public void testSetBufferSize() {
    LineCountSplitter s = new LineCountSplitter();
    assertNull(s.getBufferSize());
    assertEquals(8192, s.bufferSize());

    s.setBufferSize(1024);
    assertEquals(Integer.valueOf(1024), s.getBufferSize());
    assertEquals(1024, s.bufferSize());

    s.setBufferSize(null);
    assertNull(s.getBufferSize());
    assertEquals(8192, s.bufferSize());
  }