testing: import test only deps

testing: import test only deps

This proposal makes it possible to get all the deps required to
build and *test* Juju using these simple steps. This is intended to 
support running a CI build of Juju.

sudo apt-get install gcc golang-go bzr libzookeeper-mt-dev mongodb-server zookeeperd zip -y
export GOPATH=$HOME
go get -v launchpad.net/juju-core/cmd/juju
go test launchpad.net/juju-core/...

Currently this procedure fails because go get doens't resolve these two 
pkgs because they are only visible from the testing path.
src/launchpad.net/juju-core/testing/http.go:7:2: import "launchpad.net/gocheck": cannot find package
src/launchpad.net/juju-core/store/lpad.go:7:2: import "launchpad.net/lpad": cannot find package

https://code.launchpad.net/~dave-cheney/juju-core/083-testing-import-test-only-packages/+merge/122187

(do not edit description out of merge proposal)

[dave_cheney.net, 2012-08-31 03:07:39]

Please take a look.

[dave_cheney.net, 2012-08-31 03:12:49]

Please take a look.

[dave_cheney.net, 2012-08-31 03:16:55]

Please take a look.

[niemeyer, 2012-09-04 14:20:02]

https://codereview.appspot.com/6492065/diff/2002/testing/imports.go
File testing/imports.go (right):

https://codereview.appspot.com/6492065/diff/2002/testing/imports.go#newcode8
testing/imports.go:8: _ "launchpad.net/lpad"
% grep 'launchpad.net/lpad' -r -l .
./store/lpad_test.go
./store/charmload/main.go
./store/lpad.go

?