public function testSortKeys()
{
$arr = new ArrayObject(['b' => 'bval', 'a' => 'aval', 'c' => 'cval']);
$arr->sortKeys();
$this->assertEquals(['a' => 'aval', 'b' => 'bval', 'c' => 'cval'], $arr->toArray());
$arr = new ArrayObject(['b' => 'bval', 'a' => 'aval', 'c' => 'cval']);
$arr->sortKeys(function ($a, $b) {
if ($a == $b) {
return 0;
}
return $a < $b ? -1 : 1;
});
$this->assertEquals(['a' => 'aval', 'b' => 'bval', 'c' => 'cval'], $arr->toArray());
$arr = new ArrayObject(['b' => 'bval', 'a' => 'aval', 'c' => 'cval']);
$arr->sortKeys(new StringComparator());
$this->assertEquals(['a' => 'aval', 'b' => 'bval', 'c' => 'cval'], $arr->toArray());
}
