nil
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| 161 | root = Fiber.current
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| 162 | f = Fiber.new {
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| 163 | result = :ok
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| 164 | root.transfer
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| 165 | }
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| 166 | f.resume
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| 167 | assert_true f.alive?
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| 168 | assert_equal :ok, result
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| 169 | end
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| 170 |
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| 171 | assert('Break nested fiber with root fiber transfer') do
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| 172 | root = Fiber.current
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| 173 |
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| 174 | result = nil
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| 175 | f2 = nil
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| 176 | f1 = Fiber.new {
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| 177 | Fiber.yield f2.resume
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| 178 | result = :f1
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| 179 | }
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| 180 | f2 = Fiber.new {
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| 181 | result = :to_root
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| 182 | root.transfer :from_f2
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| 183 | result = :f2
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| 184 | }
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| 185 | assert_equal :from_f2, f1.resume
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| 186 | assert_equal :to_root, result
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| 187 | assert_equal :f2, f2.transfer
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| 188 | assert_equal :f2, result
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| 189 | assert_false f2.alive?
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| 190 | assert_equal :f1, f1.resume
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| 191 | assert_equal :f1, result
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| 192 | assert_false f1.alive?
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| 193 | end
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| 194 |
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| 195 | assert('CRuby Fiber#transfer test.') do
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| 196 | ary = []
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| 197 | f2 = nil
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| 198 | f1 = Fiber.new{
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| 199 | ary << f2.transfer(:foo)
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| 200 | :ok
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| 201 | }
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| 202 | f2 = Fiber.new{
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| 203 | ary << f1.transfer(:baz)
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| 204 | :ng
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| 205 | }
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| 206 | assert_equal :ok, f1.transfer
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| 207 | assert_equal [:baz], ary
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| 208 | end
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