tldr/pages/common/jest.md

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# jest
> A zero-configuration JavaScript testing platform.
> More information: <https://jestjs.io>.
- Run all available tests:
`jest`
- Run the test suites from the given files:
`jest {{path/to/file1}} {{path/to/file2}}`
- Run the test suites from files within the current and subdirectories, whose paths match the given regular expression:
`jest {{regular_expression1}} {{regular_expression2}}`
- Run the tests whose names match the given regular expression:
`jest --testNamePattern {{regular_expression}}`
- Run test suites related to a given source file:
`jest --findRelatedTests {{path/to/source_file.js}}`
- Run test suites related to all uncommitted files:
`jest --onlyChanged`
- Watch files for changes and automatically re-run related tests:
`jest --watch`
- Display help:
`jest --help`