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fix(focas-tests): honour fixture endpoint + fix mock timer endianness (9F/1P -> 10/10)
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Two test/fixture bugs; NO OtOpcUa driver change.

1. Topology: FocasSimFixture reads an env-overridable endpoint
   (OTOPCUA_FOCAS_SIM_ENDPOINT, default localhost:8193) and exposes Host/Port,
   but WireBackendTests + WireBackendCoverageTests hardcoded
   focas://127.0.0.1:8193. Against a remote fixture the skip-gate passed
   (remote reachable) but the driver dialed localhost -> KeyNotFound. Added a
   DeviceUri property to the fixture; each test now derives DeviceHost from it.
   Recovered 8 of 9.

2. Mock timer endianness (surfaced once #1 let the tests reach the mock): the
   last failure read 60397977600 for a 3600 s power-on timer (= 0x3C000000 x 60).
   The focas-mock's _wire_timer encoded the minute/msec fields big-endian (_u32),
   but cnc_rdtimer's timer fields are LITTLE-endian on real hardware — a
   documented, live-31i-B-validated quirk that FocasWireClient.ParseTimer decodes
   LE (docs/plans/2026-06-25-focas-pdu-v3-30i-b-support.md). The driver was
   correct; the mock was wrong. _wire_timer now emits little-endian (_u32_le).

Suite 9F/1P -> 10/10 against the remote fixture at ~/otopcua-focas.
Integration-sweep follow-up #3.
This commit is contained in:
Joseph Doherty
2026-07-15 05:51:47 -04:00
parent 00d8422cef
commit 7982043673
5 changed files with 47 additions and 18 deletions
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tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.FOCAS.IntegrationTests/FocasSimFixture.cs
+5
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@@ -29,6 +29,11 @@ public sealed class FocasSimFixture : IAsyncDisposable
/// <summary>Gets the TCP port of the focas-mock simulator.</summary>
public int Port { get; }
/// <summary>Gets the <c>focas://host:port</c> device URI the driver connects to — derived from
/// <see cref="Host"/>/<see cref="Port"/> so tests honour <c>OTOPCUA_FOCAS_SIM_ENDPOINT</c> (a remote
/// fixture on the Docker host) instead of assuming a localhost-colocated mock.</summary>
public string DeviceUri => $"focas://{Host}:{Port}";
/// <summary>focas-mock profile stem the fixture should load (e.g. <c>fwlib30i64</c>,
/// <c>ThirtyOne_i</c> — both resolve via the mock's alias table). Null when unset.</summary>
public string? ExpectedProfile { get; }