React\HttpClient\Request::close PHP Method

    public function close(\Exception $error = null)
    {
        if (self::STATE_END <= $this->state) {
            return;
        }
        $this->state = self::STATE_END;
        if ($this->stream) {
            $this->stream->close();
        }
        $this->emit('end', array($error, $this->response, $this));
        $this->removeAllListeners();
    }

 /** @test */
 public function requestShouldRemoveAllListenerAfterClosed()
 {
     $requestData = new RequestData('GET', 'http://www.example.com');
     $request = new Request($this->connector, $requestData);
     $request->on('end', function () {
     });
     $this->assertCount(1, $request->listeners('end'));
     $request->close();
     $this->assertCount(0, $request->listeners('end'));
 }