Slim Test class

Slim_RoutesTest.php

<?php

require_once __DIR__ . '/../vendor/autoload.php';

use Slim\Environment;


class RoutesTest extends PHPUnit_Framework_TestCase
{

    public function request($method, $path, $options = array())
    {
        // Capture STDOUT
        ob_start();

        // Prepare a mock environment
        Environment::mock(array_merge(array(
            'REQUEST_METHOD' => $method,
            'PATH_INFO' => $path,
            'SERVER_NAME' => 'slim-test.dev',
        ), $options));

        $app = new \Slim\Slim();
        $this->app = $app;
        $this->request = $app->request();
        $this->response = $app->response();

        // Return STDOUT
        return ob_get_clean();
    }

    public function get($path, $options = array())
    {
        $this->request('GET', $path, $options);
    }

    public function testIndex()
    {
        $this->get('/');
        $this->assertEquals('200', $this->response->status());
    }
}

Am I missing something? it asserts everything even if routes are defined incorrectly, for example the following code
$this->get('/invalid */ route');
$this->assertEquals('200', $this->response->status());

outputs OK (1 test, 1 assertion)