public void ChangeOwnerOfPossession_ChangesReflectedInGetPossessionsOfOwner()
{
var possession = new TestPossession();
var ownerOne = new TestOwner();
var ownerTwo = new TestOwner();
var relationship = new PossessionRelationship <TestOwner, TestPossession>();
relationship.ChangeOwnerOfPossession(possession, ownerOne);
CollectionAssert.Contains(relationship.GetPossessionsOfOwner(ownerOne), possession,
"OwnerOne does not have the possession");
relationship.ChangeOwnerOfPossession(possession, ownerTwo);
CollectionAssert.DoesNotContain(relationship.GetPossessionsOfOwner(ownerOne), possession,
"OwnerOne incorrectly has the possession");
CollectionAssert.Contains(relationship.GetPossessionsOfOwner(ownerTwo), possession,
"OwnerTwo does not have the possession");
relationship.ChangeOwnerOfPossession(possession, null);
CollectionAssert.DoesNotContain(relationship.GetPossessionsOfOwner(ownerTwo), possession,
"OwnerTwo falsely has the possession");
}
public void GetPossessionsOfOwner_ThrowsOnNullArgument()
{
var relationship = new PossessionRelationship <TestOwner, TestPossession>();
Assert.Throws <ArgumentNullException>(() => relationship.GetPossessionsOfOwner(null),
"GetPossessionOfOwner did not throw correctly");
}
public void ChangeOwnerOfPossession_ThrowsIfNotPermitted()
{
var possession = new TestPossession();
var relationship = new PossessionRelationship <TestOwner, TestPossession>();
Assert.Throws <InvalidOperationException>(() => relationship.ChangeOwnerOfPossession(possession, null),
"ChangeOwnerOfPossession did not throw correctly on an invalid request");
}
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");
}
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 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");
}
