src/v8/test/webkit/fast/js/Promise-resolve-state.js

// Copyright 2014 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
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// Flags: --harmony
'use strict';
description('Test whether Promise processes microtasks in the correct order.');

var resolve;
var promise = new Promise(function(r) { resolve = r; });
var promiseState = 'pending';
var promiseResult = undefined;
promise.then(function(result) {
  promiseState = 'fulfilled';
  promiseResult = result;
}, function(result) {
  promiseState = 'rejected';
  promiseResult = result;
});

shouldBeEqualToString('promiseState', 'pending');

resolve('hello');

shouldBeEqualToString('promiseState', 'pending');

promise.then(function() {
  shouldBeEqualToString('promiseState', 'fulfilled');
  shouldBeEqualToString('promiseResult', 'hello');
  finishJSTest();
}, function() {
  testFailed('promise is rejected.');
  finishJSTest();
});