1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/supportedLocalesOf-unicode-extensions-ignored.js b/js/src/tests/test262/intl402/supportedLocalesOf-unicode-extensions-ignored.js
new file mode 100644
index 0000000000..e390d5db0d
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+++ b/js/src/tests/test262/intl402/supportedLocalesOf-unicode-extensions-ignored.js
@@ -0,0 +1,39 @@
+// Copyright 2012 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 9.2.6_4_b
+description: >
+    Tests that Unicode locale extension sequences do not affect
+    whether a locale is considered supported, but are reported back.
+author: Norbert Lindenberg
+includes: [testIntl.js]
+---*/
+
+testWithIntlConstructors(function (Constructor) {
+
+    // this test should work equally for both matching algorithms
+    ["lookup", "best fit"].forEach(function (matcher) {
+        var opt = {localeMatcher: matcher};
+        var info = getLocaleSupportInfo(Constructor, opt);
+        var allLocales = info.supported.concat(info.byFallback, info.unsupported);
+        allLocales.forEach(function (locale) {
+            var validExtension = "-u-co-phonebk-nu-latn";
+            var invalidExtension = "-u-nu-invalid";
+            var supported1 = Constructor.supportedLocalesOf([locale], opt);
+            var supported2 = Constructor.supportedLocalesOf([locale + validExtension], opt);
+            var supported3 = Constructor.supportedLocalesOf([locale + invalidExtension], opt);
+            if (supported1.length === 1) {
+                assert.sameValue(supported2.length, 1, "#1.1: Presence of Unicode locale extension sequence affects whether locale " + locale + " is considered supported with matcher " + matcher + ".");
+                assert.sameValue(supported3.length, 1, "#1.2: Presence of Unicode locale extension sequence affects whether locale " + locale + " is considered supported with matcher " + matcher + ".");
+                assert.sameValue(supported2[0], locale + validExtension, "#2.1: Unicode locale extension sequence is not correctly returned for locale " + locale + " with matcher " + matcher + ".");
+                assert.sameValue(supported3[0], locale + invalidExtension, "#2.2: Unicode locale extension sequence is not correctly returned for locale " + locale + " with matcher " + matcher + ".");
+            } else {
+                assert.sameValue(supported2.length, 0, "#3.1: Presence of Unicode locale extension sequence affects whether locale " + locale + " is considered supported with matcher " + matcher + ".");
+                assert.sameValue(supported3.length, 0, "#3.2: Presence of Unicode locale extension sequence affects whether locale " + locale + " is considered supported with matcher " + matcher + ".");
+            }
+        });
+    });
+});
+
+reportCompare(0, 0);