Add romanisim to downstream

[WilliamJamieson]

Add romanisim to downstream testing.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 87.42%. Comparing base (9cd8552) to head (60de350).
Report is 2 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #530   +/-   ##
=======================================
  Coverage   87.42%   87.42%           
=======================================
  Files          22       22           
  Lines        3874     3874           
=======================================
  Hits         3387     3387           
  Misses        487      487           

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[zacharyburnett]

https://github.com/spacetelescope/gwcs/actions/runs/11920127584/job/33221427859?pr=530#step:10:2280

PytestUnknownMarkWarning: Unknown pytest.mark.soctests - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/how-to/mark.html
    @pytest.mark.soctests

It looks to me like this is due to pytest initializing within the gwcs source directory, with its pytest config that doesn't include the soctests mark, and then moving to the romanisim package to DISCOVER the tests, but not having the marks registered. Can we explicitly checkout romanisim first in tox and start pytest from there somehow? Another solution could be having a dedicated workflow job for this downstream test without using tox or the OpenAstronomy workflow

[braingram]

https://github.com/spacetelescope/gwcs/actions/runs/11920127584/job/33221427859?pr=530#step:10:2280

PytestUnknownMarkWarning: Unknown pytest.mark.soctests - is this a typo?  You can register custom marks to avoid this warning - for details, see https://docs.pytest.org/en/stable/how-to/mark.html
    @pytest.mark.soctests

It looks to me like this is due to pytest initializing within the gwcs source directory, with its pytest config that doesn't include the soctests mark, and then moving to the romanisim package to DISCOVER the tests, but not having the marks registered. Can we explicitly checkout romanisim first in tox and start pytest from there somehow? Another solution could be having a dedicated workflow job for this downstream test without using tox or the OpenAstronomy workflow

stcal had this issue to. Checking out the downstream and running from within the checkout allows pytest to find the configuration for the downstream package (instead of the gwcs one). See spacetelescope/stcal#297