bencripps / react-redux-grid

import expect from 'expect';

import { elementContains } from './../../src/util/elementContains';

describe('elementContains utility function', () => {

    it('Should throw an error for invalid args', () => {

        expect(() => {

            elementContains();

        }).toThrow('Function requires a dom node and a classname');

    });

    it('Should return true, if element is found', () => {

        const parent = document.createElement('div');

        const node = document.createElement('div');

        parent.classList.add('test-class');

        parent.appendChild(node);

        document.body.appendChild(parent);

        expect(

            elementContains(parent, 'test-class')

        ).toEqual(true);

    });

    it('Should return undefined, if not element is found', () => {

        const parent = document.createElement('div');

        const node = document.createElement('div');

        parent.classList.add('nope');

        parent.appendChild(node);

        document.body.appendChild(parent);

        expect(

            elementContains(parent, 'test-class')

        ).toEqual(undefined);

    });

});