public void IteratorTest()
{
// The client code may or may not know about the Concrete Iterator
// or Collection classes, depending on the level of indirection you
// want to keep in your program.
var collection = new WordsCollection();
collection.AddItem("First");
collection.AddItem("Second");
collection.AddItem("Third");
collection.Should().Equal(new List <string> {
"First", "Second", "Third"
});
collection.ReverseDirection();
collection.Should().Equal(new List <string> {
"Third", "Second", "First"
});
}
