/**
* Inverts the bits of this enum
* @return \static
*/
public function invert()
{
$this->_Value = Number::invertBits($this->_Value);
return $this;
}
public function testInvertBits()
{
$this->assertEquals(4, Number::invertBits(11));
$this->assertNotEquals(3, Number::invertBits(5));
}