Tester\Assert::null PHP Méthode

    public static function null($actual, $description = NULL)
    {
        self::$counter++;
        if ($actual !== NULL) {
            self::fail(self::describe('%1 should be NULL', $description), $actual);
        }
    }

function routeIn(Nette\Application\IRouter $route, $url, $expectedPresenter = NULL, $expectedParams = NULL, $expectedUrl = NULL, $scriptPath = NULL)
{
    $url = new Nette\Http\UrlScript("http://example.com{$url}");
    if ($scriptPath) {
        $url->setScriptPath($scriptPath);
    }
    if ($url->getQueryParameter('presenter') === NULL) {
        $url->setQueryParameter('presenter', 'querypresenter');
    }
    $url->appendQuery(['test' => 'testvalue']);
    $httpRequest = new Nette\Http\Request($url);
    $request = $route->match($httpRequest);
    if ($request) {
        // matched
        $params = $request->getParameters();
        asort($params);
        asort($expectedParams);
        Assert::same($expectedPresenter, $request->getPresenterName());
        Assert::same($expectedParams, $params);
        $result = $route->constructUrl($request, $url);
        Assert::same($expectedUrl, $result);
    } else {
        // not matched
        Assert::null($expectedPresenter);
    }
}