adding a test to show that integrated reaction rates can be collected

[codecov-commenter]

Codecov Report

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

Project coverage is 94.62%. Comparing base (a833afc) to head (e8db6aa).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #459 +/- ## ======================================= Coverage 94.62% 94.62% ======================================= Files 38 38 Lines 3107 3107 ======================================= Hits 2940 2940 Misses 167 167 ```

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