Files
openstapps/packages/collection-utils/test/shuffle.spec.ts
2023-05-31 14:04:05 +02:00

32 lines
1.1 KiB
TypeScript

/*
* Copyright (C) 2022 StApps
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <https://www.gnu.org/licenses/>.
*/
import {shuffle} from '../src/index.js';
import {expect} from 'chai';
describe('shuffle', function () {
it('should shuffle an array', function () {
const array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
const shuffled = shuffle(array);
expect(shuffled).not.to.deep.equal(array);
expect(shuffled).to.contain.members(array);
});
it('should not modify the original array', function () {
const array = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
shuffle(array);
expect(array).to.deep.equal([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]);
});
});