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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.
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  package com.datastax.oss.driver.core;
  
  import static com.datastax.oss.simulacron.common.stubbing.PrimeDsl.rows;
  import static com.datastax.oss.simulacron.common.stubbing.PrimeDsl.serverError;
  import static com.datastax.oss.simulacron.common.stubbing.PrimeDsl.when;
  import static org.assertj.core.api.Assertions.assertThat;
  import static org.assertj.core.api.Assertions.fail;
  
  import com.datastax.oss.driver.api.core.CqlSession;
  import com.datastax.oss.driver.api.core.cql.ColumnDefinition;
  import com.datastax.oss.driver.api.core.cql.Row;
  import com.datastax.oss.driver.api.core.metadata.Node;
  import com.datastax.oss.driver.api.core.servererrors.ServerError;
  import com.datastax.oss.driver.api.core.type.DataTypes;
  import com.datastax.oss.driver.api.testinfra.session.SessionRule;
  import com.datastax.oss.driver.api.testinfra.simulacron.SimulacronRule;
  import com.datastax.oss.driver.categories.ParallelizableTests;
  import com.datastax.oss.driver.internal.SerializationHelper;
  import com.datastax.oss.simulacron.common.cluster.ClusterSpec;
  import org.junit.Before;
  import org.junit.ClassRule;
  import org.junit.Test;
  import org.junit.experimental.categories.Category;
  import org.junit.rules.RuleChain;
  import org.junit.rules.TestRule;
  
  @Category(ParallelizableTests.class)
  public class SerializationIT {
    private static final SimulacronRule SIMULACRON_RULE =
        new SimulacronRule(ClusterSpec.builder().withNodes(1));
  
    private static final SessionRule<CqlSession> SESSION_RULE =
        SessionRule.builder(SIMULACRON_RULE).build();
  
    @ClassRule
    public static final TestRule CHAIN = RuleChain.outerRule(SIMULACRON_RULE).around(SESSION_RULE);
  
    @Before
    public void clear() {
      SIMULACRON_RULE.cluster().clearPrimes(true);
    }
  
    @Test
    public void should_serialize_node() {
      // Given
      Node node = SESSION_RULE.session().getMetadata().getNodes().values().iterator().next();
  
      // When
      Node deserializedNode = SerializationHelper.serializeAndDeserialize(node);
  
      // Then
      // verify a few fields, no need to be exhaustive
      assertThat(deserializedNode.getHostId()).isEqualTo(node.getHostId());
      assertThat(deserializedNode.getEndPoint()).isEqualTo(node.getEndPoint());
      assertThat(deserializedNode.getCassandraVersion()).isEqualTo(node.getCassandraVersion());
    }
  
    @Test
    public void should_serialize_driver_exception() {
      // Given
      SIMULACRON_RULE.cluster().prime(when("mock query").then(serverError("mock server error")));
      try {
        SESSION_RULE.session().execute("mock query");
        fail("Expected a ServerError");
      } catch (ServerError error) {
        assertThat(error.getExecutionInfo()).isNotNull();
  
        // When
        ServerError deserializedError = SerializationHelper.serializeAndDeserialize(error);
  
        // Then
        assertThat(deserializedError.getMessage()).isEqualTo("mock server error");
        assertThat(deserializedError.getCoordinator().getEndPoint())
            .isEqualTo(error.getCoordinator().getEndPoint());
        assertThat(deserializedError.getExecutionInfo()).isNull(); // transient
      }
    }
  
    @Test
    public void should_serialize_row() {
      // Given
      SIMULACRON_RULE
          .cluster()
          .prime(when("mock query").then(rows().row("t", "mock data").columnTypes("t", "varchar")));
      Row row = SESSION_RULE.session().execute("mock query").one();
  
      // When
      row = SerializationHelper.serializeAndDeserialize(row);
  
      // Then
      ColumnDefinition columnDefinition = row.getColumnDefinitions().get("t");
      assertThat(columnDefinition.getType()).isEqualTo(DataTypes.TEXT);
      assertThat(row.getString("t")).isEqualTo("mock data");
    }
  }
  