/**
* @test
*/
public function muttableTest()
{
$this->assertTrue($this->bitmask->add(1024) === $this->bitmask && $this->bitmask->getMask() == self::MASK + 1024 && $this->bitmask->remove(1024) === $this->bitmask && $this->bitmask->getMask() == self::MASK);
}
