Until step 2.6: :)

Read steps for more details.

Steps

@@ -15,4 +15,72 @@
        <<
     1.3.  Add Links.txt file.
     1.4.  Checkout in other station ==> Must re run 1.1. steps again. (I don't Know why)
+    1.5.  After a while, i read the document. Now updated some dependencies and starting
+          use riverpod again.
+          Now I know many things about it, but riverpod learning curve is not good.
+          Flutter was better but not good at result. I will stick on learning curve before
+          developing the app.
+
+2.  https://riverpod.dev/docs/essentials/first_request
+    2.1. Install freezed using this commands:
+         (using https://github.com/rrousselGit/freezed?tab=readme-ov-file#install)
+        >>
+        flutter pub add freezed_annotation
+        flutter pub add dev:build_runner
+        flutter pub add dev:freezed
+        flutter pub add json_annotation
+        flutter pub add dev:json_serializable
+        <<
+        install flutterX & FlutterAssetsGenerator & freezed plugins.
+    2.2. Add model for utc and random endpoints.
+         Do these steps for any JSON, request or response.
+             Use snippet freezedClass, then use @freezed menu, then "Json From Freezed"
+             then paste,then click the button --> then change class name, file name, path then save.
+             Now paste in this
+                 import 'package:flutter/foundation.dart';
+               to generated file.
+             Now use @freezed menu, then "Run Build Runner".
+    2.3. Run command
+          >>
+          flutter pub add http
+          <<
+    2.4.  New file then paste this code. For random API. (GET http://localhost:3000/p/random)
+          >>
+              import 'dart:convert';
+              import 'package:http/http.dart' as http;
+              import 'package:riverpod_annotation/riverpod_annotation.dart';
+              import '../model/my_random.dart';
+
+              // Necessary for code-generation to work
+              part 'provider.g.dart';
+
+              /// This will create a provider named `activityProvider`
+              /// which will cache the result of this function.
+              @riverpod
+              Future<MyRandom> getMyRandom(GetMyRandomRef ref) async {
+                // Using package:http, we fetch a random activity from the Bored API.
+                final response = await http.get(Uri.https('localhost:3000', '/p/random'));
+                // Using dart:convert, we then decode the JSON payload into a Map data structure.
+                final json = jsonDecode(response.body) as Map<String, dynamic>;
+                // Finally, we convert the Map into an Activity instance.
+                return MyRandom.fromJson(json);
+              }
+          <<
+          Check the pattern should be with this format:
+                  @riverpod
+                  Result myFunction(MyFunctionRef ref) {
+                    <your logic here>
+                  }
+              myFunction and MyFunctionRef
+              xabcd      and XabcdRef
+
+    2.5. Create a widget with data.
+         it is simple using these line of code
+             final AsyncValue<MyRandom> myRandom = ref.watch(getMyRandomProvider);
+           that serves data as a aysncvalue.
+           there is a sample in widgets/simples folder.
+
+    Note: Continue from "Going further" in "https://riverpod.dev/docs/essentials/first_request"
+
+
 

analysis_options.yaml

@@ -9,6 +9,10 @@
 # packages, and plugins designed to encourage good coding practices.
 include: package:flutter_lints/flutter.yaml
 
+analyzer:
+  errors:
+    invalid_annotation_target: ignore
+
 linter:
   # The lint rules applied to this project can be customized in the
   # section below to disable rules from the `package:flutter_lints/flutter.yaml`

lib/generated/assets.dart

@@ -0,0 +1,5 @@
+///This file is automatically generated. DO NOT EDIT, all your changes would be lost.
+class Assets {
+  Assets._();
+
+}

lib/main.dart

@@ -1,125 +0,0 @@
-import 'package:flutter/material.dart';
-
-void main() {
-  runApp(const MyApp());
-}
-
-class MyApp extends StatelessWidget {
-  const MyApp({super.key});
-
-  // This widget is the root of your application.
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      title: 'Flutter Demo',
-      theme: ThemeData(
-        // This is the theme of your application.
-        //
-        // TRY THIS: Try running your application with "flutter run". You'll see
-        // the application has a purple toolbar. Then, without quitting the app,
-        // try changing the seedColor in the colorScheme below to Colors.green
-        // and then invoke "hot reload" (save your changes or press the "hot
-        // reload" button in a Flutter-supported IDE, or press "r" if you used
-        // the command line to start the app).
-        //
-        // Notice that the counter didn't reset back to zero; the application
-        // state is not lost during the reload. To reset the state, use hot
-        // restart instead.
-        //
-        // This works for code too, not just values: Most code changes can be
-        // tested with just a hot reload.
-        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
-        useMaterial3: true,
-      ),
-      home: const MyHomePage(title: 'Flutter Demo Home Page'),
-    );
-  }
-}
-
-class MyHomePage extends StatefulWidget {
-  const MyHomePage({super.key, required this.title});
-
-  // This widget is the home page of your application. It is stateful, meaning
-  // that it has a State object (defined below) that contains fields that affect
-  // how it looks.
-
-  // This class is the configuration for the state. It holds the values (in this
-  // case the title) provided by the parent (in this case the App widget) and
-  // used by the build method of the State. Fields in a Widget subclass are
-  // always marked "final".
-
-  final String title;
-
-  @override
-  State<MyHomePage> createState() => _MyHomePageState();
-}
-
-class _MyHomePageState extends State<MyHomePage> {
-  int _counter = 0;
-
-  void _incrementCounter() {
-    setState(() {
-      // This call to setState tells the Flutter framework that something has
-      // changed in this State, which causes it to rerun the build method below
-      // so that the display can reflect the updated values. If we changed
-      // _counter without calling setState(), then the build method would not be
-      // called again, and so nothing would appear to happen.
-      _counter++;
-    });
-  }
-
-  @override
-  Widget build(BuildContext context) {
-    // This method is rerun every time setState is called, for instance as done
-    // by the _incrementCounter method above.
-    //
-    // The Flutter framework has been optimized to make rerunning build methods
-    // fast, so that you can just rebuild anything that needs updating rather
-    // than having to individually change instances of widgets.
-    return Scaffold(
-      appBar: AppBar(
-        // TRY THIS: Try changing the color here to a specific color (to
-        // Colors.amber, perhaps?) and trigger a hot reload to see the AppBar
-        // change color while the other colors stay the same.
-        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
-        // Here we take the value from the MyHomePage object that was created by
-        // the App.build method, and use it to set our appbar title.
-        title: Text(widget.title),
-      ),
-      body: Center(
-        // Center is a layout widget. It takes a single child and positions it
-        // in the middle of the parent.
-        child: Column(
-          // Column is also a layout widget. It takes a list of children and
-          // arranges them vertically. By default, it sizes itself to fit its
-          // children horizontally, and tries to be as tall as its parent.
-          //
-          // Column has various properties to control how it sizes itself and
-          // how it positions its children. Here we use mainAxisAlignment to
-          // center the children vertically; the main axis here is the vertical
-          // axis because Columns are vertical (the cross axis would be
-          // horizontal).
-          //
-          // TRY THIS: Invoke "debug painting" (choose the "Toggle Debug Paint"
-          // action in the IDE, or press "p" in the console), to see the
-          // wireframe for each widget.
-          mainAxisAlignment: MainAxisAlignment.center,
-          children: <Widget>[
-            const Text(
-              'You have pushed the button this many times:',
-            ),
-            Text(
-              '$_counter',
-              style: Theme.of(context).textTheme.headlineMedium,
-            ),
-          ],
-        ),
-      ),
-      floatingActionButton: FloatingActionButton(
-        onPressed: _incrementCounter,
-        tooltip: 'Increment',
-        child: const Icon(Icons.add),
-      ), // This trailing comma makes auto-formatting nicer for build methods.
-    );
-  }
-}

lib/mains/gt.dart

@@ -0,0 +1,49 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import '../widgets/simples/random.dart';
+
+part 'gt.g.dart';
+
+// We create a "provider", which will store a value (here "Hello world").
+// By using a provider, this allows us to mock/override the value exposed.
+@riverpod
+String helloWorld(HelloWorldRef ref) {
+  return 'Hello world';
+}
+
+void main() {
+  runApp(
+    // For widgets to be able to read providers, we need to wrap the entire
+    // application in a "ProviderScope" widget.
+    // This is where the state of our providers will be stored.
+    ProviderScope(
+      child: MyApp(),
+    ),
+  );
+}
+
+// Extend ConsumerWidget instead of StatelessWidget, which is exposed by Riverpod
+class MyApp extends ConsumerWidget {
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    final String value = ref.watch(helloWorldProvider);
+
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(title: const Text('Example')),
+        body: Center(
+          child: Column(
+            children: <Widget>[
+              Expanded(child: Text('1')),
+              Expanded(child: Text(value)),
+              Expanded(child: RandomWidget())
+            ],
+          )
+
+        ),
+      ),
+    );
+  }
+}

lib/outerapi/auth/call/getRandomData.dart

@@ -0,0 +1,24 @@
+
+// GET http://localhost:3000/p/random
+
+import 'dart:convert';
+import 'dart:io';
+import 'package:http/http.dart' as http;
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+import '../model/my_random.dart';
+
+// Necessary for code-generation to work
+part 'getRandomData.g.dart';
+
+/// This will create a provider named `activityProvider`
+/// which will cache the result of this function.
+@riverpod
+Future<MyRandom> getMyRandom(GetMyRandomRef ref) async {
+  // Using package:http, we fetch a random activity from the Bored API.
+  var ur = Uri.http('192.168.160.207:3000', '/p/random');
+  final response = await http.get(ur);
+  // Using dart:convert, we then decode the JSON payload into a Map data structure.
+  final json = jsonDecode(response.body) as Map<String, dynamic>;
+  // Finally, we convert the Map into an Activity instance.
+  return MyRandom.fromJson(json);
+}

lib/outerapi/auth/model/my_random.dart

@@ -0,0 +1,22 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:flutter/foundation.dart';
+
+part 'my_random.freezed.dart';
+part 'my_random.g.dart';
+
+@freezed
+class MyRandom with _$MyRandom {
+	const MyRandom._();
+
+	const factory MyRandom({
+		@JsonKey(name: 'complexV') @Default('') String complexv,
+		@JsonKey(name: 'floatV') @Default(0) num floatv,
+		@JsonKey(name: 'intV') @Default(0) num intv,
+		@JsonKey(name: 'nowV') @Default(0) num nowv
+	}) = _MyRandom;
+
+	 factory MyRandom.fromJson(Map<String,dynamic> json) => _$MyRandomFromJson(json);
+
+}
+
+

lib/outerapi/auth/model/time.dart

@@ -0,0 +1,17 @@
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:flutter/foundation.dart';
+
+part 'time.freezed.dart';
+part 'time.g.dart';
+
+
+@freezed
+class ServerTime with _$ServerTime {
+  const ServerTime._();
+
+  const factory ServerTime({@JsonKey(name: 'utc') @Default('') String utc}) =
+      _ServerTime;
+
+  factory ServerTime.fromJson(Map<String, dynamic> json) =>
+      _$ServerTimeFromJson(json);
+}

lib/widgets/simples/random.dart

@@ -0,0 +1,32 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:riverpod_flutter_tuts/outerapi/auth/call/getRandomData.dart';
+
+import '../../outerapi/auth/model/my_random.dart';
+
+
+/// The homepage of our application
+class RandomWidget extends StatelessWidget {
+  const RandomWidget({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Consumer(
+      builder: (context, ref, child) {
+
+        final AsyncValue<MyRandom> myRandom = ref.watch(getMyRandomProvider);
+
+        return Center(
+          child: switch (myRandom) {
+            AsyncData(:final MyRandom value ) => Text(
+                'myRandom: ${value}'
+            ),
+            AsyncError() => const Text('Oops, something unexpected happened'),
+            _ => const CircularProgressIndicator(),
+
+          },
+        );
+      },
+    );
+  }
+}

pubspec.lock

@@ -69,10 +69,10 @@ packages:
     dependency: transitive
     description:
       name: build_daemon
-      sha256: "0343061a33da9c5810b2d6cee51945127d8f4c060b7fbdd9d54917f0a3feaaa1"
+      sha256: "79b2aef6ac2ed00046867ed354c88778c9c0f029df8a20fe10b5436826721ef9"
       url: "https://pub.dev"
     source: hosted
-    version: "4.0.1"
+    version: "4.0.2"
   build_resolvers:
     dependency: transitive
     description:
@@ -85,18 +85,18 @@ packages:
     dependency: "direct dev"
     description:
       name: build_runner
-      sha256: "3ac61a79bfb6f6cc11f693591063a7f19a7af628dc52f141743edac5c16e8c22"
+      sha256: "644dc98a0f179b872f612d3eb627924b578897c629788e858157fa5e704ca0c7"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.9"
+    version: "2.4.11"
   build_runner_core:
     dependency: transitive
     description:
       name: build_runner_core
-      sha256: "4ae8ffe5ac758da294ecf1802f2aff01558d8b1b00616aa7538ea9a8a5d50799"
+      sha256: e3c79f69a64bdfcd8a776a3c28db4eb6e3fb5356d013ae5eb2e52007706d5dbe
       url: "https://pub.dev"
     source: hosted
-    version: "7.3.0"
+    version: "7.3.1"
   built_collection:
     dependency: transitive
     description:
@@ -258,10 +258,10 @@ packages:
     dependency: "direct dev"
     description:
       name: flutter_lints
-      sha256: a25a15ebbdfc33ab1cd26c63a6ee519df92338a9c10f122adda92938253bef04
+      sha256: "3f41d009ba7172d5ff9be5f6e6e6abb4300e263aab8866d2a0842ed2a70f8f0c"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.3"
+    version: "4.0.0"
   flutter_riverpod:
     dependency: "direct main"
     description:
@@ -275,14 +275,22 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  freezed_annotation:
+  freezed:
-    dependency: transitive
+    dependency: "direct dev"
     description:
-      name: freezed_annotation
+      name: freezed
-      sha256: c3fd9336eb55a38cc1bbd79ab17573113a8deccd0ecbbf926cca3c62803b5c2d
+      sha256: a434911f643466d78462625df76fd9eb13e57348ff43fe1f77bbe909522c67a1
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.1"
+    version: "2.5.2"
+  freezed_annotation:
+    dependency: "direct main"
+    description:
+      name: freezed_annotation
+      sha256: f9f6597ac43cc262fa7d7f2e65259a6060c23a560525d1f2631be374540f2a9b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.3"
   frontend_server_client:
     dependency: transitive
     description:
@@ -315,6 +323,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.2.0"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      sha256: "761a297c042deedc1ffbb156d6e2af13886bb305c2a343a4d972504cd67dd938"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.1"
   http_multi_server:
     dependency: transitive
     description:
@@ -348,45 +364,53 @@ packages:
     source: hosted
     version: "0.7.1"
   json_annotation:
-    dependency: transitive
+    dependency: "direct main"
     description:
       name: json_annotation
       sha256: "1ce844379ca14835a50d2f019a3099f419082cfdd231cd86a142af94dd5c6bb1"
       url: "https://pub.dev"
     source: hosted
     version: "4.9.0"
+  json_serializable:
+    dependency: "direct dev"
+    description:
+      name: json_serializable
+      sha256: ea1432d167339ea9b5bb153f0571d0039607a873d6e04e0117af043f14a1fd4b
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.8.0"
   leak_tracker:
     dependency: transitive
     description:
       name: leak_tracker
-      sha256: "78eb209deea09858f5269f5a5b02be4049535f568c07b275096836f01ea323fa"
+      sha256: "7f0df31977cb2c0b88585095d168e689669a2cc9b97c309665e3386f3e9d341a"
       url: "https://pub.dev"
     source: hosted
-    version: "10.0.0"
+    version: "10.0.4"
   leak_tracker_flutter_testing:
     dependency: transitive
     description:
       name: leak_tracker_flutter_testing
-      sha256: b46c5e37c19120a8a01918cfaf293547f47269f7cb4b0058f21531c2465d6ef0
+      sha256: "06e98f569d004c1315b991ded39924b21af84cf14cc94791b8aea337d25b57f8"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.1"
+    version: "3.0.3"
   leak_tracker_testing:
     dependency: transitive
     description:
       name: leak_tracker_testing
-      sha256: a597f72a664dbd293f3bfc51f9ba69816f84dcd403cdac7066cb3f6003f3ab47
+      sha256: "6ba465d5d76e67ddf503e1161d1f4a6bc42306f9d66ca1e8f079a47290fb06d3"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.1"
+    version: "3.0.1"
   lints:
     dependency: transitive
     description:
       name: lints
-      sha256: "0a217c6c989d21039f1498c3ed9f3ed71b354e69873f13a8dfc3c9fe76f1b452"
+      sha256: "976c774dd944a42e83e2467f4cc670daef7eed6295b10b36ae8c85bcbf828235"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.1"
+    version: "4.0.0"
   logging:
     dependency: transitive
     description:
@@ -415,10 +439,10 @@ packages:
     dependency: transitive
     description:
       name: meta
-      sha256: d584fa6707a52763a52446f02cc621b077888fb63b93bbcb1143a7be5a0c0c04
+      sha256: "7687075e408b093f36e6bbf6c91878cc0d4cd10f409506f7bc996f68220b9136"
       url: "https://pub.dev"
     source: hosted
-    version: "1.11.0"
+    version: "1.12.0"
   mime:
     dependency: transitive
     description:
@@ -527,10 +551,10 @@ packages:
     dependency: transitive
     description:
       name: shelf_web_socket
-      sha256: "9ca081be41c60190ebcb4766b2486a7d50261db7bd0f5d9615f2d653637a84c1"
+      sha256: "073c147238594ecd0d193f3456a5fe91c4b0abbcc68bf5cd95b36c4e194ac611"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.4"
+    version: "2.0.0"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -544,6 +568,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.5.0"
+  source_helper:
+    dependency: transitive
+    description:
+      name: source_helper
+      sha256: "6adebc0006c37dd63fe05bca0a929b99f06402fc95aa35bf36d67f5c06de01fd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.4"
   source_span:
     dependency: transitive
     description:
@@ -612,10 +644,10 @@ packages:
     dependency: transitive
     description:
       name: test_api
-      sha256: "5c2f730018264d276c20e4f1503fd1308dfbbae39ec8ee63c5236311ac06954b"
+      sha256: "9955ae474176f7ac8ee4e989dadfb411a58c30415bcfb648fa04b2b8a03afa7f"
       url: "https://pub.dev"
     source: hosted
-    version: "0.6.1"
+    version: "0.7.0"
   timing:
     dependency: transitive
     description:
@@ -636,10 +668,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: "814e9e88f21a176ae1359149021870e87f7cddaf633ab678a5d2b0bff7fd1ba8"
+      sha256: "83d37c7ad7aaf9aa8e275490669535c8080377cfa7a7004c24dfac53afffaa90"
       url: "https://pub.dev"
     source: hosted
-    version: "4.4.0"
+    version: "4.4.2"
   vector_math:
     dependency: transitive
     description:
@@ -652,10 +684,10 @@ packages:
     dependency: transitive
     description:
       name: vm_service
-      sha256: b3d56ff4341b8f182b96aceb2fa20e3dcb336b9f867bc0eafc0de10f1048e957
+      sha256: "3923c89304b715fb1eb6423f017651664a03bf5f4b29983627c4da791f74a4ec"
       url: "https://pub.dev"
     source: hosted
-    version: "13.0.0"
+    version: "14.2.1"
   watcher:
     dependency: transitive
     description:
@@ -672,14 +704,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.5.1"
+  web_socket:
+    dependency: transitive
+    description:
+      name: web_socket
+      sha256: "24301d8c293ce6fe327ffe6f59d8fd8834735f0ec36e4fd383ec7ff8a64aa078"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.1.5"
   web_socket_channel:
     dependency: transitive
     description:
       name: web_socket_channel
-      sha256: "58c6666b342a38816b2e7e50ed0f1e261959630becd4c879c4f26bfa14aa5a42"
+      sha256: a2d56211ee4d35d9b344d9d4ce60f362e4f5d1aafb988302906bd732bc731276
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.5"
+    version: "3.0.0"
   yaml:
     dependency: transitive
     description:
@@ -689,5 +729,5 @@ packages:
     source: hosted
     version: "3.1.2"
 sdks:
-  dart: ">=3.3.0 <4.0.0"
+  dart: ">=3.4.0 <4.0.0"
-  flutter: ">=3.0.0"
+  flutter: ">=3.18.0-18.0.pre.54"

pubspec.yaml

@@ -37,6 +37,9 @@ dependencies:
   cupertino_icons: ^1.0.2
   flutter_riverpod: ^2.5.1
   riverpod_annotation: ^2.3.5
+  freezed_annotation: ^2.4.3
+  json_annotation: ^4.9.0
+  http: ^1.2.1
 
 dev_dependencies:
   flutter_test:
@@ -47,11 +50,13 @@ dev_dependencies:
   # activated in the `analysis_options.yaml` file located at the root of your
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
-  flutter_lints: ^2.0.0
+  flutter_lints: ^4.0.0
   riverpod_generator: ^2.4.0
-  build_runner: ^2.4.9
+  build_runner: ^2.4.11
   custom_lint: ^0.6.4
   riverpod_lint: ^2.3.10
+  freezed: ^2.5.2
+  json_serializable: ^6.8.0
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
@@ -94,3 +99,6 @@ flutter:
   #
   # For details regarding fonts from package dependencies,
   # see https://flutter.dev/custom-fonts/#from-packages
+  assets:
+    - assets/image/
+

test/widget_test.dart

@@ -1,30 +0,0 @@
-// This is a basic Flutter widget test.
-//
-// To perform an interaction with a widget in your test, use the WidgetTester
-// utility in the flutter_test package. For example, you can send tap and scroll
-// gestures. You can also use WidgetTester to find child widgets in the widget
-// tree, read text, and verify that the values of widget properties are correct.
-
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-
-import 'package:riverpod_flutter_tuts/main.dart';
-
-void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(const MyApp());
-
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
-
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
-
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
-  });
-}