Promise-init.js 2.75 KB
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// Copyright 2014 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1.  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 2.  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Flags: --harmony
'use strict';
description('Test Promise construction.');

var thisInInit;
var resolve, reject;
var result;
var promise = new Promise(function(newResolve, newReject) {
  thisInInit = this;
  resolve = newResolve;
  reject = newReject;
});

shouldBeTrue('promise instanceof Promise');
shouldBe('promise.constructor', 'Promise');
shouldBe('thisInInit', 'undefined');
shouldBeTrue('resolve instanceof Function');
shouldBeTrue('reject instanceof Function');

shouldThrow('new Promise()', '"TypeError: Promise resolver undefined is not a function"');
shouldThrow('new Promise(37)', '"TypeError: Promise resolver 37 is not a function"');

try {
  promise = new Promise(function() { throw Error('foo'); });
  testPassed('promise = new Promise(function() { throw Error("foo"); }) did not throw exception.');
} catch (e) {
  testFailed('new Promise(function() { throw Error(\'foo\'); }) should not throw an exception.');
}

promise.then(undefined, function(localResult) {
  result = localResult;
  shouldBeEqualToString('result.message', 'foo');
});

new Promise(function(resolve) {
  resolve("hello");
  throw Error("foo");
}).then(function(localResult) {
  result = localResult;
  testPassed('fulfilled');
  shouldBeEqualToString('result', 'hello');
  finishJSTest();
}, function(localResult) {
  result = localResult;
  testFailed('rejected');
  finishJSTest();
});