diff -r 000000000000 -r 6474c204b198 js/src/tests/Intl/NumberFormat/significantDigitsOfZero.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/Intl/NumberFormat/significantDigitsOfZero.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,36 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+// -- test that NumberFormat correctly formats 0 with various numbers of significant digits
+
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var testData = [
+    {minimumSignificantDigits: 1, maximumSignificantDigits: 1, expected: "0"},
+    {minimumSignificantDigits: 1, maximumSignificantDigits: 2, expected: "0"},
+    {minimumSignificantDigits: 1, maximumSignificantDigits: 3, expected: "0"},
+    {minimumSignificantDigits: 1, maximumSignificantDigits: 4, expected: "0"},
+    {minimumSignificantDigits: 1, maximumSignificantDigits: 5, expected: "0"},
+    {minimumSignificantDigits: 2, maximumSignificantDigits: 2, expected: "0.0"},
+    {minimumSignificantDigits: 2, maximumSignificantDigits: 3, expected: "0.0"},
+    {minimumSignificantDigits: 2, maximumSignificantDigits: 4, expected: "0.0"},
+    {minimumSignificantDigits: 2, maximumSignificantDigits: 5, expected: "0.0"},
+    {minimumSignificantDigits: 3, maximumSignificantDigits: 3, expected: "0.00"},
+    {minimumSignificantDigits: 3, maximumSignificantDigits: 4, expected: "0.00"},
+    {minimumSignificantDigits: 3, maximumSignificantDigits: 5, expected: "0.00"},
+];
+
+for (var i = 0; i < testData.length; i++) {
+    var min = testData[i].minimumSignificantDigits;
+    var max = testData[i].maximumSignificantDigits;
+    var options = {minimumSignificantDigits: min, maximumSignificantDigits: max};
+    var format = new Intl.NumberFormat("en-US", options);
+    assertEq(format.format(0), testData[i].expected,
+             "Wrong formatted string for 0 with " +
+             "minimumSignificantDigits " + min +
+             ", maximumSignificantDigits " + max +
+             ": expected \"" + expected +
+             "\", actual \"" + actual + "\"");
+}
+
+reportCompare(true, true);