fix

tests/kernel/puzzles/test_cloze.py

@@ -16,13 +16,13 @@ class TestClozePuzzle(unittest.TestCase):
         self.assertEqual(puzzle.wording, "填空题 - 尚未刷新谜题")
         self.assertEqual(puzzle.answer, ["填空题 - 尚未刷新谜题"])
 
-    @patch('random.sample')
+    @patch("random.sample")
     def test_refresh(self, mock_sample):
         """测试 refresh 方法"""
         mock_sample.return_value = [0, 2]  # 选择索引 0 和 2
         puzzle = ClozePuzzle("hello/world/test", min_denominator=2, delimiter="/")
         puzzle.refresh()
-        
+
         # 检查 wording 和 answer
         self.assertNotEqual(puzzle.wording, "填空题 - 尚未刷新谜题")
         self.assertNotEqual(puzzle.answer, ["填空题 - 尚未刷新谜题"])
@@ -47,5 +47,5 @@ class TestClozePuzzle(unittest.TestCase):
         self.assertIn("填空题 - 尚未刷新谜题", str_repr)
 
 
-if __name__ == '__main__':
-    unittest.main()
+if __name__ == "__main__":
+    unittest.main()