Add some tests for local provider destroy

Add some tests for local provider destroy

During the force destroy part, forcably remove the
mongo and machine agent upstart scripts.

Tests are added to show that these are removed.
A drive by test was added to show that the containers
are destroyed too.

https://code.launchpad.net/~thumper/juju-core/better-local-destroy-environ/+merge/212544

(do not edit description out of merge proposal)

[thumper, 2014-03-25 04:19:53]

Please take a look.

[axw, 2014-03-25 04:29:45]

On 2014/03/25 04:19:53, thumper wrote:
> Please take a look.

Lovely, LGTM.

[axw, 2014-03-25 04:29:55]

Oops, meant to mail this

https://codereview.appspot.com/79690043/diff/1/provider/local/environ.go
File provider/local/environ.go (right):

https://codereview.appspot.com/79690043/diff/1/provider/local/environ.go#newc...
provider/local/environ.go:443: // Stop the mongo database. It's possible that
the service
// Stop the mongo database and machine agent. It's possible ...

?

[thumper, 2014-03-25 05:25:56]

On 2014/03/25 04:29:55, axw wrote:
> Oops, meant to mail this
> 
> https://codereview.appspot.com/79690043/diff/1/provider/local/environ.go
> File provider/local/environ.go (right):
> 
>
https://codereview.appspot.com/79690043/diff/1/provider/local/environ.go#newc...
> provider/local/environ.go:443: // Stop the mongo database. It's possible that
> the service
> // Stop the mongo database and machine agent. It's possible ...
> 
> ?

Done.