do not run misra_tests.py in parallel

Author: firewave

.github/workflows/scriptcheck.yml

@@ -136,18 +136,20 @@ jobs:
         run: |
           python tools/test_matchcompiler.py
 
+      # TODO: run with "-n auto" when misra_test.py can be run in parallel
       # we cannot specify -Werror since xml/etree/ElementTree.py in Python 3.9/3.10 contains an unclosed file
       - name: test addons
         if: matrix.python-version == '3.9' || matrix.python-version == '3.10'
         run: |
-          python -m pytest --strict-markers -vv -n auto addons/test
+          python -m pytest --strict-markers -vv -n 1 addons/test
         env:
           PYTHONPATH: ./addons
 
+      # TODO: run with "-n auto" when misra_test.py can be run in parallel
       - name: test addons
         if: matrix.python-version != '3.9' && matrix.python-version != '3.10'
         run: |
-          python -m pytest -Werror --strict-markers -vv -n auto addons/test
+          python -m pytest -Werror --strict-markers -vv -n 1 addons/test
         env:
           PYTHONPATH: ./addons
 

addons/test/misra_test.py

@@ -30,6 +30,7 @@ def checker():
     return MisraChecker(settings)
 
 
+# FIXME: files are generates in the source tree so it will cause issues if tests are run with xdist.
 @pytest.fixture
 def test_files():
     for f in TEST_SOURCE_FILES: