@Test
public void testFilterDefaultAclEntriesUnchanged() throws AclException {

  List<AclEntry> existing = new ImmutableList.Builder<AclEntry>()
    .add(aclEntry(ACCESS, USER, ALL))
    .add(aclEntry(ACCESS, USER, "bruce", ALL))
    .add(aclEntry(ACCESS, GROUP, READ_EXECUTE))
    .add(aclEntry(ACCESS, GROUP, "sales", ALL))
    .add(aclEntry(ACCESS, MASK, ALL))
    .add(aclEntry(ACCESS, OTHER, NONE))
    .build();
  assertEquals(existing, filterDefaultAclEntries(existing));
}