private InteractionEvent mockUserEvent(String handle, String kind, String origin, float scale) {
   InteractionEvent e =
       new InteractionEvent(
           InteractionEvent.Kind.MANIPULATION,
           kind,
           handle,
           origin,
           scale * ContextCore.getCommonContextScaling().getLandmark());
   e.getInterestContribution();
   return e;
 }
 public IInteractionElement getElement(String handle, String kind) {
   IInteractionElement node = context.addEvent(mockSelection(handle, kind, source));
   ContextCorePlugin.getContextManager()
       .processInteractionEvent(
           mockUserEvent(
               handle,
               kind,
               source,
               (1 / ContextCore.getCommonContextScaling().getLandmark()) * -2),
           true);
   return node;
 }