# File lib/deltacloud/drivers/mock/mock_driver.rb, line 373
  def blob_data(credentials, bucket_id, blob_id, opts = nil)
    check_credentials(credentials)
    blob=nil
    Dir[ "#{@storage_root}/buckets/blobs/*.yml" ].each do |blob_file|
      if File.basename(blob_file, ".yml") == blob_id
        blob = YAML.load(File.read(blob_file))
        blob[:content].each {|part| yield part}
      end
    end
  end