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fix(driver-historian-wonderware-client): resolve Medium code-review finding (Driver.Historian.Wonderware.Client-009)

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Add six previously-missing edge-case tests to WonderwareHistorianClientTests:
(2) WriteBatchAsync transport-drop catch path returns RetryPlease for all events;
(3) InvokeAsync second-attempt-also-fails propagates the exception;
(4) stalled sidecar fires OperationCanceledException within CallTimeout;
(5) HistoryAggregateType.Total throws NotSupportedException via ReadProcessedAsync;
(6) sidecar wrong-MessageKind reply throws InvalidDataException.

Extend FakeSidecarServer with DisconnectBeforeReply, ReplyWithWrongKind, and
StallAfterRequest test knobs to support these scenarios.

Add ContractsWireParityTests.cs (11 tests) to pin the MessagePack byte layout,
round-trip correctness, MessageKind enum values, and Framing constants — catching
silent [Key] index drift between the client and sidecar mirror copies without
requiring a cross-TFM (net10 vs net48) project reference.

Test count grew from 11 to 27; all 27 pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Joseph Doherty
2026-05-22 09:26:56 -04:00
parent 03c2028669
commit 1c6db86631
4 changed files with 399 additions and 3 deletions
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6
code-reviews/Driver.Historian.Wonderware.Client/findings.md
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@@ -7,7 +7,7 @@
| Review date | 2026-05-22 |
| Commit reviewed | `76d35d1` |
| Status | Reviewed |
| Open findings | 9 |
| Open findings | 5 |
## Checklist coverage
@@ -241,7 +241,7 @@ can be dropped.
| Severity | Medium |
| Category | Testing coverage |
| Location | `tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Client.Tests/WonderwareHistorianClientTests.cs` |
| Status | Open |
| Status | Resolved |
**Description:** The suite covers happy paths, server-error, bad-secret, a single
reconnect and health counters, but several critical paths are untested:
@@ -263,7 +263,7 @@ wire-parity test the source comments commit to: serialize each DTO with the clie
and assert byte-equality against the sidecar `Driver.Historian.Wonderware.Ipc` copy, so a
silent `[Key]` drift between the two duplicated contract sets is caught at build time.
**Resolution:** _(open)_
**Resolution:** Resolved 2026-05-22 — added six missing tests to `WonderwareHistorianClientTests.cs` (WriteBatchAsync transport-drop catch path returns RetryPlease; InvokeAsync both-attempts-fail propagates exception; stalled sidecar fires OperationCanceledException within CallTimeout; ReadProcessedAsync Total aggregate throws NotSupportedException; sidecar wrong-kind reply throws InvalidDataException) and extended `FakeSidecarServer` with `DisconnectBeforeReply`, `ReplyWithWrongKind`, and `StallAfterRequest` test knobs; added new `ContractsWireParityTests.cs` with 11 tests pinning MessagePack byte layout, round-trip correctness, MessageKind enum values, and Framing constants to catch silent `[Key]` index drift between the client and sidecar mirror copies. Total test count grew from 11 to 27, all passing.
### Driver.Historian.Wonderware.Client-010