public function test_add_embedded_image()
{
$message = <<<EOT
Date: Fri, 13 Feb 09 15:47:25 +0100
MIME-Version: 1.0
To: John Doe <*****@*****.**>
Content-Type: multipart/related; boundary="c67476988f320ca04d61815bcfd14360"
This is a multi-part message in MIME format.
--c67476988f320ca04d61815bcfd14360
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: 8bit
test
--c67476988f320ca04d61815bcfd14360
Content-Type: image/png; name="hello.png"
Content-Transfer-Encoding: base64
Content-ID: <hello>
iVBORw0KGgoAAAANSUhEUgAAAAYAAAAFCAYAAABmWJ3mAAAAAXNSR0IArs4c6QAAAAZiS0dE
AP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAIBJREFUCNc9yK8OQWEcx+HPiyCb
JtjciKaZILgARTRXwfQTXIVGM03xZwLZtHN2zpiZ2fu+v6/miY+b7EYyRcwMJMo4us0+lWgB
WcQJEPRaA9qNDqxuS12Ks8bboTb3tSQpRC+e34ckKf9k/0z2U5WS04y3f1Gr1jEZi8Oca3rk
B3WXTGfs7Y8kAAAAAElFTkSuQmCC
--c67476988f320ca04d61815bcfd14360--
EOT;
$mail = new SMail($this->date);
$mail->add_to('*****@*****.**', 'John Doe');
$mail->set_text('test');
$mail->add_embedded_image(file_get_contents(dirname(__FILE__).'/files/image.png'), 'hello', 'hello.png', 'image/png');
$mail->set_boundary('c67476988f320ca04d61815bcfd14360');
$this->assertEquals($message, (string) $mail);
}