1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Math/clz32/infinity.js b/js/src/tests/test262/built-ins/Math/clz32/infinity.js
new file mode 100644
index 0000000000..87c6b6805e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Math/clz32/infinity.js
@@ -0,0 +1,25 @@
+// 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-math.clz32
+description: >
+  Return 32 if x is Infinity or -Infinity
+info: |
+  Math.clz32 ( x )
+
+  1. Let n be ToUint32(x).
+  2. Let p be the number of leading zero bits in the 32-bit binary representation of n.
+  3. Return p.
+
+  7.1.6 ToUint32 ( argument )
+
+  [...]
+  2. If number is NaN, +0, -0, +∞, or -∞, return +0.
+  [...]
+---*/
+
+assert.sameValue(Math.clz32(Infinity), 32, "Infinity");
+assert.sameValue(Math.clz32(-Infinity), 32, "-Infinity");
+
+reportCompare(0, 0);