Bowling Game: State Machine: Step 4

Here’s the second test that checks that rolling 20 ones in a row gives a score of 20:

TEST_METHOD(AllOnesMeansScoreIs20)
{
    for(int i=0;i<20; ++i)
        game.Roll(1);
    Assert::AreEqual(20, game.Score());
}

We can fail this test in my favorite way: by doing nothing. It fails with Assert failed. Expected:<20> Actual:<0>.

Next, write just enough code to pass both of these test, and click Next