public void ManageOneToManyRelation()
{
var firstCar = new CarEntity("1st Car");
var secondCar = new CarEntity("2nd Car");
var thirdCar = new CarEntity("3d Car");
var originalGarage = new GarageEntity("Original garage");
this.AssertUnbound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
originalGarage.AddCar(firstCar);
this.AssertBound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
originalGarage.AddCar(secondCar);
this.AssertBound(originalGarage, firstCar);
this.AssertBound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
originalGarage.AddCar(thirdCar);
this.AssertBound(originalGarage, firstCar);
this.AssertBound(originalGarage, secondCar);
this.AssertBound(originalGarage, thirdCar);
originalGarage.RemoveCar(firstCar);
this.AssertUnbound(originalGarage, firstCar);
this.AssertBound(originalGarage, secondCar);
this.AssertBound(originalGarage, thirdCar);
originalGarage.RemoveCar(secondCar);
this.AssertUnbound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertBound(originalGarage, thirdCar);
originalGarage.RemoveCar(thirdCar);
this.AssertUnbound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
firstCar.Garage = originalGarage;
this.AssertBound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
secondCar.Garage = originalGarage;
this.AssertBound(originalGarage, firstCar);
this.AssertBound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
thirdCar.Garage = originalGarage;
this.AssertBound(originalGarage, firstCar);
this.AssertBound(originalGarage, secondCar);
this.AssertBound(originalGarage, thirdCar);
var anotherGarage = new GarageEntity("Another garage");
firstCar.Garage = anotherGarage;
this.AssertUnbound(originalGarage, firstCar);
this.AssertBound(originalGarage, secondCar);
this.AssertBound(originalGarage, thirdCar);
this.AssertBound(anotherGarage, firstCar);
this.AssertUnbound(anotherGarage, secondCar);
this.AssertUnbound(anotherGarage, thirdCar);
secondCar.Garage = anotherGarage;
this.AssertUnbound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertBound(originalGarage, thirdCar);
this.AssertBound(anotherGarage, firstCar);
this.AssertBound(anotherGarage, secondCar);
this.AssertUnbound(anotherGarage, thirdCar);
thirdCar.Garage = anotherGarage;
this.AssertUnbound(originalGarage, firstCar);
this.AssertUnbound(originalGarage, secondCar);
this.AssertUnbound(originalGarage, thirdCar);
this.AssertBound(anotherGarage, firstCar);
this.AssertBound(anotherGarage, secondCar);
this.AssertBound(anotherGarage, thirdCar);
}
private void AssertUnbound(GarageEntity garage, CarEntity car)
{
Assert.NotEqual(garage, car.Garage);
Assert.False(garage.HasCar(car));
}
private void AssertBound(GarageEntity garage, CarEntity car)
{
Assert.Equal(garage, car.Garage);
Assert.True(garage.HasCar(car));
}
private void AssertUnbound(PersonEntity person, CarEntity car)
{
Assert.NotEqual(person, car.Driver);
Assert.NotEqual(person.Car, car);
}
public void ManageOneToOneRelation()
{
var person = new PersonEntity("A person");
var originalCar = new CarEntity("Original Car");
Assert.Null(person.Car);
Assert.Null(originalCar.Driver);
person.Car = originalCar;
this.AssertBound(person, originalCar);
originalCar.Driver = null;
Assert.Null(originalCar.Driver);
Assert.Null(person.Car);
this.AssertUnbound(person, originalCar);
originalCar.Driver = person;
this.AssertBound(person, originalCar);
var newCar = new CarEntity("New Car");
person.Car = newCar;
this.AssertBound(person, newCar);
this.AssertUnbound(person, originalCar);
}
