Unlicensed files in fakeserver & unit tests (from mailnews)

There are a few files I was looking at using some code from that are 
part of the fakeserver code (the unit tests) in mailnews. Unfortunately 
not all of them have a license header. I talked to Standard8 on IRC 
yesterday and he suggested I post here.

For example: maild.js [1] has a MPL license, but nntpd.js [2] does not 
have a license.

All the files in the unit test directory [3] don't have licenses also 
(although I'm only interested in test_nntpPassword.js, 
test_getNewsMessage.js, head_server_setup.js, maybe a few others).

Are these files unlicensed or was the MPL header just never put on these 
files (and nttpd.js above)?  I'm hoping to use some of these files (or 
bits of them) in an MPL project.

Any help would be appreciated.
-Patrick Cloke

[1] 
http://mxr.mozilla.org/comm-central/source/mailnews/test/fakeserver/maild.js
[2] 
http://mxr.mozilla.org/comm-central/source/mailnews/test/fakeserver/nntpd.js
[3] http://mxr.mozilla.org/comm-central/source/mailnews/news/test/unit/