jest
https://github.com/jestjs/jest
TypeScript
Delightful JavaScript Testing.
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- Issues
- [Bug]: Jest leaks memory in ESM mode
- [Bug]: Constructing a mocked class does not return an object typed as a mock, but rather one typed with the original class' type
- [Bug]: Untested code is not transformed when using v8 coverage collector
- [Bug]: workerThreads break --watch-all when function does not meet expected.
- [Bug]: Mocking bare specifier fails when dependency is provided by `npm link`
- [Bug]: Jest main process memory usage grows unboundedly with v8 coverage
- [Bug]: `expect.assertions` fails when using `test.concurrent`
- Dependency Dashboard
- [Bug]: Object.defineProperty setter gets called twice on a single set
- [Bug]: createMockFromModule not mocking class correctly
- Docs
- TypeScript not yet supported