The gRPC integration suite was missing live coverage for ReadAggregateAsync and
ReadAtTimeAsync, the two tooled gRPC reads the WCF suite already exercises. Add
them so the full tooled gRPC surface is live-tested like WCF.
- ReadAggregateAsync_OverGrpc_ReturnsTimeWeightedAverageRows
- ReadAggregateAsync_OverGrpc_AcceptsRetrievalMode (Min/MaxWithTime, BestFit)
- ReadAtTimeAsync_OverGrpc_ReturnsRequestedTimestamps
The aggregate tests self-calibrate their window from a real raw sample
(SeedAggregateWindowAsync): the interpolating modes (TimeWeightedAverage /
Min/MaxWithTime) do a slow bounding-value scan and return empty when the window
has no raw data, so a fixed "last N hours" window blows the per-call deadline
against an idle server. Anchoring the window where data actually exists keeps the
scan cheap and returns rows on idle or live servers alike. Adds an optional
HISTORIAN_GRPC_TIMEOUT knob (per-call deadline override) for slow links.
Full tooled gRPC surface now live-green: 15/15 gRPC integration tests pass
against a real 2023 R2 server; 313 offline tests green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01B6mcaT2PjRFKcogzp9UkfC
Joseph Doherty
6d8a7d48f8