### Question:
SwappedDataInputStream extends ProxyInputStream implements DataInput { public int readUnsignedByte() throws IOException, EOFException { return in.read(); } SwappedDataInputStream( final InputStream input ); boolean readBoolean(); byte readByte(); char readChar(); double readDouble(); float readFloat(); void readFully( final byte[] data ); void readFully( final byte[] data, final int offset, final int length ); int readInt(); String readLine(); long readLong(); short readShort(); int readUnsignedByte(); int readUnsignedShort(); String readUTF(); int skipBytes( final int count );  }### Answer:
@Test public void testReadUnsignedByte() throws IOException { assertEquals( 0x01, this.sdis.readUnsignedByte() ); }