Here's the hairiest parts to test:

Not tested:

• article.createPopup
  • FIX: Function comment is insane
  • Operates on inputs and returns outputs, but relies on global state, so mocking/stubbing will be needed.
  • Basically a view render function. Pretty big, 60LOC
• article.createThumbnail
  • 70 lines of various conditionals that determines if it should call one of the two methods below.
  • Hairy stuff, desperately needs tests, it's going to take work.
• article.getOffset
  • 60 lines of conditionals coupled with global state.
  • Not sure how we would properly unit-test it. Hard work.
• article.getClasses
  • 40 lines of conditionals composing CSS classes.
  • Should be tested, but it is not easily unit-testable/understandable as it is.
• article.processPopup
  • 55 lines of conditionals manipulating the com depending on global state.
  • Should be tested, but it is not easily unit-testable/understandable as it is.