fix individual runtime result

Author: parthea

.github/workflows/unittest.yml

@@ -14,7 +14,7 @@ permissions:
 
 # Configurable global environment variables for batching
 env:
-  BATCH_SIZE: 10
+  BATCH_SIZE: 5
   TEST_ALL_PACKAGES: "true" # Set to "false" to only run tests for packages with a git diff
 
 jobs:
@@ -95,6 +95,10 @@ jobs:
         python -m pip install --upgrade setuptools pip wheel
         python -m pip install nox
     - name: Run unit tests
+      id: run-tests
+      # 'continue-on-error: true' is needed to capture the result of individual runtimes
+      # Otherwise a failure in a single runtime will appear as a failure in all runtimes.
+      continue-on-error: true
       env:
         COVERAGE_FILE: ${{ github.workspace }}/.coverage-${{ matrix.python }}
         # Dynamically set BUILD_TYPE to an empty string to skip the diff calculation if TEST_ALL_PACKAGES is true
@@ -120,6 +124,22 @@ jobs:
         subdirs=("${BATCH_PACKAGES[@]%/}")
 
         ci/run_conditional_tests.sh "${subdirs[@]}"
+
+    - name: Save Cell Status Footprint
+      # Captures the real raw execution outcome ('success' or 'failure') 
+      # from the testing step and logs it to a text file for isolated verification.
+      run: |
+        mkdir -p footprints
+        echo "${{ steps.run-tests.outcome }}" > footprints/status.txt
+
+    - name: Upload Status Footprint
+      # Uploads the captured footprint text file. This creates a traceable
+      # run record for each specific Python matrix variant and batch slice.
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+      with:
+        name: footprint-${{ matrix.python }}-${{ matrix.batch-index }}
+        path: footprints/
+
     - name: Upload coverage results
       uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
       with:
@@ -247,19 +267,28 @@ jobs:
   unittest-runtime-result:
     name: "unit (${{ matrix.python }})"
     needs: unit
-    if: always()
     strategy:
       matrix:
         python: ['3.9', '3.10', "3.11", "3.12", "3.13", "3.14"]
     runs-on: ubuntu-latest
     steps:
-      - name: Check unit tests results
-        run: |
-          UNIT_STATUS="${{ needs.unit.result }}"
+      - name: Download Python-Specific Footprints
+        # Downloads *only* the status footprints matching the specific Python matrix 
+        # version of this cell. This isolates runtime failure detection to prevent a failure in one 
+        # Python track (e.g. 3.14) from falsely blocking status gates on passing tracks (e.g. 3.10).
+        uses: actions/download-artifact@634f93cb2916e3fdff6788551b99b062d0335ce0 # v5
+        with:
+          pattern: footprint-${{ matrix.python }}-*
+          path: python-footprints/
 
-          if [[ "$UNIT_STATUS" == "success" ]]; then
-            echo "Python ${{ matrix.python }} tests passed."
-          else
-            echo "Error: Python ${{ matrix.python }} status is '$UNIT_STATUS'."
+      - name: Validate Isolated Python Statuses
+        # Inspects the isolated footprint files downloaded for this target Python version.
+        # If any underlying batch slice reported a 'failure', this step issues a hard exit 1, failing this 
+        # specific check node cleanly and blocking branch merge protections.
+        run: |
+          if grep -q -E "failure|cancelled" python-footprints/**/status.txt; then
+            echo "Error: One or more batches for Python ${{ matrix.python }} failed."
             exit 1
+          else
+            echo "Success: All batches for Python ${{ matrix.python }} passed successfully!"
           fi