mirror of https://github.com/tc39/test262.git
49 lines
1.7 KiB
JavaScript
49 lines
1.7 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 "unit" values are sorted, unique, and well-formed.
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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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7. Else if key is "unit", then
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a. Let list be ! AvailableUnits( ).
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...
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9. Return ! CreateArrayFromList( list ).
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AvailableUnits ( )
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The AvailableUnits abstract operation returns a List, ordered as if an Array
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of the same values had been sorted using %Array.prototype.sort% using
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undefined as comparefn, that contains the unique values of simple unit
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identifiers listed in every row of Table 1, except the header row.
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includes: [compareArray.js, testIntl.js]
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features: [Intl-enumeration, Array.prototype.includes]
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---*/
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const units = Intl.supportedValuesOf("unit");
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assert(Array.isArray(units), "Returns an Array object.");
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assert.sameValue(Object.getPrototypeOf(units), Array.prototype,
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"The array prototype is Array.prototype");
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const otherUnits = Intl.supportedValuesOf("unit");
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assert.notSameValue(otherUnits, units,
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"Returns a new array object for each call.");
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assert.compareArray(units, otherUnits.sort(),
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"The array is sorted.");
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assert.sameValue(new Set(units).size, units.length,
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"The array doesn't contain duplicates.");
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const simpleSanctioned = allSimpleSanctionedUnits();
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for (let unit of units) {
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assert(simpleSanctioned.includes(unit), `${unit} is a simple, sanctioned unit`);
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assert(!unit.includes("-per-"), `${unit} isn't a compound unit`);
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}
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