video spec

video_spec.rb

require 'spec_helper'

describe Video do

  describe :validations do
    before { Factory(:video) }
    it { should validate_presence_of :artist, :title, :link, :user_id }
    it { should validate_uniqueness_of :link }
    it { should validate_uniqueness_of :title, :scope => :artist, :message => "and Artist are not unique. This song has already been added." }
  end

  let(:video) { Factory(:video) }

  it "should return a valid image url" do
    video.image_url.should == "http://img.youtube.com/vi/#{video.link_id}/0.jpg"
  end

  it "should return a valid display name" do
    video = Factory(:video, :artist => "Jurassic 5", :title => "The Influence")
    video.display_name.should == 'Jurassic 5 - "The Influence"'
  end

  it "should retrieve album info" do
    video.retrieve_album
    video.reload
    video.album.should satisfy do |album|
      album.title == "Quality Control"
      album.image_url == "http://userserve-ak.last.fm/serve/300x300/8589897.jpg"
    end
  end

  it "should get the most recent videos" do
    2.times { Factory(:video, :updated_at => 2.days.ago) }
    recent_videos = []
    3.times { recent_videos << Factory(:video) }
    Video.most_recent.should include(*recent_videos)
  end

  it "should get the most popular videos" do
    popular_video = Factory(:video, :play_count => 5)
    2.times { Factory(:video, :play_count => 3) }
    popular_video2 = Factory(:video, :play_count => 7)
    popular_video3 = Factory(:video, :play_count => 4)
    Video.most_popular.should include(popular_video, popular_video2, popular_video3)
  end

  it "should increment play count" do
    expect { video.increment_play_count }.to change(video, :play_count).by(1)
  end

  it "#tag_list should print out comma separated tags" do
    video.update_attribute(:tag_list, "hip hop, jazz")
    video.tag_list.should == "hip hop, jazz"
  end
end