require File.dirname(__FILE__) + '/../test_helper'

class EpisodeTest < Test::Unit::TestCase

  def test_permalink
    assert_equal 'buffalo-soldier', create_with_callback(:before_create).permalink
    assert_equal 'alices-restaurant', create_with_callback(:before_create, :title => "Alice's restaurant").permalink
  end

  def test_to_param
    episode = create_with_callback(:before_create)
    assert_equal "buffalo-soldier", episode.to_param
  end

  def test_should_set_transcript_published_at_on_save
    e = create_with_callback(:before_save)
    assert_nil e.transcript_published_at
    
    e.has_transcript = true
    e.send(:before_save)
    assert_not_nil e.transcript_published_at, "Transcript publish date was not filled in"
    assert_kind_of Time, e.transcript_published_at
  end

  def test_should_set_transcript_published_at_on_create
    e = create_episode(:has_transcript => true)
    assert_not_nil e.transcript_published_at, "Transcript publish date was not filled in"
    assert_kind_of Time, e.transcript_published_at
  end

  def test_should_not_reset_transcript_published_if_already_present
    e = create_episode(:has_transcript => true)
    assert_not_nil e.transcript_published_at, "Transcript publish date was not filled in"
    assert_kind_of Time, e.transcript_published_at
    
    original_time = e.transcript_published_at
    
    e.update_attribute(:title, "Crunchy Bacon")
    e.reload
    assert_equal original_time.to_i, e.transcript_published_at.to_i
  end

  def test_should_not_recreate_permalink
    e = create_episode
    assert_equal "buffalo-soldier", e.permalink
    
    e.update_attribute :title, "Buffalo Bill"
    e.reload
    assert_equal 'buffalo-soldier', e.permalink
  end

  def test_should_not_allow_same_title_twice
    e  = create_episode
    assert e.valid?, e.errors.full_messages.join

    e2 = create_episode
    deny e2.valid?, "E2 was valid but should not be"
    assert_not_nil e2.errors.on(:title), "E2 had no errors on :title"
  end
  
private
  
  def create_episode(options={})
    Episode.create({:title => "Buffalo Soldier"}.merge(options))
  end

  ##
  # A faster fake create where a specific callback is executed.
  # 
  # No DB access needed.
  
  def create_with_callback(callback_method_name=nil, options={})
    episode = Episode.new({:title => "Buffalo Soldier"}.merge(options))
    episode.send(callback_method_name)
    episode
  end
  
end