public void ItIteratesThroughtCollection()
{
var collection = new EnemyCollection
{
[0] = new EasyEnemy(),
[1] = new MediumEnemy(),
[2] = new HardEnemy()
};
var iterator = collection.CreateIterator();
var total = 0;
for (var enemy = iterator.First(); !iterator.Done(); enemy = iterator.Next())
{
total++;
}
Assert.IsType<EnemyCollection>(collection);
Assert.Equal(3, total);
}