@Test
public void createWithRequiredValueMissing() {
UserTO userTO = getSampleTO("a.b@c.it");
AttributeTO type = getManadatoryAttrByName(userTO.getAttributes(), "type");
userTO.removeAttribute(type);
MembershipTO membershipTO = new MembershipTO();
membershipTO.setRoleId(8L);
userTO.addMembership(membershipTO);