sdk-test

Updating

Make sure to have updated github.com/libopenstorage/openstorage-sdk-clients with the latest.
Type dep ensure -update github.com/libopenstorage/openstorage-sdk-clients
Add the tests accordingly. The tests require that the latest container openstorage/mock-sdk-server has been created and pushed to Docker hub by the Travis builds of the master branch in github.com/libopenstorage/openstorage.

After making the appropriate changes in pkg/sanity, run the tests by typing: make test from the root of repo.