Review: [MERGE] Convert test.blackbox.test_c* to use internals where appropriate

[Aaron Bentley]

Aaron Bentley has voted resubmit.
Status is now: Resubmit
Comment:
Still has whitspace-alignment stuff

For details, see: 
http://bundlebuggy.aaronbentley.com/request/%3C1187728925.6103.23.camel%40lapbert%3E