fix: 改进

tests/kernel/puzzles/test_cloze.py

@@ -0,0 +1,51 @@
+import unittest
+from unittest.mock import patch, MagicMock
+
+from heurams.kernel.puzzles.cloze import ClozePuzzle
+
+
+class TestClozePuzzle(unittest.TestCase):
+    """测试 ClozePuzzle 类"""
+
+    def test_init(self):
+        """测试初始化"""
+        puzzle = ClozePuzzle("hello/world/test", min_denominator=3, delimiter="/")
+        self.assertEqual(puzzle.text, "hello/world/test")
+        self.assertEqual(puzzle.min_denominator, 3)
+        self.assertEqual(puzzle.delimiter, "/")
+        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')
+    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"])
+        # 根据模拟，应该有两个填空
+        self.assertEqual(len(puzzle.answer), 2)
+        self.assertEqual(puzzle.answer, ["hello", "test"])
+        # wording 应包含下划线
+        self.assertIn("__", puzzle.wording)
+
+    def test_refresh_empty_text(self):
+        """测试空文本的 refresh"""
+        puzzle = ClozePuzzle("", min_denominator=3, delimiter="/")
+        puzzle.refresh()  # 不应引发异常
+        # 空文本导致 wording 和 answer 为空
+        self.assertEqual(puzzle.wording, "")
+        self.assertEqual(puzzle.answer, [])
+
+    def test_str(self):
+        """测试 __str__ 方法"""
+        puzzle = ClozePuzzle("hello/world", min_denominator=2, delimiter="/")
+        str_repr = str(puzzle)
+        self.assertIn("填空题 - 尚未刷新谜题", str_repr)
+
+
+if __name__ == '__main__':
+    unittest.main()