Unrecognized fields and dumping the analyzes to a file

Hi,

We're planning on extending an existing dissector, to support a new protocol extension. In order to see that all "holes" had been implemented, we have a pcap file that contains packets which should be all correctly analyzed by our extension.

Is there a way to dump the analyzes of the Wireshark to a file and not only to display them by the GUI ? We need that in order to be able to check that there are no more "Unrecognized" and to function as acceptance test of the dissector?

If you think there is a better way to achieve this, suggestions are truly accepted.