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diff --git a/js/src/tests/test262/built-ins/Promise/executor-function-extensible.js b/js/src/tests/test262/built-ins/Promise/executor-function-extensible.js
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index 0000000000..901795ecac
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+++ b/js/src/tests/test262/built-ins/Promise/executor-function-extensible.js
@@ -0,0 +1,23 @@
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 25.4.1.5.1
+description: The [[Extensible]] slot of GetCapabilitiesExecutor functions
+info: |
+  17 ECMAScript Standard Built-in Objects:
+    Unless specified otherwise, the [[Extensible]] internal slot
+    of a built-in object initially has the value true.
+---*/
+
+var executorFunction;
+
+function NotPromise(executor) {
+  executorFunction = executor;
+  executor(function() {}, function() {});
+}
+Promise.resolve.call(NotPromise);
+
+assert(Object.isExtensible(executorFunction));
+
+reportCompare(0, 0);