@Override
  public String toString() {
    return toString(true);
  }
@Test
  public void testToStringNoQuota() {
    long length = 11111;
    long fileCount = 22222;
    long directoryCount = 33333;

    ContentSummary contentSummary = new ContentSummary.Builder().length(length).
        fileCount(fileCount).directoryCount(directoryCount).build();
    String expected = "        none             inf            none"
        + "             inf        33333        22222              11111 ";
    assertEquals(expected, contentSummary.toString(true));
  }