test(drivers): failing repro for CONV-4 equipment-tag ResolveHost mis-keying

2026-07-13 12:23:43 -04:00
parent dd01565d9a
commit 8a7701db3f
5 changed files with 181 additions and 1 deletions
@@ -0,0 +1,43 @@
+using Shouldly;
+using Xunit;
+using ZB.MOM.WW.OtOpcUa.Driver.TwinCAT;
+
+namespace ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Tests;
+
+/// <summary>
+///     CONV-4 — <see cref="TwinCATDriver.ResolveHost"/> must resolve an equipment-tag reference
+///     (raw TagConfig JSON) to its OWN device host so per-host breaker keys are correct for
+///     equipment tags, not the first-device fallback.
+/// </summary>
+[Trait("Category", "Unit")]
+public sealed class TwinCATResolveHostTests
+{
+    private const string DeviceA = "ads://5.23.91.23.1.1:851";
+    private const string DeviceB = "ads://5.23.91.23.1.2:851";
+
+    private static TwinCATDriver NewDriver() => new(
+        new TwinCATDriverOptions
+        {
+            Devices = [new TwinCATDeviceOptions(DeviceA), new TwinCATDeviceOptions(DeviceB)],
+            Probe = new TwinCATProbeOptions { Enabled = false },
+            EnableControllerBrowse = false,
+        },
+        "twincat-1", new FakeTwinCATClientFactory());
+
+    /// <summary>An equipment-tag ref naming device B resolves to device B's host, not the first device.</summary>
+    [Fact]
+    public void ResolveHost_EquipmentTagRef_ReturnsItsOwnDeviceHost()
+    {
+        var drv = NewDriver();
+        var json = $$"""{"deviceHostAddress":"{{DeviceB}}","symbolPath":"MAIN.Speed","dataType":"DInt"}""";
+        drv.ResolveHost(json).ShouldBe(DeviceB);
+    }
+
+    /// <summary>An unresolvable ref keeps the current first-device fallback.</summary>
+    [Fact]
+    public void ResolveHost_UnknownRef_KeepsCurrentFallback()
+    {
+        var drv = NewDriver();
+        drv.ResolveHost("totally-unknown").ShouldBe(DeviceA);
+    }
+}