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diff --git a/test/built-ins/Promise/prototype/then/capability-executor-called-twice.js b/test/built-ins/Promise/prototype/then/capability-executor-called-twice.js
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+++ b/test/built-ins/Promise/prototype/then/capability-executor-called-twice.js
@@ -0,0 +1,96 @@
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es6id: 25.4.5.3
+description: >
+  Throws a TypeError if capabilities executor already called with non-undefined values.
+info: >
+  Promise.prototype.then ( onFulfilled , onRejected )
+
+  ...
+  5. Let promiseCapability be NewPromiseCapability(C).
+  6. ReturnIfAbrupt(promiseCapability).
+  ...
+
+  25.4.1.5.1 GetCapabilitiesExecutor Functions
+    ...
+    3. If promiseCapability.[[Resolve]] is not undefined, throw a TypeError exception.
+    4. If promiseCapability.[[Reject]] is not undefined, throw a TypeError exception.
+    5. Set promiseCapability.[[Resolve]] to resolve.
+    6. Set promiseCapability.[[Reject]] to reject.
+    ...
+---*/
+
+var constructorFunction;
+
+var promise = new class extends Promise {
+  constructor(executor) {
+    if (constructorFunction) {
+      constructorFunction(executor);
+      return {};
+    }
+    return super(executor);
+  }
+}(function(){});
+
+var checkPoint = "";
+constructorFunction = function(executor) {
+  checkPoint += "a";
+  executor();
+  checkPoint += "b";
+  executor(function(){}, function(){});
+  checkPoint += "c";
+};
+promise.then();
+assert.sameValue(checkPoint, "abc", "executor initially called with no arguments");
+
+var checkPoint = "";
+constructorFunction = function(executor) {
+  checkPoint += "a";
+  executor(undefined, undefined);
+  checkPoint += "b";
+  executor(function(){}, function(){});
+  checkPoint += "c";
+};
+promise.then();
+assert.sameValue(checkPoint, "abc", "executor initially called with (undefined, undefined)");
+
+var checkPoint = "";
+assert.throws(TypeError, function() {
+  constructorFunction = function(executor) {
+    checkPoint += "a";
+    executor(undefined, function(){});
+    checkPoint += "b";
+    executor(function(){}, function(){});
+    checkPoint += "c";
+  };
+  promise.then();
+}, "executor initially called with (undefined, function)");
+assert.sameValue(checkPoint, "ab", "executor initially called with (undefined, function)");
+
+var checkPoint = "";
+assert.throws(TypeError, function() {
+  constructorFunction = function(executor) {
+    checkPoint += "a";
+    executor(function(){}, undefined);
+    checkPoint += "b";
+    executor(function(){}, function(){});
+    checkPoint += "c";
+  };
+  promise.then();
+}, "executor initially called with (function, undefined)");
+assert.sameValue(checkPoint, "ab", "executor initially called with (function, undefined)");
+
+var checkPoint = "";
+assert.throws(TypeError, function() {
+  constructorFunction = function(executor) {
+    checkPoint += "a";
+    executor("invalid value", 123);
+    checkPoint += "b";
+    executor(function(){}, function(){});
+    checkPoint += "c";
+  };
+  promise.then();
+}, "executor initially called with (String, Number)");
+assert.sameValue(checkPoint, "ab", "executor initially called with (String, Number)");