test: bug fix test and round trip open file tests

[RyanJWard]

Description

Test for failed glb export test
Round trip tests using open_file

Checklist

• I have tested my changes locally.
• I have added necessary documentation or updated existing documentation.
• I have followed the coding style guidelines of this project.
• I have added appropriate unit tests.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have added the minimum version decorator to any new backend method implemented.
• I have made sure that the title of my PR follows Conventional commits style (e.g. feat: extrude circle to cylinder)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.66%. Comparing base (15e0d51) to head (d97bc7b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2107   +/-   ##
=======================================
  Coverage   93.66%   93.66%           
=======================================
  Files         138      138           
  Lines       10156    10156           
=======================================
  Hits         9513     9513           
  Misses        643      643           

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[RobPasMue]

Awesome - LGTM!