Add test case / delinting code

[codecov[bot]]

Codecov Report

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

Project coverage is 67.11%. Comparing base (4055669) to head (1f1cce5). Report is 4 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #2534 +/- ## ============================================ + Coverage 67.07% 67.11% +0.03% Complexity 1480 1480 ============================================ Files 219 219 Lines 12671 12671 Branches 1530 1530 ============================================ + Hits 8499 8504 +5 + Misses 3644 3640 -4 + Partials 528 527 -1 ```

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