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# frozen_string_literal: true
require 'test/unit'
require_relative 'scheduler'
class TestFiberIO < Test::Unit::TestCase
MESSAGE = "Hello World"
def test_read
skip "UNIXSocket is not defined!" unless defined?(UNIXSocket)
i, o = UNIXSocket.pair
unless i.nonblock? && o.nonblock?
i.close
o.close
skip "I/O is not non-blocking!"
end
message = nil
thread = Thread.new do
scheduler = Scheduler.new
Fiber.set_scheduler scheduler
Fiber.schedule do
message = i.read(20)
i.close
end
Fiber.schedule do
o.write("Hello World")
o.close
end
end
thread.join
assert_equal MESSAGE, message
assert_predicate(i, :closed?)
assert_predicate(o, :closed?)
end
def test_heavy_read
skip unless defined?(UNIXSocket)
16.times.map do
Thread.new do
i, o = UNIXSocket.pair
scheduler = Scheduler.new
Fiber.set_scheduler scheduler
Fiber.schedule do
i.read(20)
i.close
end
Fiber.schedule do
o.write("Hello World")
o.close
end
end
end.each(&:join)
end
def test_epipe_on_read
skip "UNIXSocket is not defined!" unless defined?(UNIXSocket)
i, o = UNIXSocket.pair
unless i.nonblock? && o.nonblock?
i.close
o.close
skip "I/O is not non-blocking!"
end
error = nil
thread = Thread.new do
scheduler = Scheduler.new
Fiber.set_scheduler scheduler
Fiber.schedule do
begin
i.close
o.write(MESSAGE)
rescue => error
# Saved into error.
end
end
end
thread.join
i.close
o.close
assert_kind_of Errno::EPIPE, error
end
end
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