hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/io/serializer/avro/TestAvroSerialization.java

/**
 * 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.hadoop.io.serializer.avro;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.serializer.SerializationFactory;
import org.apache.hadoop.io.serializer.SerializationTestUtil;
import org.junit.Test;

public class TestAvroSerialization {

  private static final Configuration conf = new Configuration();

  @Test
  public void testSpecific() throws Exception {
    AvroRecord before = new AvroRecord();
    before.intField = 5;
    AvroRecord after = SerializationTestUtil.testSerialization(conf, before);
    assertEquals(before, after);
  }

  @Test
  public void testReflectPkg() throws Exception {
    Record before = new Record();
    before.x = 10;
    conf.set(AvroReflectSerialization.AVRO_REFLECT_PACKAGES, 
        before.getClass().getPackage().getName());
    Record after = SerializationTestUtil.testSerialization(conf, before);
    assertEquals(before, after);
  }

  @Test
  public void testAcceptHandlingPrimitivesAndArrays() throws Exception {
    SerializationFactory factory = new SerializationFactory(conf);
    assertNull(factory.getSerializer(byte[].class));
    assertNull(factory.getSerializer(byte.class));
  }

  @Test
  public void testReflectInnerClass() throws Exception {
    InnerRecord before = new InnerRecord();
    before.x = 10;
    conf.set(AvroReflectSerialization.AVRO_REFLECT_PACKAGES, 
        before.getClass().getPackage().getName());
    InnerRecord after = SerializationTestUtil.testSerialization(conf, before);
    assertEquals(before, after);
  }

  @Test
  public void testReflect() throws Exception {
    RefSerializable before = new RefSerializable();
    before.x = 10;
    RefSerializable after = 
      SerializationTestUtil.testSerialization(conf, before);
    assertEquals(before, after);
  }
  
  public static class InnerRecord {
    public int x = 7;

    @Override
    public int hashCode() {
      return x;
    }

    @Override
    public boolean equals(Object obj) {
      if (this == obj)
        return true;
      if (obj == null)
        return false;
      if (getClass() != obj.getClass())
        return false;
      final InnerRecord other = (InnerRecord) obj;
      if (x != other.x)
        return false;
      return true;
    }
  }

  public static class RefSerializable implements AvroReflectSerializable {
    public int x = 7;

    @Override
    public int hashCode() {
      return x;
    }

    @Override
    public boolean equals(Object obj) {
      if (this == obj)
        return true;
      if (obj == null)
        return false;
      if (getClass() != obj.getClass())
        return false;
      final RefSerializable other = (RefSerializable) obj;
      if (x != other.x)
        return false;
      return true;
    }
  }
}