JSTests/test262/test/intl402/Locale/constructor-options-language-grandfathered.js

// 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`);