[MERGE] Convert tests.blackbox.test_f* to use internals where appropriate

[Aaron Bentley]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Aaron Bentley wrote:
> Aaron Bentley has voted approve.
> Status is now: Semi-approved
> 
> 
> For details, see:
> http://bundlebuggy.aaronbentley.com/request/%3C46B921B5.1070702%40warwick.ac.uk%3E

Could someone else review this, please?  I approved it last Wednesday,
but it needs another review before it can go in.

Aaron
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFGwFls0F+nu1YWqI0RAiRAAJ0Whcd66I3m9hyMAgiO7tR+Fm2MBwCeKr4q
WnUCVb+0V7vNNr0H1MzS8+o=
=EaQ0
-----END PGP SIGNATURE-----