Add a test for a scalar 0D data structure

[codecov[bot]]

Codecov Report

Merging #770 (7b9d161) into develop (32a158b) will increase coverage by 0.00%. The diff coverage is 100.00%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #770 +/- ## ======================================== Coverage 98.79% 98.79% ======================================== Files 75 75 Lines 7282 7287 +5 ======================================== + Hits 7194 7199 +5 Misses 88 88 ```