CI failed on an unrelated PR when "seeds a package and hydrates it back
identically" passed vitest's default 5s timeout. The assertions were
fine; the suite is I/O bound and the runner was slow. Two changes.
migrate() ran every DDL statement through its own client.execute(), so
migration 1's ~30 statements each became a separate durable commit and
opening a store paid ~30 fsyncs. Batch each migration into one write
transaction instead: locally a fresh migration drops from ~8.2ms to
~5.0ms, and the gap widens as fsync gets more expensive. It also closes
a real hole -- a crash part-way could previously leave the schema
half-applied while schema_migrations recorded the migration as done,
because the statements and the bookkeeping insert were not atomic.
Then give the package a 30s testTimeout. These suites drive a real
file-backed SQLite database, so their wall time is set by the host
filesystem, not by our code. The 5s default is tuned for CPU-bound unit
tests and leaves no headroom on a contended runner.
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
