internal void DomainCollectionTests(Messenger m, IKeyed <int, PersonDO> collection)
{
GIVEN["a collection and a Messenger"] = () =>
collection = collection.Create(m = CreateMesseneger(), x => x.ID, x => {
x.Apply <PersonAdded>((e, c) => c.Add(e));
x.Apply <PersonChanged>((e, c) => c.Set(e.ID, e));
x.Apply <PersonRemoved>((e, c) => c.Remove(e.ID));
});
WHEN["sending an add event"] = () => m.ApplyChange(new PersonAdded {
ID = 1, Name = "N1"
});
THEN["the item is added"] = () => collection.Should().BeEquivalentTo(new PersonDO {
ID = 1, Name = "N1"
});
WHEN["sending a set event"] = () => m.ApplyChange(new PersonChanged {
ID = 1, Name = "N2"
});
THEN["the item is replaced"] = () => collection.Should().BeEquivalentTo(new PersonDO {
ID = 1, Name = "N2"
});
WHEN["sending a remove event"] = () => m.ApplyChange(new PersonRemoved {
ID = 1
});
THEN["the item is added"] = () => collection.Should().BeEquivalentTo();
}