function testCallBack()
{
$args = array();
$callBack = function ($user, $pass) use(&$args) {
$args = [$user, $pass];
return true;
};
$backend = new BasicCallBack($callBack);
$server = new Server();
$server->httpRequest = Sapi::createFromServerArray(['HTTP_AUTHORIZATION' => 'Basic ' . base64_encode('foo:bar')]);
$this->assertTrue($backend->authenticate($server, 'Realm'));
$this->assertEquals(['foo', 'bar'], $args);
}
