old_contents: from django.core.urlresolvers import resolve
  import pytest
  from xpserver_web.views import hello_world
  
  
  def test_root_resolves_to_hello_world():
      found = resolve('/web/')
      assert found.func == hello_world
  
  
new_contents: from django.core.urlresolvers import resolve
  from xpserver_web.views import hello_world
  
  
  def test_root_resolves_to_hello_world():
      found = resolve('/')
      assert found.func == hello_world
  
  
subject: Fix root test