<!DOCTYPE html><!-- webkit-test-runner [ enableAttachmentElement=true ] -->
<html>
<body>
<attachment id="attachment" subtitle="1024 bytes"></attachment>
<script>
var file;
if (window.internals)
    file = window.internals.createFile("resources/test-file.txt");

document.getElementById("attachment").file = file;
</script>
</body>
</html>