content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.cassandra.journal;
  
  import java.io.IOException;
  import java.nio.ByteBuffer;
  
  import org.junit.Test;
  
  import org.apache.cassandra.io.util.DataInputBuffer;
  import org.apache.cassandra.io.util.DataOutputBuffer;
  
  import static org.junit.Assert.assertEquals;
  
  public class MetadataTest
  {
      @Test
      public void testUpdate()
      {
          Metadata metadata = Metadata.empty();
  
          metadata.update();
          metadata.update();
          metadata.update();
          metadata.update();
  
          assertEquals(4, metadata.totalCount());
      }
  
      @Test
      public void testWriteRead() throws IOException
      {
          Metadata metadata = Metadata.empty();
  
          metadata.update();
          metadata.update();
          metadata.update();
          metadata.update();
  
          try (DataOutputBuffer out = DataOutputBuffer.scratchBuffer.get())
          {
              metadata.write(out);
              ByteBuffer serialized = out.buffer();
  
              try (DataInputBuffer in = new DataInputBuffer(serialized, false))
              {
                  Metadata deserialized = Metadata.read(in);
                  assertEquals(4, deserialized.totalCount());
              }
          }
      }
  }
  