public function testWalkPartsForStreamFile()
{
// create a temporary file
$tmpFile = tempnam(sys_get_temp_dir(), "stream");
file_put_contents($tmpFile, "content");
// create mail instance
$mail = new ezcMailComposer();
$mail->addAttachment($tmpFile);
$mail->build();
// create the testing context
$context = new ezcMailPartWalkContext(function ($ctx, $part) {
$this->assertInstanceOf('ezcMailStreamFile', $part);
});
$context->filter = ['ezcMailStreamFile'];
// test it
$mail->walkParts($context, $mail);
// remove the temporary file
@unlink($tmpFile);
}
