admin.addRole("role4", null, null);
admin.addUser("saman", "pass1", null, null, null, false);
admin.addUser("amara", "pass2", null, null, null, false);
admin.addUser("sunil", "pass3", null, null, null, false);
admin.updateRoleListOfUser("saman", null, new String[] { "role2" });
admin.updateRoleListOfUser("saman", new String[] { "role2" }, new String[] { "role4",
"role3" });
String[] rolesOfSaman = admin.getRoleListOfUser("saman");
assertEquals(3, rolesOfSaman.length);