✨ add list field convenience accessor for object field (#225)

Author: sebastianMindee

lib/mindee/parsing/v2/field/object_field.rb

@@ -85,6 +85,17 @@ def multi_str
           def get_simple_field(key)
             @fields.get_simple_field(key)
           end
+
+          # Get a field by key and ensure it is a ListField.
+          # @param key [String] Field key to retrieve.
+          # @return [ListField] The ListField.
+          # @raise [TypeError] If the field is not a ListField.
+          def get_list_field(key)
+            field = @fields.get_list_field(key)
+            raise TypeError, "Field #{key} is not a ListField" unless field.is_a?(ListField)
+
+            field
+          end
         end
       end
     end

sig/mindee/parsing/v2/field/object_field.rbs

@@ -8,6 +8,9 @@ module Mindee
         class ObjectField < BaseField
           attr_reader fields: InferenceFields
           def initialize: (Hash[String | Symbol, untyped], ?Integer) -> void
+
+          def get_list_field: (String) -> ListField
+
           def get_simple_field: (String) -> SimpleField
           def multi_str: -> String
           def single_str: -> String

spec/data

@@ -5,7 +5,7 @@
 
 def assert_local_response(local_response)
   dummy_secret_key = 'ogNjY44MhvKPGTtVsI8zG82JqWQa68woYQH'
-  signature = '1df388c992d87897fe61dfc56c444c58fc3c7369c31e2b5fd20d867695e93e85'
+  signature = 'f390d9f7f57ac04f47b6309d8a40236b0182610804fc20e91b1f6028aaca07a7'
   expect(local_response.file).to_not be(nil)
   expect(local_response.valid_hmac_signature?(
            dummy_secret_key, 'invalid signature'

spec/v2/input/local_response_v2_spec.rb

@@ -149,9 +149,11 @@ def load_v2_inference(resource_path)
       expect(fields['field_object']).to be_a(object_field)
 
       field_object = fields.get_object_field('field_object')
+      expect(field_object.get_list_field('sub_object_list')).to be_a(list_field)
       lvl1 = field_object.fields
-
       expect(lvl1['sub_object_list']).to be_a(list_field)
+      expect(lvl1['sub_object_list'].items).not_to be_empty
+      expect(lvl1['sub_object_list'].items[0]).to be_a(object_field)
       expect(lvl1['sub_object_object']).to be_a(object_field)
 
       sub_object_object = lvl1.get_object_field('sub_object_object')