function testUsagePng()
{
$writer = new \Core3\Writer\Barcode2D\Qrcode();
$data = $writer->renderAsPng('hello world :-)');
$this->assertInternalType('string', $data);
$this->assertGreaterThanOrEqual(100, strlen($data));
$reader = new \Core3\Reader\BinaryData\Image();
$this->assertEquals(true, $reader->isPngData($data));
}
function testAttachAndEmbedHtmlImage()
{
// NOTE this shows how to embed attached image in html mail
$mailer = new \Core3\Client\Mailer();
$mailer->setFrom('*****@*****.**');
$mailer->addRecipient($this->toAddress);
$mailer->setSubject('attached embedded image mail åäö');
$qr = new \Core3\Writer\Barcode2D\Qrcode();
$data = $qr->renderAsPng('hello world :-)');
$contentId = $mailer->embedData($data, 'qr.png', 'image/png');
$msg = '<b>hello</b> world åäö!' . '<img src="cid:' . $contentId . '"/>';
// <- embeds attached image in the mail
$mailer->sendHtml($msg);
}
