Steffen Becker
60980fa4d6
The root file is read at every session start and had grown to 87 KB, so every session paid for knowledge it did not use. Move the per-directory detail into nested CLAUDE.md files, which load when a file in that directory is touched, and the five deep-dive topics into docs/. The root keeps the commands, the hard rules and an index of where the rest lives. Content moved verbatim — the probed Word/LibreOffice behaviour, sentinel order and shared constants are what the code cannot say. CI fails the root over 120 lines, since a prose budget alone is what let it grow.
1.9 KiB
Headless browser testing
With no test suite, the way to verify rendering, layout, or interaction is to drive the live app in a headless browser. This container is linux arm64 (uname -m → aarch64) — the one gotcha. Use it for any check: pagination, list-marker/float layout, table sizing, header/footer, theme colors, image drag/resize, ODF round-trips, etc. PDF export is just one example.
- Don't use
puppeteer/npx @puppeteer/browsers install chrome-headless-shell: they fetch an x86-64 Chrome that can't run here (rosetta error: failed to open elf at /lib64/ld-linux-x86-64.so.2). No arm64 chrome-headless-shell build exists. - Use Playwright's Chromium (native arm64):
npm install --no-save playwright-core && npx playwright-core install chromium→ binary at~/.cache/ms-playwright/chromium-*/chrome-linux/chrome. Playwright'sinstall-depshost check errors out, but the libs install via apt:apt-get install -y libdbus-1-3 libnss3 libnspr4 libatk1.0-0 libatk-bridge2.0-0 libcups2 libdrm2 libxkbcommon0 libxcomposite1 libxdamage1 libxfixes3 libxrandr2 libgbm1 libasound2 libatspi2.0-0 libpango-1.0-0 libcairo2. Launch with playwright-core,executablePathat that binary,args: ['--no-sandbox'].
Then load npm run dev, inject a document into localStorage['odf-editor-doc'], reload, and read live DOM geometry (getBoundingClientRect, Range.getClientRects) or screenshot. This is the only way to exercise the editor's live ProseMirror NodeViews (e.g. the image node), which generateHTML can't reproduce. The debug/pagebreak-debug-*.json snapshots carry the live doc JSON, handy to inject.
For PDF-export repros specifically: replicate pdf.ts's clone + html2canvas(...) inside page.evaluate and read the canvas back as a PNG — capturing the real jsPDF doc.save() download tends to hang in headless. Inspect output PDFs with poppler-utils (apt-get install -y poppler-utils: pdftoppm, pdfimages, pdftotext).