Avoid async warnings when running tests

Author: Cito

tests/execution/test_sync.py

@@ -102,15 +102,18 @@ def does_not_return_a_promise_for_sync_execution():
                 None,
             )
 
-        def throws_if_encountering_async_operation_with_check_sync():
+        @mark.asyncio
+        @mark.filterwarnings("ignore:.* was never awaited:RuntimeWarning")
+        async def throws_if_encountering_async_operation_with_check_sync():
             doc = "query Example { syncField, asyncField }"
             with raises(RuntimeError) as exc_info:
                 graphql_sync(schema, doc, "rootValue", check_sync=True)
             msg = str(exc_info.value)
             assert msg == "GraphQL execution failed to complete synchronously."
 
+        @mark.asyncio
         @mark.filterwarnings("ignore:.* was never awaited:RuntimeWarning")
-        def throws_if_encountering_async_operation_without_check_sync():
+        async def throws_if_encountering_async_operation_without_check_sync():
             doc = "query Example { syncField, asyncField }"
             result = graphql_sync(schema, doc, "rootValue")
             assert result == (
@@ -124,6 +127,6 @@ def throws_if_encountering_async_operation_without_check_sync():
                     }
                 ],
             )
-            # garbage collect coroutine in order to swallow warning
+            # garbage collect coroutine in order to not postpone the warning
             del result
             collect()

tests/subscription/test_subscribe.py

@@ -361,6 +361,7 @@ async def should_pass_through_unexpected_errors_thrown_in_subscribe():
             await subscribe(schema=email_schema, document={})  # type: ignore
 
     @mark.asyncio
+    @mark.filterwarnings("ignore:.* was never awaited:RuntimeWarning")
     async def throws_an_error_if_subscribe_does_not_return_an_iterator():
         invalid_email_schema = GraphQLSchema(
             query=QueryType,