Rails - Jul 2005 - Testing scaffolding controllers

I created a model and controller using scaffolding, and wrote some
unit tests that work fine.  Now I want to do functional tests for the
controllers, and it turns out scaffolding is nice enough to write them
for me.  But the test_create test fails, and I''ve got no clue why. 
Here''s the test code:

  def test_create
    num_products = Product.count

    post :create, :product => {}

    assert_response :redirect
    assert_redirected_to :action => ''list''

    assert_equal num_products + 1, Product.count
  end


And the error:
     product_controller_test.rb:55:in `test_create'']:
Expected response to be a <:redirect>, but was <200>



So obviously the test checks to make sure it gets a redirect...but
it''s getting a 200 instead.  I''ve got no clue why this is. 
This is
brand new scaffolding code, which I thought should work out of the
box.  Can anyone help me out?  Thanks