public function testGetForwardedIp()
{
$uri = Uri::createFromString('https://example.com:443/foo/bar?abc=123');
$env = Environment::mock(['HTTP_X_FORWARDED_FOR' => '192.168.1.3, 192.168.1.2, 192.168.1.1']);
$headers = Headers::createFromEnvironment($env);
$cookies = [];
$serverParams = $env->all();
$body = new RequestBody();
$request = new Request('GET', $uri, $headers, $cookies, $serverParams, $body);
$this->assertEquals('192.168.1.3', $request->getIp());
}