# Playwright CDP E2E Closure

- Date: 2026-03-24
- Scope: `frontend/admin` full real-browser E2E through external browser launch + Playwright CDP connection
- Environment: Windows PowerShell, current constrained environment where `playwright test` worker spawn is blocked by `spawn EPERM`

## Commands Executed

```powershell
cd D:\project\frontend\admin
npm.cmd run lint
npm.cmd run build
npm.cmd run test:run
npm.cmd run e2e:full:win
1..3 | ForEach-Object { npm.cmd run e2e:full:win }
```

## Validated Results

- `npm.cmd run lint`: passed
- `npm.cmd run build`: passed
- `npm.cmd run test:run`: passed
  - test files: `7`
  - tests: `24`
- `npm.cmd run e2e:full:win`: passed
- After browser cleanup hardening in [`frontend/admin/scripts/run-cdp-smoke.ps1`](/D:/project/frontend/admin/scripts/run-cdp-smoke.ps1), three consecutive reruns of `npm.cmd run e2e:full:win` all passed without wrapper retry

## Full E2E Scenarios

- `login-surface`
- `auth-workflow`
- `responsive-login`
- `desktop-mobile-navigation`

## Failure Signals Enforced

The Playwright CDP harness treats the following as failures:

- console errors
- native dialogs
- popup pages
- page errors
- request failures
- `401` responses
- blocked `window` guard events

No such failure signal was observed in the successful runs above.

## Closure Notes

- Current supported E2E path is browser-level real validation, not DOM mock.
- Current supported E2E path is `Playwright library + external browser + CDP`; it does not depend on `playwright test` runner workers.
- This is not full OS-level automation. It does not claim coverage for native file pickers, system permission dialogs, or other desktop-level interactions.

## Conclusion

In the current constrained Windows environment, the browser-level E2E closure for `frontend/admin` is complete and reproducibly passing on the supported CDP path.
