Only test working endpoints.
Only test working endpoints.

The previous tests would attempt to exercise endpoints which required
the poller application to have pre-seeded data. This would cause the
test to fail since it often had not completed before the tests were run.
Rather than hit endpoints which have external dependencies, we now hit
endpoints which are self-contained and still provide meaningful
functional test results.

Signed-off-by: Ryan Hass <7a1efea0847aa10fda44596a4a622bd3187d968e@users.noreply.github.com>

chef/opscode-omnitruck,chef/opscode-omnitruck,chef/omnitruck,chef/opscode-omnitruck,chef/omnitruck,chef/omnitruck