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.stack.core.channel.messages;
  
  import io.netty.buffer.ByteBuf;
  import io.netty.buffer.Unpooled;
  import org.eclipse.milo.opcua.stack.core.UaException;
  import org.testng.annotations.Test;
  
  import static org.testng.Assert.assertNotNull;
  import static org.testng.Assert.assertThrows;
  
  public class HelloMessageTest {
  
      @Test
      public void testDecodeFailsWhenEndpointUrlTooLarge() throws UaException {
          for (int i = 0; i < HelloMessage.MAX_ENDPOINT_URL_LENGTH * 2; i++) {
              ByteBuf buffer = Unpooled.buffer();
              buffer.writeIntLE(0);
              buffer.writeIntLE(8192);
              buffer.writeIntLE(8192);
              buffer.writeIntLE(0);
              buffer.writeIntLE(0);
              buffer.writeIntLE(i);
              byte[] bs = new byte[i];
              buffer.writeBytes(bs);
  
              if (i <= HelloMessage.MAX_ENDPOINT_URL_LENGTH) {
                  assertNotNull(HelloMessage.decode(buffer));
              } else {
                  assertThrows(UaException.class, () -> {
                      HelloMessage.decode(buffer);
                  });
              }
              buffer.release();
          }
      }
  
  }
  