JBZoo\Image\Image::loadFile PHP Method

    public function loadFile($filename)
    {
        $cleanFilename = FS::clean($filename);
        if (!FS::isFile($cleanFilename)) {
            throw new Exception('Image file not forund: ' . $filename);
        }
        $this->cleanup();
        $this->_filename = $cleanFilename;
        $this->_loadMeta();
        return $this;
    }

 public function testAutoOrient()
 {
     $excepted = Helper::getExpected(__FUNCTION__ . '.jpg');
     $actual = Helper::getActual(__FUNCTION__ . '.jpg');
     $original = Helper::getOrig('butterfly.jpg');
     $img = new Image();
     $img->loadFile($original)->autoOrient()->saveAs($actual);
     Helper::isFileEq($actual, $excepted);
 }