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# frozen_string_literal: false
require 'test/unit'
class TestWait < Test::Unit::TestCase
require '-test-/wait'
def test_wait_for_valid_fd
IO.pipe do |r,w|
rc = IO.io_wait(w, IO::WRITABLE, nil)
assert_equal IO::WRITABLE, rc
end
end
def test_wait_for_invalid_fd
assert_separately [], <<~'RUBY'
require '-test-/wait'
r, w = IO.pipe
r.close
IO.for_fd(w.fileno).close
assert_raise(Errno::EBADF) do
IO.io_wait(w, IO::WRITABLE, nil)
end
RUBY
end
def test_wait_for_closed_pipe
IO.pipe do |r,w|
w.close
rc = IO.io_wait(r, IO::READABLE, nil)
assert_equal IO::READABLE, rc
end
end
end
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