require "cases/helper"
require 'models/topic'
require 'models/reply'

class I18nValidationTest < ActiveRecord::TestCase
  def setup
    reset_callbacks Topic
    @topic = Topic.new
    @old_load_path, @old_backend = I18n.load_path, I18n.backend
    I18n.load_path.clear
    I18n.backend = I18n::Backend::Simple.new
    I18n.backend.store_translations('en', :activerecord => {:errors => {:messages => {:custom => nil}}})
  end

  def teardown
    reset_callbacks Topic
    I18n.load_path.replace @old_load_path
    I18n.backend = @old_backend
  end

  def unique_topic
    @unique ||= Topic.create :title => 'unique!'
  end

  def replied_topic
    @replied_topic ||= begin
      topic = Topic.create(:title => "topic")
      topic.replies << Reply.new
      topic
    end
  end

  def reset_callbacks(*models)
    models.each do |model|
      model.instance_variable_set("@validate_callbacks", ActiveSupport::Callbacks::CallbackChain.new)
      model.instance_variable_set("@validate_on_create_callbacks", ActiveSupport::Callbacks::CallbackChain.new)
      model.instance_variable_set("@validate_on_update_callbacks", ActiveSupport::Callbacks::CallbackChain.new)
    end
  end

  # validates_uniqueness_of w/ mocha

  def test_validates_uniqueness_of_generates_message
    Topic.validates_uniqueness_of :title
    @topic.title = unique_topic.title
    @topic.errors.expects(:generate_message).with(:title, :taken, {:default => nil, :value => 'unique!'})
    @topic.valid?
  end

  def test_validates_uniqueness_of_generates_message_with_custom_default_message
    Topic.validates_uniqueness_of :title, :message => 'custom'
    @topic.title = unique_topic.title
    @topic.errors.expects(:generate_message).with(:title, :taken, {:default => 'custom', :value => 'unique!'})
    @topic.valid?
  end

  # validates_associated w/ mocha

  def test_validates_associated_generates_message
    Topic.validates_associated :replies
    replied_topic.errors.expects(:generate_message).with(:replies, :invalid, {:value => replied_topic.replies, :default => nil})
    replied_topic.valid?
  end

  def test_validates_associated_generates_message_with_custom_default_message
    Topic.validates_associated :replies
    replied_topic.errors.expects(:generate_message).with(:replies, :invalid, {:value => replied_topic.replies, :default => nil})
    replied_topic.valid?
  end

  # validates_associated w/o mocha

  def test_validates_associated_finds_custom_model_key_translation
    I18n.backend.store_translations 'en', :activerecord => {:errors => {:models => {:topic => {:attributes => {:replies => {:invalid => 'custom message'}}}}}}
    I18n.backend.store_translations 'en', :activerecord => {:errors => {:messages => {:invalid => 'global message'}}}

    Topic.validates_associated :replies
    replied_topic.valid?
    assert_equal ['custom message'], replied_topic.errors[:replies]
  end

  def test_validates_associated_finds_global_default_translation
    I18n.backend.store_translations 'en', :activerecord => {:errors => {:messages => {:invalid => 'global message'}}}

    Topic.validates_associated :replies
    replied_topic.valid?
    assert_equal ['global message'], replied_topic.errors[:replies]
  end
end