public void DeleteCarValidationTest(int?id)
{
//Arrange
var mockUow = new Mock <IUnitOfWork>();
mockUow.Setup(a => a.Cars.Get(-1)).Returns((Car)null);
//Act
var service = new RentService(mockUow.Object);
//Assert
Assert.Throws <ValidationException>(
() =>
service.DeleteCar(id));
}
