yubioath-flutter/integration_test/test_util.dart

import 'package:flutter/material.dart';
import 'package:yubico_authenticator/android/init.dart' as android;
import 'package:yubico_authenticator/core/state.dart';
import 'package:yubico_authenticator/desktop/init.dart' as desktop;

Future<Widget> getAuthenticatorApp() async => isDesktop
    ? await desktop.initialize([])
    : isAndroid
        ? await android.initialize()
        : throw UnimplementedError('Platform not supported');