diff --git a/test/built-ins/Promise/race/resolve-element-function-extensible.js b/test/built-ins/Promise/race/resolve-element-function-extensible.js
deleted file mode 100644
index 4e6a4bc3c0..0000000000
--- a/test/built-ins/Promise/race/resolve-element-function-extensible.js
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (C) 2020 Rick Waldron. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-promise.race-resolve-element-functions
-description: The [[Extensible]] slot of Promise.race Resolve Element 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.
----*/
-
-let resolveElementFunction;
-let thenable = {
-  then(fulfill) {
-    resolveElementFunction = fulfill;
-  }
-};
-
-function NotPromise(executor) {
-  executor(() => {}, () => {});
-}
-NotPromise.resolve = function(v) {
-  return v;
-};
-Promise.race.call(NotPromise, [thenable]);
-
-assert(Object.isExtensible(resolveElementFunction));
diff --git a/test/built-ins/Promise/race/resolve-element-function-name.js b/test/built-ins/Promise/race/resolve-element-function-name.js
deleted file mode 100644
index 78a741628d..0000000000
--- a/test/built-ins/Promise/race/resolve-element-function-name.js
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (C) 2020 Rick Waldron. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-promise.race-resolve-element-functions
-description: The `name` property of Promise.race Resolve Element functions
-info: |
-  A promise resolve function is an anonymous built-in function.
-
-  17 ECMAScript Standard Built-in Objects:
-    Every built-in function object, including constructors, has a `name`
-    property whose value is a String. Functions that are identified as
-    anonymous functions use the empty string as the value of the `name`
-    property.
-    Unless otherwise specified, the `name` property of a built-in function
-    object has the attributes { [[Writable]]: *false*, [[Enumerable]]: *false*,
-    [[Configurable]]: *true* }.
-includes: [propertyHelper.js]
----*/
-
-let resolveElementFunction;
-let thenable = {
-  then(fulfill) {
-    resolveElementFunction = fulfill;
-  }
-};
-
-function NotPromise(executor) {
-  executor(() => {}, () => {});
-}
-NotPromise.resolve = function(v) {
-  return v;
-};
-Promise.race.call(NotPromise, [thenable]);
-
-verifyProperty(resolveElementFunction, "name", {
-  value: "", writable: false, enumerable: false, configurable: true
-});
diff --git a/test/built-ins/Promise/race/resolve-element-function-nonconstructor.js b/test/built-ins/Promise/race/resolve-element-function-nonconstructor.js
deleted file mode 100644
index b745f0ea42..0000000000
--- a/test/built-ins/Promise/race/resolve-element-function-nonconstructor.js
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (C) 2020 Rick Waldron. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-promise.race-resolve-element-functions
-description: Promise.race Resolve Element functions are not constructors
-info: |
-  17 ECMAScript Standard Built-in Objects:
-    Built-in function objects that are not identified as constructors do not
-    implement the [[Construct]] internal method unless otherwise specified
-    in the description of a particular function.
----*/
-
-let resolveElementFunction;
-let thenable = {
-  then(fulfill) {
-    resolveElementFunction = fulfill;
-  }
-};
-
-function NotPromise(executor) {
-  executor(() => {}, () => {});
-}
-NotPromise.resolve = function(v) {
-  return v;
-};
-Promise.race.call(NotPromise, [thenable]);
-
-assert.sameValue(Object.prototype.hasOwnProperty.call(resolveElementFunction, 'prototype'), false);
-assert.throws(TypeError, () => {
-  new resolveElementFunction();
-});
diff --git a/test/built-ins/Promise/race/resolve-element-function-prototype.js b/test/built-ins/Promise/race/resolve-element-function-prototype.js
deleted file mode 100644
index bfefeb4903..0000000000
--- a/test/built-ins/Promise/race/resolve-element-function-prototype.js
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (C) 2020 Rick Waldron. All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-esid: sec-promise.race-resolve-element-functions
-description: The [[Prototype]] of Promise.race Resolve Element functions
-info: |
-  17 ECMAScript Standard Built-in Objects:
-    Unless otherwise specified every built-in function and every built-in
-    constructor has the Function prototype object, which is the initial
-    value of the expression Function.prototype (19.2.3), as the value of
-    its [[Prototype]] internal slot.
----*/
-
-let resolveElementFunction;
-let thenable = {
-  then(fulfill) {
-    resolveElementFunction = fulfill;
-  }
-};
-
-function NotPromise(executor) {
-  executor(() => {}, () => {});
-}
-NotPromise.resolve = function(v) {
-  return v;
-};
-Promise.race.call(NotPromise, [thenable]);
-
-assert.sameValue(Object.getPrototypeOf(resolveElementFunction), Function.prototype);
diff --git a/test/language/expressions/arrow-function/extensibility.js b/test/language/expressions/arrow-function/extensibility.js
new file mode 100644
index 0000000000..580efb4ceb
--- /dev/null
+++ b/test/language/expressions/arrow-function/extensibility.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-arrow-function-definitions-runtime-semantics-evaluation
+description: The [[Extensible]] slot of arrow functions
+info: |
+  15.3.4 Runtime Semantics: InstantiateArrowFunctionExpression
+    [...]
+    4. Let closure be OrdinaryFunctionCreate(%Function.prototype%, sourceText,
+       ArrowParameters, ConciseBody, lexical-this, scope).
+
+  10.2.3 OrdinaryFunctionCreate ( functionPrototype, sourceText, ParameterList, Body, thisMode, Scope )
+    [...]
+    3. Let F be ! OrdinaryObjectCreate(functionPrototype, internalSlotsList).
+
+  10.1.12 OrdinaryObjectCreate ( proto [ , additionalInternalSlotsList ] )
+    1. Let internalSlotsList be « [[Prototype]], [[Extensible]] ».
+    2. If additionalInternalSlotsList is present, append each of its elements
+       to internalSlotsList.
+    3. Let O be ! MakeBasicObject(internalSlotsList).
+
+  7.3.1 MakeBasicObject ( internalSlotsList )
+    [...]
+    6. If internalSlotsList contains [[Extensible]], set obj.[[Extensible]] to
+       true.
+---*/
+
+assert(Object.isExtensible(() => {}));