code: /*
   * Copyright (c) 2019 the Eclipse Milo Authors
   *
   * This program and the accompanying materials are made
   * available under the terms of the Eclipse Public License 2.0
   * which is available at https://www.eclipse.org/legal/epl-2.0/
   *
   * SPDX-License-Identifier: EPL-2.0
   */
  
  package org.eclipse.milo.opcua.sdk.server.nodes.factories;
  
  import java.util.List;
  import java.util.Optional;
  
  import org.eclipse.milo.opcua.sdk.core.Reference;
  import org.eclipse.milo.opcua.sdk.server.OpcUaServer;
  import org.eclipse.milo.opcua.sdk.server.UaNodeManager;
  import org.eclipse.milo.opcua.sdk.server.api.AddressSpaceManager;
  import org.eclipse.milo.opcua.sdk.server.api.NodeManager;
  import org.eclipse.milo.opcua.sdk.server.namespaces.loader.NodeLoader;
  import org.eclipse.milo.opcua.sdk.server.nodes.UaNode;
  import org.eclipse.milo.opcua.sdk.server.nodes.UaNodeContext;
  import org.eclipse.milo.opcua.stack.core.Identifiers;
  import org.eclipse.milo.opcua.stack.core.NamespaceTable;
  import org.eclipse.milo.opcua.stack.core.types.builtin.ExpandedNodeId;
  import org.eclipse.milo.opcua.stack.core.types.builtin.NodeId;
  import org.mockito.Mockito;
  import org.mockito.stubbing.Answer;
  import org.testng.annotations.Test;
  
  import static org.testng.Assert.assertNotNull;
  
  public class InstanceDeclarationHierarchyTest {
  
  
      @Test
      public void test() throws Exception {
          NamespaceTable namespaceTable = new NamespaceTable();
  
          UaNodeManager nodeManager = new UaNodeManager();
  
          AddressSpaceManager addressSpaceManager = Mockito.mock(AddressSpaceManager.class);
  
          Mockito
              .when(addressSpaceManager.getManagedNode(Mockito.any(NodeId.class)))
              .then(
                  (Answer<Optional<UaNode>>) invocationOnMock ->
                      nodeManager.getNode(invocationOnMock.getArgument(0))
              );
  
          Mockito
              .when(addressSpaceManager.getManagedNode(Mockito.any(ExpandedNodeId.class)))
              .then(
                  (Answer<Optional<UaNode>>) invocationOnMock ->
                      nodeManager.getNode(invocationOnMock.getArgument(0), namespaceTable)
              );
  
          Mockito
              .when(addressSpaceManager.getManagedReferences(Mockito.any(NodeId.class)))
              .then(
                  (Answer<List<Reference>>) invocationOnMock ->
                      nodeManager.getReferences(invocationOnMock.getArgument(0))
              );
  
          OpcUaServer server = Mockito.mock(OpcUaServer.class);
  
          Mockito.when(server.getAddressSpaceManager()).thenReturn(addressSpaceManager);
          Mockito.when(server.getNamespaceTable()).thenReturn(namespaceTable);
  
          UaNodeContext context = new UaNodeContext() {
              @Override
              public OpcUaServer getServer() {
                  return server;
              }
  
              @Override
              public NodeManager<UaNode> getNodeManager() {
                  return nodeManager;
              }
          };
  
          new NodeLoader(context, nodeManager).loadNodes();
  
          InstanceDeclarationHierarchy idh = InstanceDeclarationHierarchy.create(
              addressSpaceManager,
              namespaceTable,
              Identifiers.AnalogItemType
          );
  
          System.out.println(idh);
  
          assertNotNull(idh);
      }
  
  }
  