Issues running tests with a Phoenix 1.3 app that uses GenServer processes

[idi527]

You might be interested in learning more about ecto sandbox:

https://medium.com/@qertoip/making-sense-of-ecto-2-sql-sandbox-and-connection-ownership-modes-b45c5337c6b7

https://hexdocs.pm/ecto/Ecto.Adapters.SQL.Sandbox.html

Ecto test multiple process transaction in sandbox with shared connection

I basically have a similar setup like the one described in the sandbox docs for a shared mode connection, which looks like this: setup do :ok = Ecto.Adapters.SQL.Sandbox.checkout(Repo) Ecto.Adapters.SQL.Sandbox.mode(Repo, {:shared, self()}) end test "create two posts, one sync, another async" do task = Task.async(fn -> Repo.insert!(%Post{title: "async"}) end) assert %Post{} = Repo.insert!(%Post{title: "sync"}) assert %Post{} = Task.await(task) end Which runs fine. Now when I …