func (kvs KVS) MarshalJSON() ([]byte, error) {
	b := new(bytes.Buffer)
	b.Write([]byte("{"))
	for i, kv := range kvs {
		b.Write([]byte("\"" + kv.Key + "\"" + ":"))
		valBuf, err := json.Marshal(kv.Value)
		if err != nil {
			return nil, err
		}
		b.Write(valBuf)
		if i < len(kvs)-1 {
			b.Write([]byte(","))
		}
	}
	b.Write([]byte("}"))
	return b.Bytes(), nil
}

  }

  @Override public void onMessage(WebSocket webSocket, String text) {
    System.out.println("MESSAGE: " + text);
  }

  @Override public void onMessage(WebSocket webSocket, ByteString bytes) {
    System.out.println("MESSAGE: " + bytes.hex());
  }

  @Override public void onClosing(WebSocket webSocket, int code, String reason) {
    webSocket.close(1000, null);
    System.out.println("CLOSE: " + code + " " + reason);
  }

    void testReadULong() {
        byte[] a = new byte[] { (byte) 0x01, (byte) 0x02, (byte) 0x03, (byte) 0x04 };
        int result = NtlmMessage.readULong(a, 0);
        assertEquals(0x04030201, result, "ULong should be little‑endian");
    }

    @Test
    @DisplayName("readUShort correctly interprets little endian")
    void testReadUShort() {
        byte[] a = new byte[] { (byte) 0xAA, (byte) 0xBB };

    return asByteSource(url).asCharSource(charset);
  }

  /**
   * Reads all bytes from a URL into a byte array.
   *
   * @param url the URL to read from
   * @return a byte array containing all the bytes from the URL
   * @throws IOException if an I/O error occurs
   */
  public static byte[] toByteArray(URL url) throws IOException {
    return asByteSource(url).read();
  }

  /**

        fileInputStream.reset();
    }

    /**
     * Skips over and discards {@code n} bytes of data from this input stream.
     * This method delegates to {@link FileInputStream#skip(long)}.
     *
     * @param n the number of bytes to be skipped
     * @return the actual number of bytes skipped
     * @throws IOException if an I/O error occurs.
     */
    @Override

  /**
   * Peeks up to [byteCount] bytes from the response body and returns them as a new response
   * body. If fewer than [byteCount] bytes are in the response body, the full response body is
   * returned. If more than [byteCount] bytes are in the response body, the returned value
   * will be truncated to [byteCount] bytes.
   *
   * It is an error to call this method after the body has been consumed.

            request.setPadding((byte) 4);
            request.setReadFlags((byte) 0x02);

            // Update file ID
            byte[] newFileId = new byte[16];
            Arrays.fill(newFileId, (byte) 0xEF);
            request.setFileId(newFileId);

            // Write and verify
            byte[] buffer = new byte[256];

  }

  public void testMap_readWrite() throws IOException {
    // Test data
    int size = 1024;
    byte[] expectedBytes = new byte[size];
    byte[] bytes = newPreFilledByteArray(1024);

    // Setup
    File file = createTempFile();
    Files.write(bytes, file);

    Random random = new Random();
    random.nextBytes(expectedBytes);

    // Test

            byte[] testBuffer = new byte[8];
            ByteBuffer bb = ByteBuffer.wrap(testBuffer).order(ByteOrder.LITTLE_ENDIAN);
            bb.putShort((short) 0); // pathConsumed (will be divided by 2)
            bb.putShort((short) 0); // numReferrals
            bb.putShort((short) 0); // tflags
            bb.putShort((short) 0); // tflags high bytes (skipped in decode)

	c.Assert(response.ContentLength, int64(len([]byte("hello world"))))
	var buffer2 bytes.Buffer
	// retrieve the contents of response body.
	n, err := io.Copy(&buffer2, response.Body)
	c.Assert(err, nil)
	c.Assert(n, int64(len([]byte("hello world"))))
	// asserted the contents of the fetched object with the expected result.
	c.Assert(true, bytes.Equal(buffer2.Bytes(), []byte("hello world")))