public void FailOnDeleteInEmptyList()
{
var sut = new OneWayList <int>();
// Assert
Assert.Throws <InvalidOperationException>(() => sut.DeleteFirst());
Assert.Throws <InvalidOperationException>(() => sut.DeleteLast());
}
public void DeleteFirstInList()
{
var sut = new OneWayList <int>(iarray);
var first = iarray[0];
sut.DeleteFirst();
// Assert
Assert.AreNotEqual(first, sut.Head.Value);
Assert.AreEqual(iarray.Length - 1, sut.Count);
}