[error] Postgrex.Protocol (#PID<0.XXX.0>) disconnected: ** (DBConnection.ConnectionError) owner #PID<0.XXX.0> exited while client #PID<0.XXX.0> is still running with: shutdown
现在我想我了解发生了什么：在db事务完成之前,正在检查Ecto SandBox连接池.根据文档(至少我读它们的方式),解决这些问题的方法是使用共享连接池：Ecto.Adapters.sql.SandBox.mode(MyApp.Repo,{：shared,self()} )我在做什么.不幸的是,这不起作用.
如何设置我的测试以便不会发生此错误？
解决方法
Yes,your understanding of the issue is correct. It is happening because the test process,the one who owns the connection,has exited but the Task is still using its connection. Using {:shared,self()} does not fix it because the test is still owning the connection,you are just sharing it implicitly.
The way to fix is to guarantee the Task has finished before the test exits. This can be done by calling Process.exit(task_pid,:kill). If you don’t know the Task PID,you can call Task.Supervisor.which_children(NameOfYourTaskSupervisor) to return all PIDs which you then traverse and kill them. However,if you do this approach,the test cannot run concurrently (as you may kill tasks started by another test).
