test: Also run firefox & webkit automated tests (#2651)

2026-08-03 16:48:30 -07:00
parent 4a7c1b62b0
commit 18ea725564
12 changed files with 1132 additions and 162 deletions
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+# Browser test public directory
+
+## Why this directory is here
+
+Served at the root of the page the browser tests run in, by way of `publicDir`
+in `vitest.browser.config.ts`. Named rather than left at its default of
+`public/` in the project root, which is the directory a Vite build copies into
+its output: nothing a test needs belongs in a released card.
+
+## Why `mockServiceWorker.js` must not be touched
+
+It is Mock Service Worker's own script, copied here by `msw init`. Do not edit
+it and do not rename it: `msw.workerDirectory` in `package.json` records this
+path, and installing dependencies copies the script here again from whichever
+version of `msw` is installed. That is what stops it going stale against a
+version bump, and it also means any local change is lost.
+
+## Why the tests serve media this way
+
+What the tests do with it is in `tests/browser/test-media.ts`: a camera that
+fails or goes quiet is answered from within the page, so a request nobody will
+ever answer costs no browser connection. That matters because a browser allows
+only a handful of connections to one host, and everything the page asks for
+afterwards queues behind the ones a test is deliberately holding open. The card
+imports some of its own code only when it is needed, so what starves is not
+just the next picture but the next module.