The testing of this issue requires a good working knowledge of the assign module. This requires exploratory testing. Areas to test Creating an assignment with the following submission types enabled files onlinetext Creating an assignment with the following feedback types enabled pdf annotation files Comments Create an assignment with group submissions Create an assignment with retakes allowed. Create user overrides. Add the marking workflow to the marking of assignments. Creating an assignment with blind marking. As a teacher change the quick grading page options down the bottom. Make sure that personal data is correctly returned and formatted. Group submissions should not be deleted (there is no relation to a specific user ID). Unit tests cover most of the general functionality.