Refactor spec clean up

spec/integration/tracks_spec.rb

@@ -35,8 +35,4 @@ feature 'Tracks' do
     page.should have_xpath "//audio[@src='#{sound_path(track.sound)}']"
     visit find('audio')[:src]
   end
-
-  after do
-    `rm -f #{Rails.root}/data/sounds/*`
-  end
 end

spec/models/sound_spec.rb

@@ -39,8 +39,4 @@ describe Sound do
       sound.mime_type.should == 'audio/mpeg'
     end
   end
-
-  after do
-    `rm -f #{Rails.root}/data/sounds/*`
-  end
 end

spec/spec_helper.rb

@@ -10,5 +10,8 @@ Spork.prefork do
   RSpec.configure do |config|
     config.mock_with :rspec
     config.use_transactional_fixtures = true
+    config.after(:all) do
+      `rm -f #{Rails.root}/data/sounds/*`
+    end
   end
 end