List how to test our code (unit and E2E) and what we use to test.
We use Jest for our backend unit testing (tests located in ./test).
Additionally, we use Puppeteer for end-to-end testing (tests located in ./puppeteerTesting)
To run unit and end-to-end tests:
Start the local host on port 5500
npm start
On a separate terminal, run the tests
npm run test