feat: implement Attribute.get_attribute

doc/changelog.rst

@@ -1,6 +1,12 @@
 Changelog
 =========
 
+[0.2.12] - Unreleased
+---------------------
+Added
+^^^^^
+- Implement :meth:`Attribute.get_attribute <scim2_models.Attribute.get_attribute>`.
+
 [0.2.11] - 2024-12-08
 ---------------------
 Added

scim2_models/rfc7643/schema.py

@@ -238,6 +238,13 @@ def to_python(self) -> Optional[tuple[Any, Field]]:
 
         return annotation, field
 
+    def get_attribute(self, attribute_name: str) -> Optional["Attribute"]:
+        """Find an attribute by its name."""
+        for sub_attribute in self.sub_attributes or []:
+            if sub_attribute.name == attribute_name:
+                return sub_attribute
+        return None
+
 
 class Schema(Resource):
     schemas: Annotated[list[str], Required.true] = [

tests/test_schema.py

@@ -87,7 +87,7 @@ def test_uri_ids():
         Schema(id="invalid\nuri")
 
 
-def test_get_attribute(load_sample):
+def test_get_schema_attribute(load_sample):
     """Test the Schema.get_attribute method."""
     payload = load_sample("rfc7643-8.7.1-schema-user.json")
     schema = Schema.model_validate(payload)
@@ -98,3 +98,18 @@ def test_get_attribute(load_sample):
     schema.get_attribute("userName").mutability = Mutability.read_only
 
     assert schema.attributes[0].mutability == Mutability.read_only
+
+
+def test_get_attribute_attribute(load_sample):
+    """Test the Schema.get_attribute method."""
+    payload = load_sample("rfc7643-8.7.1-schema-group.json")
+    schema = Schema.model_validate(payload)
+    attribute = schema.get_attribute("members")
+
+    assert attribute.get_attribute("invalid") is None
+
+    assert attribute.sub_attributes[0].name == "value"
+    assert attribute.sub_attributes[0].mutability == Mutability.immutable
+    attribute.get_attribute("value").mutability = Mutability.read_only
+
+    assert attribute.sub_attributes[0].mutability == Mutability.read_only