require 'test/unit' require 'timeout' class TestSignal < Test::Unit::TestCase def have_fork? begin Process.fork {} return true rescue NotImplementedError return false end end def test_signal return unless Process.respond_to?(:kill) begin x = 0 oldtrap = Signal.trap(:INT) {|sig| x = 2 } Process.kill :INT, Process.pid 10.times do break if 2 == x sleep 0.1 end assert_equal 2, x Signal.trap(:INT) { raise "Interrupt" } ex = assert_raise(RuntimeError) { Process.kill :INT, Process.pid sleep 0.1 } assert_kind_of Exception, ex assert_match(/Interrupt/, ex.message) ensure Signal.trap :INT, oldtrap if oldtrap end end def test_exit_action return unless have_fork? # skip this test begin r, w = IO.pipe r0, w0 = IO.pipe pid = Process.fork { Signal.trap(:USR1, "EXIT") w0.close w.syswrite("a") Thread.start { sleep(2) } r0.sysread(4096) } r.sysread(1) sleep 0.1 assert_nothing_raised("[ruby-dev:26128]") { Process.kill(:USR1, pid) begin Timeout.timeout(3) { Process.waitpid pid } rescue Timeout::Error Process.kill(:TERM, pid) raise end } ensure r.close w.close r0.close w0.close end end def test_invalid_signal_name return unless Process.respond_to?(:kill) assert_raise(ArgumentError) { Process.kill(:XXXXXXXXXX, $$) } end def test_signal_exception assert_raise(ArgumentError) { SignalException.new } assert_raise(ArgumentError) { SignalException.new(-1) } assert_raise(ArgumentError) { SignalException.new(:XXXXXXXXXX) } Signal.list.each do |signm, signo| next if signm == "EXIT" assert_equal(SignalException.new(signm).signo, signo) assert_equal(SignalException.new(signm.to_sym).signo, signo) assert_equal(SignalException.new(signo).signo, signo) end end def test_interrupt assert_raise(Interrupt) { raise Interrupt.new } end def test_signal2 return unless Process.respond_to?(:kill) begin x = false oldtrap = Signal.trap(:INT) {|sig| x = true } GC.start assert_raise(ArgumentError) { Process.kill } Timeout.timeout(10) do x = false Process.kill(SignalException.new(:INT).signo, $$) nil until x x = false Process.kill("INT", $$) nil until x x = false Process.kill("SIGINT", $$) nil until x x = false o = Object.new def o.to_str; "SIGINT"; end Process.kill(o, $$) nil until x end assert_raise(ArgumentError) { Process.kill(Object.new, $$) } ensure Signal.trap(:INT, oldtrap) if oldtrap end end def test_trap return unless Process.respond_to?(:kill) begin oldtrap = Signal.trap(:INT) {|sig| } assert_raise(ArgumentError) { Signal.trap } assert_raise(SecurityError) do s = proc {}.taint Signal.trap(:INT, s) end # FIXME! Signal.trap(:INT, nil) Signal.trap(:INT, "") Signal.trap(:INT, "SIG_IGN") Signal.trap(:INT, "IGNORE") Signal.trap(:INT, "SIG_DFL") Signal.trap(:INT, "SYSTEM_DEFAULT") Signal.trap(:INT, "EXIT") Signal.trap(:INT, "xxxxxx") Signal.trap(:INT, "xxxx") Signal.trap(SignalException.new(:INT).signo, "SIG_DFL") assert_raise(ArgumentError) { Signal.trap(-1, "xxxx") } o = Object.new def o.to_str; "SIGINT"; end Signal.trap(o, "SIG_DFL") assert_raise(ArgumentError) { Signal.trap("XXXXXXXXXX", "SIG_DFL") } ensure Signal.trap(:INT, oldtrap) if oldtrap end end def test_kill_immediately_before_termination return unless have_fork? # skip this test r, w = IO.pipe pid = Process.fork do r.close Signal.trap(:USR1) { w.syswrite("foo") } Process.kill :USR1, $$ end w.close assert_equal(r.read, "foo") end end