diff --git a/tests/basic/test_commands.py b/tests/basic/test_commands.py
index b9e297d72..6a91eb19f 100644
--- a/tests/basic/test_commands.py
+++ b/tests/basic/test_commands.py
@@ -707,7 +707,9 @@ class TestCommands(TestCase):
 
             # Verify files were restored correctly
             added_files = {Path(coder.get_rel_fname(f)).as_posix() for f in coder.abs_fnames}
-            read_only_files = {Path(coder.get_rel_fname(f)).as_posix() for f in coder.abs_read_only_fnames}
+            read_only_files = {
+                Path(coder.get_rel_fname(f)).as_posix() for f in coder.abs_read_only_fnames
+            }
 
             self.assertEqual(added_files, {"file1.txt", "file2.py"})
             self.assertEqual(read_only_files, {"subdir/file3.md"})