GuzzleHttp\Tests\ClientTest::testRequestSendsWithSync PHP Method

    public function testRequestSendsWithSync()
    {
        $mock = new MockHandler([new Response()]);
        $client = new Client(['handler' => $mock]);
        $client->request('GET', 'http://foo.com');
        $this->assertTrue($mock->getLastOptions()['synchronous']);
    }