There are some unit test libraries for SICP around http://web.mit.edu/~axch/www/test_manager.html http://web.mit.edu/~axch/www/test_manager.html There's also t

There are some unit test libraries for SICP around http://web.mit.edu/~axch/www/test_manager.html http://web.mit.edu/~axch/www/test_manager.html There's also the MIT online tutor for exercises http://icampustutor.csail.mit.edu/6.001-public/ http://icampustutor.csail.mit.edu/6.001-public/