add coverage to with_romancal env

.github/workflows/ci.yml

@@ -37,4 +37,5 @@ jobs:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
     with:
       envs: |
-        - linux: with_romancal
+        - linux: withromancal-cov
+          coverage: codecov

tox.ini

@@ -4,6 +4,7 @@ env_list =
     test{,-devdeps}{,-pyargs,-cov}-xdist
     test-numpy{120,121,122}-xdist
     build-{docs,dist}
+    withromancal
 
 # tox environments are constructed with so-called 'factors' (or terms)
 # separated by hyphens, e.g. test-devdeps-cov. Lines below starting with factor:
@@ -70,14 +71,18 @@ deps =
 commands =
     python -m build .
 
-[testenv:with_romancal]
+[testenv:withromancal]
 allowlist_externals =
     git
     bash
+deps =
+    pytest-cov
 commands_pre =
     bash -c "pip freeze -q | grep 'roman_datamodels @' > {env_tmp_dir}/requirements.txt"
     pip install git+https://github.com/spacetelescope/romancal.git
     pip install -r {env_tmp_dir}/requirements.txt
     pip freeze
 commands =
-    pytest tests/test_open.py::test_open_asn
+    pytest tests/test_open.py::test_open_asn \
+    --cov=tests --cov-config pyproject.toml --cov-report term-missing --cov-report xml \
+    {posargs}