node/test/parallel/test-next-tick.js

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

var complete = 0;

process.nextTick(function() {
  complete++;
  process.nextTick(function() {
    complete++;
    process.nextTick(function() {
      complete++;
    });
  });
});

setTimeout(function() {
  process.nextTick(function() {
    complete++;
  });
}, 50);

process.nextTick(function() {
  complete++;
});

var obj = {};

process.nextTick(function(a, b) {
  assert.equal(a, 42);
  assert.equal(b, obj);
}, 42, obj);

process.on('exit', function() {
  assert.equal(5, complete);
  process.nextTick(function() {
    throw new Error('this should not occur');
  });
});