it forces you to not start a browser to test (jsdom)
drawback as you are not importing any of its function, IDE parser may returns an error. bouh :(
List of test framework and the number of stars:
jest (20000) - Jest is a testing platform for client-side JavaScript applications and React applications specifically.
Javascript - Karma (Test runner) - Karma is essentially a tool which spawns a web server that executes source code against test code for each of the browsers connected with another test runner framework