GuzzleHttp\Tests\ClientTest::testCanSendMagicAsyncRequests PHP Метод

    public function testCanSendMagicAsyncRequests()
    {
        $client = new Client();
        Server::flush();
        Server::enqueue([new Response(200, ['Content-Length' => 2], 'hi')]);
        $p = $client->getAsync(Server::$url, ['query' => ['test' => 'foo']]);
        $this->assertInstanceOf(PromiseInterface::class, $p);
        $this->assertEquals(200, $p->wait()->getStatusCode());
        $received = Server::received(true);
        $this->assertCount(1, $received);
        $this->assertEquals('test=foo', $received[0]->getUri()->getQuery());
    }