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Testing Vue.js Components with Jest
Gain insights into testing Vue.js applications using Jest. Delve into creating unit tests and build intricate tests for Vue components to ensure your app functions flawlessly.
5.0
41 Lessons
7h
Updated this week
Join 2.9 million developers at
Join 2.9 million developers at
LEARNING OBJECTIVES
- Set up a Vue.js testing project with Jest and vue-test-utils configuration
- Write Jest unit tests for Vue single-file components using shallow rendering
- Mount components to test lifecycle hooks and integration with child components
- Use the vue-test-utils Wrapper to assert structure, sub-components, and inline styles
- Test props behavior with propsData, defaults, validation, and vm.$options checks
- Test custom events with emitted assertions, mocks, and spies for event handlers
- Mock external modules (e.g., axios) and externalize/reset Jest mocks between tests
Learning Roadmap
1.
First Vue.js Component Unit Test
First Vue.js Component Unit Test
Learn how to use Jest and vue-test-utils for effective Vue.js component testing.
2.
Testing Deeply Rendered Vue.js Components
Testing Deeply Rendered Vue.js Components
Walk through deeply testing Vue.js components, focusing on `mount`, lifecycle hooks, and project execution.
3.
Testing Styles and Structure
Testing Styles and Structure
3 Lessons
3 Lessons
Go hands-on with testing Vue.js component styles and structure using the Wrapper Object.
4.
Testing Properties and Custom Events
Testing Properties and Custom Events
4 Lessons
4 Lessons
Build a foundation in testing Vue.js properties, custom events, and running test cases.
5.
Testing Computed Properties and Watchers
Testing Computed Properties and Watchers
4 Lessons
4 Lessons
Map out the steps for testing Vue.js computed properties and watchers effectively.
6.
Testing Methods and Mock Dependencies
Testing Methods and Mock Dependencies
4 Lessons
4 Lessons
Utilize Jest to mock dependencies, keep mocks externalized, and run comprehensive tests.
7.
Testing Vue.js Slots
Testing Vue.js Slots
7 Lessons
7 Lessons
Build on the flexibility, accessibility, and testing of Vue.js slots in component design.
8.
Enhance Jest configuration with Module Aliases
Enhance Jest configuration with Module Aliases
4 Lessons
4 Lessons
Utilize module aliases to streamline development, maintain clean code, and simplify testing in Vue.js projects.
9.
Snapshot Testing
Snapshot Testing
5 Lessons
5 Lessons
Get started with snapshot testing to validate and streamline Vue.js component rendering.
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Developed by MAANG Engineers
ABOUT THIS COURSE
Front-end frameworks, in general, are exploding in popularity, and Vue.js, in particular, has become one of the most popular ones.
As front-end frameworks continue to grow in usage, the ability to incorporate testing has become an essential feature. It's simply the only scalable way to ensure your app is functioning as expected.
You can learn to test your Vue.js applications thoroughly using Jest with this interactive course.
You'll start by learning the simplest unit tests in Jest, and will gradually build up to more intricate tests of different Vue components. To give you practical front-end testing experience, you'll be running your tests on a predefined data rendering Vue.js application.
This course is essential for anyone looking to create robust and effective front-end tests for their Vue apps.
ABOUT THE AUTHOR
Alex Jover Morales
@VueDose author. @google dev expert. @vuejs community partner. Instructor on different platforms. Co-organizes @AlicanteFront and @VueDay. Interested on the human side of code.
Trusted by 2.9 million developers working at companies
A
Anthony Walker
@_webarchitect_
E
Evan Dunbar
ML Engineer
S
Software Developer
Carlos Matias La Borde
S
Souvik Kundu
Front-end Developer
V
Vinay Krishnaiah
Software Developer
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