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test/nearby_service_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:nearby_service/nearby_service.dart';
+import 'package:nearby_service/nearby_service_platform_interface.dart';
+import 'package:nearby_service/nearby_service_method_channel.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+class MockNearbyServicePlatform
+    with MockPlatformInterfaceMixin
+    implements NearbyServicePlatform {
+  @override
+  Stream<NearbyDevice?> getConnectedDeviceStream(device) {
+    // TODO: implement getConnectedDeviceStream
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<NearbyDevice>> getPeers() {
+    // TODO: implement getPeers
+    throw UnimplementedError();
+  }
+
+  @override
+  Stream<List<NearbyDevice>> getPeersStream() {
+    // TODO: implement getPeersStream
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<String?> getPlatformModel() {
+    // TODO: implement getPlatformModel
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<String?> getPlatformVersion() {
+    // TODO: implement getPlatformVersion
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<void> openServicesSettings() {
+    // TODO: implement openServicesSettings
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<bool> disconnect(NearbyDevice device) {
+    // TODO: implement disconnect
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<NearbyDevice?> getCurrentDevice() {
+    // TODO: implement getCurrentDevice
+    throw UnimplementedError();
+  }
+}
+
+void main() {
+  final NearbyServicePlatform initialPlatform = NearbyServicePlatform.instance;
+
+  test('$MethodChannelNearbyService is the default instance', () {
+    expect(initialPlatform, isInstanceOf<MethodChannelNearbyService>());
+  });
+
+  test('getPlatformVersion', () async {
+    NearbyService nearbyServicePlugin = NearbyService.getInstance();
+    MockNearbyServicePlatform fakePlatform = MockNearbyServicePlatform();
+    NearbyServicePlatform.instance = fakePlatform;
+
+    expect(await nearbyServicePlugin.getPlatformVersion(), '42');
+  });
+}