active_model_serializers/test/active_model_serializers/fragment_cache_test.rb

require 'test_helper'
module ActiveModelSerializers
  class FragmentCacheTest < ActiveSupport::TestCase
    def setup
      super
      @spam            = Spam::UnrelatedLink.new(id: 'spam-id-1')
      @author          = Author.new(name: 'Joao M. D. Moura')
      @role            = Role.new(name: 'Great Author', description: nil)
      @role.author     = [@author]
      @role_serializer = RoleSerializer.new(@role)
      @spam_serializer = Spam::UnrelatedLinkSerializer.new(@spam)
      adapter          = ActiveModelSerializers::Adapter.configured_adapter
      @role_hash       = FragmentCache.new(adapter.new(@role_serializer), @role_serializer, {})
      @spam_hash       = FragmentCache.new(adapter.new(@spam_serializer), @spam_serializer, {})
    end

    def test_fragment_fetch_with_virtual_attributes
      expected_result = {
        id: @role.id,
        description: @role.description,
        slug: "#{@role.name}-#{@role.id}",
        name: @role.name
      }
      assert_equal(@role_hash.fetch, expected_result)
    end

    def test_fragment_fetch_with_namespaced_object
      expected_result = {
        id: @spam.id
      }
      assert_equal(@spam_hash.fetch, expected_result)
    end
  end
end