diff --git a/test/built-ins/Reflect/setPrototypeOf/length.js b/test/built-ins/Reflect/setPrototypeOf/length.js
new file mode 100644
index 0000000000..bcb8d164c6
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/length.js
@@ -0,0 +1,17 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Reflect.setPrototypeOf.length value and property descriptor
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(
+  Reflect.setPrototypeOf.length, 2,
+  'The value of `Reflect.setPrototypeOf.length` is `2`'
+);
+
+verifyNotEnumerable(Reflect.setPrototypeOf, 'length');
+verifyNotWritable(Reflect.setPrototypeOf, 'length');
+verifyConfigurable(Reflect.setPrototypeOf, 'length');
diff --git a/test/built-ins/Reflect/setPrototypeOf/name.js b/test/built-ins/Reflect/setPrototypeOf/name.js
new file mode 100644
index 0000000000..f0a81a0d9e
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/name.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Reflect.setPrototypeOf.name value and property descriptor
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  17 ECMAScript Standard Built-in Objects
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(
+  Reflect.setPrototypeOf.name, 'setPrototypeOf',
+  'The value of `Reflect.setPrototypeOf.name` is `"setPrototypeOf"`'
+);
+
+verifyNotEnumerable(Reflect.setPrototypeOf, 'name');
+verifyNotWritable(Reflect.setPrototypeOf, 'name');
+verifyConfigurable(Reflect.setPrototypeOf, 'name');
diff --git a/test/built-ins/Reflect/setPrototypeOf/proto-is-not-object-and-not-null-throws.js b/test/built-ins/Reflect/setPrototypeOf/proto-is-not-object-and-not-null-throws.js
new file mode 100644
index 0000000000..9f354653aa
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/proto-is-not-object-and-not-null-throws.js
@@ -0,0 +1,30 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Throws a TypeError if proto is not Object or proto is not null.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  2. If Type(proto) is not Object and proto is not null, throw a TypeError
+  exception
+  ...
+---*/
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf({}, undefined);
+});
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf({}, 1);
+});
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf({}, 'string');
+});
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf({}, true);
+});
diff --git a/test/built-ins/Reflect/setPrototypeOf/proto-is-symbol-throws.js b/test/built-ins/Reflect/setPrototypeOf/proto-is-symbol-throws.js
new file mode 100644
index 0000000000..680700fb92
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/proto-is-symbol-throws.js
@@ -0,0 +1,20 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Throws a TypeError if proto is a Symbol
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  2. If Type(proto) is not Object and proto is not null, throw a TypeError
+  exception
+  ...
+features: [Symbol]
+---*/
+
+var s = Symbol(1);
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf({}, s);
+});
diff --git a/test/built-ins/Reflect/setPrototypeOf/return-abrupt-from-result.js b/test/built-ins/Reflect/setPrototypeOf/return-abrupt-from-result.js
new file mode 100644
index 0000000000..b896e20403
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/return-abrupt-from-result.js
@@ -0,0 +1,24 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Return abrupt result.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  3. Return target.[[SetPrototypeOf]](proto).
+features: [Proxy]
+---*/
+
+var target = {};
+var p = new Proxy(target, {
+  setPrototypeOf: function() {
+    throw new Test262Error();
+  }
+});
+
+assert.throws(Test262Error, function() {
+  Reflect.setPrototypeOf(p, {});
+});
diff --git a/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-and-proto-are-the-same.js b/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-and-proto-are-the-same.js
new file mode 100644
index 0000000000..1f5b266b62
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-and-proto-are-the-same.js
@@ -0,0 +1,24 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Return false if target and proto are the same, without setting a new prototype.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  3. Return target.[[SetPrototypeOf]](proto).
+
+  9.1.2 [[SetPrototypeOf]] (V)
+
+  ...
+  8. Repeat while done is false,
+    a. If p is null, let done be true.
+    b. Else, if SameValue(p, O) is true, return false.
+  ...
+---*/
+
+var o1 = {};
+assert.sameValue(Reflect.setPrototypeOf(o1, o1), false);
+assert.sameValue(Object.getPrototypeOf(o1), Object.prototype);
diff --git a/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-is-not-extensible.js b/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-is-not-extensible.js
new file mode 100644
index 0000000000..efa840eeea
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-is-not-extensible.js
@@ -0,0 +1,33 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Return false if target is not extensible, without changing the prototype.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  3. Return target.[[SetPrototypeOf]](proto).
+
+  9.1.2 [[SetPrototypeOf]] (V)
+
+  ...
+  5. If extensible is false, return false.
+  ...
+---*/
+
+var o1 = {};
+Object.preventExtensions(o1);
+assert.sameValue(Reflect.setPrototypeOf(o1, {}), false);
+assert.sameValue(Object.getPrototypeOf(o1), Object.prototype);
+
+var o2 = {};
+Object.preventExtensions(o2);
+assert.sameValue(Reflect.setPrototypeOf(o2, null), false);
+assert.sameValue(Object.getPrototypeOf(o2), Object.prototype);
+
+var o3 = Object.create(null);
+Object.preventExtensions(o3);
+assert.sameValue(Reflect.setPrototypeOf(o3, {}), false);
+assert.sameValue(Object.getPrototypeOf(o3), null);
diff --git a/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-is-prototype-of-proto.js b/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-is-prototype-of-proto.js
new file mode 100644
index 0000000000..a83e64b376
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/return-false-if-target-is-prototype-of-proto.js
@@ -0,0 +1,29 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Return false if target is found as a prototype of proto, without setting.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  3. Return target.[[SetPrototypeOf]](proto).
+
+  9.1.2 [[SetPrototypeOf]] (V)
+
+  ...
+  8. Repeat while done is false,
+    a. If p is null, let done be true.
+    b. Else, if SameValue(p, O) is true, return false.
+    c. Else,
+      i. If the [[GetPrototypeOf]] internal method of p is not the ordinary
+      object internal method defined in 9.1.1, let done be true.
+      ii. Else, let p be the value of p’s [[Prototype]] internal slot.
+  ...
+---*/
+
+var target = {};
+var proto = Object.create(target);
+assert.sameValue(Reflect.setPrototypeOf(target, proto), false);
+assert.sameValue(Object.getPrototypeOf(target), Object.prototype);
diff --git a/test/built-ins/Reflect/setPrototypeOf/return-true-if-new-prototype-is-set.js b/test/built-ins/Reflect/setPrototypeOf/return-true-if-new-prototype-is-set.js
new file mode 100644
index 0000000000..a08f4ba600
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/return-true-if-new-prototype-is-set.js
@@ -0,0 +1,32 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Return true if the new prototype is set.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  3. Return target.[[SetPrototypeOf]](proto).
+
+  9.1.2 [[SetPrototypeOf]] (V)
+
+  ...
+  9. Set the value of the [[Prototype]] internal slot of O to V.
+  10. Return true.
+  ...
+---*/
+
+var o1 = {};
+assert.sameValue(Reflect.setPrototypeOf(o1, null), true);
+assert.sameValue(Object.getPrototypeOf(o1), null);
+
+var o2 = Object.create(null);
+assert.sameValue(Reflect.setPrototypeOf(o2, Object.prototype), true);
+assert.sameValue(Object.getPrototypeOf(o2), Object.prototype);
+
+var o3 = {};
+var proto = {};
+assert.sameValue(Reflect.setPrototypeOf(o3, proto), true);
+assert.sameValue(Object.getPrototypeOf(o3), proto);
diff --git a/test/built-ins/Reflect/setPrototypeOf/return-true-if-proto-is-current.js b/test/built-ins/Reflect/setPrototypeOf/return-true-if-proto-is-current.js
new file mode 100644
index 0000000000..e864715180
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/return-true-if-proto-is-current.js
@@ -0,0 +1,31 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Return true if proto has the same value as current target's prototype.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  ...
+  3. Return target.[[SetPrototypeOf]](proto).
+
+  9.1.2 [[SetPrototypeOf]] (V)
+
+  ...
+  4. If SameValue(V, current), return true.
+  ...
+---*/
+
+var o1 = {};
+Object.preventExtensions(o1);
+assert.sameValue(Reflect.setPrototypeOf(o1, Object.prototype), true);
+
+var o2 = Object.create(null);
+Object.preventExtensions(o2);
+assert.sameValue(Reflect.setPrototypeOf(o2, null), true);
+
+var proto = {};
+var o3 = Object.create(proto);
+Object.preventExtensions(o3);
+assert.sameValue(Reflect.setPrototypeOf(o3, proto), true);
diff --git a/test/built-ins/Reflect/setPrototypeOf/setPrototypeOf.js b/test/built-ins/Reflect/setPrototypeOf/setPrototypeOf.js
new file mode 100644
index 0000000000..3e3d790022
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/setPrototypeOf.js
@@ -0,0 +1,17 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Reflect.setPrototypeOf is configurable, writable and not enumerable.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  17 ECMAScript Standard Built-in Objects
+
+includes: [propertyHelper.js]
+---*/
+
+verifyNotEnumerable(Reflect, 'setPrototypeOf');
+verifyWritable(Reflect, 'setPrototypeOf');
+verifyConfigurable(Reflect, 'setPrototypeOf');
diff --git a/test/built-ins/Reflect/setPrototypeOf/target-is-not-object-throws.js b/test/built-ins/Reflect/setPrototypeOf/target-is-not-object-throws.js
new file mode 100644
index 0000000000..b916c835be
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/target-is-not-object-throws.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Throws a TypeError if target is not an Object.
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  1. If Type(target) is not Object, throw a TypeError exception.
+  ...
+---*/
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf(1, {});
+});
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf(null, {});
+});
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf(undefined, {});
+});
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf('', {});
+});
diff --git a/test/built-ins/Reflect/setPrototypeOf/target-is-symbol-throws.js b/test/built-ins/Reflect/setPrototypeOf/target-is-symbol-throws.js
new file mode 100644
index 0000000000..959a02ff3a
--- /dev/null
+++ b/test/built-ins/Reflect/setPrototypeOf/target-is-symbol-throws.js
@@ -0,0 +1,17 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 26.1.14
+description: >
+  Throws a TypeError if target is a Symbol
+info: >
+  26.1.14 Reflect.setPrototypeOf ( target, proto )
+
+  1. If Type(target) is not Object, throw a TypeError exception.
+  ...
+features: [Symbol]
+---*/
+
+assert.throws(TypeError, function() {
+  Reflect.setPrototypeOf(Symbol(1), {});
+});