/**
* @depends testWalkAcceptsClosure
*/
public function testWalkModifiesValuesWithUserdata()
{
$xao = new XArray([1, 2, 3]);
$expected = [2, 4, 6];
$xao->walk(function (&$value, $key, $number) {
$value = $value * $number;
}, 2);
$this->assertEquals($expected, (array) $xao);
}
