tldr/pages/common/jest.md

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