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require 'test/unit'
require 'timeout'
begin
require 'io/nonblock'
rescue LoadError
end
class TestIONonblock < Test::Unit::TestCase
def test_flush
IO.pipe {|r, w|
return if flush_test(r, w)
}
require 'socket';
Socket.pair(:INET, :STREAM) {|s1, s2|
return if flush_test(s1, s2)
}
skip "nonblocking IO did not work"
end
def flush_test(r, w)
begin
w.nonblock = true
rescue Errno::EBADF
return false
end
w.sync = false
w << "b"
w.flush
w << "a" * 4096
result = ""
timeout(10) {
t0 = Thread.new {
Thread.pass
w.close
}
t = Thread.new {
while (Thread.pass; s = r.read(4096))
result << s
end
}
begin
w.flush # assert_raise(IOError, "[ruby-dev:24985]") {w.flush}
rescue Errno::EBADF, IOError
# ignore [ruby-dev:35638]
end
assert_nothing_raised {t.join}
t0.join
}
assert_equal(4097, result.size)
true
end
end if IO.method_defined?(:nonblock)
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