Factory for Album model

albums.rb

Factory.define :album do |album|
  album.name 'Album Name'
  album.description 'Album Description'
  album.active true
  album.association :cover_image, :factory => :image
end

albums_controller_spec.rb

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

describe AlbumsController do
  render_views

  let(:album) { Factory(:album) }

  it "update action should render edit template when model is invalid" do
    admin_login
    put :update, :id => album, :album => Factory.attributes_for(:album, :name => '')
    response.should render_template(:edit)
  end
end