koel/resources/assets/js/tests/services/lsTest.js

require('chai').should();

import localStorage from 'local-storage';
import ls from '../../services/ls';

describe('services/ls', () => {
    beforeEach(() => localStorage.remove('foo'));

    describe('#get', () => {
        it('correctly gets an existing item from local storage', () => {
            localStorage('foo', 'bar');
            ls.get('foo').should.equal('bar');
        });

        it('correctly returns the default value for a non exising item', () => {
            ls.get('baz', 'qux').should.equal('qux');
        });
    });

    describe('#set', () => {
        it('correctly sets an item into local storage', () => {
            ls.set('foo', 'bar');
            localStorage('foo').should.equal('bar');
        });
    });

    describe('#remove', () => {
        it('correctly removes an item from local storage', () => {
            localStorage('foo', 'bar');
            ls.remove('foo');
            (localStorage('foo') === null).should.be.true;
        });
    });
});