@Test
 public void testGetUserSearchFilter() throws Exception {
   assertEquals(
       INCORRECT_USER_SEARCH_FILTER, "(uid={0})", ldapServerProperties.getUserSearchFilter());
   ldapServerProperties.setUsernameAttribute("anotherName");
   assertEquals(
       INCORRECT_USER_SEARCH_FILTER,
       "(anotherName={0})",
       ldapServerProperties.getUserSearchFilter());
 }