Import Blink layout tests for Promises.

test/webkit/fast/js/Promise-static-cast.js

Index: test/webkit/fast/js/Promise-static-cast.js
diff --git a/test/webkit/indexed-setter-on-global-object.js b/test/webkit/fast/js/Promise-static-cast.js
similarity index 63%
copy from test/webkit/indexed-setter-on-global-object.js
copy to test/webkit/fast/js/Promise-static-cast.js
index 20c70c24f5e5b8f887cc8ec8f1d4fbd99431c45d..48049398b069171b2876bff78be06999a507ab04 100644
--- a/test/webkit/indexed-setter-on-global-object.js
+++ b/test/webkit/fast/js/Promise-static-cast.js
@@ -1,4 +1,4 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
+// 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
@@ -21,16 +21,36 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-description(
-"Tests that creating an indexed setter on the global object doesn't break things."
-);
+// Flags: --harmony
+'use strict';
+description('Test Promise.cast');
 
-var thingy;
+var result = undefined;
+var result2 = undefined;
 
-this.__defineSetter__(42, function(value) {
-    thingy = value;
-});
+var resolve;
+var value = new Promise(function (r) { resolve = r;} );
+var promise = Promise.cast(value);
+
+// If [[IsPromise]] is true, Promise.cast simply returns argument.
+shouldBe('promise', 'value');
 
-this[42] = "foo";
+promise.then(function(res) {
+  result = res;
+  shouldBeEqualToString('result', 'hello');
+
+  return Promise.cast(42).then(function (res) {
+      result2 = res;
+      shouldBe('result2', '42');
+  });
+}).then(function () {
+  testPassed('fulfilled');
+  finishJSTest();
+}, function() {
+  testFailed('rejected');
+  finishJSTest();
+});
 
-shouldBe("thingy", "\"foo\"");
+resolve('hello');
+shouldBe('result', 'undefined');
+shouldBe('result2', 'undefined');