1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Math/sign/sign-specialVals.js b/js/src/tests/test262/built-ins/Math/sign/sign-specialVals.js
new file mode 100644
index 0000000000..aec756e173
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Math/sign/sign-specialVals.js
@@ -0,0 +1,22 @@
+// Copyright 2015 Microsoft Corporation. All rights reserved.
+// This code is governed by the license found in the LICENSE file.
+
+/*---
+description: >
+  Returns the sign of the x, indicating whether x is positive, negative or zero.
+es6id: 20.2.2.29
+---*/
+
+assert.sameValue(Math.sign(NaN), NaN, "NaN");
+assert.sameValue(Math.sign(-0), -0, "-0");
+assert.sameValue(Math.sign(0), 0, "0");
+
+assert.sameValue(Math.sign(-0.000001), -1, "-0.000001");
+assert.sameValue(Math.sign(-1), -1, "-1");
+assert.sameValue(Math.sign(-Infinity), -1, "-Infinity");
+
+assert.sameValue(Math.sign(0.000001), 1, "0.000001");
+assert.sameValue(Math.sign(1), 1, "1");
+assert.sameValue(Math.sign(Infinity), 1, "Infinity");
+
+reportCompare(0, 0);