function testCallBack()
{
$args = [];
$callBack = function ($user, $pass) use(&$args) {
$args = [$user, $pass];
return true;
};
$backend = new BasicCallBack($callBack);
$request = Sapi::createFromServerArray(['HTTP_AUTHORIZATION' => 'Basic ' . base64_encode('foo:bar')]);
$response = new Response();
$this->assertEquals([true, 'principals/foo'], $backend->check($request, $response));
$this->assertEquals(['foo', 'bar'], $args);
}
