String expResult = "success";
String result = instance.buttonValidateBottom_action();
assertEquals(expResult, result);
//check the insertion of the entities
DonationController donationCtrl = new DonationController();
donation = donationCtrl.read(id);
assertEquals(donation.getIdDonation(), id);
assertEquals(donation.getDonor(), contact);
assertEquals(donation.getDonor().getIdContact(), id);
assertEquals(donation.getDonor().getFirstName(), this.getName());
ContactController contactCtrl = new ContactController();