Check for the image in the basic scenario.

features/rails.feature

@@ -30,4 +30,4 @@ Feature: Running paperclip in a Rails app
     And I attach the file "test/fixtures/5k.png" to "user_avatar"
     And I press "Submit"
     Then I should see "Name: something"
-    And I save and open the page
+    And I should see an image with a path of "/system/avatars/1/original/5k.png"

features/step_definitions/html_steps.rb

+Then %r{I should see an image with a path of "([^"]*)"} do |path|
+  page.should have_css("img[src^='#{path}']")
+end

features/support/rails.rb

@@ -4,7 +4,5 @@ APP_NAME         = 'testapp'.freeze
 CUC_RAILS_ROOT   = File.join(TEMP_ROOT, APP_NAME).freeze
 
 Before do
-  FileUtils.rm_rf(TEMP_ROOT)
-  FileUtils.mkdir_p(CUC_RAILS_ROOT)
   Dir.chdir(PROJECT_ROOT)
 end