Can't export files from Documents directory from application sandbox

[jamesknowsbest]

After creating a file in the Documents directory of the application's sandbox I can't export it using the custom artifacts feature of device farm.

I've created this fork to help explain and reproduce the issue.
https://github.com/jamesknowsbest/aws-device-farm-xctest-ui-tests-for-ios-sample-app

Let me know if you need anything else

[jamesknowsbest]

[update]

Previously, I was creating a file from the tests. This put the file in the application sandbox of the test app directory and not the directory of the actual app. I'm working on having the app create a file to verify that this feature works as expected.