public void CreateWithNullMetadata()
{
Cons cons = new Cons(1, new Cons(2));
IObject iobj = cons.WithMetadata(null);
Assert.IsNotNull(iobj);
Assert.IsInstanceOfType(iobj, typeof(Cons));
Assert.IsTrue(iobj == cons);
}
public void CreateWithMetadata()
{
Cons cons = new Cons(1, new Cons(2));
IObject iobj = cons.WithMetadata(FakePersistentMap.Instance);
Assert.IsNotNull(iobj);
Assert.IsInstanceOfType(iobj, typeof(Cons));
Assert.IsTrue(iobj != cons);
Assert.IsTrue(FakePersistentMap.Instance == iobj.Metadata);
Assert.AreEqual(2, cons.Count);
Assert.AreEqual(1, cons.First());
Assert.AreEqual(2, cons.Next().First());
Assert.IsNull(cons.Next().Next());
}