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diff --git a/js/src/tests/test262/built-ins/TypedArrayConstructors/internals/Set/key-is-not-integer.js b/js/src/tests/test262/built-ins/TypedArrayConstructors/internals/Set/key-is-not-integer.js
new file mode 100644
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+++ b/js/src/tests/test262/built-ins/TypedArrayConstructors/internals/Set/key-is-not-integer.js
@@ -0,0 +1,36 @@
+// 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-integer-indexed-exotic-objects-set-p-v-receiver
+description: >
+  Returns true, even if index is not CanonicalNumericIndexString
+info: |
+  9.4.5.5 [[Set]] ( P, V, Receiver)
+
+  ...
+  2. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      i. Perform ? IntegerIndexedElementSet(O, numericIndex, V).
+      ii. Return true.
+  ...
+
+includes: [testTypedArray.js]
+features: [align-detached-buffer-semantics-with-web-reality, Reflect, TypedArray]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA([42]);
+
+  assert.sameValue(Reflect.set(sample, "1.1", 1), true, 'Reflect.set(sample, "1.1", 1) must return true');
+  assert.sameValue(Reflect.set(sample, "0.0001", 1), true, 'Reflect.set(sample, "0.0001", 1) must return true');
+
+  assert.sameValue(sample.hasOwnProperty("1.1"), false, 'sample.hasOwnProperty("1.1") must return false');
+  assert.sameValue(
+    sample.hasOwnProperty("0.0001"),
+    false,
+    'sample.hasOwnProperty("0.0001") must return false'
+  );
+});
+
+reportCompare(0, 0);