require 'spec_helper'

describe Sprockets::Plugin do
  after :each do
    Sprockets::Plugin.send :class_variable_set, :@@plugins, nil
  end
  
  describe '#append_plugin_paths' do
    it 'adds paths from plugins to environments' do
      dir_1 = @sandbox.directory 'plugin_1/assets'
      dir_2 = @sandbox.directory 'plugin_2/assets'
      dir_3 = @sandbox.directory 'plugin_3/assets'
      
      plugin_1 = Class.new Sprockets::Plugin
      plugin_1.append_path dir_1
      plugin_2 = Class.new Sprockets::Plugin
      plugin_2.append_path dir_2
      plugin_3 = Class.new Sprockets::Plugin
      plugin_3.append_path dir_3
      
      env = Sprockets::Environment.new
      env.append_plugin_paths
      env.paths.should == [dir_1, dir_2, dir_3].map(&:to_s)
    end
  
    it 'does not add duplicate paths' do
      dir_1 = @sandbox.directory 'plugin_1/assets'
      dir_2 = @sandbox.directory 'plugin_2/assets'
      dir_3 = @sandbox.directory 'plugin_3/assets'
      
      plugin_1 = Class.new Sprockets::Plugin
      plugin_1.append_path dir_1
      
      env = Sprockets::Environment.new
      env.append_plugin_paths
      env.paths.should == [dir_1].map(&:to_s)
      
      plugin_2 = Class.new Sprockets::Plugin
      plugin_2.append_path dir_2
      plugin_3 = Class.new Sprockets::Plugin
      plugin_3.append_path dir_3
      
      env.append_plugin_paths
      env.paths.should == [dir_1, dir_2, dir_3].map(&:to_s)
    end
  end
  
  describe '.append_path' do
    it 'adds paths' do
      dir_1 = @sandbox.directory 'plugin/assets/images'
      dir_2 = @sandbox.directory 'plugin/assets/javascripts'
      dir_3 = @sandbox.directory 'plugin/assets/stylesheets'
      
      plugin = Class.new Sprockets::Plugin
      plugin.append_path dir_1
      plugin.append_path dir_2
      plugin.append_path dir_3
      plugin.paths.should == [dir_1, dir_2, dir_3].map(&:to_s)
    end
    
    it 'adds the paths relative to the plugin root' do
      dir_1 = @sandbox.directory 'plugin/assets/images'
      dir_2 = @sandbox.directory 'plugin/assets/javascripts'
      dir_3 = @sandbox.directory 'plugin/assets/stylesheets'
      
      plugin = Class.new Sprockets::Plugin
      plugin.root @sandbox.join 'plugin'
      plugin.append_path 'assets/images'
      plugin.append_path 'assets/javascripts'
      plugin.append_path 'assets/stylesheets'
      plugin.paths.should == [dir_1, dir_2, dir_3].map(&:to_s)
    end
    
    it 'only adds existing paths' do
      dir_1 = @sandbox.directory 'plugin/assets/images'
      dir_2 = @sandbox.directory 'plugin/assets/javascripts'
      dir_3 = @sandbox.join 'plugin/assets/stylesheets'
      
      plugin = Class.new Sprockets::Plugin
      plugin.append_path dir_1
      plugin.append_path dir_2
      plugin.append_path dir_3
      plugin.paths.should == [dir_1, dir_2].map(&:to_s)
    end
  end
  
  describe '.appends_paths' do
    it 'adds multiple paths at once' do
      dir_1 = @sandbox.directory 'plugin/assets/images'
      dir_2 = @sandbox.directory 'plugin/assets/javascripts'
      dir_3 = @sandbox.directory 'plugin/assets/stylesheets'
      
      plugin = Class.new Sprockets::Plugin
      plugin.append_path dir_1, dir_2 ,dir_3
      plugin.paths.should == [dir_1, dir_2, dir_3].map(&:to_s)
    end
  end
  
  describe '.append_paths_in' do
    it 'adds paths within the given path' do
      assets_dir = @sandbox.directory 'plugin/assets'
      dir_1      = assets_dir.directory 'images'
      dir_2      = assets_dir.directory 'javascripts'
      dir_3      = assets_dir.directory 'stylesheets'
      
      plugin = Class.new Sprockets::Plugin
      plugin.append_paths_in assets_dir
      plugin.paths.should == [dir_1, dir_2, dir_3].map(&:to_s)
    end
  end
  
  describe '.root' do
    it 'converts the given path to a Pathname object' do
      plugin_path = @sandbox.join 'plugin'
      plugin = Class.new Sprockets::Plugin
      plugin.root plugin_path.to_s
      plugin.root.should be_an_instance_of(Pathname)
      plugin.root.should == plugin_path
    end
  end
  
  describe '.plugins' do
    it 'returns all of the plugins' do
      plugin_1 = Class.new Sprockets::Plugin
      plugin_2 = Class.new Sprockets::Plugin
      plugin_3 = Class.new Sprockets::Plugin
      Sprockets::Plugin.plugins.should == [ plugin_1, plugin_2, plugin_3 ]
    end
  end
end