How to test routes in ExpressJS?

Question

Unit testing

Good afternoon. Tell me how to cover routes with tests. For example, with such a request, such and such a route returned status 200, for example. Or, such and such a route contains such and such parameters in the response body.

Answer 1

https://www.npmjs.com/package/supertest

Answer 2

Functional tests - route returned a page with these tags
Unit tests - route returned this function + status + used this template / returned json