Donovan Albanesi is a second-generation Objectivist. His website and blog serve several functions, among them, these self-tests.

They are not intended as open book because all of the questions come verbatim from the books.

From the "Virtue of Selfishness" Test 03:
1) To compromise is fundamentally wrong, even in regard to concretes or particulars which are based upon a mutually accepted basic principle between two or more willing parties. [p.79]
True
False

I find the tests helpful based on the assumption that you remember what you understand better than you remember what you do not understand. So, if you have read The Virtue of Selfishness or Ominous Parallels these quizzes will help you measure what you grasped.