javascript-typescript-jest
Master Jest testing for JS/TS with best practices for mocking, async code, and React Testing Library.
Install
npx skills add https://github.com/github/awesome-copilot --skill javascript-typescript-jestStats
| Total installs | 8,290 |
| Weekly installs | 8.3K |
| GitHub stars | 27.4K |
| First seen | Feb 25, 2026 |
| Source | @github/awesome-copilot |
Summary
- Organize tests with descriptive names in nested describe blocks, using .test.ts/.test.js files placed alongside source code or in __tests__ directories
- Mock external dependencies with jest.mock(), jest.spyOn(), and mockImplementation(), resetting between tests to prevent state leakage
- Handle async code with promises, async/await, and resolves/rejects matchers; set timeouts for slow tests
- Test React components with React Testing Library, querying by accessibility roles and labels, and using userEvent for realistic interactions
- Includes 20+ common matchers covering truthiness, numbers, strings, arrays, objects, exceptions, and mock function assertions
Tags
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FAQ
- How many installs does javascript-typescript-jest have?
- javascript-typescript-jest has 8,290 total installs and 8.3K installs this week.
- Where is javascript-typescript-jest hosted?
- javascript-typescript-jest is published by @github/awesome-copilot at https://github.com/github/awesome-copilot.
- How many GitHub stars does javascript-typescript-jest have?
- javascript-typescript-jest has 27.4K GitHub stars.
- When was javascript-typescript-jest first indexed?
- OrangeBot.AI first indexed javascript-typescript-jest on Feb 25, 2026.
- How do I install javascript-typescript-jest?
- Run: npx skills add https://github.com/github/awesome-copilot --skill javascript-typescript-jest