/**
  * Call the given URI and return the Response.
  *
  * @param  string  $method
  * @param  string  $uri
  * @param  array  $parameters
  * @param  array  $cookies
  * @param  array  $files
  * @param  array  $server
  * @param  string  $content
  *
  * @return \Illuminate\Http\Response
  */
 public function callRoute($method, $uri, $parameters = [], $cookies = [], $files = [], $server = [], $content = null)
 {
     $server = collect(['CONTENT_TYPE' => 'application/json', 'Accept' => 'application/json'])->merge($server)->toArray();
     $request = Request::create($uri, $method, $parameters, $cookies, $files, $this->transformHeadersToServerVars($server), $content);
     $kernel = App::make('Illuminate\\Contracts\\Http\\Kernel');
     $response = $kernel->handle($request);
     $kernel->terminate($request, $response);
     if (file_exists($file = App::bootstrapPath() . '/app.php')) {
         $app = (require $file);
         $app->make('Illuminate\\Contracts\\Console\\Kernel')->bootstrap();
     }
     return $response;
 }