[plt-scheme] HTDP Extended Exercise: Interactive Games

On Tue, 9 Mar 2004, Matthias Felleisen wrote:
>
> Enjoy the game now, and oh, don't forget to supplement the functions
> with tests. The 206p1 version of drscheme has a nice test menu. You can
> add visual test boxes that make it absolutely, totally clear what tests
> are. And once you don't want them anymore, you can turn them off in one
> click. All built in.

Is there documentation for these tools somewhere?  They don't seem to show
up in Help Desk.

--Carl