UA-.NETStandard/tests/Opc.Ua.InformationModel.Tests/NodeManagementAddRefTests.cs

/* ========================================================================
 * Copyright (c) 2005-2025 The OPC Foundation, Inc. All rights reserved.
 *
 * OPC Foundation MIT License 1.00
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 *
 * The complete license agreement can be found here:
 * http://opcfoundation.org/License/MIT/1.00/
 * ======================================================================*/

using System.Threading;
using System.Threading.Tasks;
using NUnit.Framework;
using Opc.Ua.Client.TestFramework;

namespace Opc.Ua.InformationModel.Tests
{
    /// <summary>
    /// compliance tests for Node Management Add Ref.
    /// </summary>
    [TestFixture]
    [Category("Conformance")]
    [Category("NodeManagement")]
    public class NodeManagementAddRefTests : TestFixture
    {
        [Description("Add a forward reference between two existing nodes and verify it succeeds.")]
        [Test]
        public async Task AddReferenceBetweenExistingNodesSucceedsAsync()
        {
            try
            {
                AddReferencesResponse response =
                    await Session.AddReferencesAsync(
                        null,
                        new AddReferencesItem[]
                        {
                            new() {
                                SourceNodeId = ObjectIds.ObjectsFolder,
                                ReferenceTypeId = ReferenceTypeIds.Organizes,
                                IsForward = true,
                                TargetNodeId = new ExpandedNodeId(ObjectIds.Server),
                                TargetNodeClass = NodeClass.Object
                            }
                        }.ToArrayOf(),
                        CancellationToken.None).ConfigureAwait(false);

                Assert.That(response.Results.Count, Is.EqualTo(1));
                StatusCode statusCode = response.Results[0];

                // The reference may already exist (Server is already a child of
                // ObjectsFolder via Organizes) so accept Good or DuplicateReferenceNotAllowed.
                // Additionally, servers may opt out of NodeManagement on the
                // source's owning NodeManager (CoreNodeManager) and return
                // BadUserAccessDenied or BadNotSupported.
                Assert.That(
                    StatusCode.IsGood(statusCode) ||
                    statusCode == StatusCodes.BadDuplicateReferenceNotAllowed ||
                    statusCode == StatusCodes.BadUserAccessDenied ||
                    statusCode == StatusCodes.BadNotSupported,
                    Is.True,
                    $"AddReferences returned unexpected status: {statusCode}");
            }
            catch (ServiceResultException ex)
                when (ex.StatusCode == StatusCodes.BadServiceUnsupported)
            {
                Assert.Ignore("AddReferences service not supported by ReferenceServer.");
            }
        }
    }
}