public function testUasort()
{
$function = function ($a, $b) {
if ($a == $b) {
return 0;
}
return $a < $b ? -1 : 1;
};
$ar = new ArrayObject(array('a' => 4, 'b' => 8, 'c' => -1, 'd' => -9, 'e' => 2, 'f' => 5, 'g' => 3, 'h' => -4));
$sorted = $ar->getArrayCopy();
uasort($sorted, $function);
$ar->uasort($function);
$this->assertSame($sorted, $ar->getArrayCopy());
}
