diff --git a/example/lib/pages/alert_page.dart b/example/lib/pages/alert_page.dart
index c867df0..7bc56f9 100644
--- a/example/lib/pages/alert_page.dart
+++ b/example/lib/pages/alert_page.dart
@@ -1,8 +1,10 @@
 import 'package:adaptive_dialog/adaptive_dialog.dart';
+import 'package:example/result_provider.dart';
 import 'package:example/router/router.dart';
 import 'package:example/util/logger.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 
 class AlertRoute extends GoRouteData {
@@ -11,11 +13,11 @@ class AlertRoute extends GoRouteData {
   Widget build(BuildContext context, GoRouterState state) => const AlertPage();
 }
 
-class AlertPage extends StatelessWidget {
+class AlertPage extends ConsumerWidget {
   const AlertPage({super.key});
 
   @override
-  Widget build(BuildContext context) {
+  Widget build(BuildContext context, WidgetRef ref) {
     return Scaffold(
       appBar: AppBar(
         title: Text(pascalCaseFromRouteUri(GoRouterState.of(context).uri)),
@@ -30,7 +32,7 @@ class AlertPage extends StatelessWidget {
                 title: 'Title',
                 message: 'This is message.',
               );
-              logger.info(result);
+              ref.read(resultProvider.notifier).set(result);
             },
           ),
           ListTile(
@@ -43,7 +45,7 @@ class AlertPage extends StatelessWidget {
                 canPop: false,
               );
               assert(result == OkCancelResult.ok);
-              logger.info(result);
+              ref.read(resultProvider.notifier).set(result);
             },
           ),
           ListTile(
@@ -55,7 +57,7 @@ class AlertPage extends StatelessWidget {
                 message: 'This is message.',
                 barrierDismissible: false,
               );
-              logger.info(result);
+              ref.read(resultProvider.notifier).set(result);
             },
           ),
           ListTile(
diff --git a/example/lib/result_provider.dart b/example/lib/result_provider.dart
new file mode 100644
index 0000000..c60120f
--- /dev/null
+++ b/example/lib/result_provider.dart
@@ -0,0 +1,21 @@
+import 'package:example/util/util.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+
+final resultProvider =
+    StateNotifierProvider<ResultNotifier, dynamic>((ref) => ResultNotifier());
+
+class ResultNotifier extends StateNotifier<dynamic> {
+  ResultNotifier() : super(null);
+  // ignore: use_setters_to_change_properties
+  void set(dynamic text) {
+    state = text;
+  }
+
+  void clear() => set('');
+
+  @override
+  set state(dynamic value) {
+    super.state = value;
+    logger.info(state);
+  }
+}
diff --git a/example/lib/util/logger.dart b/example/lib/util/logger.dart
index dea0936..9f16daf 100644
--- a/example/lib/util/logger.dart
+++ b/example/lib/util/logger.dart
@@ -5,4 +5,5 @@ final SimpleLogger logger = SimpleLogger()
   ..setLevel(
     Level.FINEST,
     includeCallerInfo: true,
+    callerInfoFrameLevelOffset: 2,
   );
diff --git a/example/macos/Podfile.lock b/example/macos/Podfile.lock
index 681f2de..2185f92 100644
--- a/example/macos/Podfile.lock
+++ b/example/macos/Podfile.lock
@@ -1,4 +1,6 @@
 PODS:
+  - appkit_ui_element_colors (1.0.0):
+    - FlutterMacOS
   - dynamic_color (0.0.2):
     - FlutterMacOS
   - file_selector_macos (0.0.1):
@@ -12,6 +14,7 @@ PODS:
     - FlutterMacOS
 
 DEPENDENCIES:
+  - appkit_ui_element_colors (from `Flutter/ephemeral/.symlinks/plugins/appkit_ui_element_colors/macos`)
   - dynamic_color (from `Flutter/ephemeral/.symlinks/plugins/dynamic_color/macos`)
   - file_selector_macos (from `Flutter/ephemeral/.symlinks/plugins/file_selector_macos/macos`)
   - FlutterMacOS (from `Flutter/ephemeral`)
@@ -20,6 +23,8 @@ DEPENDENCIES:
   - url_launcher_macos (from `Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos`)
 
 EXTERNAL SOURCES:
+  appkit_ui_element_colors:
+    :path: Flutter/ephemeral/.symlinks/plugins/appkit_ui_element_colors/macos
   dynamic_color:
     :path: Flutter/ephemeral/.symlinks/plugins/dynamic_color/macos
   file_selector_macos:
@@ -34,6 +39,7 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/url_launcher_macos/macos
 
 SPEC CHECKSUMS:
+  appkit_ui_element_colors: 39bb2d80be3f19b152ccf4c70d5bbe6cba43d74a
   dynamic_color: 2eaa27267de1ca20d879fbd6e01259773fb1670f
   file_selector_macos: 468fb6b81fac7c0e88d71317f3eec34c3b008ff9
   FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
diff --git a/example/test/pages/alert_page_test.dart b/example/test/pages/alert_page_test.dart
new file mode 100644
index 0000000..0d8d26b
--- /dev/null
+++ b/example/test/pages/alert_page_test.dart
@@ -0,0 +1,98 @@
+import 'package:adaptive_dialog/adaptive_dialog.dart';
+import 'package:example/result_provider.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import '../util.dart';
+
+extension on WidgetTester {
+  Future<ProviderContainer> setUpAlert() => setup('Alert');
+  Future<void> openOkDialog() => open('OK Dialog');
+  Future<void> openOkCanPopFalseDialog() => open('OK Dialog (canPop: false)');
+  Future<void> openOkBarrierDismissibleFalseDialog() =>
+      open('OK Dialog (barrierDismissible: false)');
+}
+
+void main() {
+  group('OK Dialog', () {
+    testWidgets('OK', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkDialog();
+
+      expect(find.text('Title'), findsOneWidget);
+      expect(find.text('This is message.'), findsOneWidget);
+      await tester.tap(find.widgetWithText(TextButton, 'OK'));
+      await tester.pumpAndSettle();
+
+      expect(container.read(resultProvider), OkCancelResult.ok);
+    });
+    testWidgets('barrier', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkDialog();
+
+      await tester.tapBarrier();
+
+      expect(container.read(resultProvider), OkCancelResult.cancel);
+    });
+
+    testWidgets('maybePop', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkDialog();
+
+      final context = tester.element(find.text('Title'));
+      await Navigator.of(context).maybePop();
+      await tester.pumpAndSettle();
+
+      expect(container.read(resultProvider), OkCancelResult.cancel);
+    });
+  });
+
+  group('OK Dialog (canPop: false)', () {
+    testWidgets('OK', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkCanPopFalseDialog();
+
+      expect(find.text('Title'), findsOneWidget);
+      expect(find.text('This is message.'), findsOneWidget);
+      await tester.tap(find.widgetWithText(TextButton, 'OK'));
+      await tester.pumpAndSettle();
+
+      expect(container.read(resultProvider), OkCancelResult.ok);
+    });
+    testWidgets('maybePop', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkCanPopFalseDialog();
+
+      final context = tester.element(find.text('Title'));
+      await Navigator.of(context).maybePop();
+      await tester.pumpAndSettle();
+
+      expect(container.read(resultProvider), isNull);
+      expect(find.text('Title'), findsOneWidget);
+    });
+  });
+
+  group('OK Dialog (barrierDismissible: false)', () {
+    testWidgets('OK', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkBarrierDismissibleFalseDialog();
+
+      expect(find.text('Title'), findsOneWidget);
+      expect(find.text('This is message.'), findsOneWidget);
+      await tester.tap(find.widgetWithText(TextButton, 'OK'));
+      await tester.pumpAndSettle();
+
+      expect(container.read(resultProvider), OkCancelResult.ok);
+    });
+    testWidgets('barrier', (tester) async {
+      final container = await tester.setUpAlert();
+      await tester.openOkBarrierDismissibleFalseDialog();
+
+      await tester.tapBarrier();
+
+      expect(container.read(resultProvider), isNull);
+      expect(find.text('Title'), findsOneWidget);
+    });
+  });
+}
diff --git a/example/test/util.dart b/example/test/util.dart
new file mode 100644
index 0000000..80e6f4a
--- /dev/null
+++ b/example/test/util.dart
@@ -0,0 +1,31 @@
+import 'package:example/app.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+extension WidgetTesterX on WidgetTester {
+  Future<ProviderContainer> setup(String pageName) async {
+    final container = ProviderContainer();
+    addTearDown(container.dispose);
+    await pumpWidget(
+      ProviderScope(
+        parent: container,
+        child: const App(),
+      ),
+    );
+
+    await tap(find.widgetWithText(ListTile, pageName));
+    await pumpAndSettle();
+    return container;
+  }
+
+  Future<void> open(String label) async {
+    await tap(find.widgetWithText(ListTile, label));
+    await pumpAndSettle();
+  }
+
+  Future<void> tapBarrier() async {
+    await tapAt(Offset.zero);
+    await pumpAndSettle();
+  }
+}