Refactor spec

spec/features/projects/wiki/user_updates_wiki_page_spec.rb

@@ -2,13 +2,13 @@ require 'spec_helper'
 
 feature 'Projects > Wiki > User updates wiki page', feature: true do
   let(:user) { create(:user) }
+  let!(:wiki_page) { WikiPages::CreateService.new(project, user, title: 'home', content: 'Home page').execute }
 
   background do
     project.team << [user, :master]
     login_as(user)
 
     visit namespace_project_path(project.namespace, project)
-    @wiki_page = WikiPages::CreateService.new(project, user, title: 'home', content: 'Home page').execute
     click_link 'Wiki'
   end
 
@@ -29,7 +29,7 @@ feature 'Projects > Wiki > User updates wiki page', feature: true do
     scenario 'page has been updated since the user opened the edit page' do
       click_link 'Edit'
 
-      @wiki_page.update("Update")
+      wiki_page.update('Update')
 
       click_button 'Save changes'