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// Copyright 2018 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-intl.locale
description: >
Verify valid language option values (undefined)
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 )
2. If IsStructurallyValidLanguageTag(tag) is false, throw a RangeError exception.
...
IsStructurallyValidLanguageTag ( locale )
The IsStructurallyValidLanguageTag abstract operation verifies that the
locale argument (which must be a String value)
represents a well-formed Unicode BCP 47 Locale Identifier" as specified in
Unicode Technical Standard 35 section 3.2, or successor,
features: [Intl.Locale]
---*/
assert.sameValue(
new Intl.Locale('en', {language: undefined}).toString(),
'en',
`new Intl.Locale('en', {language: undefined}).toString() returns "en"`
);
assert.sameValue(
new Intl.Locale('en-US', {language: undefined}).toString(),
'en-US',
`new Intl.Locale('en-US', {language: undefined}).toString() returns "en-US"`
);
assert.throws(RangeError, () => new Intl.Locale('en-els', {language: undefined}));
reportCompare(0, 0);