veyron/tools/mgmt/nodex: completed adding remaining tests for nodex command

This CL completes test coverage for the nodex command and includes
some code cleanup of the mock nodemanager used in the tests.

Change-Id: I52e372b3e440d10f132e9a26c618a424c72b365a
3 files changed
tree: 390460fdbbe5ff633bf2167001b21052464b995d
  1. lib/
  2. profiles/
  3. runtimes/
  4. security/
  5. services/
  6. tools/