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|
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
f2 = nil
f1 = Fiber.new do |v|
Fiber.yield v
f2.transfer
end
f2 = Fiber.new do
f1.transfer(1)
f1.transfer(1)
Fiber.yield 2
end
assert_equal 1, f2.resume
assert_raise(FiberError) { f2.resume }
assert_equal 2, f2.transfer
assert_raise(FiberError) { f1.resume }
f1.transfer
f2.resume
assert_false f1.alive?
assert_false f2.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') {
Fiber.new{|*x|x}.resume(1) == [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.resume
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 {
Fiber.yield f2.resume
result = :f1
}
f2 = Fiber.new {
result = :to_root
root.transfer :from_f2
result = :f2
}
assert_equal :from_f2, f1.resume
assert_equal :to_root, result
assert_equal :f2, f2.transfer
assert_equal :f2, result
assert_false f2.alive?
assert_equal :f1, f1.resume
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
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