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require 'test/unit'
class TestFiber < Test::Unit::TestCase
def test_normal
f = Fiber.current
assert_equal(:ok2,
Fiber.new(:ok1){|e|
assert_equal(:ok1, e)
assert_equal(f, Fiber.prev)
Fiber.pass :ok2
}.pass)
end
def test_term
assert_equal(:ok, Fiber.new{:ok}.pass)
assert_equal([:a, :b, :c, :d, :e],
Fiber.new{
Fiber.new{
Fiber.new{
Fiber.new{
[:a]
}.pass + [:b]
}.pass + [:c]
}.pass + [:d]
}.pass + [:e])
end
def test_many_fibers
max = 10000
assert_equal(max, max.times{
Fiber.new{}
})
assert_equal(max,
max.times{|i|
Fiber.new{
}.pass
}
)
end
def test_error
assert_raise(ArgumentError){
Fiber.new # Fiber without block
}
assert_raise(RuntimeError){
f = Fiber.new{}
Thread.new{f.pass}.join # Fiber passing across thread
}
end
def test_loop
ary = []
f2 = nil
f1 = Fiber.new{
ary << f2.pass(:foo)
:bar
}
f2 = Fiber.new{
ary << f1.pass(:baz)
:ok
}
assert_equal(:ok, f1.pass)
assert_equal([:baz, :bar], ary)
end
end
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