--- /dev/null
+--TEST--
+Bug #12385 Bad regex when replacing css style attachments
+--SKIPIF--
+--FILE--
+<?php
+$from='user@from.example.com';
+
+require_once('Mail/mime.php');
+
+$mime=new Mail_mime();
+
+$body="<style>
+className {
+ background-image: url('test.gif');
+}
+</script>
+";
+
+$mime->setHTMLBody($body);
+$mime->setFrom($from);
+$mime->addHTMLImage('','image/gif', 'test.gif', false);
+$msg = $mime->get();
+
+$cidtag = preg_match("|url\('cid:[^']*'\);|", $msg);
+if (!$cidtag){
+ print("FAIL:\n");
+ print($msg);
+}else{
+ print("OK");
+}
+--EXPECT--
+OK