Fixed protected branches and file edit

spec/support/stubbed_repository.rb

@@ -1,6 +1,17 @@
+require "repository"
+require "project"
+
 # Stubs out all Git repository access done by models so that specs can run
 # against fake repositories without Grit complaining that they don't exist.
 class Project
+  def repository
+    if path == "empty" || !path
+      nil
+    else
+      GitLabTestRepo.new(path_with_namespace)
+    end
+  end
+
   def satellite
     FakeSatellite.new
   end
@@ -16,7 +27,7 @@ class Project
   end
 end
 
-class Repository
+class GitLabTestRepo < Repository
   def repo
     @repo ||= Grit::Repo.new(Rails.root.join('tmp', 'repositories', 'gitlabhq'))
   end