fix

tests/kernel/particles/test_nucleon.py

@@ -9,7 +9,9 @@ class TestNucleon(unittest.TestCase):
 
     def test_init(self):
         """测试初始化"""
-        nucleon = Nucleon("test_id", {"content": "hello", "note": "world"}, {"author": "test"})
+        nucleon = Nucleon(
+            "test_id", {"content": "hello", "note": "world"}, {"author": "test"}
+        )
         self.assertEqual(nucleon.ident, "test_id")
         self.assertEqual(nucleon.payload, {"content": "hello", "note": "world"})
         self.assertEqual(nucleon.metadata, {"author": "test"})
@@ -27,7 +29,7 @@ class TestNucleon(unittest.TestCase):
         self.assertEqual(nucleon["ident"], "test_id")
         self.assertEqual(nucleon["content"], "hello")
         self.assertEqual(nucleon["note"], "world")
-        
+
         with self.assertRaises(KeyError):
             _ = nucleon["nonexistent"]
 
@@ -58,16 +60,23 @@ class TestNucleon(unittest.TestCase):
 
     def test_do_eval_with_metadata_access(self):
         """测试 do_eval 访问元数据"""
-        nucleon = Nucleon("test_id", {"result": "eval:nucleon.metadata.get('value', 0)"}, {"value": 42})
+        nucleon = Nucleon(
+            "test_id",
+            {"result": "eval:nucleon.metadata.get('value', 0)"},
+            {"value": 42},
+        )
         nucleon.do_eval()
         self.assertEqual(nucleon.payload["result"], "42")
 
     def test_do_eval_nested(self):
         """测试 do_eval 处理嵌套结构"""
-        nucleon = Nucleon("test_id", {
-            "list": ["eval:2*3", "normal"],
-            "dict": {"key": "eval:'hello' + ' world'"}
-        })
+        nucleon = Nucleon(
+            "test_id",
+            {
+                "list": ["eval:2*3", "normal"],
+                "dict": {"key": "eval:'hello' + ' world'"},
+            },
+        )
         nucleon.do_eval()
         self.assertEqual(nucleon.payload["list"][0], "6")
         self.assertEqual(nucleon.payload["list"][1], "normal")
@@ -95,5 +104,5 @@ class TestNucleon(unittest.TestCase):
         self.assertEqual(placeholder.metadata, {})
 
 
-if __name__ == '__main__':
-    unittest.main()
+if __name__ == "__main__":
+    unittest.main()