public void Add_ShouldThrowArgumentException_IfCarIsNull()
{
// Arrange
Car car = null;
var db = new Database();
db.Cars = new List<Car>();
var count = db.Cars.Count;
var carsRepository = new CarsRepository(db);
// Act and Assert
Assert.Throws<ArgumentException>(() => carsRepository.Add(car), "Null car cannot be added");
}
public void Add_ShouldAddCarToCarRepository()
{
// Arrange
var car = new Car { Id = 1, Make = "Audi", Model = "A5", Year = 2005 };
var db = new Database();
db.Cars = new List<Car>();
var count = db.Cars.Count;
var carsRepository = new CarsRepository(db);
// Act
carsRepository.Add(car);
// Assert
Assert.AreEqual(1, db.Cars.Count);
}
public void Remove_ShouldremoveCarFromCarsRepository_WhenIsCalled()
{
// Arrange
var car = new Car { Id = 1, Make = "Audi", Model = "A5", Year = 2005 };
var db = new Database();
db.Cars = new List<Car>();
var carsRepository = new CarsRepository(db);
// Act
carsRepository.Add(car);
carsRepository.Remove(car);
// Assert
Assert.AreEqual(0, db.Cars.Count);
}