Add tests to improve code coverage

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 99.02%. Comparing base (e3b019d) to head (f421cc9).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #214 +/- ## ========================================== + Coverage 94.57% 99.02% +4.44% ========================================== Files 2 2 Lines 1401 1333 -68 ========================================== - Hits 1325 1320 -5 + Misses 76 13 -63 ```

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