public function testGroupStack()
{
$log = new ArrayList();
$listener = function (GroupEvent $event) use($log) {
$log->add($event->getName() . ' ' . $event->getGroup()->type);
};
$parser = new Parser();
$parser->getContext()->addListener(Context::EVENT_GROUP_ENTER, $listener);
$parser->getContext()->addListener(Context::EVENT_GROUP_LEAVE, $listener);
$parser->parse($this->getCode());
$this->assertEquals(['context.group_enter block', 'context.group_leave block', 'context.group_enter block', 'context.group_leave block', 'context.group_enter call', 'context.group_leave call', 'context.group_enter block', 'context.group_leave block', 'context.group_enter block', 'context.group_enter group', 'context.group_leave group', 'context.group_leave block'], $log->toArray());
}
