public function testSetDispatcher()
{
$this->router->setDispatcher(\FastRoute\simpleDispatcher(function ($r) {
$r->addRoute('GET', '/', function () {
});
}));
$class = new \ReflectionClass($this->router);
$prop = $class->getProperty('dispatcher');
$prop->setAccessible(true);
$this->assertInstanceOf('\\FastRoute\\Dispatcher', $prop->getValue($this->router));
}