Add test to cover unit conversion path in DMSReader - #5180

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.72%. Comparing base (9fb8b0a) to head (7882b3b).
⚠️ Report is 60 commits behind head on develop.

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##           develop    #5180      +/-   ##
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- Coverage    92.72%   92.72%   -0.01%     
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  Files          180      180              
  Lines        22472    22475       +3     
  Branches      3188     3190       +2     
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+ Hits         20838    20840       +2     
- Misses        1176     1177       +1     
  Partials       458      458              

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Thanks for the detailed feedback
I’ll update the test to assert numerical correctness (pre- and post-conversion) for positions, velocities, and dimensions, rather than just triggering the code path.

Do you know of a file with velocities that we have easily available?

I don't unfortunately, I'm not even sure the current DMS reference file has dimensions, so it's likely the current file isn't testing anything important.

@tani-dubey do you have experience with desmond and can you create a suitable test file?

@tani-dubey do you have experience with desmond and can you create a suitable test file?

I don’t have prior hands-on experience with Desmond, and I don’t currently have an environment set up to generate DMS files. I’m happy to help investigate options, but creating a new, scientifically sound reference DMS file might be challenging without access to Desmond itself.

@tani-dubey I just don't see how this issue can be fixed without new data files. Given your response about the difficulty in generating new files, I will close this PR for now.