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using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using NUnit.Framework;
using Opc.Ua.Client;
using Opc.Ua.Client.TestFramework;
using Opc.Ua.MachineTool.Client;
using Opc.Ua.MachineTool.Server;
using Opc.Ua.Tests;
namespace Opc.Ua.MachineTool.Tests
{
///
/// Verifies actual per-instance conformance contributions rather than namespace-presence claims.
///
[TestFixture]
[NonParallelizable]
[Category("MachineTool")]
public sealed class MachineToolCapabilityTests
{
///
/// Selected behavior is discoverable per instance, and removal withdraws only that instance's contribution.
///
[Test]
public async Task CapabilitiesDescribeBindingsAndWithdrawRemovedInstancesAsync()
{
await using var fixture = new MachineToolRuntimeFixture();
await fixture.StartAsync().ConfigureAwait(false);
var notifications = new MachineToolNotificationTests.NotificationProvider(
new MachineToolNotificationSnapshot());
await using MachineToolRuntime first =
await MachineToolNotificationTests.BuildAsync(fixture, notifications, "WithMessages")
.ConfigureAwait(false);
await using MachineToolRuntime second = await fixture.Context.AddMachineTool("Mandatory")
.WithProvider(new InMemoryMachineToolProvider(new MachineToolSnapshot()))
.WithIdentification(identity =>
{
identity.Manufacturer = new LocalizedText("Capabilities");
identity.SerialNumber = "Mandatory";
identity.ProductInstanceUri = "urn:capabilities:mandatory";
}).BuildAsync().ConfigureAwait(false);
const string errors = "MachineTool Notification - Errors and Alerts";
Assert.That(first.Capabilities.ConformanceUnits.ToArray()!.Any(unit => unit.Name == errors), Is.True);
Assert.That(second.Capabilities.ConformanceUnits.ToArray()!.Any(unit => unit.Name == errors), Is.False);
Assert.That(fixture.Context.Manager.ConformanceUnits.ToArray()!.Any(unit => unit.Name == errors), Is.True);
Assert.That(first.Capabilities.ConformanceUnits.ToArray()!.Any(unit =>
unit.Name == "MachineTool Production Machinery Job Management"), Is.False);
ITelemetryContext telemetry = NUnitTelemetryContext.Create();
await using var transport = new ClientFixture(telemetry);
await transport.LoadClientConfigurationAsync(fixture.Root, "CapabilityClient").ConfigureAwait(false);
using ISession session = await transport.ConnectAsync(fixture.Endpoint, SecurityPolicies.None)
.ConfigureAwait(false);
await using MachineToolClient client = session.CreateMachineToolClient(telemetry);
Assert.That(session.NamespaceUris.GetIndex(MachineToolCapabilityNames.NamespaceUri), Is.GreaterThan(0),
"The instance extension namespace must be published in the real server namespace table.");
var children = new System.Collections.Generic.List();
first.State.GetChildren(fixture.Context.Context, children);
Assert.That(children.Find(child => child.BrowseName.Name == "Capabilities")!.ReferenceTypeId,
Is.EqualTo(ReferenceTypeIds.HasComponent));
MachineToolCapabilityReadSnapshot actual = await client.GetCapabilitiesAsync(first.NodeId)
.ConfigureAwait(false);
Assert.That(actual.DeclarationAvailable, Is.True);
Assert.That(actual.Capabilities!.MachineId, Is.EqualTo(first.NodeId));
Assert.That(actual.Capabilities.ConformanceUnits.ToArray()!.Any(unit => unit.Name == errors), Is.True);
Assert.That(actual.Capabilities.Monitoring.PotentialMonitoredItems, Is.EqualTo(19),
"Explicit empty notifications add Notification and Messages notifiers to the mandatory seventeen.");
await first.DisposeAsync().ConfigureAwait(false);
Assert.That(fixture.Context.Manager.ConformanceUnits.ToArray()!.Any(unit => unit.Name == errors), Is.False);
Assert.That(second.Capabilities.ConformanceUnits.Count, Is.GreaterThan(0));
await session.CloseAsync(CancellationToken.None).ConfigureAwait(false);
}
///
/// Optional absence remains distinct from malformed, denied or oversized per-instance declarations.
///
[TestCase(0)]
[TestCase(1)]
[TestCase(2)]
[TestCase(3)]
[TestCase(4)]
[TestCase(5)]
[TestCase(6)]
[TestCase(7)]
public async Task CapabilityReadsPreserveAbsenceAndRejectInvalidDeclarationsAsync(int scenario)
{
await using var fixture = new MachineToolRuntimeFixture();
await fixture.StartAsync().ConfigureAwait(false);
var provider = new MachineToolNotificationTests.NotificationProvider(new MachineToolNotificationSnapshot());
await using MachineToolRuntime runtime =
await MachineToolNotificationTests.BuildAsync(fixture, provider).ConfigureAwait(false);
ushort ns = (ushort)fixture.Context.Context.NamespaceUris.GetIndex(MachineToolCapabilityNames.NamespaceUri);
var declaration = (BaseObjectState)runtime.State.FindChild(fixture.Context.Context,
new QualifiedName(MachineToolCapabilityNames.Capabilities, ns))!;
string fieldName = scenario switch
{
4 => "ServerProfiles",
5 => "MaximumSessions",
6 => "SupportsAll",
_ => "ConformanceUnits"
};
var variable = (BaseVariableState)declaration.FindChild(
fixture.Context.Context, new QualifiedName(fieldName, ns))!;
switch (scenario)
{
case 0:
runtime.State.RemoveChild(declaration);
await fixture.Context.Manager.DeleteNodeAsync(
fixture.Context.Manager.SystemContext, declaration.NodeId).ConfigureAwait(false);
break;
case 1:
declaration.RemoveChild(variable);
await fixture.Context.Manager.DeleteNodeAsync(
fixture.Context.Manager.SystemContext, variable.NodeId).ConfigureAwait(false);
break;
case 2:
variable.StatusCode = StatusCodes.BadUserAccessDenied;
break;
default:
Variant value = scenario switch
{
4 => Variant.From(Enumerable.Repeat("profile", 13).ToArray().ToArrayOf()),
7 => Variant.From(new[] { new QualifiedName(new string('x', 70000), ns) }.ToArrayOf()),
_ => Variant.From("not the declared type")
};
variable.OnSimpleReadValueAsync = (_, _, _) =>
new ValueTask(
new AttributeSimpleReadResult(ServiceResult.Good, value));
break;
}
ITelemetryContext telemetry = NUnitTelemetryContext.Create();
await using var transport = new ClientFixture(telemetry);
await transport.LoadClientConfigurationAsync(fixture.Root, "CapabilityValidation").ConfigureAwait(false);
using ISession session = await transport.ConnectAsync(fixture.Endpoint, SecurityPolicies.None)
.ConfigureAwait(false);
await using MachineToolClient client = session.CreateMachineToolClient(telemetry);
if (scenario == 0)
{
MachineToolCapabilityReadSnapshot result = await client.GetCapabilitiesAsync(runtime.NodeId)
.ConfigureAwait(false);
Assert.That(result.DeclarationAvailable, Is.False);
Assert.That(result.Capabilities, Is.Null);
}
else
{
ServiceResultException error = (await Assert.ThrowsAsync(async () =>
await client.GetCapabilitiesAsync(runtime.NodeId).ConfigureAwait(false)))!;
StatusCode expected = scenario switch
{
2 => StatusCodes.BadUserAccessDenied,
7 => StatusCodes.BadEncodingLimitsExceeded,
_ => StatusCodes.BadDecodingError
};
Assert.That(error.StatusCode, Is.EqualTo(expected));
}
await session.CloseAsync(CancellationToken.None).ConfigureAwait(false);
}
}
}