Let activerecord handle the picture upload in factories

spec/factories/conferences.rb

@@ -46,10 +46,10 @@ FactoryGirl.define do
         create(:question, conferences: [conference])
 
         # Logo...
-        uploader = PictureUploader.new(conference, :picture)
+        File.open("spec/support/logos/#{1 + rand(13)}.png") do |file|
-        File.open('app/assets/images/rails.png') { |f| uploader.store!(f) }
+          conference.picture = file
-        conference.logo_file_name = 'rails.png'
+        end
-        conference.save
+        conference.save!
       end
     end
   end

spec/factories/sponsors.rb

@@ -9,11 +9,10 @@ FactoryGirl.define do
     sponsorship_level
 
     after(:create) do |sponsor|
-      logo = "#{1 + rand(13)}.png"
+      File.open("spec/support/logos/#{1 + rand(13)}.png") do |file|
-      uploader = PictureUploader.new(sponsor, :picture)
+        sponsor.picture = file
-      File.open("spec/support/logos/#{logo}") { |f| uploader.store!(f) }
+      end
-      sponsor.logo_file_name = logo.to_s
+      sponsor.save!
-      sponsor.save
     end
   end
 end