public function teststr_ireplace_counts()
{
$my_string = "HellI|GIidbye|WIrld";
$counter = 1;
$string = new williamknauss\String($my_string);
$string->str_ireplace("i", "o", "", $counter);
//assert 1
$this->assertEquals(str_ireplace("i", "o", $my_string, $counter), $string->__toString());
}
