### Question:
StreamSource extends RandomAccessStream { @Override public int read() throws IOException { int read = input.read(); if (read != -1) fp++; return read; } StreamSource(SmbFile file, long l); void open(); @Override int read(); int read(byte[] bytes, int start, int offs); @Override void moveTo(long position); @Override void close(); String getMimeType(); String getName(); SmbFile getFile();  }### Answer:
@Test public void read() throws IOException { ss.open(); byte[] buff = new byte[10]; int n = ss.read(buff); byte[] temp = Arrays.copyOfRange(text, 0, buff.length); assertArrayEquals(temp, buff); assertEquals(buff.length, n); }