import 'package:flutter_test/flutter_test.dart';
import 'package:flutter_channel/flutter_channel.dart';
import 'package:flutter_channel/flutter_channel_platform_interface.dart';
import 'package:flutter_channel/flutter_channel_method_channel.dart';
import 'package:plugin_platform_interface/plugin_platform_interface.dart';

class MockFlutterChannelPlatform
    with MockPlatformInterfaceMixin
    implements FlutterChannelPlatform {

  @override
  Future<String?> getChannel() => Future.value('42');
}

void main() {
  final FlutterChannelPlatform initialPlatform = FlutterChannelPlatform.instance;

  test('$MethodChannelFlutterChannel is the default instance', () {
    expect(initialPlatform, isInstanceOf<MethodChannelFlutterChannel>());
  });

  test('getChannel', () async {
    FlutterChannel flutterChannelPlugin = FlutterChannel();
    MockFlutterChannelPlatform fakePlatform = MockFlutterChannelPlatform();
    FlutterChannelPlatform.instance = fakePlatform;

    expect(await flutterChannelPlugin.getChannel(), '42');
  });
}