React - Jest : No tests found, exiting with code 0

Question

I'm learning ReactJS for a few weeks but I'm facing an issue that's impossible to solve by myself.

I use create-react-app command to start react project but it is totally impossible to use npm test after that. Even if I don't touch anything in the project, when I try to run npm test I only get "No tests found, exiting with code 0".... When I just create the project there is src/App.test.js but the command found nothing..... :(

Someone I sent the folder succeeded to run the tests.... is it possible that the problem comes from my computer/environment (Windows 10) ?

Thanks for help.

Have a good day

Answer 1

Add this line to your "package.json"

1. open package.json

2. find scripts in that "test" : "react scripts test" replace this with

   "test": "react-scripts test --watchAll --testMatch **/src/**/*.test.js"
   

3. Now run npm test.

It works!