[rspec-users] errors while testing resource controller using rpec

[Deepak Jois]

I am testing a resource called venue in this piece of code (generated
using script/rspec_resource)

====================
context "Requesting /venues using POST" do
  controller_name :venues

  setup do
    @mock_venue = mock('Venue')
    @mock_venue.stub!(:save).and_return(true)
    @mock_venue.stub!(:to_param).and_return(1)
    Venue.stub!(:new).and_return(@mock_venue)
  end

  def do_post
    post :create, :venue => {:name => 'Venue'}
  end

  specify "should create a new venue" do
    Venue.should_receive(:new).with({'name' => 'Venue'}).and_return(@mock_venue)
    do_post
  end
end
==========================

and the test fails as
===============
TypeError in 'Requesting /venues using POST should create a new venue'
can't convert Fixnum into String
(eval):19:in `venue_url'
/home/deepak/personalcode/worlds/config/../app/controllers/venues_controller.rb:43:in
`create'
/home/deepak/personalcode/worlds/config/../app/controllers/venues_controller.rb:40:in
`create'
./spec/controllers/venues_controller_spec.rb:242:in `do_post'
./spec/controllers/venues_controller_spec.rb:247:
================

the relevant portion of the controller code is

================
 # POST /venues
  # POST /venues.xml
  def create
    @venue = Venue.new(params[:venue])

    respond_to do |format|
      if @venue.save
        flash[:notice] = 'Venue was successfully created.'
        format.html { redirect_to venue_url(@venue) }
        format.xml  { head :created, :location => venue_url(@venue) }
      else
        format.html { render :action => "new" }
        format.xml  { render :xml => @venue.errors.to_xml }
      end
    end
  end
==============

however, If I change the mock stub to return a string, the spec passes fine.

@mock_venue.stub!(:to_param).and_return("1")  # note the string

There is something happening in the generated code venue_url which I
am not aware of, which is causing the test to fail on the mock object.

Is this a bug in the generated code.. or am I doing something wrong?

Thanks
Deepak