An audit found tests that pass on broken code. The dominant pattern: fire a security
assertion at the all-zeros UUID and accept [403, 404] — the 404 comes from the resource
LOOKUP, not the guard, so the guard can be deleted and the test still passes. Repaired to
use real resources and demand exactly 403:
- banned-user cannot like / comment (the only coverage of those ban invariants)
- host cannot promote a real guest (or self) to admin — asserts nobody's role changed
- IDOR comment-delete already used a real resource; kept
Also inverted recovery.spec's "unknown name → nicht gefunden" test: that asserted the exact
account-enumeration oracle the F4 fix removed, so restoring the vuln would have made it
pass. Now: an unknown name must be byte-identical to a wrong PIN.
New coverage for paths that ran in production but in zero tests:
- quota.spec.ts: storage quota enforcement (413 over-limit, atomic increment under two
uploads held mid-body so both carry a stale total=0 — the real race; a naive Promise.all
version was itself vacuous and is documented as such). Proven to fail without the guard.
- authz-sweep.spec.ts: table-driven guest→403 / host→403 over ALL 19 privileged routes +
anonymous + __truncate. No live hole found; the whole surface is now locked.
- ban / unban / host-comment-delete AFTER release regenerate the keepsake (data-loss
paths that were dead under test); comment-delete mid-build doesn't strand the ZIP.
Lower-severity de-vacuuming: 10 MB comment test hit Caddy's 502 before the real 500-char
cap (now seeds a real upload, 501→400 / 500→201, mutation-verified); XSS name payloads
shortened under the 50-char cap so they actually store+render; ui-rendering XSS test now
proves the payload rendered before asserting no <b>; export page-object locators fixed to
the real "Download" label with a positive empty-state anchor; avatar palette spread test.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Follow-ups from the code review of the test-quality batches:
- Consolidate duplicated helpers into e2e/helpers/: seed.ts (seedUpload,
seedComment, listComments, findFeedRow) and sse.ts (mintSseTicket, openStream,
trackStreamOpens). Refactor authorization-deep, xss-injection, like-comment,
sse-ticket-abuse, ddos, sse-realtime, multi-tab, and SseListener to use them —
the upload/comment/ticket-flow contracts now live in one place each instead of
being re-inlined across 3–7 specs.
- xss-injection display-name loop: it navigated to /feed (which renders uploader
names, not the viewer's) so "nothing fired" passed vacuously — the payload was
never rendered. Now navigate to /account (the actual sink) and add a render
guard asserting the payload reached the DOM as escaped text before checking
__xssFired.
- sse-realtime reconnect: snapshot the stream-open count AFTER backgrounding, so
the "new connection" assertion is attributable to the foreground event and can't
be satisfied by a spurious native/error reconnect before the toggle.
- recover-page: correct the comment (auto-submit is the onPinInput handler, not an
$effect).
44 affected specs verified green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Close two malicious-input gaps flagged in the suite review: XSS was only fuzzed
through display_name, and the SSE ticket flow had no security assertions.
xss-injection:
- Stored XSS in captions — upload with each XSS payload as the caption, mark it
feed-visible, render /feed and assert window.__xssFired stays false, no dialog
fires, and no live `img[onerror]`/`<script>` element is produced (Svelte escaping
renders it as inert text). A trailing CAPMARK gates the assertion on the caption
actually having rendered, so it can't pass vacuously.
- Stored XSS in comments — post the two render-executing payloads as a comment,
open the lightbox (which loads comments) and assert the same inert-render props.
sse-ticket-abuse (new):
- Minting a ticket requires auth (POST /stream/ticket without Bearer → 401).
- Single-use: after the first open consumes the ticket, replaying it → 401 (a 200
would be capability replay). The first open (→200) also proves a fresh ticket works.
- An unminted/garbage ticket → 401.
All verified green against the live backend.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
