public function testMapPrependsGroupPattern()
{
$methods = ['GET'];
$pattern = '/hello/{first}/{last}';
$callable = function ($request, $response, $args) {
echo sprintf('Hello %s %s', $args['first'], $args['last']);
};
$this->router->pushGroup('/prefix', function () {
});
$route = $this->router->map($methods, $pattern, $callable);
$this->router->popGroup();
$this->assertAttributeEquals('/prefix/hello/{first}/{last}', 'pattern', $route);
}