Adjust CI coverage reporting & tox coverage config

Capture tox output to a file and append the coverage summary to the GitHub Actions job summary only for the ubuntu-latest / Python 3.12 matrix. Restrict Codecov uploads to that same matrix for PRs targeting main/master and point the upload at a per-environment coverage XML (coverage.py312.xml). Move coverage settings into tox.ini so tests generate env-specific .coverage files (COVERAGE_FILE) and XML reports ({toxinidir}/.coverage.{envname}.xml) for more reliable CI artifact handling.

Author: C-Achard

.github/workflows/testing-ci.yml

@@ -55,22 +55,22 @@ jobs:
 
       - name: Run tests (exclude hardware) with coverage via tox
         run: |
-          tox -q
+          tox -q | tee tox-output.log
 
       - name: Append Coverage Summary to Job
-        if: always()
+        if: matrix.os == 'ubuntu-latest' && matrix.python == '3.12'
         shell: bash
         run: |
-          python -m pip install -U coverage
           echo "## Coverage Summary" >> "$GITHUB_STEP_SUMMARY"
-          echo "" >> "$GITHUB_STEP_SUMMARY"
           echo '```text' >> "$GITHUB_STEP_SUMMARY"
-          python -m coverage report -m >> "$GITHUB_STEP_SUMMARY" || true
+          # Pull the coverage table from tox output:
+          sed -n '/^Name\s\+Stmts\s\+Miss\s\+Cover/,$p' tox-output.txt >> "$GITHUB_STEP_SUMMARY" || true
           echo '```' >> "$GITHUB_STEP_SUMMARY"
 
+
       - name: Upload coverage to Codecov
-        if: github.event_name == 'pull_request' && (github.base_ref == 'main' || github.base_ref == 'master')
+        if: matrix.os == 'ubuntu-latest' && matrix.python == '3.12' && github.event_name == 'pull_request' && (github.base_ref == 'main' || github.base_ref == 'master')
         uses: codecov/codecov-action@v5
         with:
-          files: ./coverage.xml
+          files: ./coverage.py312.xml
           fail_ci_if_error: true

tox.ini

@@ -11,10 +11,6 @@ description = Unit + smoke tests (exclude hardware) with coverage
 package = wheel
 extras = test
 
-# Keep behavior aligned with your GitHub Actions job:
-commands =
-    pytest -m "not hardware" --maxfail=1 --disable-warnings \
-        --cov=dlclivegui --cov-report=xml --cov-report=term-missing {posargs}
 
 # Helpful defaults for headless CI runs (Qt/OpenCV):
 setenv =
@@ -23,6 +19,15 @@ setenv =
     QT_OPENGL = software
     # Can help avoid some Windows/OpenCV capture backend flakiness when tests touch video I/O:
     OPENCV_VIDEOIO_PRIORITY_MSMF = 0
+    COVERAGE_FILE = {toxinidir}/.coverage.{envname}
+
+# Keep behavior aligned with your GitHub Actions job:
+commands =
+    pytest -m "not hardware" --maxfail=1 --disable-warnings \
+        --cov=dlclivegui
+        --cov-report=xml:{toxinidir}/.coverage.{envname}.xml
+        --cov-report=term-missing
+        {posargs}
 
 # Let CI variables pass through (useful for debugging and some GUI/headless setups):
 passenv =