ci: use pytest-xdist to speed up the tests

.coveragerc

@@ -0,0 +1,37 @@
+# SPDX-FileCopyrightText: Copyright (C) 2025 Opal Health Informatics Group at the Research Institute of the McGill University Health Centre <[email protected]>
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
+[run]
+source = opal
+; include = opal/*
+omit =
+    .*,
+    **/tests/*,
+    # **/migrations/*,
+    opal/wsgi.py,
+    opal/asgi.py,
+    # omit prod settings
+    opal/settings_prod.py,
+    # omit sidebar menu
+    opal/templates/sidebar_menu.html,
+    opal/templates/components/menu_group.html,
+    opal/templates/components/menu_item.html
+branch = True
+plugins =
+    django_coverage_plugin
+
+[report]
+fail_under = 100
+precision = 2
+show_missing = True
+skip_empty = True
+skip_covered = True
+exclude_lines =
+    # Have to re-enable the standard pragma
+    pragma: no cover
+    # Don't require coverage on TYPE_CHECKING imports
+    if TYPE_CHECKING:
+
+    # Don't complain if non-runnable code isn't run:
+    if __name__ == .__main__.:

.github/workflows/ci.yml

@@ -164,13 +164,17 @@ jobs:
           # generate secret key
           SECRET_KEY=$(python -c "import secrets; print(secrets.token_urlsafe())")
           sed -i "s/^SECRET_KEY=.*/SECRET_KEY=$SECRET_KEY/" .env
-          MYSQL_PWD=$DB_ROOT_PASSWORD mariadb -u root -h db --skip-ssl -e "GRANT ALL PRIVILEGES ON \`test_OpalDB\`.* TO \`$DB_USER\`@\`%\`;"
-          MYSQL_PWD=$DB_ROOT_PASSWORD mariadb -u root -h db --skip-ssl -e "GRANT ALL PRIVILEGES ON \`test_QuestionnaireDB\`.* TO \`$DB_USER\`@\`%\`;"
+          MYSQL_PWD=$DB_ROOT_PASSWORD mariadb -u root -h db --skip-ssl -e "GRANT ALL PRIVILEGES ON \`test_opal%\`.* TO \`$DB_USER\`@\`%\`;"
+          MYSQL_PWD=$DB_ROOT_PASSWORD mariadb -u root -h db --skip-ssl -e "GRANT ALL PRIVILEGES ON \`test_OpalDB%\`.* TO \`$DB_USER\`@\`%\`;"
+          MYSQL_PWD=$DB_ROOT_PASSWORD mariadb -u root -h db --skip-ssl -e "GRANT ALL PRIVILEGES ON \`test_QuestionnaireDB%\`.* TO \`$DB_USER\`@\`%\`;"
       - name: Run pytest
+        env:
+          # https://github.com/zupo/awesome-pytest-speedup#pythondontwritebytecode
+          PYTHONDONTWRITEBYTECODE: 1
         run: |
           uv run pytest --version
           # -m "" runs all tests, even the ones marked as slow
-          uv run coverage run -m pytest -m "" -v --junitxml=test-report.xml
+          uv run pytest --cov=opal -n auto -m "" --junitxml=test-report.xml
       # see: https://github.com/dorny/test-reporter/issues/244
       # - name: Publish Test Results
       #   uses: dorny/[email protected]
@@ -237,6 +241,6 @@ jobs:
     permissions:
       contents: read
       packages: write
-    uses: opalmedapps/.github/.github/workflows/docker-build.yaml@fix-build
+    uses: opalmedapps/.github/.github/workflows/docker-build.yaml@main
     with:
       test-command: python manage.py

.github/workflows/release.yml

@@ -17,6 +17,6 @@ jobs:
     permissions:
       contents: read
       packages: write
-    uses: opalmedapps/.github/.github/workflows/docker-build.yaml@fix-build
+    uses: opalmedapps/.github/.github/workflows/docker-build.yaml@main
     with:
       test-command: python manage.py

pyproject.toml

@@ -63,11 +63,14 @@ dev = [
     "pandas-stubs==2.2.3.250308",
     "pre-commit==4.2.0",
     "pytest==8.3.5",
+    # for proper coverage support with pytest-xdist
+    "pytest-cov==6.1.1",
     "pytest-django==4.11.1",
     "pytest-mock==3.14.0",
     "pytest-randomly==3.16.0",
     "pytest-socket==0.7.0",
     "pytest-sugar==1.0.0",
+    "pytest-xdist==3.6.1",
     "ruff==0.11.4",
     "types-beautifulsoup4==4.12.0.20250204",
     "types-fpdf2==2.8.2.20250318",

setup.cfg

@@ -44,37 +44,3 @@ warn_unreachable = False
 
 [mypy-*.factories]
 disallow_untyped_calls = False
-
-[coverage:run]
-source = opal
-; include = opal/*
-omit =
-    .*,
-    **/tests/*,
-    # **/migrations/*,
-    opal/wsgi.py,
-    opal/asgi.py,
-    # omit prod settings
-    opal/settings_prod.py,
-    # omit sidebar menu
-    opal/templates/sidebar_menu.html,
-    opal/templates/components/menu_group.html,
-    opal/templates/components/menu_item.html
-branch = True
-plugins =
-    django_coverage_plugin
-
-[coverage:report]
-fail_under = 100
-precision = 2
-show_missing = True
-skip_empty = True
-skip_covered = True
-exclude_lines =
-    # Have to re-enable the standard pragma
-    pragma: no cover
-    # Don't require coverage on TYPE_CHECKING imports
-    if TYPE_CHECKING:
-
-    # Don't complain if non-runnable code isn't run:
-    if __name__ == .__main__.: