public function testCanIncludeAndExcludeUsers($user, $users, $output = '')
{
$callback = function ($event) {
echo '1';
};
$this->manager->addEventHandler('handler', $callback)->addCallbacks('handler', ['event' => 0], $users);
$this->request->expects($this->any())->method('getUser')->will($this->returnValue($user));
$this->expectOutputString($output);
$this->manager->trigger('event');
}