options-localeMatcher-valid.js (1717B)
1 // Copyright (C) 2019 Leo Balter. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 esid: sec-Intl.DisplayNames 6 description: > 7 Valid options for localeMatcher 8 info: | 9 Intl.DisplayNames ( locales , options ) 10 11 1. If NewTarget is undefined, throw a TypeError exception. 12 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%", 13 « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »). 14 ... 15 4. Let options be ? ToObject(options). 16 ... 17 8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit"). 18 ... 19 10. Let style be ? GetOption(options, "style", "string", « "narrow", "short", "long" », "long"). 20 ... 21 12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », undefined). 22 13. If type is undefined, throw a TypeError exception. 23 ... 24 15. Let fallback be ? GetOption(options, "fallback", "string", « "code", "none" », "code"). 25 ... 26 27 GetOption ( options, property, type, values, fallback ) 28 29 1. Let value be ? Get(options, property). 30 ... 31 features: [Intl.DisplayNames] 32 locale: [en] 33 ---*/ 34 35 // results for option values verified in the tests for resolvedOptions 36 37 const localeMatchers = [ 38 undefined, 39 'lookup', 40 'best fit' 41 ]; 42 43 localeMatchers.forEach(localeMatcher => { 44 const obj = new Intl.DisplayNames('en', { localeMatcher, type: 'language' }); 45 46 assert(obj instanceof Intl.DisplayNames, `instanceof check - ${localeMatcher}`); 47 assert.sameValue(Object.getPrototypeOf(obj), Intl.DisplayNames.prototype, `proto check - ${localeMatcher}`); 48 }); 49 50 reportCompare(0, 0);