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diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/negative-start.js b/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/negative-start.js
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index 0000000000..21c18b503e
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+++ b/js/src/tests/test262/built-ins/TypedArray/prototype/copyWithin/negative-start.js
@@ -0,0 +1,79 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-%typedarray%.prototype.copywithin
+description: >
+  Set values with negative start argument.
+info: |
+  22.2.3.5 %TypedArray%.prototype.copyWithin (target, start [ , end ] )
+
+  %TypedArray%.prototype.copyWithin is a distinct function that implements the
+  same algorithm as Array.prototype.copyWithin as defined in 22.1.3.3 except
+  that the this object's [[ArrayLength]] internal slot is accessed in place of
+  performing a [[Get]] of "length" and the actual copying of values in step 12
+  must be performed in a manner that preserves the bit-level encoding of the
+  source data.
+
+  ...
+
+  22.1.3.3 Array.prototype.copyWithin (target, start [ , end ] )
+
+  ...
+  6. If relativeStart < 0, let from be max((len + relativeStart), 0); else let
+  from be min(relativeStart, len).
+  ...
+includes: [compareArray.js, testTypedArray.js]
+features: [TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3]).copyWithin(0, -1),
+      [3, 1, 2, 3]
+    ),
+    '[0, 1, 2, 3].copyWithin(0, -1) -> [3, 1, 2, 3]'
+  );
+
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3, 4]).copyWithin(2, -2),
+      [0, 1, 3, 4, 4]
+    ),
+    '[0, 1, 2, 3, 4].copyWithin(2, -2) -> [0, 1, 3, 4, 4]'
+  );
+
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3, 4]).copyWithin(1, -2),
+      [0, 3, 4, 3, 4]
+    ),
+    '[0, 1, 2, 3, 4].copyWithin(1, -2) -> [0, 3, 4, 3, 4]'
+  );
+
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3]).copyWithin(-1, -2),
+      [0, 1, 2, 2]
+    ),
+    '[0, 1, 2, 3].copyWithin(-1, -2) -> [ 0, 1, 2, 2 ]'
+  );
+
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3, 4]).copyWithin(-2, -3),
+      [0, 1, 2, 2, 3]
+    ),
+    '[0, 1, 2, 3, 4].copyWithin(-2, -3) -> [0, 1, 2, 2, 3]'
+  );
+
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3, 4]).copyWithin(-5, -2),
+      [3, 4, 2, 3, 4]
+    ),
+    '[0, 1, 2, 3, 4].copyWithin(-5, -2) -> [3, 4, 2, 3, 4]'
+  );
+});
+
+reportCompare(0, 0);