fix for public snippet

app/controllers/snippets_controller.rb

@@ -9,7 +9,7 @@ class SnippetsController < ApplicationController
 
   before_filter :set_title
 
-  skip_before_filter :authenticate_user!, only: [:index, :user_index]
+  skip_before_filter :authenticate_user!, only: [:index, :user_index, :show]
 
   respond_to :html
 

features/snippets/public_snippets.feature

+Feature: Public snippets
+  Scenario: Unauthenticated user should see public snippets
+    Given There is public "Personal snippet one" snippet
+    And I visit snippet page "Personal snippet one"
+    Then I should see snippet "Personal snippet one"

features/steps/shared/snippet.rb

@@ -51,4 +51,13 @@ module SharedSnippet
            visibility_level: Snippet::PUBLIC,
            author: current_user)
   end
+
+  step 'There is public "Personal snippet one" snippet' do
+    create(:personal_snippet,
+           title: "Personal snippet one",
+           content: "Test content",
+           file_name: "snippet.rb",
+           visibility_level: Snippet::PUBLIC,
+           author: create(:user))
+  end
 end

features/steps/snippets/public_snippets.rb

+class Spinach::Features::PublicSnippets < Spinach::FeatureSteps
+  include SharedAuthentication
+  include SharedPaths
+  include SharedSnippet
+
+  step 'I should see snippet "Personal snippet one"' do
+    page.should have_no_xpath("//i[@class='public-snippet']")
+  end
+
+  step 'I visit snippet page "Personal snippet one"' do
+    visit snippet_path(snippet)
+  end
+
+  def snippet
+    @snippet ||= PersonalSnippet.find_by!(title: "Personal snippet one")
+  end
+end