node/test/simple/test-signal-unregister.js

var common = require('../common');
var assert = require('assert');

var childKilled = false, done = false,
    spawn = require('child_process').spawn,
    util = require('util'),
    child;

var join = require('path').join;

child = spawn(process.argv[0], [join(common.fixturesDir, 'should_exit.js')]);
child.addListener('exit', function() {
  if (!done) childKilled = true;
});

setTimeout(function() {
  console.log('Sending SIGINT');
  child.kill('SIGINT');
  setTimeout(function() {
    console.log('Chance has been given to die');
    done = true;
    if (!childKilled) {
      // Cleanup
      console.log('Child did not die on SIGINT, sending SIGTERM');
      child.kill('SIGTERM');
    }
  }, 200);
}, 200);

process.addListener('exit', function() {
  assert.ok(childKilled);
});