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.client.session;
  
  import org.eclipse.milo.opcua.sdk.client.OpcUaClient;
  import org.eclipse.milo.opcua.sdk.client.api.config.OpcUaClientConfig;
  import org.eclipse.milo.opcua.stack.core.security.SecurityPolicy;
  import org.eclipse.milo.opcua.stack.core.transport.TransportProfile;
  import org.eclipse.milo.opcua.stack.core.types.builtin.LocalizedText;
  import org.eclipse.milo.opcua.stack.core.types.enumerated.MessageSecurityMode;
  import org.eclipse.milo.opcua.stack.core.types.structured.EndpointDescription;
  import org.testng.annotations.Test;
  
  import static org.eclipse.milo.opcua.stack.core.types.builtin.unsigned.Unsigned.uint;
  import static org.testng.Assert.assertNotNull;
  
  public class SessionFsmTest {
  
      @Test
      public void testCloseSessionWhileInactive() throws Exception {
          OpcUaClientConfig clientConfig = OpcUaClientConfig.builder()
              .setEndpoint(new EndpointDescription(
                  "opc.tcp://localhost:12685",
                  null,
                  null,
                  MessageSecurityMode.None,
                  SecurityPolicy.None.getUri(),
                  null,
                  TransportProfile.TCP_UASC_UABINARY.getUri(),
                  null
              ))
              .setApplicationName(LocalizedText.english("Eclipse Milo Test Client"))
              .setApplicationUri("urn:eclipse:milo:examples:client")
              .setRequestTimeout(uint(60000))
              .build();
  
          OpcUaClient client = OpcUaClient.create(clientConfig);
  
          SessionFsm sessionFsm = SessionFsmFactory.newSessionFsm(client);
  
          assertNotNull(sessionFsm.closeSession().get());
      }
  
  }
  