@Override
  public String toString() {
    return toString(false);
  }
@Test
  public void testToStringWithQuota() {
    long fileAndDirCount = 55555;
    long quota = 44444;
    long spaceConsumed = 55555;
    long spaceQuota = 66665;

    QuotaUsage quotaUsage = new QuotaUsage.Builder().
        fileAndDirectoryCount(fileAndDirCount).quota(quota).
        spaceConsumed(spaceConsumed).spaceQuota(spaceQuota).build();
    String expected ="       44444          -11111           66665" +
        "           11110 ";
    assertEquals(expected, quotaUsage.toString());
  }