[PATCH] Create new unittest for key.py

[Chris Lumens]

>  tests/commands/key.py |   40 ++++++++++++++++++++++++++++++++++++++++
>  1 files changed, 40 insertions(+), 0 deletions(-)
>  create mode 100644 tests/commands/key.py

Thanks for this test case as well.  Committed, and pushing this and
everything else I've committed recently.

- Chris