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Frontend Development Projects with Vue.js 3

You're reading from   Frontend Development Projects with Vue.js 3 Learn the fundamentals of building scalable web applications and dynamic user interfaces with Vue.js

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Product type Paperback
Published in Mar 2023
Publisher Packt
ISBN-13 9781803234991
Length 628 pages
Edition 2nd Edition
Languages
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Authors (4):
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Hugo Di Francesco Hugo Di Francesco
Author Profile Icon Hugo Di Francesco
Hugo Di Francesco
Clifford Gurney Clifford Gurney
Author Profile Icon Clifford Gurney
Clifford Gurney
Raymond Camden Raymond Camden
Author Profile Icon Raymond Camden
Raymond Camden
Maya Shavin Maya Shavin
Author Profile Icon Maya Shavin
Maya Shavin
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Toc

Table of Contents (20) Chapters Close

Preface 1. Part 1: Introduction and Crash Course
2. Chapter 1: Starting Your First Vue Project FREE CHAPTER 3. Chapter 2: Working with Data 4. Chapter 3: Vite and Vue Devtools 5. Part 2: Building Your First Vue App
6. Chapter 4: Nesting Components (Modularity) 7. Chapter 5: The Composition API 8. Chapter 6: Global Component Composition 9. Chapter 7: Routing 10. Chapter 8: Animations and Transitions 11. Part 3: Global State Management
12. Chapter 9: The State of Vue State Management 13. Chapter 10: State Management with Pinia 14. Part 4: Testing and Application Deployment
15. Chapter 11: Unit Testing 16. Chapter 12: End-to-End Testing 17. Chapter 13: Deploying Your Code to the Web 18. Index 19. Other Books You May Enjoy

Triggering and waiting for UI updates with Cypress

The tests we’ve written up until now are quite simple and only check that the application isn’t crashing on load in the browser.

One of the strengths of E2E tests is testing that the UI behaves as expected when a user interacts with it with high fidelity. We’ll use Cypress’ selection (the .get() function), event triggering (the .click() function), and assertion (the .should() function) functionality to test a Vue.js application in this section.

Cypress’ automatic retries on DOM selection will allow us to write E2E tests without explicit wait or timeout conditions. Waits and timeouts are a staple of other E2E testing systems and tend to be a source of flakiness in tests.

To begin with, we will add a comment editor to our Commentator Pro application. Displaying the editor (a simple textarea) will be toggled by clicking on the Add a New Comment button.

In order to keep writing tests without...

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