1 files changed, 44 insertions, 0 deletions
diff --git a/js/src/tests/non262/Intl/supportedValuesOf-collation.js b/js/src/tests/non262/Intl/supportedValuesOf-collation.js
new file mode 100644
index 0000000000..626bb28c20
--- /dev/null
+++ b/js/src/tests/non262/Intl/supportedValuesOf-collation.js
@@ -0,0 +1,44 @@
+// |reftest| skip-if(!this.hasOwnProperty("Intl"))
+
+const collations = Intl.supportedValuesOf("collation");
+
+assertEq(new Set(collations).size, collations.length, "No duplicates are present");
+assertEqArray(collations, [...collations].sort(), "The list is sorted");
+
+const typeRE = /^[a-z0-9]{3,8}(-[a-z0-9]{3,8})*$/;
+for (let collation of collations) {
+  assertEq(typeRE.test(collation), true, `${collation} matches the 'type' production`);
+}
+
+for (let collation of collations) {
+  assertEq(new Intl.Locale("und", {collation}).collation, collation, `${collation} is canonicalised`);
+}
+
+// Not all locales support all possible collations, so test the minimal set to
+// cover all supported collations.
+const locales = [
+  "en", // "emoji", "eor"
+  "ar", // compat
+  "de", // phonebk
+  "es", // trad
+  "ko", // searchjl
+  "ln", // phonetic
+  "si", // dict
+  "sv", // reformed
+  "zh", // big5han, gb2312, pinyin, stroke, unihan, zhuyin
+];
+
+for (let collation of collations) {
+  let supported = false;
+  for (let locale of locales) {
+    let obj = new Intl.Collator(locale, {collation});
+    if (obj.resolvedOptions().collation === collation) {
+      supported = true;
+    }
+  }
+
+  assertEq(supported, true, `${collation} is supported by Collator`);
+}
+
+if (typeof reportCompare === "function")
+  reportCompare(true, true);