Writing unit tests for our Pomodoro application

Ok! Let's move to our Pomodoro application! By the way, when was the last time you took a break? Probably, it is time to open the application in your browser, wait a few minutes of the Pomodoro working period timer, and check for some kittens.

I just did it and it made me feel really nice and cute:

I'm not your clothes... please have some rest

Let's start with mutations. Open the code in the chapter7/pomodoro folder. Open the mutations.js file and check what is happening out there. There are four mutations happening: START, STOP, PAUSE, and TOGGLE_SOUND. Guess which one we will start with. Yes, you are right, we will start with the start method. Create a vuex subfolder inside the test/unit/specs folder and add the mutations.spec.js file. Let's bootstrap it to be ready for tests:

// mutations.spec.js 
import Vue from 'vue' 
import mutations from 'src/vuex/mutations' 
import * as types from 'src/vuex/mutation_types' 
 
...