pjbatista / decimal.js-i18n

/*!

 * Copyright (c) 2022 Pedro José Batista, licensed under the MIT License.

 * See the LICENSE.md file in the project root for more information.

 */

import { expect, use } from "chai";

import chaiSubset from "chai-subset";

import "mocha";

import { basicNumbers, constants, Format, randomOptionsCombinations } from "./helpers";

use(chaiSubset);

describe("Randomized localization test (comparing results to native)", () => {

    const languages: [undefined, ...string[]] = [] as any;

    for (const locale of [undefined, ...constants.LOCALES]) {

        const language = (locale ?? "").replace(/^.*-([a-z]+)$/i, "$1").toLowerCase();

        const firstOfKind = !languages.includes(language);

        if (!firstOfKind) continue;

        languages.push(language || undefined);

    }

    for (const language of languages.sort()) {

        it(`locale=${language || "undefined"}, 822 randomized options variations, should match native`, function () {

            this.timeout(5000);

            const ecmaOptionsCombinations = randomOptionsCombinations(true);

            for (const options of ecmaOptionsCombinations) {

                const decFormat = new Format(language, options);

                const numFormat = new Intl.NumberFormat(language, options as Intl.NumberFormatOptions);

                for (const number of basicNumbers) {

                    const decParts = decFormat.formatToParts(number);

                    const numParts = numFormat.formatToParts(number as any);

                    expect(decParts.length).to.equal(numParts.length);

                }

            }

        });

    }

});