fix: 改进

tests/kernel/puzzles/test_base.py

@@ -0,0 +1,23 @@
+import unittest
+from unittest.mock import Mock
+
+from heurams.kernel.puzzles.base import BasePuzzle
+
+
+class TestBasePuzzle(unittest.TestCase):
+    """测试 BasePuzzle 基类"""
+
+    def test_refresh_not_implemented(self):
+        """测试 refresh 方法未实现时抛出异常"""
+        puzzle = BasePuzzle()
+        with self.assertRaises(NotImplementedError):
+            puzzle.refresh()
+
+    def test_str(self):
+        """测试 __str__ 方法"""
+        puzzle = BasePuzzle()
+        self.assertEqual(str(puzzle), "谜题: BasePuzzle")
+
+
+if __name__ == '__main__':
+    unittest.main()