node/test/disabled/test-idle-watcher.js

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

var complete = false;
var idle = new process.IdleWatcher();
idle.callback = function() {
  complete = true;
  idle.stop();
};
idle.setPriority(process.EVMAXPRI);
idle.start();

process.on('exit', function() {
  assert.ok(complete);
});