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

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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>
This commit is contained in:
Joseph Doherty
2026-03-30 15:49:42 -04:00
parent 50b85d41bd
commit a2883b82d9
109 changed files with 8571 additions and 0 deletions
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120
tests/ZB.MOM.WW.LmxOpcUa.Client.CLI.Tests/SubscribeCommandTests.cs Normal file
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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 SubscribeCommandTests
{
[Fact]
public async Task Execute_SubscribesWithCorrectParameters()
{
var fakeService = new FakeOpcUaClientService();
var factory = new FakeOpcUaClientServiceFactory(fakeService);
var command = new SubscribeCommand(factory)
{
Url = "opc.tcp://localhost:4840",
NodeId = "ns=2;s=TestVar",
Interval = 500
};
using var console = TestConsoleHelper.CreateConsole();
// The subscribe command waits for cancellation. We need to cancel it.
// Use the console's cancellation to trigger stop.
var task = Task.Run(async () =>
{
await command.ExecuteAsync(console);
});
// Give it a moment to subscribe, then cancel
await Task.Delay(100);
console.RequestCancellation();
await task;
fakeService.SubscribeCalls.Count.ShouldBe(1);
fakeService.SubscribeCalls[0].IntervalMs.ShouldBe(500);
fakeService.SubscribeCalls[0].NodeId.Identifier.ShouldBe("TestVar");
}
[Fact]
public async Task Execute_UnsubscribesOnCancellation()
{
var fakeService = new FakeOpcUaClientService();
var factory = new FakeOpcUaClientServiceFactory(fakeService);
var command = new SubscribeCommand(factory)
{
Url = "opc.tcp://localhost:4840",
NodeId = "ns=2;s=TestVar"
};
using var console = TestConsoleHelper.CreateConsole();
var task = Task.Run(async () =>
{
await command.ExecuteAsync(console);
});
await Task.Delay(100);
console.RequestCancellation();
await task;
fakeService.UnsubscribeCalls.Count.ShouldBe(1);
}
[Fact]
public async Task Execute_DisconnectsInFinally()
{
var fakeService = new FakeOpcUaClientService();
var factory = new FakeOpcUaClientServiceFactory(fakeService);
var command = new SubscribeCommand(factory)
{
Url = "opc.tcp://localhost:4840",
NodeId = "ns=2;s=TestVar"
};
using var console = TestConsoleHelper.CreateConsole();
var task = Task.Run(async () =>
{
await command.ExecuteAsync(console);
});
await Task.Delay(100);
console.RequestCancellation();
await task;
fakeService.DisconnectCalled.ShouldBeTrue();
fakeService.DisposeCalled.ShouldBeTrue();
}
[Fact]
public async Task Execute_PrintsSubscriptionMessage()
{
var fakeService = new FakeOpcUaClientService();
var factory = new FakeOpcUaClientServiceFactory(fakeService);
var command = new SubscribeCommand(factory)
{
Url = "opc.tcp://localhost:4840",
NodeId = "ns=2;s=TestVar",
Interval = 2000
};
using var console = TestConsoleHelper.CreateConsole();
var task = Task.Run(async () =>
{
await command.ExecuteAsync(console);
});
await Task.Delay(100);
console.RequestCancellation();
await task;
var output = TestConsoleHelper.GetOutput(console);
output.ShouldContain("Subscribed to ns=2;s=TestVar (interval: 2000ms)");
output.ShouldContain("Unsubscribed.");
}
}