1. npm init playwright test2303
2. cd test2303
3. Add this to your config

webServer: {
  command: 'sleep 43434',
  port: 8080,
},

4. npx http-server . in some other directory to start a server
5. npx playwright test --ui

Expected: I see an error that the webServer has failed to launch since the port is in use
Actual: Exit code 1 without any error