void test_change_bowler()
        {
            int bowlerId = _keeper.ChangeBowler("Michael Holding");

            var(balls, maidens, runs, wickets) = _keeper.GetBowlerStats(0, "Michael Holding");
            Assert.Equal(0, balls);
            Assert.Equal(0, maidens);
            Assert.Equal(0, runs);
            Assert.Equal(0, wickets);
        }