browse/test/cdp-session-cleanup.test.ts pins the invariant that no
source file outside cdp-bridge.ts may call newCDPSession() directly.
If a future refactor reintroduces the direct call, CI fails with a
file:line list and a pointer to the right helper to use instead
(withCdpSession for one-shot, getOrCreateCdpSession for cached).
Also covers the helpers themselves with fake-Page unit tests:
- withCdpSession detaches on success
- withCdpSession detaches on throw (the actual leak fix)
- withCdpSession swallows detach errors so they don't mask fn errors
- getOrCreateCdpSession caches the session across calls
- close hook detaches AND clears the cache
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Garry Tan