public void Patient_DeleteDoctors_DeletesAllOfPatientsDoctors() { Patient patient = new Patient("John", "john123", "123", new DateTime(1996, 04, 25)); patient.Save(); Doctor doctor1 = new Doctor("Tom", "tom567", "567", "Cardiology"); doctor1.Save(); Doctor doctor2 = new Doctor("John", "john567", "567", "Pediatrics"); doctor2.Save(); patient.AddDoctor(doctor1); patient.AddDoctor(doctor2); patient.DeleteDoctors(); List <Doctor> testList = patient.GetDoctors(); List <Doctor> controlList = new List <Doctor> { }; Assert.Equal(controlList, testList); }