@Before
 @Override
 public void setUp() throws Exception {
   super.setUp();
   executionContext = new ExecutionContext();
   Execution execution = getComponentManager().getInstance(Execution.class);
   execution.setContext(executionContext);
   Utils.setComponentManager(getComponentManager());
   legacyImpl = new XWikiRightServiceImpl();
   cachingImpl = new XWikiCachingRightService();
 }