Maintain 100% branch coverage in the test suite

[simojo]

The current test suite covers just above 99% of all branches. When pipenv run cover is ran, the branches left untouched are displayed, but there is no way to tell how to implement a test to cover them or why they are untouched. If there was a more comprehensive report that was displayed when we lacked 100% branch coverage, it would prove to be very useful.