# -*- encoding : utf-8 -*-
require 'active_record/test_helper'

class ActiveRecord::PolymorphicAssociationTest < Test::Unit::TestCase
  def setup
    @user = User.create :name => 'csdn', :email => 'test@csdn.com'
  end

  def test_should_get_cache_when_use_polymorphic_association
    image = @user.images.create

    @user.write_second_level_cache
    image.clear_association_cache
    no_connection do
      assert_equal @user, image.imagable
    end
  end

  def test_should_write_polymorphic_association_cache
    image = @user.images.create
    @user.expire_second_level_cache
    assert_nil User.read_second_level_cache(@user.id)
    assert_equal @user, image.imagable
  end
end