LayoutTests/js/Promise-then.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <script src="../resources/js-test-pre.js"></script>
 </head>
 <body>
 <div id="description"></div>
 <div id="console"></div>
 <script>
 description('Test Promise.');

 window.jsTestIsAsync = true;

 var resolver;

 var firstPromise = new Promise(function(newResolver) {
   window.thisInInit = this;
   resolver = newResolver;
 });

 var secondPromise = firstPromise.then(function(result) {
   window.thisInFulfillCallback = this;
   shouldBeFalse('thisInFulfillCallback === firstPromise');
   shouldBeTrue('thisInFulfillCallback === secondPromise');
   window.result = result;
   shouldBeEqualToString('result', 'hello');
   finishJSTest();
 });

 shouldBeTrue('thisInInit === firstPromise');
 shouldBeTrue('firstPromise instanceof Promise');
 shouldBeTrue('secondPromise instanceof Promise');

 shouldThrow('firstPromise.then(null)', '"TypeError: Expected function or undefined as as first argument"');
 shouldThrow('firstPromise.then(undefined, null)', '"TypeError: Expected function or undefined as as second argument"');
 shouldThrow('firstPromise.then(37)', '"TypeError: Expected function or undefined as as first argument"');

 resolver.fulfill('hello');

 </script>
 <script src="../resources/js-test-post.js"></script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="../resources/js-test-pre.js"></script>
	</head>
	<body>
	<div id="description"></div>
	<div id="console"></div>
	<script>
	description('Test Promise.');

	window.jsTestIsAsync = true;

	var resolver;

	var firstPromise = new Promise(function(newResolver) {
	window.thisInInit = this;
	resolver = newResolver;
	});

	var secondPromise = firstPromise.then(function(result) {
	window.thisInFulfillCallback = this;
	shouldBeFalse('thisInFulfillCallback === firstPromise');
	shouldBeTrue('thisInFulfillCallback === secondPromise');
	window.result = result;
	shouldBeEqualToString('result', 'hello');
	finishJSTest();
	});

	shouldBeTrue('thisInInit === firstPromise');
	shouldBeTrue('firstPromise instanceof Promise');
	shouldBeTrue('secondPromise instanceof Promise');

	shouldThrow('firstPromise.then(null)', '"TypeError: Expected function or undefined as as first argument"');
	shouldThrow('firstPromise.then(undefined, null)', '"TypeError: Expected function or undefined as as second argument"');
	shouldThrow('firstPromise.then(37)', '"TypeError: Expected function or undefined as as first argument"');

	resolver.fulfill('hello');

	</script>
	<script src="../resources/js-test-post.js"></script>
	</body>
	</html>