Dont init repo on every create(:repo)

spec/models/commit_spec.rb

@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe Commit do
-  let(:commit) { create(:project).repository.commit }
+  let(:commit) { create(:project_with_code).repository.commit }
 
 
   describe '#title' do

spec/models/gollum_wiki_spec.rb

@@ -81,7 +81,7 @@ describe GollumWiki do
     end
 
     it "raises CouldNotCreateWikiError if it can't create the wiki repository" do
-      Gitlab::Shell.any_instance.stub(:add_repository).and_return(false)
+      GollumWiki.any_instance.stub(:init_repo).and_return(false)
       expect { GollumWiki.new(project, user).wiki }.to raise_exception(GollumWiki::CouldNotCreateWikiError)
     end
   end