General comments/observations of the problems TAs noticed 
       while going through students' code.


- not adding comments to code. Just because you have javadoc
  doesn't mean you don't have to comment code inside the method as
  well. This is especially true if you're doing something non-obvious. 

- trying to test too much in a single test method. Test methods should 
  be split up into smaller methods. 

- some people decided to copy the SampleRoundRobinRobotTester for their 
  *RobotTester test cases; this got you 1 mark, but nothing more. 

- not testing certain public methods that the student  
  implemented, or not testing them properly. For example:
    - testing the run() method of the Robot, but not verifying 
      the TaskState afterwards to see that the robot ran the tasks
      properly. 
    - Dequeueing items from the LLEditableQueue but not checking the
      return value
    - not testing the removeTask() method in the Robot implementations

- not testing some of the "boundary cases" -- should have been give away
  marks since these were mentioned in tutorial & on the message board 
  (for example, testing a task with the simplest possible main function; 
   or testing a task that runs an infinite loop or infinite recursion).