public void GetFirst_OneValueAppended_ReturnsThatValue(int value)
{
IMyList list = CreateSUT();
list.Append(value);
Assert.Equal(value, list.GetFirst());
}
public int GetGoldenTarget(IMyList targetPoints)
{
if (targetPoints.Count < 2)
{
throw new ArgumentException("points.Count < 2", nameof(targetPoints));
}
return((targetPoints.GetFirst() + targetPoints.ElementAt(targetPoints.Count - 1)) / 2);
}