add tests for relational query

Author: Archmonger

src/django_idom/hooks.py

@@ -112,7 +112,7 @@ def use_query(
 
     Args:
         query: A callable that returns a Django `Model` or `QuerySet`.
-        options: A `QueryOptions` object that can modify how the query is excuted.
+        options: An optional `QueryOptions` object that can modify how the query is excuted.
         *args: Positional arguments to pass into `query`.
 
     Keyword Args:

tests/test_app/tests/test_components.py

@@ -91,6 +91,9 @@ def test_authorized_user(self):
         )
         self.page.wait_for_selector("#authorized-user")
 
+    def test_relational_query(self):
+        self.page.locator("#relational-query[data-success=true]").wait_for()
+
     def test_use_query_and_mutation(self):
         todo_input = self.page.wait_for_selector("#todo-input")