Run coverage separately

[ogenstad]

Runs "coverage" as a separate task in order to get around problems with our own pytest plugin being loaded before pytest-cov starts to calculate coverage which causes the parts of our files that get auto imported to be marked as missed in the coverage report.

@dgarros, this was what I had in mind. Should also work fine with regards to xdist etc.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

@@             Coverage Diff              @@
##           develop      #79       +/-   ##
============================================
+ Coverage    43.28%   64.62%   +21.33%     
============================================
  Files           74       78        +4     
  Lines         6847     6917       +70     
  Branches      1353     1357        +4     
============================================
+ Hits          2964     4470     +1506     
+ Misses        3552     2095     -1457     
- Partials       331      352       +21     

Flag	Coverage Δ
python-3.10	43.28% <ø> (ø)
python-3.11	43.28% <ø> (ø)
python-3.12	43.28% <ø> (ø)
python-3.9	43.23% <ø> (ø)
python-filler-3.12	36.83% <ø> (?)

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see 44 files with indirect coverage changes