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.events.conversions;
  
  import org.eclipse.milo.opcua.stack.core.types.builtin.ExpandedNodeId;
  import org.eclipse.milo.opcua.stack.core.types.builtin.NodeId;
  import org.eclipse.milo.opcua.stack.core.util.Namespaces;
  import org.testng.annotations.Test;
  
  import static org.eclipse.milo.opcua.sdk.server.events.conversions.ExpandedNodeIdConversions.expandedNodeIdToNodeId;
  import static org.eclipse.milo.opcua.sdk.server.events.conversions.ExpandedNodeIdConversions.expandedNodeIdToString;
  import static org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.Unsigned.uint;
  import static org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.Unsigned.ushort;
  import static org.testng.Assert.assertEquals;
  import static org.testng.Assert.assertNull;
  
  public class ExpandedNodeIdConversionsTest {
  
      @Test
      public void testExpandedNodeIdToNodeId() {
          assertNull(
              expandedNodeIdToNodeId(
                  new ExpandedNodeId(ushort(0), Namespaces.OPC_UA, "foo", uint(2))));
  
          NodeId nodeId = new NodeId(0, "bar");
  
          assertEquals(expandedNodeIdToNodeId(nodeId.expanded()), nodeId);
      }
  
      @Test
      public void testExpandedNodeIdToString() {
          ExpandedNodeId e1 = new ExpandedNodeId(ushort(0), Namespaces.OPC_UA, "foo", uint(2));
          ExpandedNodeId e2 = new NodeId(1, "bar").expanded();
  
          assertEquals(expandedNodeIdToString(e1), e1.toParseableString());
          assertEquals(expandedNodeIdToString(e2), e2.toParseableString());
      }
  
  }
  