public function testExtractWithoutPreservedKeys()
{
$data = array(1 => 'a', 0 => 'b', 'a' => 1, 'b' => 0);
$objects = new resources\Foos($data);
$result = $objects->extract(1, 0, false);
$this->assertInstanceOf(get_class($objects), $result);
$this->assertSame(array_slice($data, 1, 3, false), $result->toArray());
}
