When a test process exits while still owning a sandboxed Postgrex
connection, Postgrex.Protocol logs `[error] ... disconnected:
DBConnection.ConnectionError client #PID<...> exited`. It's benign
sandbox cleanup but at :error level it bypasses `capture_log: true`
(which only captures the test process's logs) and clutters every
test run.
Pin Postgrex.Protocol + DBConnection.Connection to :critical so the
noise drops without masking genuine DB error reporting (we never log
at :critical from those modules).
- Create Microwaveprop.Valkey.Adapter behaviour with command/3 + pipeline/3
- Create Microwaveprop.Valkey.RedixAdapter as the production impl
- Inject adapter via Application config; mock with Mox in tests
- Cover all Valkey operations: get, mget, set, mset_with_ttl, zadd,
zrevrange, zrangebyscore, zrem, del, scan_match (multi-cursor)
- Full round-trip tests for encode/decode, error paths, edge cases
Coverage: 78.93% → 79.07%
Passes `capture_log: true` to ExUnit.start/1 so log output emitted
during a passing test stays in the per-test capture buffer instead of
stdout. Drops ~360 lines of noise from the suite: Postgrex teardown
disconnects, expected worker failures, NexradClient 404 stubs,
NotifyListener warm-skip messages, SNMP poll failures, PromEx tag-
drop warnings, and OTel-handler boot errors. Failing tests still
surface their full logs on report, so debugging is unchanged.
Side-effect fixes:
- LoggerFormatTest opts out via @moduletag capture_log: false — it
patches the :default :logger handler and capture_log hot-swaps the
same handler, so the setup lookup would 404.
- TelemetryTest.start_link/1 unlinks the supervisor before the brutal
kill so the exit signal doesn't propagate to the test process.
- Drop unused `import Ecto.Query` in a top_hours mix-task test.
- Drop unused default-arg `attrs \\ %{}` on create_contact/1 in
contact_map_live_test (every caller passes attrs explicitly).
Remaining noise is ~3 lines from oban_pro vendored-dep @impl warnings
(require an upstream patch) plus rare intermittent async teardowns.
