jest-preview
ng-mocks
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| jest-preview | ng-mocks | |
|---|---|---|
| 3 | 9 | |
| 2,295 | 995 | |
| - | 1.7% | |
| 1.5 | 10.0 | |
| 4 months ago | 7 days ago | |
| TypeScript | TypeScript | |
| MIT License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
jest-preview
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A guide to visual debugging with Vitest Preview
Vitest Preview helps you to write and debug tests faster by allowing you to visualize your test in a browser. If you are familiar with Jest, you know that the Jest community has a similar debugging tool, Jest Preview, created by the same developer, Hung Viet Nguyen. To learn more about testing with Jest, check out our video guide here.
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Hot tip - Use snapshots in React Testing Library to debug faster
Nice suggestion! Another tool I recently found, jest-preview, has really decreased my time debugging tests. It only takes a few lines to try it out, definitely worth a look.
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Angular CLI example for Jest Preview - the visual debugger for Jest
The Angular CLI guide for Jest Preview refers to the common installation and usage instructions while describing Angular-specific configuration and usage instructions.
ng-mocks
- Angular (v15) MatStepper + Jest (v29) + ng-mocks
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Informal AMA: Angular Signals RFC
Is the Angular team aware of NG Mocks and NG Spectator?
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Services needed in every components unit test
No neither of those. You're unit testing the component, so you don't want any external interference. You can create a mock version of the service, I like using ng-mocks to simplify a lot of this: https://www.npmjs.com/package/ng-mocks
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Is Unit Testing in Angular overrated?
No way, you just mock the services. Check out this library: https://www.npmjs.com/package/ng-mocks
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Unit testing <google-map>, Export of name 'mapMarker' not found!
I recommend using MockModule from ng-mocks https://www.npmjs.com/package/ng-mocks
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20+ JavaScript Utilities to Boost Your Productivity As a Developer
8. NG-Mocks
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How to Mock Services in Angular
You can have a look at ng-mocks. It provides a great toolset for angular mocks.
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Spec file "Cannot read property of 'subscribe' of undefined"
Also, for mocking, I recommend looking into ng-mocks. https://github.com/ike18t/ng-mocks It makes mocking really easy.
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Unit testing library for Angular application
Correct. When unit testing, you want to test the unit (parent component) in isolation. To do this, you can use something like ng-mocks (my personal favorite) to create mock components. You could also use the NO_ERRORS_SCHEMA but I don't recommend this because I like to verify that my component loads w/ all of its dependencies (even if the are just mocks). If you test your parent component w/ all of its child components, then you are doing a form of integration testing. I tend to refer to it as a grey area between unit and integration testing because there are valuable tests that can be written fairly easily and cheaply that don't truly isolate parent components from their child components.
What are some alternatives?
crusher - Fast all-in-one testing framework 🏟️ built on Playwright + low-code approach [Moved to: https://github.com/crusher-dev/crusher]
spectator - 🦊 🚀 A Powerful Tool to Simplify Your Angular Tests
github-issue-viewer - A Github issue viewer apps
jest-mock-extended - Type safe mocking extensions for Jest https://www.npmjs.com/package/jest-mock-extended
vitest-preview-demo - Vitest Preview Demo
angular-testing-library - 🐙 Simple and complete Angular testing utilities that encourage good testing practices
storybook - Storybook is a frontend workshop for building UI components and pages in isolation. Made for UI development, testing, and documentation.
dayjs - ⏰ Day.js 2kB immutable date-time library alternative to Moment.js with the same modern API
crusher - 🧙♀️ Fast low-code testing framework ⏱️ Create test in <60 secs
ts-mockito - Mocking library for TypeScript
packages - 💎 Monorepository for Stylify packages. Stylify uses CSS-like selectors to generate Extremely optimized utility-first CSS dynamically based on what you write 💎.
jest - Super-fast alternative for babel-jest or ts-jest without type checking. Please use main repository for issues