better testing for the evaluation/coevaluation through the adjunction

[codecov[bot]]

Codecov Report

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

Comparison is base (63df7e4) 100.00% compared to head (685bdff) 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #233 +/- ## ========================================= Coverage 100.00% 100.00% ========================================= Files 12 12 Lines 1908 1908 ========================================= Hits 1908 1908 ```

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