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require 'test/unit'
require 'timeout'
class TestSignal < Test::Unit::TestCase
def have_fork?
begin
fork{}
true
rescue NotImplementedError
false
end
end
def test_signal
defined?(Process.kill) or return
begin
$x = 0
oldtrap = trap "SIGINT", proc{|sig| $x = 2}
Process.kill "SIGINT", $$
sleep 0.1
assert_equal(2, $x)
trap "SIGINT", proc{raise "Interrupt"}
x = assert_raises(RuntimeError) do
Process.kill "SIGINT", $$
sleep 0.1
end
assert(x)
assert_match(/Interrupt/, x.message)
ensure
trap "SIGINT", oldtrap
end
end
def test_exit_action
return unless have_fork? # snip this test
begin
r, w = IO.pipe
r0, w0 = IO.pipe
pid = fork {
trap(:USR1, "EXIT")
w0.close
w.syswrite("a")
Thread.start { Thread.pass }
r0.sysread(4096)
}
r.sysread(1)
sleep 0.1
assert_nothing_raised("[ruby-dev:26128]") {
Process.kill(:USR1, pid)
begin
Timeout.timeout(1) {
Process.waitpid pid
}
rescue Timeout::Error
Process.kill(:TERM, pid)
raise
end
}
ensure
r.close
w.close
r0.close
w0.close
end
end
end
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