Code review comment for lp:~thumper/juju-core/testing-docs

Reviewers: mp+218732_code.launchpad.net,

Message:
Please take a look.

Description:
Add some developer docs for writing tests.

Obviously there is a lot that could be written, but this
is a start.

https://code.launchpad.net/~thumper/juju-core/testing-docs/+merge/218732

(do not edit description out of merge proposal)

Please review this at https://codereview.appspot.com/96110043/

Affected files (+234, -0 lines):
   A [revision details]
   A doc/how-to-write-tests.txt