public function testGetInfoPng()
{
$original = Helper::getOrig('butterfly.png');
$img = new Image($original);
$info = $img->getInfo();
is(640, $info['width']);
is(478, $info['height']);
is('image/png', $info['mime']);
is('landscape', $info['orient']);
isEmpty($info['exif']);
isTrue($img->isPng());
}