Learning Node.js Development

Creating the if condition for the test

Now, we'll create an if statement for the test. If the response value is not equal to 44, that means we have a problem on our hands and we'll throw an error:

const utils = require('./utils');it('should add two numbers', () => {  var res = utils.add(33, 11);    if (res != 44){      }});

Inside the if condition, we can throw a new error and we'll use a template string as our message string because I do want to use the value that comes back in the error message. I'll say Expected 44, but got, then I'll inject the actual value, whatever happens to come back:

const utils = require('./utils');it('should add two numbers', () => {  var res = utils.add(33, 11);    if (res != 44){    throw new Error(`Expected 44, but got ${res}.`); ...