int length = 0x12345678;
            SrvCopychunk chunk = new SrvCopychunk(sourceOffset, targetOffset, length);
            byte[] buffer = new byte[EXPECTED_SIZE];

            // When
            int bytesWritten = chunk.encode(buffer, 0);

            // Then
            assertEquals(EXPECTED_SIZE, bytesWritten);
            assertEquals(chunk.size(), bytesWritten);

            // Verify complete structure

              }
            });

    for (int chunk : CHUNK_SIZES) {
      chunk = max(1, min(chunk, input.length()));
      assertEquals(expectProcess, bufferHelper(input, chunk));
      assertEquals(expectRead, readUsingJava(input, chunk));
      assertEquals(expectRead, readUsingReader(input, chunk, true));
      assertEquals(expectRead, readUsingReader(input, chunk, false));
    }
  }

              }
            });

    for (int chunk : CHUNK_SIZES) {
      chunk = max(1, min(chunk, input.length()));
      assertEquals(expectProcess, bufferHelper(input, chunk));
      assertEquals(expectRead, readUsingJava(input, chunk));
      assertEquals(expectRead, readUsingReader(input, chunk, true));
      assertEquals(expectRead, readUsingReader(input, chunk, false));
    }
  }

		},
		// Test - 2 no chunk extension, return same buffer.
		{
			[]byte("10000;"),
			[]byte("10000;"),
			nil,
		},
		// Test - 3 no chunk size, return error.
		{
			[]byte(";chunk-signature="),
			nil,
			nil,
		},
		// Test - 4 removes trailing slash.
		{

        }

        @Test
        @DisplayName("Should return correct size with single chunk")
        void testSizeWithSingleChunk() {
            // Given
            byte[] sourceKey = new byte[SOURCE_KEY_SIZE];
            SrvCopychunk chunk = new SrvCopychunk(0, 0, 0);
            SrvCopychunkCopy copy = new SrvCopychunkCopy(sourceKey, chunk);

            // When
            int size = copy.size();

            // Then

// lineTooLong is generated as chunk header is bigger than 4KiB.
var errLineTooLong = errors.New("header line too long")

// malformed encoding is generated when chunk header is wrongly formed.
var errMalformedEncoding = errors.New("malformed chunked encoding")

// chunk is considered too big if its bigger than > 16MiB.
var errChunkTooBig = errors.New("chunk too big: choose chunk size <= 16MiB")

    this.bufferSize = bufferSize;
    this.chunkSize = chunkSize;
  }

  /** Processes the available bytes of the buffer (at most {@code chunk} bytes). */
  protected abstract void process(ByteBuffer bb);

  /**
   * This is invoked for the last bytes of the input, which are not enough to fill a whole chunk.
   * The passed {@code ByteBuffer} is guaranteed to be non-empty.
   *

      if (closed) return
      closed = true
      detachTimeout(timeout)
      state = STATE_READ_RESPONSE_HEADERS
    }
  }

  /**
   * An HTTP body with alternating chunk sizes and chunk bodies. It is the caller's responsibility
   * to buffer chunks; typically by using a buffered sink with this sink.
   */
  private inner class ChunkedSink : Sink {

 * copy operations with multiple chunk specifications.
 *
 * @author mbechler
 *
 */
public class SrvCopychunkCopy implements Encodable {

    private final byte[] sourceKey;
    private final SrvCopychunk[] chunks;

    /**
     * Constructs a server copy chunk operation request
     * @param sourceKey the resume key identifying the source file

	if err == io.EOF && size != 0 {
		err = io.ErrUnexpectedEOF
	}
	if err != nil && err != io.EOF {
		cr.err = err
		return n, cr.err
	}

	// If the chunk size is zero we return io.EOF. As specified by AWS,
	// only the last chunk is zero-sized.
	if len(cr.buffer) == 0 {
		if cr.debug {
			fmt.Println("EOF")
		}
		if cr.trailers != nil {
			err = cr.readTrailers()
			if cr.debug {