Stubbing external API calls with Sinon.JS

Normally, when you do end-to-end testing and integration testing, you will have the backend server running and ready to respond to you. I think there are many situations in which this is not desirable. As a frontend developer, you take every opportunity to blame the backend guys.

Getting ready

No particular skills are required to complete this recipe, but you should install Jasmine as a dependency; this is explained in detail in the Using Jasmine for testing Vue recipe.

How to do it...

First of all, let's install some dependencies. For this recipe, we will use Jasmine to run the whole thing; you can find detailed instructions in the Using Jasmine for testing Vue recipe (the four files you'll need are jasmine.css, jasmine.js, jasmine-html.js, and boot.js, in this order)

Also, install Sinon.JS and Axios before continuing; you just need to add the js files relative to them.

We will build an application that retrieves a post at the click of a button. In the...