/**
* Method to test walk()
*
* @return void
*
* @covers Windwalker\Data\Data::walk
*/
public function testWalk()
{
$data = new Data();
$data->foo = 'bar';
$data->baz = 'yoo';
$data->walk(function (&$value, $key, $userdata) {
$value = $userdata . ':' . $key . ':' . strtoupper($value);
}, 'prefix');
$this->assertEquals('prefix:baz:YOO', $data->baz);
}
