diff --git a/tests/test_path.py b/tests/test_path.py
index 582addb7c..3b9b268ea 100644
--- a/tests/test_path.py
+++ b/tests/test_path.py
@@ -27,12 +27,15 @@ class ListPathApp(App[None]):
     CSS_PATH = ["test.css", Path("/another/path.css")]
 
 
-@pytest.mark.parametrize("app,expected_css_path_attribute", [
-    (RelativePathObjectApp(), [APP_DIR / "test.css"]),
-    (RelativePathStrApp(), [APP_DIR / "test.css"]),
-    (AbsolutePathObjectApp(), [Path("/tmp/test.css")]),
-    (AbsolutePathStrApp(), [Path("/tmp/test.css")]),
-    (ListPathApp(), [APP_DIR / "test.css", Path("/another/path.css")]),
-])
+@pytest.mark.parametrize(
+    "app,expected_css_path_attribute",
+    [
+        (RelativePathObjectApp(), [APP_DIR / "test.css"]),
+        (RelativePathStrApp(), [APP_DIR / "test.css"]),
+        (AbsolutePathObjectApp(), [Path("/tmp/test.css")]),
+        (AbsolutePathStrApp(), [Path("/tmp/test.css")]),
+        (ListPathApp(), [APP_DIR / "test.css", Path("/another/path.css")]),
+    ],
+)
 def test_css_paths_of_various_types(app, expected_css_path_attribute):
     assert app.css_path == [path.absolute() for path in expected_css_path_attribute]