You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: test_mode_test.rb
    path of file: ./repos/geocoder/test/unit
    
    the code of the file until where you have to start completion: # encoding: utf-8
require 'test_helper'

class TestModeTest < GeocoderTestCase

  def setup
    @_original_l
    
  def test_search_with_custom_attributes
    custom_attributes = mock_attributes.merge(:custom => 'NY, NY')
    Geocoder::Lookup::Test.add_stub("New York, NY", [custom_attributes])

    result = Geocoder.search("New York, NY").first

    assert_equal 'NY, NY', result.custom
  end