Related

Run Tests

jest

Run Jest tests

Watch Mode

jest

Run tests in watch mode

Test Suites

jest

Group related tests together

jest/debug

Debug Tests

Debug failing tests

jest
debug
troubleshoot

Command

npm test -- --verbose

Explanation

Debug options help identify issues with failing tests and performance problems.

Examples

Verbose output

npm test -- --verbose

Detect open handles

npm test -- --detectOpenHandles

Run tests serially

npm test -- --runInBand

More

Individual Tests

jest

Write individual test cases

Assertions

jest

Make assertions in tests

Timer Mocks

jest

Mock timers in tests