1 files changed, 85 insertions, 0 deletions
diff --git a/addon-sdk/source/test/test-l10n-plural-rules.js b/addon-sdk/source/test/test-l10n-plural-rules.js
new file mode 100644
index 000000000..953d977a4
--- /dev/null
+++ b/addon-sdk/source/test/test-l10n-plural-rules.js
@@ -0,0 +1,85 @@
+/* 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/. */
+ "use strict";
+
+const { getRulesForLocale } = require("sdk/l10n/plural-rules");
+
+// For more information, please visit unicode website:
+// http://unicode.org/repos/cldr-tmp/trunk/diff/supplemental/language_plural_rules.html
+
+function map(assert, f, n, form) {
+  assert.equal(f(n), form, n + " maps to '" + form + "'");
+}
+
+exports.testFrench = function(assert) {
+  let f = getRulesForLocale("fr");
+  map(assert, f, -1, "other");
+  map(assert, f, 0, "one");
+  map(assert, f, 1, "one");
+  map(assert, f, 1.5, "one");
+  map(assert, f, 2, "other");
+  map(assert, f, 100, "other");
+}
+
+exports.testEnglish = function(assert) {
+  let f = getRulesForLocale("en");
+  map(assert, f, -1, "other");
+  map(assert, f, 0, "other");
+  map(assert, f, 1, "one");
+  map(assert, f, 1.5, "other");
+  map(assert, f, 2, "other");
+  map(assert, f, 100, "other");
+}
+
+exports.testArabic = function(assert) {
+  let f = getRulesForLocale("ar");
+  map(assert, f, -1, "other");
+  map(assert, f, 0, "zero");
+  map(assert, f, 0.5, "other");
+
+  map(assert, f, 1, "one");
+  map(assert, f, 1.5, "other");
+
+  map(assert, f, 2, "two");
+  map(assert, f, 2.5, "other");
+
+  map(assert, f, 3, "few");
+  map(assert, f, 3.5, "few"); // I'd expect it to be 'other', but the unicode.org
+                            // algorithm computes 'few'.
+  map(assert, f, 5, "few");
+  map(assert, f, 10, "few");
+  map(assert, f, 103, "few");
+  map(assert, f, 105, "few");
+  map(assert, f, 110, "few");
+  map(assert, f, 203, "few");
+  map(assert, f, 205, "few");
+  map(assert, f, 210, "few");
+
+  map(assert, f, 11, "many");
+  map(assert, f, 50, "many");
+  map(assert, f, 99, "many");
+  map(assert, f, 111, "many");
+  map(assert, f, 150, "many");
+  map(assert, f, 199, "many");
+
+  map(assert, f, 100, "other");
+  map(assert, f, 101, "other");
+  map(assert, f, 102, "other");
+  map(assert, f, 200, "other");
+  map(assert, f, 201, "other");
+  map(assert, f, 202, "other");
+}
+
+exports.testJapanese = function(assert) {
+  // Japanese doesn't have plural forms.
+  let f = getRulesForLocale("ja");
+  map(assert, f, -1, "other");
+  map(assert, f, 0, "other");
+  map(assert, f, 1, "other");
+  map(assert, f, 1.5, "other");
+  map(assert, f, 2, "other");
+  map(assert, f, 100, "other");
+}
+
+require('sdk/test').run(exports);