Full documentation about it here.

To use a reporter published on npm (e.g., lcov-reporter), install it locally and set --reporter lcov-reporter.

It is a very similar setup for third party UI's, for more details see here.

• npm test - run our tests using the local .mocharc.json config file. They are run from the default location (/test) with the reporter found in src/my-reporter.js. In this example there is 1 failing test included, to demonstrate handling.