diff --git a/src/darker/tests/test_git.py b/src/darker/tests/test_git.py
index da170346b..a4d5cc251 100644
--- a/src/darker/tests/test_git.py
+++ b/src/darker/tests/test_git.py
@@ -220,11 +220,13 @@ def test_git_diff_name_only(git_repo):
     first = git_repo.get_hash()
     git_repo.add({"a.py": "A", "b.dy": "B"}, commit="only a.py modified")
     git_repo.rename("c.py", "x.py", commit="rename c.py to x.py")
+
     second = git_repo.get_hash()
 
     result = git._git_diff_name_only(
         first, second, {Path("a.py"), Path("c.py"), Path("Z.py")}, git_repo.root
     )
+
     assert result == {Path("a.py")}