CI: Test with newer RabbitMQ versions

.github/workflows/nightly.yml

@@ -21,7 +21,7 @@ concurrency:
 
 jobs:
 
-  tests:
+  nightly-tests:
 
     if: github.repository == 'aiidateam/aiida-core'      # Prevent running the builds on forks as well
     runs-on: ubuntu-latest
@@ -76,9 +76,9 @@ jobs:
       run: .github/workflows/tests_nightly.sh
 
     - name: Slack notification
-            # Always run this step (otherwise it would be skipped if any of the previous steps fail) but only if the
-            # `install` or `tests` steps failed, and the `SLACK_WEBHOOK` is available. The latter is not the case for
-            # pull requests that come from forks. This is a limitation of secrets on GHA
+      # Always run this step (otherwise it would be skipped if any of the previous steps fail) but only if the
+      # `install` or `tests` steps failed, and the `SLACK_WEBHOOK` is available. The latter is not the case for
+      # pull requests that come from forks. This is a limitation of secrets on GHA
       if: always() && (steps.install.outcome == 'Failure' || steps.tests.outcome == 'Failure') && env.SLACK_WEBHOOK != null
       uses: rtCamp/action-slack-notify@v2
       env:
@@ -88,3 +88,63 @@ jobs:
         SLACK_COLOR: b60205
         SLACK_TITLE: Nightly build of `aiida-core/main` failed
         SLACK_MESSAGE: The tests of the `nightly.yml` GHA worklow failed.
+
+
+  # Run a subset of test suite to ensure compatibility with latest RabbitMQ releases
+  rabbitmq_tests:
+
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    strategy:
+      fail-fast: false
+      matrix:
+        # Currently supported RMQ versions per:
+        # https://www.rabbitmq.com/docs/which-erlang#compatibility-matrix
+        rabbitmq-version: ['3.11', '3.12', '3.13']
+
+    services:
+      postgres:
+        image: postgres:16
+        env:
+          POSTGRES_DB: test_aiida
+          POSTGRES_PASSWORD: ''
+          POSTGRES_HOST_AUTH_METHOD: trust
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+        - 5432:5432
+      rabbitmq:
+        image: rabbitmq:${{ matrix.rabbitmq-version }}-management
+        ports:
+        - 5672:5672
+        - 15672:15672
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Install aiida-core
+      uses: ./.github/actions/install-aiida-core
+
+    - name: Install system dependencies
+      run: sudo apt update && sudo apt install postgresql
+
+    - name: Run tests
+      run: pytest -sv -k 'requires_rmq'
+
+    - name: Slack notification
+      # Always run this step (otherwise it would be skipped if any of the previous steps fail) but only if the
+      # `install` or `tests` steps failed, and the `SLACK_WEBHOOK` is available. The latter is not the case for
+      # pull requests that come from forks. This is a limitation of secrets on GHA
+      if: always() && (steps.install.outcome == 'Failure' || steps.tests.outcome == 'Failure') && env.SLACK_WEBHOOK != null
+      uses: rtCamp/action-slack-notify@v2
+      env:
+        SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+        SLACK_ICON: https://www.materialscloud.org/discover/images/0ba0a17d.aiida-logo-128.png
+        SLACK_CHANNEL: dev-aiida-core
+        SLACK_COLOR: b60205
+        SLACK_TITLE: RabbitMQ nightly tests of `aiida-core/main` failed
+        SLACK_MESSAGE: The rabbitmq tests in the `nightly.yml` GHA worklow failed.