Tests for private snippet fixed

app/views/snippets/show.html.haml

@@ -2,7 +2,7 @@
   - if @snippet.private?
     %i.icon-lock
   - else
-    %i.icon-globe.public-snippet
+    %i.icon-globe
 
   = @snippet.title
   %small= @snippet.file_name

features/steps/snippets/snippets.rb

@@ -51,7 +51,7 @@ class Snippets < Spinach::FeatureSteps
   end
 
   Then 'I should see "Personal snippet one" public' do
-    page.should have_selector(:xpath, "//i[@class='public-snippet']")
+    page.should have_no_xpath("//i[@class='public-snippet']")
   end
 
   And 'I visit snippet page "Personal snippet one"' do