Testing jQuery with Mocha (TypeScript)

utils.spec.ts

// based on https://gist.github.com/robballou/9ee108758dc5e0e2d028
// install dependencies if needed: npm i -S jquery @types/jquery jsdom @types/jsdom
import { expect } from "chai";
import { JSDOM } from "jsdom";
import "mocha";
import { Utils } from "ts/libs/utils/Utils";

const { window } = new JSDOM();
const $ = (global as any).jQuery = require("jquery")(window);

describe("Utils Class", () => {
  const utils = new Utils();
  
  it("should check that element has all classes", () => {
    const element = $(`<div class="cls1 cls2 cls3"></div>`);
    
    expect(utils.hasAllClasses(element, ["cls1", "cls2", "cls3"])).to.be.true;
    
    expect(utils.hasAllClasses(element, ["cls1", "cls4"])).to.be.false;
  });
  
});