JBZoo\Image\Image::isPortrait PHP Method

    public function isPortrait()
    {
        return $this->_orient === self::PORTRAIT;
    }

 public function testOrientation()
 {
     $img = new Image(Helper::getOrig('butterfly.gif'));
     isTrue($img->isPortrait());
     $img = new Image(Helper::getOrig('butterfly.jpg'));
     isTrue($img->isLandscape());
     $img = new Image(Helper::getOrig('basketball.gif'));
     isTrue($img->isSquare());
 }