public void ManageManyToManyRelation()
{
var firstAddress = new AddressEntity("1st address");
var secondAddress = new AddressEntity("2nd address");
var firstPerson = new PersonEntity("1st person");
var secondPerson = new PersonEntity("2nd person");
firstAddress.AddPerson(firstPerson);
this.AssertBound(firstPerson, firstAddress);
this.AssertUnbound(firstPerson, secondAddress);
this.AssertUnbound(secondPerson, firstAddress);
secondPerson.AddAddress(secondAddress);
this.AssertBound(secondPerson, secondAddress);
this.AssertUnbound(secondPerson, firstAddress);
this.AssertUnbound(firstPerson, secondAddress);
firstAddress.AddPerson(secondPerson);
this.AssertBound(firstPerson, firstAddress);
this.AssertUnbound(firstPerson, secondAddress);
this.AssertBound(secondPerson, firstAddress);
secondPerson.AddAddress(firstAddress);
this.AssertBound(firstPerson, firstAddress);
this.AssertUnbound(firstPerson, secondAddress);
this.AssertBound(secondPerson, firstAddress);
this.AssertBound(secondPerson, secondAddress);
secondAddress.AddPerson(firstPerson);
this.AssertBound(firstPerson, firstAddress);
this.AssertBound(firstPerson, secondAddress);
this.AssertBound(secondPerson, firstAddress);
this.AssertBound(secondPerson, secondAddress);
firstAddress.RemovePerson(firstPerson);
this.AssertUnbound(firstPerson, firstAddress);
this.AssertBound(firstPerson, secondAddress);
this.AssertBound(secondPerson, firstAddress);
this.AssertBound(secondPerson, secondAddress);
secondPerson.RemoveAddress(firstAddress);
this.AssertUnbound(firstPerson, firstAddress);
this.AssertBound(firstPerson, secondAddress);
this.AssertUnbound(secondPerson, firstAddress);
this.AssertBound(secondPerson, secondAddress);
firstPerson.RemoveAddress(secondAddress);
this.AssertUnbound(firstPerson, firstAddress);
this.AssertUnbound(firstPerson, secondAddress);
this.AssertUnbound(secondPerson, firstAddress);
this.AssertBound(secondPerson, secondAddress);
secondAddress.RemovePerson(secondPerson);
this.AssertUnbound(firstPerson, firstAddress);
this.AssertUnbound(firstPerson, secondAddress);
this.AssertUnbound(secondPerson, firstAddress);
this.AssertUnbound(secondPerson, secondAddress);
}
private void AssertUnbound(PersonEntity person, CarEntity car)
{
Assert.NotEqual(person, car.Driver);
Assert.NotEqual(person.Car, car);
}
private void AssertUnbound(PersonEntity person, AddressEntity address)
{
Assert.False(person.Addresses.Contains(address));
Assert.False(address.People.Contains(person));
}
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);
}