flutterflutter-testlocation-servicesios-permissionsflutterdriver

Grant iOS permissions to Flutter Driver for integration test


Using the Flutter integration_test package, I'm having trouble with a test that keeps failing due to an iOS permissions request that is inaccessible from the testing environment.

I tried applesimutils from github.com/wix/AppleSimulatorUtils but when attempting to set the permissions before flutter drive, the application's bundle identifier isn't yet registered:

Got error:
An error was encountered processing the command (domain=NSPOSIXErrorDomain, code=2):
The operation couldn’t be completed. No such file or directory
No such file or directory

Maybe this could be avoided by not creating a fresh Simulator instance every time, but I got past this by running flutter drive ... & sleep 10 before the applesimutils --setPermissions command to allow the application to start first, but that still gives me:

══╡ EXCEPTION CAUGHT BY FLUTTER TEST FRAMEWORK ╞═════════════════
The following LocationError object was thrown running a test:
  [LocationError code: 0, message: null]

When the exception was thrown, this was the stack:
#2   BackgroundGeolocation.getCurrentPosition.<anonymous closure>
  (package:flutter_background_geolocation/models/background_geolocation.dart:497:17)

...

Solution

  • After getting a bit more familiar with xcrun simctl I noticed that it can grant permissions before the application starts, as long as device has booted. applesimutils not required!

    My working solution in the form of a shell script looks like this:

    # Simulator setup
    xcrun simctl create iOS14Simulator
    xcrun simctl boot iOS14Simulator
    xcrun simctl privacy iOS14Simulator grant location-always <YOUR_BUNDLE_ID>
    
    # Launch integration test
    flutter drive \
      --driver=test_driver/integration_test_driver.dart \
      --target=integration_test/app_test.dart
    
    # Simulator teardown
    xcrun simctl delete iOS14Simulator