anchor.diff:      });
   
       shutdownVM_simple;
  +    destroyVM_simple;
     '';
   
     headless = ''
  
positive.code:     $machine->sendKeys("ctrl-q");
      $machine->sleep(5);
      $machine->screenshot("gui_manager_stopped");
    '';
  
    simple-cli = ''
  
negative.code:     waitForStartup_headless;
      waitForVMBoot_headless;
      shutdownVM_headless;
      destroyVM_headless;
    '';
  
    host-usb-permissions = ''
  