gistfile1.cs

class When_there_are_100_bottles_of_beer_on_the_wall : BottlesOfBeerContext
{
    Establish there_are = () => 100.bottles_of_beer_on_the_wall();
    Because we = take_one_down_and_pass_it_around;
    It should_only_have_99_bottles_of_beer_on_the_wall = () => Bottles_of_beer_on_the_wall.ShouldEqual(99);
}

public static class BottlesOfBeerSetup
{
    public static void bottles_of_beer_on_the_wall(this int numBottlesOfBeer)
    {
        BottlesOfBeerContext.Bottles_of_beer_on_the_wall = numBottlesOfBeer;
    }
}

class BottlesOfBeerContext 
{
    public static int Bottles_of_beer_on_the_wall;
    public static void take_one_down_and_pass_it_around() { }
}