Create files to test integration testing

test_driver/driver/category_list.dart

@@ -0,0 +1,7 @@
+import 'package:crud_todo_app/main.dart' as app;
+import 'package:flutter_driver/driver_extension.dart';
+
+void main() {
+  enableFlutterDriverExtension();
+  app.main();
+}

test_driver/driver/category_list_test.dart

@@ -0,0 +1,22 @@
+import 'package:crud_todo_app/ui/category_list_view.dart';
+import 'package:flutter_driver/flutter_driver.dart' as test_driver;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  group('$CategoryListView test', () {
+    late test_driver.FlutterDriver driver;
+
+    setUpAll(() async {
+      driver = await test_driver.FlutterDriver.connect();
+    });
+
+    tearDownAll(() async {
+      await driver.close();
+    });
+
+    test('Verify empty list message', () async {
+      final emptyMessage = test_driver.find.text('Empty data, add a category');
+      await driver.waitFor(emptyMessage);
+    });
+  });
+}