Describe how to run server and tests and shutdown

Often see this question

Hi, what is the recommended say to start your normal dev server before cypress run? 
I tried an NPM script as "test": "yarn start; yarn cypress run" but running into 
background-process issues and the server isn't closed afterwards.

Need to show two ways we do it: via run-p --race server test using npm-run-all and using https://github.com/bahmutov/start-server-and-test

[rwieruch]

Not sure about the status quo of best practice here, but I used start-server-and-test from the CI documentation for my local testing as well. Just wanted to leave the comment here, because when I searched for this topic, I came across this issue 😃

  "scripts": {
    "start": "webpack-dev-server --config ./webpack.config.js --mode development",
    "test:cypress": "start-server-and-test start http://localhost:8080 cypress",
    "cypress": "cypress run"
  },

[brian-mann]

We explain exactly that in the CI document.

https://docs.cypress.io/guides/guides/continuous-integration.html#Booting-Your-Server

And also in the Best Practices.

https://docs.cypress.io/guides/references/best-practices.html#Web-Servers

Maybe should also go in the Usage FAQ.