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lmxopcua/tests/Drivers/ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.Tests/OpcUaClientSubscribeAndProbeTests.cs
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docs: backfill XML documentation across 756 files
Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public
members surfaced by commentchecker — resolves 5,847 of 5,869 issues
(99.6%) across three /fixdocs passes.
2026-05-28 08:10:17 -04:00

56 lines
2.4 KiB
C#

using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
namespace ZB.MOM.WW.OtOpcUa.Driver.OpcUaClient.Tests;
/// <summary>
/// Scaffold tests for <c>ISubscribable</c> + <c>IHostConnectivityProbe</c> that don't
/// need a live remote server. Live-session tests (subscribe/unsubscribe round-trip,
/// keep-alive transitions) land in a follow-up PR once the in-process OPC UA server
/// fixture is scaffolded.
/// </summary>
[Trait("Category", "Unit")]
public sealed class OpcUaClientSubscribeAndProbeTests
{
/// <summary>Verifies that subscribe without initialization throws InvalidOperationException.</summary>
[Fact]
public async Task SubscribeAsync_without_initialize_throws_InvalidOperationException()
{
using var drv = new OpcUaClientDriver(new OpcUaClientDriverOptions(), "opcua-sub-uninit");
await Should.ThrowAsync<InvalidOperationException>(async () =>
await drv.SubscribeAsync(["ns=2;s=Demo"], TimeSpan.FromMilliseconds(100), TestContext.Current.CancellationToken));
}
/// <summary>Verifies that unsubscribe with unknown handle is a no-op.</summary>
[Fact]
public async Task UnsubscribeAsync_with_unknown_handle_is_noop()
{
using var drv = new OpcUaClientDriver(new OpcUaClientDriverOptions(), "opcua-sub-unknown");
// UnsubscribeAsync returns cleanly for handles it doesn't recognise — protects against
// the caller's race with server-side cleanup after a session drop.
await drv.UnsubscribeAsync(new FakeHandle(), TestContext.Current.CancellationToken);
}
/// <summary>Verifies that GetHostStatuses returns endpoint URL row before initialization.</summary>
[Fact]
public void GetHostStatuses_returns_endpoint_url_row_pre_init()
{
using var drv = new OpcUaClientDriver(
new OpcUaClientDriverOptions { EndpointUrl = "opc.tcp://plc.example:4840" },
"opcua-hosts");
var rows = drv.GetHostStatuses();
rows.Count.ShouldBe(1);
rows[0].HostName.ShouldBe("opc.tcp://plc.example:4840",
"host identity mirrors the endpoint URL so the Admin /hosts dashboard can link back to the remote server");
rows[0].State.ShouldBe(HostState.Unknown);
}
/// <summary>A fake subscription handle for testing.</summary>
private sealed class FakeHandle : ISubscriptionHandle
{
/// <inheritdoc />
public string DiagnosticId => "fake";
}
}