To run jest / selenium combo:

npm run ci

To run cypress tests:

npm run ci-cypress

To run the cypress electron app:

npm run dev

npx cypress open

• https://github.com/zeit/next.js/tree/master/examples/with-jest
• vercel/next.js#4263

"babel-core": "7.0.0-bridge.0",
"babel-jest": "22.4.3",
"enzyme": "3.2.0",
"enzyme-adapter-react-16": "1.1.1",
"jest": "22.0.1",
"react-addons-test-utils": "15.6.2",
"react-test-renderer": "16.2.0"

cypress-io/cypress-documentation#355

Most CI providers will automatically kill background processes so you don’t have to worry about cleaning up your server process once Cypress finishes.

However, if you’re running this script locally you’ll have to do a bit more work to collect the backgrounded PID and then kill it after cypress run. https://docs.cypress.io/guides/guides/continuous-integration.html#To-record-tests-running

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

Best Practice: Start a web server prior to running Cypress in the Test Runner or headless mode.