**Summary** *Testing Vue.js Applications* is a comprehensive guide to testing Vue components, methods, events, and output. Author Edd Yerburgh, creator of the Vue testing utility, explains the best testing practices in Vue along with an evergreen methodology that applies to any web dev process. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. **About the Technology** Web developers who use the Vue framework love its reliability, speed, small footprint, and versatility. Vue’s component-based approach and use of DOM methods require you to adapt your app-testing practices. Learning Vue-specific testing tools and strategies will ensure your apps run like they should. **About the Book** With *Testing Vue.js Applications* , you’ll discover effective testing methods for Vue applications. You’ll enjoy author Edd Yerburgh’s engaging style and fun real-world examples as you learn to use the Jest framework to run tests for a Hacker News application built with Vue, Vuex, and Vue Router. This comprehensive guide teaches the best testing practices in Vue along with an evergreen methodology that applies to any web dev process. **What’s inside** * Unit tests, snapshot tests, and end-to-end tests * Writing unit tests for Vue components * Writing tests for Vue mixins, Vuex, and Vue Router * Advanced testing techniques, like mocking **About the Reader** Written for Vue developers at any level. **About the Author** **Edd Yerburgh** is a JavaScript developer and Vue core team member. He’s the main author of the Vue Test Utils library and is passionate about open source tooling for testing component-based applications. **Table of Contents** 1. Introduction to testing Vue applications 2. Creating your first test 3. Testing rendered component output 4. Testing component methods 5. Testing events 6. Understanding Vuex 7. Testing Vuex 8. Organizing tests with factory functions 9. Understanding Vue Router 10. Testing Vue Router 11. Testing mixins and filters 12. Writing snapshot tests 13. Testing server-side rendering 14. Writing end-to-end tests APPENDIXES * A – Setting up your environment * B – Running the production build * C – Exercise answers