public void Test()
{
IAggregate target = new Aggregate();
target.Add("A");
target.Add("B");
IIterator iterator = target.CreaetIterator();
Assert.AreEqual("A", iterator.Next());
Assert.AreEqual("B", iterator.Next());
try
{
iterator.Next();
}
catch (Exception exception)
{
Assert.IsTrue(exception is IndexOutOfRangeException);
}
}