Learning Node.js Development

Writing test for asyncSquare

Now inside the test file, things are indeed passing, but we haven't added a test for the asyncSquare function so let's do that. Inside the utils.test file, the next thing you needed to do was call it. Next to it for testing the asyncAdd function, let's call it to make a new test for this asyncSquare function:

it('should square a number', () => {  var res = utils.square(3);   expect(res).toBe(9).toBeA('number');});it('should async square a number')

Next up, we'll provide the callback function that'll get called when the test actually executes. And since we are testing an async function, we'll put done in the callback function as shown here:

it('should async square a number', (done) => {});

This will tell Mocha to ...