public function testRun404OverrideByClosure()
{
$_SERVER['argv'] = ['index.php', '/'];
$_SERVER['argc'] = 2;
// Inject mock router.
$routes = new RouteCollection();
$routes->setAutoRoute(false);
$routes->set404Override(function () {
echo '404 Override by Closure.';
});
$router = Services::router($routes);
Services::injectMock('router', $router);
ob_start();
$this->codeigniter->run($routes);
$output = ob_get_clean();
$this->assertContains('404 Override by Closure.', $output);
}
