GuzzleHttp\Test\Handler\StreamHandlerTest::testInvokesOnStatsOnError PHP Метод

    public function testInvokesOnStatsOnError()
    {
        $req = new Psr7\Request('GET', 'http://127.0.0.1:123');
        $gotStats = null;
        $handler = new StreamHandler();
        $promise = $handler($req, ['connect_timeout' => 0.001, 'timeout' => 0.001, 'on_stats' => function (TransferStats $stats) use(&$gotStats) {
            $gotStats = $stats;
        }]);
        $promise->wait(false);
        $this->assertFalse($gotStats->hasResponse());
        $this->assertEquals('http://127.0.0.1:123', (string) $gotStats->getEffectiveUri());
        $this->assertEquals('http://127.0.0.1:123', (string) $gotStats->getRequest()->getUri());
        $this->assertInternalType('float', $gotStats->getTransferTime());
        $this->assertInstanceOf(ConnectException::class, $gotStats->getHandlerErrorData());
    }