public void ChangeOwnerOfPossession_ChangesReflectedInGetOwnerOfPossession()
{
var possession = new TestPossession();
var ownerOne = new TestOwner();
var ownerTwo = new TestOwner();
var relationship = new PossessionRelationship <TestOwner, TestPossession>();
relationship.ChangeOwnerOfPossession(possession, ownerOne);
Assert.AreEqual(ownerOne, relationship.GetOwnerOfPossession(possession),
"GetOwnerOfPossession returned an unexpected value");
relationship.ChangeOwnerOfPossession(possession, ownerTwo);
Assert.AreEqual(ownerTwo, relationship.GetOwnerOfPossession(possession),
"GetOwnerOfPossession returned an unexpected value");
relationship.ChangeOwnerOfPossession(possession, null);
Assert.AreEqual(null, relationship.GetOwnerOfPossession(possession),
"GetOwnerOfPossession returned an unexpected value");
}
public void AllMethods_ThrowOnNullPossessionArgument()
{
var owner = new TestOwner();
var relationship = new PossessionRelationship <TestOwner, TestPossession>();
Assert.Throws <ArgumentNullException>(() => relationship.GetOwnerOfPossession(null),
"GetOwnerOfPossession did not throw correctly");
Assert.Throws <ArgumentNullException>(() => relationship.CanChangeOwnerOfPossession(null, owner),
"CanChangeOwnerOfPossession did not throw correctly");
Assert.Throws <ArgumentNullException>(() => relationship.ChangeOwnerOfPossession(null, owner),
"ChangeOwnerOfPossession did not throw correctly");
}
