Bowling Game: Array of Ints: Step 18

That test is easy:

    TEST_METHOD(FrameSumTooLargeThrowsException)
    {
        Assert::ExpectException<std::out_of_range>([this] { RollMany(2, 6); }, L"when sum of rolls in a frame too large an std::out_of_range exception is thrown");
    }

Go ahead and fix the problem, and when you’ve done that, click Next