public function testshorten()
{
$my_string = "12345";
$string = new williamknauss\String($my_string);
$string->shorten(4);
//assert 1
$this->assertEquals("1234", $string->__toString());
$string = new williamknauss\String($my_string);
$string->shorten();
//assert 2
$this->assertEquals($my_string, $string->__toString());
}
