I was performing functional tests on my models that employed Attachment_Fu this morning and thought it would be worthwhile to share the code since it was a bit of a hassle pulling it together. Kudos to Mike Subelsky for his introduction to functional testing Attachment_Fu. It got me going in the right direction. What proved difficult once again was the multi-model controller. Once I got over that hump, I was on my way. As you can see from all the detail in the HTTP POST below, that was not an entirely easy task.

class ProductsControllerTest < Test::Unit::TestCase
...
def test_create_with_user
    num_products = Product.count
    imgdata = fixture_file_upload('/files/image.png', 'image/png')
    audiodata = fixture_file_upload('/files/sound.mp3', 'audio/mpeg')
    post :create, {:product => {
            :name => "Widget",
            :description => "A small tool-like item",
            :weight => "3",
            :price => "19.99",
            :language_id => "1"
                   },
            :image => {:uploaded_data => imgdata},
            :audio => {:uploaded_data => audiodata} ,
            :html => { :multipart => true }
          },
          {:user_id => users(:valid_active_user).id}
    assert_response :redirect
    assert_redirected_to :action => 'show'
    assert_equal num_products + 1, Product.count
  end
  ...
  end