public void Test_GetDoctor_RetrievesAllDoctorsWithSpecialty() { Doctor firstDoctor = new Doctor("Dr. John", "Cardiology"); Doctor secondDoctor = new Doctor("Dr. Shruti", "Cardiology"); firstDoctor.Save(); secondDoctor.Save(); List <Doctor> doctorList = Doctor.GetDoctor("Cardiology"); List <Doctor> testList = new List <Doctor> { firstDoctor, secondDoctor }; Assert.Equal(doctorList, testList); }