test(celery): Add test for "custom" queue set on span

The previous test only checked that the queue was set on the span when the queue had the default name ("celery"). This test adds a check to ensure the queue also gets set on the span when it has a non-default value.

tests/integrations/celery/test_celery.py

@@ -618,11 +618,14 @@ def example_task():
     assert result.get() == "success"
 
 
+@pytest.mark.parametrize("routing_key", ("celery", "custom"))
 @mock.patch("celery.app.task.Task.request")
-def test_messaging_destination_name(mock_request, init_celery, capture_events):
+def test_messaging_destination_name(
+    mock_request, routing_key, init_celery, capture_events
+):
     celery_app = init_celery(enable_tracing=True)
     events = capture_events()
-    mock_request.delivery_info = {"routing_key": "celery", "exchange": ""}
+    mock_request.delivery_info = {"routing_key": routing_key, "exchange": ""}
 
     @celery_app.task()
     def task(): ...
@@ -631,4 +634,4 @@ def task(): ...
 
     (event,) = events
     (span,) = event["spans"]
-    assert span["data"]["messaging.destination.name"] == "celery"
+    assert span["data"]["messaging.destination.name"] == routing_key