Unable to get response of root - laravel testing

I have my htaccess set up to redirect '/' requests to /newTheme/#/dashboard/ so the root is no more laravel/public/.

Now when I call home page from a test case, it gets response for laravel/public while I need the response for /newTheme/#/dashboard/

Test Method:

public function testDashboard()
    {
        $crawler = $this->client->request('GET', '/');
        $this->assertTrue($this->client->getResponse()->isOk());
    }

How can I get the response for the root ?

I tried with ../../newTheme/index.php/dashboard/ but did not work.