gistfile1.rb

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

describe StoriesController do
  def mock_story(stubs={})
    @mock_story ||= mock_model(Story, stubs)
  end
  def mock_errors(stubs={})
    unless @mock_errors
      @mock_errors = mock(:errors, stubs)
      @mock_errors.should_receive(:on).with(:text).and_return("error on :text")
    end
    @mock_errors
  end
  describe "POST create" do
    describe "with invalid params" do
      it "exposes a newly created but unsaved story as @story" do
        story_mock = mock_story(:save => false)
        story_mock.should_receive(:errors).and_return(mock_errors)
        story_mock.stub!(:text).and_return("this is the text")

        Story.stub!(:new).with({'these' => 'params'}).and_return(story_mock)
        post :create, :story => {:these => 'params'}
        assigns(:story).should equal(mock_story)
      end
    end
  end
end