tor-browser

The Tor Browser
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constructor-options-language-valid.js (2163B)

      1 // Copyright 2018 André Bargull; Igalia, S.L. All rights reserved.
      2 // This code is governed by the BSD license found in the LICENSE file.
      3 
      4 /*---
      5 esid: sec-intl.locale
      6 description: >
      7    Verify valid language option values (various)
      8 info: |
      9    Intl.Locale( tag [, options] )
     10    10. If options is undefined, then
     11    11. Else
     12        a. Let options be ? ToObject(options).
     13    12. Set tag to ? ApplyOptionsToTag(tag, options).
     14 
     15    ApplyOptionsToTag( tag, options )
     16    ...
     17    2. If IsStructurallyValidLanguageTag(tag) is false, throw a RangeError exception.
     18    3. Let language be ? GetOption(options, "language", "string", undefined, undefined).
     19    4. If language is not undefined, then
     20       a. If language does not match the unicode_language_subtag production, throw a RangeError exception.
     21 
     22    IsStructurallyValidLanguageTag ( locale )
     23 
     24    The IsStructurallyValidLanguageTag abstract operation verifies that the
     25    locale argument (which must be a String value)
     26 
     27    represents a well-formed Unicode BCP 47 Locale Identifier" as specified in
     28    Unicode Technical Standard 35 section 3.2, or successor,
     29 
     30 features: [Intl.Locale]
     31 ---*/
     32 
     33 const validLanguageOptions = [
     34  [{ toString() { return 'de' } }, 'de'],
     35 ];
     36 for (const [language, expected] of validLanguageOptions) {
     37  let expect = expected || 'en';
     38 
     39  assert.sameValue(
     40    new Intl.Locale('en', {language}).toString(),
     41    expect,
     42    `new Intl.Locale('en', {language: "${language}"}).toString() returns "${expect}"`
     43  );
     44 
     45  expect = (expected || 'en') + '-US';
     46  assert.sameValue(
     47    new Intl.Locale('en-US', {language}).toString(),
     48    expect,
     49    `new Intl.Locale('en-US', {language: "${language}"}).toString() returns "${expect}"`
     50  );
     51 
     52  assert.throws(RangeError, () => new Intl.Locale('en-els', {language}));
     53 
     54 }
     55 
     56 const invalidLanguageOptions = [
     57    null,
     58    'zh-cmn',
     59    'ZH-CMN',
     60    'abcd',
     61 ];
     62 for (const language of invalidLanguageOptions) {
     63  assert.throws(RangeError, () => new Intl.Locale('en', {language}));
     64  assert.throws(RangeError, () => new Intl.Locale('en-US', {language}));
     65  assert.throws(RangeError, () => new Intl.Locale('en-els', {language}));
     66 }
     67 
     68 reportCompare(0, 0);