fix(vitest-pool-workers): filter benign "WebSocket peer disconnected" workerd noise#13833
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Adds the message to the existing ignoreMessages list alongside the other "disconnected:" entries. Surfaced during normal WebSocket teardown on recent workerd versions; not user-actionable.
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What this changes
Adds
"disconnected: WebSocket peer disconnected"to the existingignoreMessagesfilter inpackages/vitest-pool-workers/src/pool/index.ts, alongside the other benigndisconnected:entries that are already filtered out.Why
The pool already filters several benign workerd stderr messages that fire during normal teardown —
disconnected: operation canceled,disconnected: worker_do_not_log; ...,disconnected: WebSocket was aborted. On recent workerd versions, tests that exercise the WebSocket API (including normal lifecycle teardown of WebSocket-using Workers) also surfaceworkerd/api/web-socket.c++:NNN: disconnected: WebSocket peer disconnectedwarnings. They are not user-actionable — tests pass, behavior is correct — and they obscure real regressions in CI logs.In a real workspace running ~270 tests against an
apps/apiWorker, the message reproduces ~18 times per run during normal teardown. The fix is a one-line addition to the sameignoreMessagesarray.How verified
Applied the same one-line change as a local pnpm patch against
@cloudflare/vitest-pool-workers@0.16.0; reran the full test suite — all tests still pass and the targeted stderr lines are now absent. No other warnings or errors are suppressed (the filter is an exactmessage.includes(...)substring match, identical in shape to the other entries).Changeset
.changeset/filter-websocket-peer-disconnected.md—@cloudflare/vitest-pool-workers: patch.