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   * 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.tcm;
  
  import org.junit.Test;
  
  import accord.utils.Gen;
  import org.apache.cassandra.config.DatabaseDescriptor;
  import org.apache.cassandra.io.util.DataInputBuffer;
  import org.apache.cassandra.io.util.DataOutputBuffer;
  import org.apache.cassandra.service.accord.AccordFastPath;
  import org.apache.cassandra.service.accord.AccordStaleReplicas;
  import org.apache.cassandra.service.consensus.migration.ConsensusMigrationState;
  import org.apache.cassandra.tcm.membership.NodeVersion;
  import org.apache.cassandra.tcm.serialization.AsymmetricMetadataSerializers;
  import org.apache.cassandra.tcm.serialization.Version;
  import org.apache.cassandra.utils.CassandraGenerators.ClusterMetadataBuilder;
  import org.apache.cassandra.utils.Generators;
  import org.assertj.core.api.Assertions;
  
  import static accord.utils.Property.qt;
  
  public class ClusterMetadataSerializerTest
  {
      static
      {
          DatabaseDescriptor.toolInitialization();
      }
  
      @Test
      public void serdeLatest()
      {
          DataOutputBuffer output = new DataOutputBuffer();
          qt().forAll(Generators.toGen(new ClusterMetadataBuilder().build())).check(cm -> {
              AsymmetricMetadataSerializers.testSerde(output, ClusterMetadata.serializer, cm, NodeVersion.CURRENT_METADATA_VERSION);
          });
      }
  
      @Test
      public void serdeWithoutAccord()
      {
          DataOutputBuffer output = new DataOutputBuffer();
          Gen<ClusterMetadata> gen = Generators.toGen(new ClusterMetadataBuilder().build()).filter(cm -> {
              if (!cm.consensusMigrationState.equals(ConsensusMigrationState.EMPTY))
                  return true;
              if (!cm.accordStaleReplicas.equals(AccordStaleReplicas.EMPTY))
                  return true;
              if (!cm.accordFastPath.equals(AccordFastPath.EMPTY))
                  return true;
              return false;
          });
          qt().forAll(gen).check(cm -> {
              output.clear();
              Version version = Version.V2; // this is the version before accord
              long expectedSize = ClusterMetadata.serializer.serializedSize(cm, version);
              ClusterMetadata.serializer.serialize(cm, output, version);
              Assertions.assertThat(output.getLength()).describedAs("The serialized size and bytes written do not match").isEqualTo(expectedSize);
              DataInputBuffer in = new DataInputBuffer(output.unsafeGetBufferAndFlip(), false);
              ClusterMetadata read = ClusterMetadata.serializer.deserialize(in, version);
              Assertions.assertThat(read).isNotEqualTo(cm);
  
              Assertions.assertThat(read.consensusMigrationState).isEqualTo(ConsensusMigrationState.EMPTY);
              Assertions.assertThat(read.accordStaleReplicas).isEqualTo(AccordStaleReplicas.EMPTY);
              Assertions.assertThat(read.accordFastPath).isEqualTo(AccordFastPath.EMPTY);
          });
      }
  }
  