Tox unit testcases

Openstack projects generally have three categories of tests that commits are must pass before being ready for review:
unit tests, Style checks and Integration checks.

There are two ways to run the unit tests for a project: using tox, or using the project's run_tests.sh script. Using tox is the newer convention and is generally preferred.

Unit tests are self-contained in each projects under the "test" directory.

Tests should be written to ensure consistency on every update of RSC project