public function testOffMulti()
{
$closure = function () {
};
$closure1 = function () {
};
$this->event->on(array('a', 'b'), $closure);
$this->event->addListener(array('a', 'b'), $closure1);
$this->assertEquals(array($closure, $closure1), $this->event->listeners('a'));
$this->assertEquals(array($closure, $closure1), $this->event->listeners('b'));
$this->event->off(array('a', 'b'), $closure);
$this->assertEquals(array(1 => $closure1), $this->event->listeners('a'));
$this->assertEquals(array(1 => $closure1), $this->event->listeners('b'));
}