import 'package:custom_social_share/src/custom_social_share_method_channel.dart'; import 'package:flutter/services.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { MethodChannelCustomSocialShare platform = MethodChannelCustomSocialShare(); const MethodChannel channel = MethodChannel('custom_social_share'); TestWidgetsFlutterBinding.ensureInitialized(); setUp(() { TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger .setMockMethodCallHandler(channel, (MethodCall methodCall) async { return true; }); }); tearDown(() { TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger .setMockMethodCallHandler(channel, null); }); test('toAll', () async { expect(await platform.toAll('success'), true); }); }