COPY test-reporting (1/2) from Gutenberg

.github/workflows/e2e-tests.yml

@@ -130,9 +130,47 @@ jobs:
         npm run test:e2e
 
 
-    - name: Retain failed test results
+    - name: Archive debug artifacts (screenshots, traces)
       uses: actions/upload-artifact@v4
-      if: failure()
+      if: ${{ ! cancelled() }}
       with:
-        name: test-results-${{ matrix.php }}
+        name: failures-artifacts--${{ matrix.php }}
         path: artifacts/test-results/
+        if-no-files-found: ignore
+
+
+    - name: Archive flaky tests report
+      uses: actions/upload-artifact@v4
+      if: ${{ ! cancelled() }}
+      with:
+          name: flaky-tests-report--${{ matrix.php }}
+          path: flaky-tests
+          if-no-files-found: ignore
+
+
+  merge-artifacts:
+    name: Merge Artifacts
+    if: ${{ ! cancelled() }}
+    needs: [e2e-tests]
+    runs-on: ubuntu-latest
+    outputs:
+      has-flaky-test-report: ${{ !!steps.merge-flaky-tests-reports.outputs.artifact-id }}
+    steps:
+      - name: Merge failures artifacts
+        uses: actions/upload-artifact/merge@v4
+        # Don't fail the job if there aren't any artifacts to merge.
+        continue-on-error: true
+        with:
+          name: failures-artifacts
+          # Retain the merged artifacts in case of a rerun.
+          pattern: failures-artifacts*
+          delete-merged: true
+
+      - name: Merge flaky tests reports
+        id: merge-flaky-tests-reports
+        uses: actions/upload-artifact/merge@v4
+        continue-on-error: true
+        with:
+          name: flaky-tests-report
+          pattern: flaky-tests-report*
+          delete-merged: true