App crashes without logs/error message when camera permissions are required, but required metadata not added to pyproject.toml

[gtm19]

Describe the bug

If :

• permission.camera is missing from app's pyproject.toml file, and
• self.camera.request_permission() is called from within a toga.App instance, and
• the app is run using briefcase run [-ur]

Then it crashes and produces no logs.

If you dig around in the 'Report' dialog generated by macOS, you get the following message:

This app has crashed because it attempted to access privacy-sensitive data without a usage description. The app's Info.plist must contain an NSCameraUsageDescription key with a string value explaining to the user how the app uses this data

Steps to reproduce

1. Instantiate a briefcase app
2. Add a call to self.camera.request_permission() in a method
3. Add the method as a callback to a button
4. briefcase run -ur and push the button

If you run briefcase dev the app seems to work and does not warn that the permissions have not been set.

Expected behavior

A warning during development, and an error when running a bundled app, that the permission.camera metadata is missing from the pyproject.toml file

Screenshots

No response

Environment

• Operating System: MacOS Sonoma 14.4.1
• Python version: 3.12.1
• Software versions:
  • Briefcase: 0.3.18
  • Toga: 0.4.4

Logs

briefcase.2024_05_22-05_55_05.run.log

Additional context

No response

[freakboy3742]

I think this issue only occurs on Sonoma; I did the initial development on Ventura, and didn't have this problem, but I have since updated my laptop and can confirm that it's definitely happening now.