yielding a mock to a block

gistfile1.rb

should "configure the Application with a consumer key and secret" do
  credentials = {'consumer_key' => 'skeleton', 'consumer_secret' => 'closet'}

  config = mock()
  config.expects(:consumer_key=).with('skeleton').once
  config.expects(:consumer_secret=).with('closet').once

  service = mock()
  service.stubs(:configure).yields(config)

  Blah.store_consumer(credentials, service)
end