--- /dev/null
+--TEST--
+Bug #14779 Proper header-body separator for empty attachment
+--SKIPIF--
+--FILE--
+<?php
+include "Mail/mime.php";
+
+$m = new Mail_mime();
+$m->addAttachment('', "text/plain", 'file.txt', FALSE, 'base64', 'attachment');
+$result = $m->get();
+
+if (preg_match('/(Content.*)--=.*/s', $result, $matches)) {
+ print_r($matches[1]."END");
+}
+
+?>
+--EXPECT--
+Content-Transfer-Encoding: base64
+Content-Type: text/plain;
+ name=file.txt
+Content-Disposition: attachment;
+ filename=file.txt
+
+
+END