// Copyright (C) 2021 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-Intl.DisplayNames description: > Return abrupt completion from an invalid fallback option info: | Intl.DisplayNames ( locales , options ) 1. If NewTarget is undefined, throw a TypeError exception. 2. Let displayNames be ? OrdinaryCreateFromConstructor(NewTarget, "%DisplayNamesPrototype%", « [[InitializedDisplayNames]], [[Locale]], [[Style]], [[Type]], [[Fallback]], [[Fields]] »). ... 4. Let options be ? ToObject(options). ... 8. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit"). ... 12. Let type be ? GetOption(options, "type", "string", « "language", "region", "script", "currency" », "language"). 13. If type is undefined, throw a TypeError exception. ... 24. Let languageDisplay be ? GetOption(options, "languageDisplay", "string", « "dialect", "standard" », "dialect"). ... GetOption ( options, property, type, values, fallback ) 1. Let value be ? Get(options, property). 2. If value is not undefined, then ... c. If type is "string", then i. Let value be ? ToString(value). d. If values is not undefined, then i. If values does not contain an element equal to value, throw a RangeError exception. ... features: [Intl.DisplayNames-v2] locale: [en] ---*/ assert.throws(RangeError, () => { new Intl.DisplayNames('en', {languageDisplay: 'err', type: 'language'}); }, 'err'); assert.throws(RangeError, () => { new Intl.DisplayNames('en', {languageDisplay: 'standar', type: 'language'}); }, 'standar, not standard'); assert.throws(RangeError, () => { new Intl.DisplayNames('en', {languageDisplay: null, type: 'language'}); }, 'null'); assert.throws(RangeError, () => { new Intl.DisplayNames('en', {languageDisplay: '', type: 'language'}); }, 'the empty string'); assert.throws(RangeError, () => { new Intl.DisplayNames('en', {languageDisplay: ['dialect', 'standard'], type: 'language'}); }, 'an array with the valid options is not necessarily valid'); reportCompare(0, 0);