Add cross-platform OPC UA client stack: shared library, CLI tool, and Avalonia UI

Implements Client.Shared (IOpcUaClientService with connection lifecycle, failover, browse, read/write, subscriptions, alarms, history, redundancy), Client.CLI (8 CliFx commands mirroring tools/opcuacli-dotnet), and Client.UI (Avalonia desktop app with tree browser, read/write, subscriptions, alarms, and history tabs). All three target .NET 10 and are covered by 249 unit tests. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-30 15:49:42 -04:00
parent 50b85d41bd
commit a2883b82d9
109 changed files with 8571 additions and 0 deletions
--- a/tests/ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests/WriteCommandTests.cs
+++ b/tests/ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests/WriteCommandTests.cs
@@ -0,0 +1,103 @@
+using Opc.Ua;
+using Shouldly;
+using Xunit;
+using ZB.MOM.WW.LmxOpcUa.Client.CLI.Commands;
+using ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests.Fakes;
+
+namespace ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests;
+
+public class WriteCommandTests
+{
+    [Fact]
+    public async Task Execute_WritesSuccessfully()
+    {
+        var fakeService = new FakeOpcUaClientService
+        {
+            ReadValueResult = new DataValue(new Variant(42)),
+            WriteStatusCodeResult = StatusCodes.Good
+        };
+        var factory = new FakeOpcUaClientServiceFactory(fakeService);
+        var command = new WriteCommand(factory)
+        {
+            Url = "opc.tcp://localhost:4840",
+            NodeId = "ns=2;s=MyVar",
+            Value = "100"
+        };
+
+        using var console = TestConsoleHelper.CreateConsole();
+        await command.ExecuteAsync(console);
+
+        var output = TestConsoleHelper.GetOutput(console);
+        output.ShouldContain("Write successful: ns=2;s=MyVar = 100");
+    }
+
+    [Fact]
+    public async Task Execute_ReportsFailure()
+    {
+        var fakeService = new FakeOpcUaClientService
+        {
+            ReadValueResult = new DataValue(new Variant("current")),
+            WriteStatusCodeResult = StatusCodes.BadNotWritable
+        };
+        var factory = new FakeOpcUaClientServiceFactory(fakeService);
+        var command = new WriteCommand(factory)
+        {
+            Url = "opc.tcp://localhost:4840",
+            NodeId = "ns=2;s=ReadOnly",
+            Value = "newvalue"
+        };
+
+        using var console = TestConsoleHelper.CreateConsole();
+        await command.ExecuteAsync(console);
+
+        var output = TestConsoleHelper.GetOutput(console);
+        output.ShouldContain("Write failed:");
+    }
+
+    [Fact]
+    public async Task Execute_ReadsCurrentValueThenWrites()
+    {
+        var fakeService = new FakeOpcUaClientService
+        {
+            ReadValueResult = new DataValue(new Variant(3.14)),
+            WriteStatusCodeResult = StatusCodes.Good
+        };
+        var factory = new FakeOpcUaClientServiceFactory(fakeService);
+        var command = new WriteCommand(factory)
+        {
+            Url = "opc.tcp://localhost:4840",
+            NodeId = "ns=2;s=FloatVar",
+            Value = "2.718"
+        };
+
+        using var console = TestConsoleHelper.CreateConsole();
+        await command.ExecuteAsync(console);
+
+        // Should read first to get current type, then write
+        fakeService.ReadNodeIds.Count.ShouldBe(1);
+        fakeService.WriteValues.Count.ShouldBe(1);
+        fakeService.WriteValues[0].Value.ShouldBeOfType<double>();
+    }
+
+    [Fact]
+    public async Task Execute_DisconnectsInFinally()
+    {
+        var fakeService = new FakeOpcUaClientService
+        {
+            ReadValueResult = new DataValue(new Variant("test"))
+        };
+        var factory = new FakeOpcUaClientServiceFactory(fakeService);
+        var command = new WriteCommand(factory)
+        {
+            Url = "opc.tcp://localhost:4840",
+            NodeId = "ns=2;s=Node",
+            Value = "value"
+        };
+
+        using var console = TestConsoleHelper.CreateConsole();
+        await command.ExecuteAsync(console);
+
+        fakeService.DisconnectCalled.ShouldBeTrue();
+        fakeService.DisposeCalled.ShouldBeTrue();
+    }
+}