tldr/pages/common/jest.md

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# jest
> A zero-configuration JavaScript testing platform.
> More information: <https://jestjs.io>.
- Run all tests:
`jest`
- Run tests from the test files that match the regex patterns:
`jest {{test_file1}} {{test_file2}}`
- Run tests whose names match the regex pattern:
`jest --testNamePattern {{spec_name}}`
- Run tests related to uncommitted files:
`jest --onlyChanged`
- Watch files for changes and re-run related tests:
`jest --watch`
- Show help:
`jest --help`