src/v8/test/webkit/fast/js/Promise-chained-then.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 chained Promise.prototype.then.');

var resolve;
var promise = new Promise(function (r) {resolve = r;});
var result;

promise.then(function(localResult) {  // fulfilled - continue
  testPassed('fulfilled');
  result = localResult;
  shouldBeEqualToString('result', 'hello');
  return 'hello2';
}, function() {
  testFailed('rrejected');
}).then()  // pass through
.then(function(localResult) {  // fulfilled - throw an exception
  testPassed('fulfilled');
  result = localResult;
  shouldBeEqualToString('result', 'hello2');
  throw 'error';
}, function() {
  testFailed('rejected');
}).then(function() {  // rejected - throw an exception
  testFailed('fulfilled');
}, function(localResult) {
  testPassed('rejected');
  result = localResult;
  shouldBeEqualToString('result', 'error');
  throw 'error2';
}).then() // pass through
.then(function() {  // rejected - recover
  testFailed('fulfilled');
}, function(localResult) {
  testPassed('rejected');
  result = localResult;
  shouldBeEqualToString('result', 'error2');
  return 'recovered';
}).then(function(localResult) {  // fulfilled - the last
  testPassed('fulfilled');
  result = localResult;
  shouldBeEqualToString('result', 'recovered');
  finishJSTest();
}, function() {
  testFailed('rejected');
  finishJSTest();
});

resolve('hello');
debug('This should be the first debug output.');