* except using little-endian byte order.
   *
   * @return the next two bytes of the input stream, interpreted as an unsigned 16-bit integer in
   *     little-endian byte order
   * @throws IOException if an I/O error occurs
   */
  @CanIgnoreReturnValue // to skip some bytes
  @Override
  public int readUnsignedShort() throws IOException {

  }

  public void testReadUnsignedShort_eof() throws IOException {
    byte[] buf = {23};
    DataInput in = new LittleEndianDataInputStream(new ByteArrayInputStream(buf));
    assertThrows(EOFException.class, in::readUnsignedShort);
  }

  @SuppressWarnings("DoNotCall")
  public void testReadLine() throws IOException {
    DataInput in = new LittleEndianDataInputStream(new ByteArrayInputStream(data));

  @Override
  int readUnsignedByte();

  @CanIgnoreReturnValue // to skip some bytes
  @Override
  short readShort();

  @CanIgnoreReturnValue // to skip some bytes
  @Override
  int readUnsignedShort();

  @CanIgnoreReturnValue // to skip some bytes
  @Override
  char readChar();

  @CanIgnoreReturnValue // to skip some bytes
  @Override
  int readInt();

    }

    /**
     * Reads an unsigned 16-bit short value.
     * @return the unsigned short value as an integer
     * @throws IOException if an I/O error occurs
     */
    public int readUnsignedShort() throws IOException {
        return readShort() & 0xffff;
    }

    /**
     * Reads a Windows FILETIME value and converts it to a Date.

        // Little-endian 0xFFFF -> 0xFF 0xFF
        byte[] data = new byte[] { (byte) 0xFF, (byte) 0xFF, 0x00, 0x00 };
        PacDataInputStream pdis = createInputStream(data);
        assertEquals(0xFFFF, pdis.readUnsignedShort());
    }

    @Test
    public void testReadUnsignedInt() throws IOException {
        // Little-endian 0xFFFFFFFF -> 0xFF 0xFF 0xFF 0xFF

    assertEquals(-100, in.readByte());
    assertEquals(200, in.readUnsignedByte());
    assertEquals('\u6100', in.readChar());
    assertEquals(-12150, in.readShort());
    assertEquals(20675, in.readUnsignedShort());
    assertEquals(0xBEBAFECA, in.readInt());
    assertEquals(0xBEBAFECAEFBEADDEL, in.readLong());
    assertThat(in.readUTF()).isEqualTo("Herby Derby");
    assertEquals(0xBEBAFECA, Float.floatToIntBits(in.readFloat()));

    assertEquals(-100, in.readByte());
    assertEquals(200, in.readUnsignedByte());
    assertEquals('\u6100', in.readChar());
    assertEquals(-12150, in.readShort());
    assertEquals(20675, in.readUnsignedShort());
    assertEquals(0xBEBAFECA, in.readInt());
    assertEquals(0xBEBAFECAEFBEADDEL, in.readLong());
    assertThat(in.readUTF()).isEqualTo("Herby Derby");
    assertEquals(0xBEBAFECA, Float.floatToIntBits(in.readFloat()));