public void OrderAndDuplicates()
{
var c = new MostRecentlyUsedCollection <string> {
"a", "b", "c"
};
c.SequenceShouldEqual(new [] { "c", "b", "a" });
c.Add("b");
c.SequenceShouldEqual(new [] { "b", "c", "a" });
c.Add("b");
c.SequenceShouldEqual(new [] { "b", "c", "a" });
}
public void Load()
{
var items = new [] { "a", "b", "c", "d" };
var c = new MostRecentlyUsedCollection <string> ();
c.Load(items);
c.SequenceShouldEqual(items);
}
public void Validation()
{
var validItems = new [] { "a", "b", "c" };
var c = new MostRecentlyUsedCollection <string> (
itemValidationDelegate: i => validItems.Contains(i));
c.Load(new [] { "a", "b", "c", "d" });
c.SequenceShouldEqual(validItems);
c.Clear();
c.Count.ShouldEqual(0);
c.Add("d");
c.Count.ShouldEqual(0);
// ensure even if we make no inserts, we still validate the rest
c.Load(new [] { "a", "b", "c", "d" });
validItems = new [] { "a" };
c.Add("a");
c.SequenceShouldEqual(new [] { "a" });
}