test262/test/intl402/Locale/constructor-options-script-valid.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: |
    Intl.Locale( tag [, options] )
    10. If options is undefined, then
    11. Else
        a. Let options be ? ToObject(options).
    12. Set tag to ? ApplyOptionsToTag(tag, options).

    ApplyOptionsToTag( tag, options )
    ...
    5. Let script be ? GetOption(options, "script", "string", undefined, undefined).
    ...
    9. If tag matches neither the privateuse nor the grandfathered production, then
      ...
      c. If script is not undefined, then
        i. If tag does not contain a script production, then
          1. Set tag to the concatenation of the language production of tag, "-", script, and the rest of tag.
        ii. Else,
          1. Set tag to tag with the substring corresponding to the script production replaced by the string script.


features: [Intl.Locale]
---*/

const validScriptOptions = [
  [undefined, undefined],
  [null, "Null"],
  ["bali", "Bali"],
  ["Bali", "Bali"],
  ["bALI", "BALI"], // TODO REVIEW: is this the correct case regularization?
  [{ toString() { return "Brai" } }, "Brai"],
];
for (const [script, expected] of validScriptOptions) {
  let options = { script };
  assert.sameValue(
    new Intl.Locale("en", options).toString(),
    expected ? ("en-" + expected) : "en",
    `new Intl.Locale("en", options).toString() equals the value of ${expected}`
  );

  assert.sameValue(
    new Intl.Locale("en-DK", options).toString(),
    (expected ? ("en-" + expected) : "en") + "-DK",
    `new Intl.Locale("en", options).toString() equals the value of ${expected}`
  );

  assert.sameValue(
    new Intl.Locale("en-Cyrl", options).toString(),
    expected ? ("en-" + expected) : "en-Cyrl",
    `new Intl.Locale("en-Cyrl", options).toString() equals the value of ${expected}`
  );
}