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.kafka.common.protocol.types;
  
  import org.apache.kafka.common.protocol.ByteBufferAccessor;
  
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  import java.nio.ByteBuffer;
  import java.util.Arrays;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertArrayEquals;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.fail;
  
  @Timeout(120)
  public class RawTaggedFieldWriterTest {
  
      @Test
      public void testWritingZeroRawTaggedFields() {
          RawTaggedFieldWriter writer = RawTaggedFieldWriter.forFields(null);
          assertEquals(0, writer.numFields());
          ByteBufferAccessor accessor = new ByteBufferAccessor(ByteBuffer.allocate(0));
          writer.writeRawTags(accessor, Integer.MAX_VALUE);
      }
  
      @Test
      public void testWritingSeveralRawTaggedFields() {
          List<RawTaggedField> tags = Arrays.asList(
              new RawTaggedField(2, new byte[] {0x1, 0x2, 0x3}),
              new RawTaggedField(5, new byte[] {0x4, 0x5})
          );
          RawTaggedFieldWriter writer = RawTaggedFieldWriter.forFields(tags);
          assertEquals(2, writer.numFields());
          byte[] arr = new byte[9];
          ByteBufferAccessor accessor = new ByteBufferAccessor(ByteBuffer.wrap(arr));
          writer.writeRawTags(accessor, 1);
          assertArrayEquals(new byte[] {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, arr);
          writer.writeRawTags(accessor, 3);
          assertArrayEquals(new byte[] {0x2, 0x3, 0x1, 0x2, 0x3, 0x0, 0x0, 0x0, 0x0}, arr);
          writer.writeRawTags(accessor, 7);
          assertArrayEquals(new byte[] {0x2, 0x3, 0x1, 0x2, 0x3, 0x5, 0x2, 0x4, 0x5}, arr);
          writer.writeRawTags(accessor, Integer.MAX_VALUE);
          assertArrayEquals(new byte[] {0x2, 0x3, 0x1, 0x2, 0x3, 0x5, 0x2, 0x4, 0x5}, arr);
      }
  
      @Test
      public void testInvalidNextDefinedTag() {
          List<RawTaggedField> tags = Arrays.asList(
              new RawTaggedField(2, new byte[] {0x1, 0x2, 0x3}),
              new RawTaggedField(5, new byte[] {0x4, 0x5, 0x6}),
              new RawTaggedField(7, new byte[] {0x0})
          );
          RawTaggedFieldWriter writer = RawTaggedFieldWriter.forFields(tags);
          assertEquals(3, writer.numFields());
          try {
              writer.writeRawTags(new ByteBufferAccessor(ByteBuffer.allocate(1024)), 2);
              fail("expected to get RuntimeException");
          } catch (RuntimeException e) {
              assertEquals("Attempted to use tag 2 as an undefined tag.", e.getMessage());
          }
      }
  
      @Test
      public void testOutOfOrderTags() {
          List<RawTaggedField> tags = Arrays.asList(
              new RawTaggedField(5, new byte[] {0x4, 0x5, 0x6}),
              new RawTaggedField(2, new byte[] {0x1, 0x2, 0x3}),
              new RawTaggedField(7, new byte[] {0x0 })
          );
          RawTaggedFieldWriter writer = RawTaggedFieldWriter.forFields(tags);
          assertEquals(3, writer.numFields());
          try {
              writer.writeRawTags(new ByteBufferAccessor(ByteBuffer.allocate(1024)), 8);
              fail("expected to get RuntimeException");
          } catch (RuntimeException e) {
              assertEquals("Invalid raw tag field list: tag 2 comes after tag 5, but is " +
                  "not higher than it.", e.getMessage());
          }
      }
  }
  