mirror of https://github.com/tc39/test262.git
49 lines
1.9 KiB
JavaScript
49 lines
1.9 KiB
JavaScript
// Copyright (C) 2021 André Bargull. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-intl.supportedvaluesof
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description: >
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The returned "numberingSystem" values can be used with DateTimeFormat.
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info: |
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Intl.supportedValuesOf ( key )
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1. Let key be ? ToString(key).
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...
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5. Else if key is "numberingSystem", then
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a. Let list be ! AvailableNumberingSystems( ).
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...
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9. Return ! CreateArrayFromList( list ).
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AvailableNumberingSystems ( )
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The AvailableNumberingSystems abstract operation returns a List, ordered as
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if an Array of the same values had been sorted using %Array.prototype.sort%
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using undefined as comparefn, that contains unique numbering systems
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identifiers identifying the numbering systems for which the implementation
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provides the functionality of Intl.DateTimeFormat, Intl.NumberFormat, and
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Intl.RelativeTimeFormat objects. The list must include the Numbering System
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value of every row of Table 4, except the header row.
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includes: [testIntl.js]
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locale: [en]
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features: [Intl-enumeration, Array.prototype.includes]
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---*/
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const numberingSystems = Intl.supportedValuesOf("numberingSystem");
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for (let numberingSystem of numberingSystems) {
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let obj = new Intl.DateTimeFormat("en", {numberingSystem});
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assert.sameValue(obj.resolvedOptions().numberingSystem, numberingSystem,
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`${numberingSystem} is supported by DateTimeFormat`);
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}
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for (let numberingSystem of allNumberingSystems()) {
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let obj = new Intl.DateTimeFormat("en", {numberingSystem});
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if (obj.resolvedOptions().numberingSystem === numberingSystem) {
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assert(numberingSystems.includes(numberingSystem),
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`${numberingSystem} supported but not returned by supportedValuesOf`);
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} else {
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assert(!numberingSystems.includes(numberingSystem),
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`${numberingSystem} not supported but returned by supportedValuesOf`);
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}
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}
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