Yosymfony\Spress\Core\Support\StringWrapper::deleteSufix PHP Method

    public function deleteSufix($sufix)
    {
        if ($this->endWith($sufix) === true) {
            return substr($this->str, 0, -strlen($sufix));
        }
        return $this->str;
    }

 public function testDeleteSufix()
 {
     $str = new StringWrapper('Welcome to Spress');
     $this->assertEquals('Welcome to', $str->deleteSufix(' Spress'));
     $this->assertEquals('Welcome to Spress', $str->deleteSufix('Hi'));
     $this->assertEquals('Welcome to Spress', $str->deleteSufix(''));
 }