fix coverage data collection: use pytest plugin to collect from subprocesses

.gitlab-ci.yml

@@ -39,8 +39,7 @@ testsuite:
     - pip install "git+https://i10git.cs.fau.de/pycodegen/pystencils.git@v2.0-dev"
     - pip install -e .
   script:
-    - coverage run -m pytest -v
-    - coverage report
+    - pytest -v
     - coverage html
     - coverage xml
   coverage: '/TOTAL.*\s+(\d+%)$/'

pytest.ini

@@ -3,6 +3,6 @@ testpaths = src/pystencilssfg tests/
 python_files = "test_*.py"
 #   Need to ignore the generator scripts, otherwise they would be executed
 #   during test collection
-addopts = --doctest-modules --ignore=tests/generator_scripts/scripts
+addopts = --doctest-modules --ignore=tests/generator_scripts/scripts --cov=src/pystencilssfg --cov-report=term
 
 doctest_optionflags = NORMALIZE_WHITESPACE IGNORE_EXCEPTION_DETAIL