step 2: testing of actual experiments - existing of correct post/save

[vsoch]

We would want a change in an experiment repo to trigger another test, that will alert the library if it doesn't pass. I need to think about how to best do this, there are a few options (and I'd like to avoid sharing of any kind of credential between repos). Arguably, the test cases should be provided for the experiment submitted, and then asserted to exist in testing. Any change to the status of the downstream repo (not passing tests, etc.) should alert the library.