diff --git a/tests/test_tags.py b/tests/test_tags.py
index 993b81430..ed9460fdb 100644
--- a/tests/test_tags.py
+++ b/tests/test_tags.py
@@ -6,10 +6,12 @@ def test_string_is_invalid_in_router_tags():
     with pytest.raises(AssertionError):
         APIRouter(tags="test")
 
+
 def test_string_is_invalid_in_router_route_tags():
     router = APIRouter()
 
     with pytest.raises(AssertionError):
+
         @router.get("", tags="test")
         def test():
             ...
@@ -24,4 +26,4 @@ def test_string_is_invalid_in_include_router_tags():
         ...
 
     with pytest.raises(AssertionError):
-        app.include_router(router, prefix="/test", tags="test")
\ No newline at end of file
+        app.include_router(router, prefix="/test", tags="test")