public void CanChangeOwnerOfPossession_FalseIfAlreadyOwnedBy()
{
var possession = new TestPossession();
var owner = new TestOwner();
var relationship = new PossessionRelationship <TestOwner, TestPossession>();
Assert.IsFalse(relationship.CanChangeOwnerOfPossession(possession, null),
"CanChangeOwnerOfPossession returned an unexpected value");
relationship.ChangeOwnerOfPossession(possession, owner);
Assert.IsFalse(relationship.CanChangeOwnerOfPossession(possession, owner),
"CanChangeOwnerOfPossession 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");
}
