2026-02-20-overlay

trip_overlay_plugin/test/trip_overlay_plugin_method_channel_test.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:trip_overlay_plugin/trip_overlay_plugin_method_channel.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  MethodChannelTripOverlayPlugin platform = MethodChannelTripOverlayPlugin();
+  const MethodChannel channel = MethodChannel('trip_overlay_plugin');
+
+  setUp(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(
+      channel,
+      (MethodCall methodCall) async {
+        return '42';
+      },
+    );
+  });
+
+  tearDown(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger.setMockMethodCallHandler(channel, null);
+  });
+
+  test('getPlatformVersion', () async {
+    expect(await platform.getPlatformVersion(), '42');
+  });
+}

trip_overlay_plugin/test/trip_overlay_plugin_test.dart

@@ -0,0 +1,29 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:trip_overlay_plugin/trip_overlay_plugin.dart';
+import 'package:trip_overlay_plugin/trip_overlay_plugin_platform_interface.dart';
+import 'package:trip_overlay_plugin/trip_overlay_plugin_method_channel.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+class MockTripOverlayPluginPlatform
+    with MockPlatformInterfaceMixin
+    implements TripOverlayPluginPlatform {
+
+  @override
+  Future<String?> getPlatformVersion() => Future.value('42');
+}
+
+void main() {
+  final TripOverlayPluginPlatform initialPlatform = TripOverlayPluginPlatform.instance;
+
+  test('$MethodChannelTripOverlayPlugin is the default instance', () {
+    expect(initialPlatform, isInstanceOf<MethodChannelTripOverlayPlugin>());
+  });
+
+  test('getPlatformVersion', () async {
+    TripOverlayPlugin tripOverlayPlugin = TripOverlayPlugin();
+    MockTripOverlayPluginPlatform fakePlatform = MockTripOverlayPluginPlatform();
+    TripOverlayPluginPlatform.instance = fakePlatform;
+
+    expect(await tripOverlayPlugin.getPlatformVersion(), '42');
+  });
+}