public function __destruct()
{
// Shift off anything else that's on the stack. This can happen if something throws
// an exception that causes a premature TestSession::__destruct() call
while (Controller::has_curr() && Controller::curr() !== $this->controller) {
Controller::curr()->popCurrent();
}
if (Controller::has_curr()) {
$this->controller->popCurrent();
}
}
