public void Spare()
        {
            RegularFrame myFrame = new RegularFrame(10);

            myFrame.AddBallScore(4);
            myFrame.AddBallScore(6, spare: true);
            Assert.IsTrue(myFrame.IsSpare);
        }
        public void Add_Rolls_To_Existing_Frame()
        {
            RegularFrame myFrame = new RegularFrame(1);

            myFrame.AddBallScore(5);
            myFrame.AddBallScore(5);
            Assert.AreEqual(10, myFrame.GetScore());
        }
        public void Add_Bonus_Points_To_Spare()
        {
            RegularFrame myFrame = new RegularFrame(10);

            myFrame.AddBallScore(5);
            myFrame.AddBallScore(5, spare: true);
            myFrame.AddBonusPoints(6);
            Assert.AreEqual(16, myFrame.GetScore());
        }
        public void Strike()
        {
            RegularFrame myFrame = new RegularFrame(10);

            myFrame.AddBallScore(10, strike: true);
            Assert.IsTrue(myFrame.IsStrike);
        }
        public void Add_Bonus_Points_To_Strike()
        {
            RegularFrame myFrame = new RegularFrame(10);

            myFrame.AddBallScore(10, strike: true);
            myFrame.AddBonusPoints(10);
            Assert.AreEqual(20, myFrame.GetScore());
        }