Identify untested portions of the codebase

[jardinetsouffleton]

As of now, our code coverage stands around 68%. While this is acceptable, we would benefit from understanding which portions of the codebase are lacking in terms of code coverage. This would allow us to have data on the current state of our code coverage and focus our efforts on most important sections.
Detailed coverage data available here

[jardinetsouffleton]

Lacking sections were identified and issues #285 #284 and #283 were created.