| // Copyright (C) 2021 André Bargull. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-intl.supportedvaluesof |
| description: > |
| The returned "calendar" values can be used with DateTimeFormat. |
| info: | |
| Intl.supportedValuesOf ( key ) |
| |
| 1. Let key be ? ToString(key). |
| 2. If key is "calendar", then |
| a. Let list be ! AvailableCalendars( ). |
| ... |
| 9. Return ! CreateArrayFromList( list ). |
| |
| AvailableCalendars ( ) |
| The AvailableCalendars abstract operation returns a List, ordered as if an |
| Array of the same values had been sorted using %Array.prototype.sort% using |
| undefined as comparefn, that contains unique calendar types identifying the |
| calendars for which the implementation provides the functionality of |
| Intl.DateTimeFormat objects. The list must include "gregory". |
| includes: [testIntl.js] |
| locale: [en] |
| features: [Intl-enumeration] |
| ---*/ |
| |
| const calendars = Intl.supportedValuesOf("calendar"); |
| |
| for (let calendar of calendars) { |
| let obj = new Intl.DateTimeFormat("en", {calendar}); |
| assert.sameValue(obj.resolvedOptions().calendar, calendar, |
| `${calendar} is supported by DateTimeFormat`); |
| } |
| |
| for (let calendar of allCalendars()) { |
| let obj = new Intl.DateTimeFormat("en", {calendar}); |
| if (obj.resolvedOptions().calendar === calendar) { |
| assert(calendars.includes(calendar), |
| `${calendar} supported but not returned by supportedValuesOf`); |
| } else { |
| assert(!calendars.includes(calendar), |
| `${calendar} not supported but returned by supportedValuesOf`); |
| } |
| } |