responce_factory.rb

factory :search_results_resps, class: 'OpenStruct' do
  variant_id { variant.id }
  product_name { variant.product.name }
  product_brand_name { variant.product.brand_name.to_s }
  flavor { variant.flavor.to_s }
  warehouse_category { variant.product.warehouse_category.to_s }
  skip_container { variant.skip_container }

  transient do
    variant nil
  end
end
# In test example
FactoryBot.attributes_for(:search_results_resps, variant: product.variants.first)