Symfony\Component\Security\Http\HttpUtils::createRequest PHP Method

    public function createRequest(Request $request, $path)
    {
        if ($path && '/' !== $path[0] && 0 !== strpos($path, 'http')) {
            $this->resetLocale($request);
            $path = $this->generateUrl($path, true);
        }

        $newRequest = Request::create($path, 'get', array(), $request->cookies->all(), array(), $request->server->all());
        if ($session = $request->getSession()) {
            $newRequest->setSession($session);
        }

        if ($request->attributes->has(SecurityContextInterface::AUTHENTICATION_ERROR)) {
            $newRequest->attributes->set(SecurityContextInterface::AUTHENTICATION_ERROR, $request->attributes->get(SecurityContextInterface::AUTHENTICATION_ERROR));
        }
        if ($request->attributes->has(SecurityContextInterface::ACCESS_DENIED_ERROR)) {
            $newRequest->attributes->set(SecurityContextInterface::ACCESS_DENIED_ERROR, $request->attributes->get(SecurityContextInterface::ACCESS_DENIED_ERROR));
        }
        if ($request->attributes->has(SecurityContextInterface::LAST_USERNAME)) {
            $newRequest->attributes->set(SecurityContextInterface::LAST_USERNAME, $request->attributes->get(SecurityContextInterface::LAST_USERNAME));
        }

        return $newRequest;
    }

    public function testCreateRequest()
    {
        $utils = new HttpUtils($this->getRouter());

        // absolute path
        $request = $this->getRequest();
        $request->server->set('Foo', 'bar');
        $subRequest = $utils->createRequest($request, '/foobar');

        $this->assertEquals('GET', $subRequest->getMethod());
        $this->assertEquals('/foobar', $subRequest->getPathInfo());
        $this->assertEquals('bar', $subRequest->server->get('Foo'));

        // route name
        $utils = new HttpUtils($router = $this->getMockBuilder('Symfony\Component\Routing\Router')->disableOriginalConstructor()->getMock());
        $router
            ->expects($this->once())
            ->method('generate')
            ->will($this->returnValue('/foo/bar'))
        ;
        $router
            ->expects($this->any())
            ->method('getContext')
            ->will($this->returnValue($this->getMock('Symfony\Component\Routing\RequestContext')))
        ;
        $subRequest = $utils->createRequest($this->getRequest(), 'foobar');
        $this->assertEquals('/foo/bar', $subRequest->getPathInfo());

        // absolute URL
        $subRequest = $utils->createRequest($this->getRequest(), 'http://symfony.com/');
        $this->assertEquals('/', $subRequest->getPathInfo());
    }