public void GetBrand_ById() { //ARRANGE var options = new DbContextOptionsBuilder <FleetManagmentContext>() .UseInMemoryDatabase(databaseName: MethodBase.GetCurrentMethod().Name) .Options; using var context = new FleetManagmentContext(options); IInsuranceRepository insuranceRepository = new InsuranceRepository(context); InsuranceTO insurance = new InsuranceTO { Name = "AG", }; InsuranceTO insurance2 = new InsuranceTO { Name = "Ethias", }; //ACT var addedinsurance = insuranceRepository.Insert(insurance); var addedinsurance2 = insuranceRepository.Insert(insurance2); context.SaveChanges(); //ASSERT Assert.IsNotNull(addedinsurance); Assert.AreNotEqual(0, addedinsurance.Id); Assert.AreEqual("AG", addedinsurance.Name); Assert.AreEqual(1, insuranceRepository.GetByID(1).Id); }