# File lib/deltacloud/drivers/mock/mock_driver.rb, line 236
  def storage_volumes(credentials, opts=nil)
    check_credentials( credentials )
    volumes = []
    Dir[ "#{@storage_root}/storage_volumes/*.yml" ].each do |storage_volume_file|
      storage_volume = YAML.load( File.read( storage_volume_file ) )
      if ( storage_volume[:owner_id] == credentials.user )
        storage_volume[:id] = File.basename( storage_volume_file, ".yml" )
        volumes << StorageVolume.new( storage_volume )
      end
    end
    volumes = filter_on( volumes, :id, opts )
    volumes
  end