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Vue.js 2 and Bootstrap 4 Web Development

You're reading from   Vue.js 2 and Bootstrap 4 Web Development Build responsive SPAs with Bootstrap 4, Vue.js 2, and Firebase

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781788290920
Length 310 pages
Edition 1st Edition
Languages
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Author (1):
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Olga Filipova Olga Filipova
Author Profile Icon Olga Filipova
Olga Filipova
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Toc

Table of Contents (12) Chapters Close

Preface 1. Please Introduce Yourself – Tutorial FREE CHAPTER 2. Under the Hood – Tutorial Explained 3. Let's Get Started 4. Let It Pomodoro! 5. Configuring Your Pomodoro 6. Please Authenticate! 7. Adding a Menu and Routing Functionality Using vue-router and Nuxt.js 8. Let's Collaborate – Adding New Workouts Using Firebase Data Storage and Vue.js 9. Test Test and Test 10. Deploying Using Firebase Index

Testing Vuex store with Jest


Let's now try to test our Vuex store. The most critical parts of our store to test are our actions and mutations because they can actually mutate the store's state. Let's start with the mutations. Create the mutations.spec.js file in the test folder and import mutations.js:

// test/mutations.spec.js
import mutations from '~/store/mutations'

We are ready to write unit tests for our mutation functions.

Testing mutations

Mutations are very simple functions that receive a state object and set some of its attribute to the given value. Thus, testing mutations is fairly easy—we have just to mock the state object and pass it to the mutation we want to test with a value we want to set. In the end, we have to check whether the value has been actually set. Let's, for example, test the mutation setWorkingPomodoro. This is what our mutation looks like:

// store/mutations.js
setWorkingPomodoro (state, workingPomodoro) {
  state.config.workingPomodoro = workingPomodoro
}

In our test...

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