import 'package:flutter/services.dart'; import 'package:flutter_test/flutter_test.dart'; import 'package:nearby_service/nearby_service_method_channel.dart'; void main() { TestWidgetsFlutterBinding.ensureInitialized(); MethodChannelNearbyService platform = MethodChannelNearbyService(); const MethodChannel channel = MethodChannel('nearby_service'); setUp(() { TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger .setMockMethodCallHandler( channel, (MethodCall methodCall) async { return switch (methodCall.method) { 'getPlatformVersion' => 42, _ => null, }; }, ); }); tearDown(() { TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger .setMockMethodCallHandler(channel, null); }); test('getPlatformVersion', () async { expect(await platform.getPlatformVersion(), '42'); }); }