These are the edge test cases that don't belong in the doctest.
| Class | MainException | Exception raised from the main body of an ITunableLoop. |
| Class | CleanupException | Exception raised from the cleanup method of an ITunableLoop. |
| Class | IsDoneException | Exception raised from the isDone method of an ITunableLoop. |
| Class | FailingLoop | Undocumented |
| Class | TestSomething | No class docstring; 2/2 methods documented |