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muontrap

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Keep your ports contained

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muontrap test muontrap_test.exs
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test/muontrap_test.exs 

defmodule MuonTrapTest do

  use ExUnit.Case

  import MuonTrapTestHelpers



  doctest MuonTrap



  test "closing the port kills the process" do

    port =

      Port.open({:spawn_executable, MuonTrap.muontrap_path()}, args: ["./test/do_nothing.test"])



    os_pid = os_pid(port)

    assert is_os_pid_around?(os_pid)



    Port.close(port)



    assert !is_os_pid_around?(os_pid)

  end



  test "closing the port kills a process that ignores sigterm" do

    port =

      Port.open({:spawn_executable, MuonTrap.muontrap_path()}, args: ["test/ignore_sigterm.test"])



    os_pid = os_pid(port)

    assert is_os_pid_around?(os_pid)

    Port.close(port)



    assert !is_os_pid_around?(os_pid)

  end



  test "delaying the SIGKILL" do

    port =

      Port.open(

        {:spawn_executable, MuonTrap.muontrap_path()},

        args: ["--delay-to-sigkill", "250000", "test/ignore_sigterm.test"]

      )



    os_pid = os_pid(port)

    assert is_os_pid_around?(os_pid)

    Port.close(port)



    # process should be around for 250ms, so it should be around here.

    assert is_os_pid_around?(os_pid)



    Process.sleep(300)



    assert !is_os_pid_around?(os_pid)

  end

end