
This test will execute the 'nothing' command. That command should
just build the cache, and return.

  >>> process = smart_process("nothing")
  >>> process.wait()
  0

  >>> print process.stdout.read()
  Updating cache...               ######################################## [100%]
  <BLANKLINE>
  Saving cache...
  <BLANKLINE>
  <BLANKLINE>

vim:ft=doctest
