Codeship with Testim.io - Am I testing my latest version?

Sorry for the dumb question but I could not find an answer for that.

Codeship + Testim.io + Heroku.

In my Staging env - I use Testim.io to test the app once it deployed.
The following tutorial is guiding me how to invoke my tests - but I see the tests are being invoked BEFORE the new app has been deployed - so isn't it testing one version before my latest? I expected the tests to run after the deploy.
Probably I am missing here something.