public void difficultyState_update_medium()
{
diffCtxt = new DifficultyContext(score);
score.ScoreVal += diffCtxt.MediumThreshold+10;
diffCtxt.update();
Assert.IsInstanceOfType(diffCtxt.getState(), typeof(MediumState));
}
public void difficultyState_update_easy()
{
diffCtxt = new DifficultyContext(score);
diffCtxt.update();
Assert.IsInstanceOfType(diffCtxt.getState(), typeof(EasyState));
}