userTO.addAttribute(attributeTO(schemaTO.getName(), "1"));
userTO = createUser(userTO);
assertNotNull(userTO);
UserTO newUserTO = AttributableOperations.clone(userTO);
MembershipTO membership = new MembershipTO();
membership.setRoleId(2L);
newUserTO.addMembership(membership);
UserMod userMod = AttributableOperations.diff(newUserTO, userTO);
userTO = userService.update(userMod.getId(), userMod);