| // 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 "unit" values are sorted, unique, and well-formed. |
| info: | |
| Intl.supportedValuesOf ( key ) |
| |
| 1. Let key be ? ToString(key). |
| ... |
| 7. Else if key is "unit", then |
| a. Let list be ! AvailableUnits( ). |
| ... |
| 9. Return ! CreateArrayFromList( list ). |
| |
| AvailableUnits ( ) |
| The AvailableUnits 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 the unique values of simple unit |
| identifiers listed in every row of Table 1, except the header row. |
| includes: [compareArray.js, testIntl.js] |
| features: [Intl-enumeration] |
| ---*/ |
| |
| const units = Intl.supportedValuesOf("unit"); |
| |
| assert(Array.isArray(units), "Returns an Array object."); |
| assert.sameValue(Object.getPrototypeOf(units), Array.prototype, |
| "The array prototype is Array.prototype"); |
| |
| const otherUnits = Intl.supportedValuesOf("unit"); |
| assert.notSameValue(otherUnits, units, |
| "Returns a new array object for each call."); |
| |
| assert.compareArray(units, otherUnits.sort(), |
| "The array is sorted."); |
| |
| assert.sameValue(new Set(units).size, units.length, |
| "The array doesn't contain duplicates."); |
| |
| const simpleSanctioned = allSimpleSanctionedUnits(); |
| |
| for (let unit of units) { |
| assert(simpleSanctioned.includes(unit), `${unit} is a simple, sanctioned unit`); |
| assert(!unit.includes("-per-"), `${unit} isn't a compound unit`); |
| } |