public void HeadTest()
{
const string data = "How now, brown cow?";
var list = data.Split().Aggregate(BinaryRandomAccessList <string> .Empty, (current, word) => BinaryRandomAccessList <string> .Cons(word, current));
Assert.AreEqual("cow?", BinaryRandomAccessList <string> .Head(list));
list = BinaryRandomAccessList <string> .Update(0, "dog?", list);
Assert.AreEqual("dog?", BinaryRandomAccessList <string> .Head(list));
}
public void EmptyHeadTest()
{
var list = BinaryRandomAccessList <string> .Empty;
AssertThrows <ArgumentNullException>(() => BinaryRandomAccessList <string> .Head(list));
}