startVulcain example

$stream = StreamWrapper::createResource($response, $client);

        $this->assertSame('Here the body', stream_get_contents($stream));
        rewind($stream);
        $this->assertSame('Here the body', stream_get_contents($stream));
    }

    public function testHttp2PushVulcain()
    {
        $client = $this->getHttpClient(__FUNCTION__);
        self::startVulcain($client);
        $logger = new TestLogger();
        $client->setLogger($logger);

        $responseAsArray = $client->request('GET', 'https://127.0.0.1:3000/json', [
            'headers' => [
                'Preload' => '/documents/*/id',
            ],
        ])->toArray();

        foreach ($responseAsArray['documents'] as $document) {
            $client->request('GET', 'https://127.0.0.1:3000'.$document['id'])->toArray();
        }