ci: add required aggregate check (#281)

Author: ThomasK33

.github/workflows/test.yml

@@ -6,6 +6,7 @@ on:
     branches: [main]
   pull_request:
     branches: [main]
+  merge_group:
 
 permissions:
   contents: read
@@ -156,3 +157,25 @@ jobs:
       # genuine `:q` and self-reports via cquit (exit 0 = fixed, 1 = regressed).
       - name: Reject-on-quit regression gate (#238)
         run: nvim --headless -u NONE -l scripts/repro_issue_238.lua
+
+  required:
+    name: Required
+    runs-on: ubuntu-latest
+    needs:
+      - unit-tests
+      - integration-tests
+    if: ${{ always() }}
+
+    steps:
+      - name: Check required jobs
+        env:
+          UNIT_TESTS_RESULT: ${{ needs.unit-tests.result }}
+          INTEGRATION_TESTS_RESULT: ${{ needs.integration-tests.result }}
+        run: |
+          echo "unit-tests: $UNIT_TESTS_RESULT"
+          echo "integration-tests: $INTEGRATION_TESTS_RESULT"
+
+          if [ "$UNIT_TESTS_RESULT" != "success" ] || [ "$INTEGRATION_TESTS_RESULT" != "success" ]; then
+            echo "One or more required jobs failed."
+            exit 1
+          fi