@Test
public void testWrite() throws IOException {

  long length = 11111;
  long fileCount = 22222;
  long directoryCount = 33333;
  long quota = 44444;
  long spaceConsumed = 55555;
  long spaceQuota = 66666;
  ContentSummary contentSummary = new ContentSummary.Builder().length(length).
      fileCount(fileCount).directoryCount(directoryCount).quota(quota).
      spaceConsumed(spaceConsumed).spaceQuota(spaceQuota).build();
  DataOutput out = mock(DataOutput.class);
  InOrder inOrder = inOrder(out);
  contentSummary.write(out);
  inOrder.verify(out).writeLong(length);
  inOrder.verify(out).writeLong(fileCount);
  inOrder.verify(out).writeLong(directoryCount);
  inOrder.verify(out).writeLong(quota);
  inOrder.verify(out).writeLong(spaceConsumed);
  inOrder.verify(out).writeLong(spaceQuota);
}