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
   *
   *     https://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.avro.hadoop.io;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  
  import org.apache.avro.Schema;
  import org.apache.avro.io.DatumReader;
  import org.apache.avro.io.Decoder;
  import org.apache.avro.io.DecoderFactory;
  import org.apache.avro.generic.GenericDatumReader;
  import org.apache.avro.mapred.AvroKey;
  import org.junit.jupiter.api.Test;
  
  public class TestAvroSerializer {
    @Test
    void serialize() throws IOException {
      // Create a serializer.
      Schema writerSchema = Schema.create(Schema.Type.STRING);
      AvroSerializer<CharSequence> serializer = new AvroSerializer<>(writerSchema);
  
      // Check the writer schema.
      assertEquals(writerSchema, serializer.getWriterSchema());
  
      // Serialize two records, 'record1' and 'record2'.
      ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
      serializer.open(outputStream);
      serializer.serialize(new AvroKey<>("record1"));
      serializer.serialize(new AvroKey<>("record2"));
      serializer.close();
  
      // Make sure the records were serialized correctly.
      ByteArrayInputStream inputStream = new ByteArrayInputStream(outputStream.toByteArray());
      Schema readerSchema = Schema.create(Schema.Type.STRING);
      DatumReader<CharSequence> datumReader = new GenericDatumReader<>(readerSchema);
      Decoder decoder = DecoderFactory.get().binaryDecoder(inputStream, null);
      CharSequence record = null;
  
      record = datumReader.read(record, decoder);
      assertEquals("record1", record.toString());
  
      record = datumReader.read(record, decoder);
      assertEquals("record2", record.toString());
  
      inputStream.close();
    }
  }
  