Use package:patrol for Android e2e tests.

[Jonas-Sander]

Use package:patrol for integration/e2e tests for Android.

The biggest benefit is that each test can run from a completely clean state, which is not possible with the integration_test package. Because of this we shouldn't have the issues with e.g. the auth state being kept for each test (or logging out and back in which breaks stuff).

For other platforms I kept our old tests (renamed to integration_test/integration_test_old.dart):

• Web should theoretically work as long as no native interaction is used, but I couldn't set it up practically. There is an open issue for web in their repo.
• iOS should work, but I couldn't get it running.
• macOS is never mentioned, so I don't know if it's possible to run tests for mac.

From https://patrol.leancode.co/:

Patrol lets you access native features of the platform that the Flutter app is running on. Finally, you can interact with permission dialogs, notifications, WebViews, change device settings, toggle Wi-Fi, and much more – and you can code this very easily in plain Dart.

Patrol also provides a new custom finder system that extends Flutter's default finders, making them shorter and easier to understand. Patrol's custom finders, coupled with Hot Restart, make writing integration tests dramatically faster, easier and more fun!

Command to running the tests:

patrol build android \
 --flavor prod \
 --dart-define USER_1_EMAIL=example@sharezone.net \
 --dart-define USER_1_PASSWORD=foobar \
 -t integration_test/app_test.dart

[github-actions]

Visit the preview URL for this PR (updated for commit c31de56):

https://sharezone-test--pr1137-patrol-e2e-tests-rzzd2cae.web.app

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[Jonas-Sander]

@nilsreichardt Ready for review.

I couldn't get iOS set up, so for now I left it as is.
Maybe you could try your luck sometime in the future with setting it up.

Also the macOS job seems to be making problems, do you know how it can be fixed?

[nilsreichardt]

After merging this PR, we can delete INTEGRATION_TEST_USER_1_EMAIL_DART_DEFINE_BASE64 from our secrets, right?

[Jonas-Sander]

I think so, yes

[nilsreichardt]

LGTM

[nilsreichardt]

iOS should work, but I couldn't get it running.

Even, if we can get Patrol running for iOS, we can't re-use the tests for Android because on iOS you can't clear the app state after each test. Because of our sign-out bug, we still need on iOS one large e2e test.