dangernoodle-io / TaipanMiner / 27077371314

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test(webui): stabilize coverage nondeterminism in Pool/Diagnostics/diagnosticsState (#514)

flushSync() after every mount in Pool.test.ts + Diagnostics.test.ts forces
Svelte's scheduled $derived/$effect queue to drain synchronously, so component
template/derived lines are covered deterministically instead of racing V8's
coverage sampling. In diagnosticsState.test.ts, advance the bounded backoff
window (withRetry's 400ms setTimeout) before clearAllTimers in afterEach so
retry/catch paths resolve identically every run rather than being killed
mid-flight.

cuts per-run miner lines-hit variance from ~15 lines to ~0 (Pool/Diagnostics
fully stable across 8 runs; diagnosticsState pinned to max 7/8). tests green
(1109 passed / 1 skipped).

2810 of 3510 branches covered (80.06%)

Branch coverage included in aggregate %.

5463 of 5637 relevant lines covered (96.91%)

146529.2 hits per line