Merge pull request #729 from cordada/bugfix/pydantic-rut-serialize-none

extras: Fix serialization of `None` in Pydantic `Rut` type

Author: jtrobles-cdd

src/cl_sii/extras/pydantic_types.py

@@ -117,7 +117,8 @@ def validate_from_str(value: str) -> cl_sii.rut.Rut:
                 ]
             ),
             serialization=pydantic_core.core_schema.plain_serializer_function_ser_schema(
-                lambda instance: instance.canonical
+                lambda instance: instance.canonical,
+                when_used='unless-none',
             ),
         )
 

src/tests/test_extras_pydantic_types.py

@@ -49,6 +49,19 @@ def test_serialize_to_python(self) -> None:
 
         self.assertEqual(expected_serialized_value, actual_serialized_value)
 
+    def test_serialize_none_to_python(self) -> None:
+        # -----Arrange-----
+
+        instance = None
+
+        # -----Act-----
+
+        actual_serialized_value = self.pydantic_type_adapter.dump_python(instance)
+
+        # -----Assert-----
+
+        self.assertIsNone(actual_serialized_value)
+
     def test_serialize_to_json(self) -> None:
         # -----Arrange-----
 
@@ -67,6 +80,24 @@ def test_serialize_to_json(self) -> None:
 
         self.assertEqual(expected_serialized_value, actual_serialized_value)
 
+    def test_serialize_none_to_json(self) -> None:
+        # -----Arrange-----
+
+        instance = None
+
+        expected_serialized_value = b'null'
+        self.assertEqual(
+            expected_serialized_value, json.dumps(json.loads(expected_serialized_value)).encode()
+        )
+
+        # -----Act-----
+
+        actual_serialized_value = self.pydantic_type_adapter.dump_json(instance)
+
+        # -----Assert-----
+
+        self.assertEqual(expected_serialized_value, actual_serialized_value)
+
     def test_deserialize_from_instance(self) -> None:
         # -----Arrange-----