fix: attributes with none type are excluded from Schema generation

Author: azmeuk

doc/changelog.rst

@@ -1,6 +1,13 @@
 Changelog
 =========
 
+[0.4.3] - Unreleased
+--------------------
+
+Fixed
+^^^^^
+- Attributes with ``None`` type are excluded from Schema generation.
+
 [0.4.2] - 2025-08-05
 --------------------
 

scim2_models/resources/resource.py

@@ -412,6 +412,7 @@ def _model_to_schema(model: type[BaseModel]) -> "Schema":
         _model_attribute_to_scim_attribute(model, attribute_name)
         for attribute_name in field_infos
         if attribute_name != "schemas"
+        and model.get_field_root_type(attribute_name) is not type(None)
     ]
     schema = Schema(
         name=model.__name__,

tests/test_schema.py

@@ -1,3 +1,5 @@
+from typing import Optional
+
 import pytest
 from pydantic import ValidationError
 
@@ -6,6 +8,8 @@
 from scim2_models import Returned
 from scim2_models import Schema
 from scim2_models import Uniqueness
+from scim2_models.resources.resource import Resource
+from scim2_models.resources.resource import _model_to_schema
 
 
 def test_group_schema(load_sample):
@@ -123,3 +127,22 @@ def test_get_attribute_attribute(load_sample):
 
     attribute["value"].mutability = Mutability.read_write
     assert attribute.sub_attributes[0].mutability == Mutability.read_write
+
+
+def test_model_to_schema_excludes_none_type_attributes():
+    """Test that _model_to_schema excludes attributes with None type from schema."""
+
+    class TestResource(Resource):
+        schemas: list[str] = ["urn:test:schema"]
+        valid_attr: Optional[str] = None
+        none_attr: None = None
+
+    schema = _model_to_schema(TestResource)
+
+    assert schema.id == "urn:test:schema"
+    assert schema.name == "TestResource"
+
+    attribute_names = [attr.name for attr in schema.attributes]
+
+    assert "validAttr" in attribute_names
+    assert "noneAttr" not in attribute_names