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SlabUploader/frontend/tests/e2e/artifacts/README.md
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# E2E visual artifacts (#65)
Screenshots from `npx playwright test` for Milestone 2 Photos-ready evidence.
## How to run (local box — not ubudual :10880)
```bash
cd frontend
npm ci
npx playwright install chromium # once per machine
npm run test:e2e
```
Or against an already-running preview:
```bash
npm run build && npm run preview -- --host 127.0.0.1 --port 4173
# other terminal:
npx playwright test
```
Fixtures: `tests/fixtures/set1-48x2/` (L=48, thickness=2) and `set2-31x2p5/` (L=31, thickness=2.5). Black sheet — e2e selects **Black** and may nudge sensitivity.
## Expected screenshots (this folder)
| File | Step |
|---|---|
| `01-batch.png` | Batch with fixtures loaded |
| `02-pick-calibration.png` | Pick calibration |
| `03-mask.png` | Mask (Black sheet) ready to approve |
| `04-axis.png` | Tape calibration page |
| `05-tape-calibration.png` | Length and thickness entered on the tape page |
| `06-photos-ready.png` | Photos ready lineup (clean + overlay + siblings) |
| `tape-fixed-line.png` | #99 fixed tape line: no tick-drag copy, ticks follow the crop slider |
| `tape-fixed-line-crop50.png` | #99 fixed tape line at 50% crop fill (line ends pulled in) |
`tape-fixed-line.spec.ts` asserts the #99 contract: the line is a stage fixture,
its ends are a pure function of `crop_fill`, a drag starting on a tick behaves
exactly like a pan elsewhere, and arrow keys cannot move the ends.
Large regenerating `*.png` and Playwright `test-results/` / `playwright-report/` are gitignored.
Committed small evidence JPEGs live in `evidence/` (regenerate with a green `npm run test:e2e`, then re-encode if needed).
## Unit tests
`npm test` must still pass separately from Playwright.