I’m using Wallaby (0.17.0) for acceptance tests with phantomjs (2.1.1), and the latest Elixir (1.4.5) and Erlang (20). I’ve written a few acceptance tests, each of which passes when run individually, but when I run them together (via mix test test/acceptance) they fail because things that should be on the page aren’t. It’s as if all the tests are running in the same browser, even though Wallaby should “manage multiple browsers for you.”

I believe I’ve set everything up according to the setup section of the README, although I’m not running the tests with async: true because my app uses sockets and Phoenix.Ecto.SQL.Sandbox doesn’t play well with async. To be clear, the tests also fail with async: true, I just also get DBConnection.OwnershipErrors in each when attempting to connect to the socket.

Is there anything else necessary to ensure each test is run in its own phantomjs browser, or to clear out sessions between test runs?