How to retrieve app logs when running UITests?

Question

As stated, any way of retrieving App Logs, not just the test logs, using Xcode 14? all I see in xcresult files are the Runner's logs, but I need the app logs as well both when running via Xcode or through cli

Answer 1

On Xcode 15 Reveal Diagnostics in Finder context menu is gone, which seems VERY ODD. I'm currently facing the same problem as described in this Apple dev forum thread and I opened a Feeback Report FB13615178.

In the meantime, you can use xcresulttool.

Get the object graph to get the IDs for the objects you want to export.

xcrun xcresulttool graph --path YourResult.xcresult/ > graph.log

Search for StandardOutputAndStandardError to see where it is in the graph. Get its ID and export it:

xcrun xcresulttool export \
--type directory \
--path YourResult.xcresult/ \
--output-path ./Output \
--id <ID-HERE>

I believe we can put together a script to automatically extract the logs on a CI environment - this is our current goal. Please share if you have any progress.

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On Xcode 14: Open the .xcresult in Xcode, right-click a test, and select Reveal Diagnostics in Finder. You should see your simulator(s) folder(s) and inside of one of those you'll see StandardOutputAndStandardError-bundle-id.txt file.