/**
* @test
*/
public function I_can_create_new_number_by_adding_value()
{
$number = new NumberObject(123);
$increased = $number->add(456);
self::assertSame(123, $number->getValue());
self::assertSame(579, $increased->getValue());
self::assertNotEquals($number, $increased);
$increasedMore = $increased->add($number);
self::assertSame(702, $increasedMore->getValue());
}
