Code review comment for lp:~tvansteenburgh/charms/precise/block-storage-broker/fix-tests

This doesn't fix the tests.

test_hooks
  py ... [ERROR]
test_util
  py ... [ERROR]

===============================================================================
[ERROR]
Traceback (most recent call last):
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 586, in loadByNames
    things.append(self.findByName(name))
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 395, in findByName
    return filenameToModule(name)
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 87, in filenameToModule
    return _importFromFile(fn)
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 106, in _importFromFile
    module = imp.load_source(moduleName, fn, fd)
  File "test_hooks.py", line 4, in <module>
    import mocker
exceptions.ImportError: No module named mocker

test_hooks.py
===============================================================================
[ERROR]
Traceback (most recent call last):
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 586, in loadByNames
    things.append(self.findByName(name))
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 395, in findByName
    return filenameToModule(name)
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 87, in filenameToModule
    return _importFromFile(fn)
  File "/home/charles/tmp/charms/precise/block-storage-broker/.venv/local/lib/python2.7/site-packages/twisted/trial/runner.py", line 106, in _importFromFile
    module = imp.load_source(moduleName, fn, fd)
  File "test_util.py", line 3, in <module>
    import mocker
exceptions.ImportError: No module named mocker

test_util.py
-------------------------------------------------------------------------------
Ran 2 tests in 0.002s

FAILED (errors=2)