Eccube\Tests\Application\TwigTraitTest::testRenderKeepResponse PHP Method

    public function testRenderKeepResponse()
    {
        $app = $this->app;
        $parameters = array('error_title' => 'error', 'error_message' => 'error');
        $response = $app->render('error.twig', $parameters, new Response('', 404));
        $this->assertEquals(404, $response->getStatusCode());
    }