Actions: Join on test suites (#106930)

.github/workflows/pr-e2e-tests.yml

@@ -136,3 +136,28 @@ jobs:
           name: ${{ steps.set-suite-name.outputs.suite }}-${{ github.run_number }}
           path: videos
           retention-days: 1
+
+  # This is the job that is actually required by rulesets.
+  # We want to only require one job instead of all the individual tests.
+  # Future work also allows us to start skipping some tests based on changed files.
+  required-e2e-tests:
+    needs:
+      - run-e2e-tests
+    # always() is the best function here.
+    # success() || failure() will skip this function if any need is also skipped.
+    # That means conditional test suites will fail the entire requirement check.
+    if: always()
+
+    name: All E2E tests complete
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check test suites
+        env:
+          NEEDS: ${{ toJson(needs) }}
+        run: |
+          FAILURES="$(echo "$NEEDS" | jq 'with_entries(select(.value.result == "failure")) | map_values(.result)')"
+          echo "$FAILURES"
+          if [ "$(echo "$FAILURES" | jq '. | length')" != "0" ]; then
+            exit 1
+          fi
+          echo "All OK!"