Admin stats tests

# rake test:mine

*** Mocha deprecation warning: Change `require 'mocha'` to `require 'mocha/setup'`.

/root/openshift-test/broker/test/test_helper.rb:13: warning: already initialized constant RUBY_VERSION
Run options: 

# Running tests:

.........

Finished tests in 4.035828s, 2.2300 tests/s, 12.3890 assertions/s.

9 tests, 50 assertions, 0 failures, 0 errors, 0 skips