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
• Show help:
  jest --help