1 files changed, 35 insertions, 0 deletions
diff --git a/js/src/tests/test262/intl402/Locale/constructor-options-language-grandfathered.js b/js/src/tests/test262/intl402/Locale/constructor-options-language-grandfathered.js
new file mode 100644
index 0000000000..0d73349aa2
--- /dev/null
+++ b/js/src/tests/test262/intl402/Locale/constructor-options-language-grandfathered.js
@@ -0,0 +1,35 @@
+// Copyright 2018 André Bargull; Igalia, S.L. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.locale
+description: >
+  Checks error cases for the options argument to the Locale
+  constructor.
+info: |
+  ApplyOptionsToTag( tag, options )
+  ...
+  3. Let language be ? GetOption(options, "language", "string", undefined, undefined).
+  4. If language is not undefined, then
+    a. If language does not match the language production, throw a RangeError exception.
+    b. If language matches the grandfathered production, throw a RangeError exception.
+  ...
+
+features: [Intl.Locale]
+---*/
+
+assert.throws(RangeError, function() {
+  new Intl.Locale("nb", {
+    language: "no-bok",
+  });
+}, `new Intl.Locale("nb", {language: "no-bok"}) throws RangeError`);
+
+assert.throws(RangeError, function() {
+  new Intl.Locale("nb", {
+    language: "no-bok",
+    region: "NO",
+  });
+}, `new Intl.Locale("nb", {language: "no-bok", region: "NO"}) throws RangeError`);
+
+
+reportCompare(0, 0);