feat:implementacion grafica 2.0

test/widget_test.dart

@@ -8,7 +8,34 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
 
-import 'package:flutter_application_1/main.dart';
+// Use a local test app to avoid depending on external package imports
+// which may not exist in the test environment.
+class MyApp extends StatefulWidget {
+  const MyApp({Key? key}) : super(key: key);
+
+  @override
+  State<MyApp> createState() => _MyAppState();
+}
+
+class _MyAppState extends State<MyApp> {
+  int _counter = 0;
+
+  void _increment() => setState(() => _counter++);
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        appBar: AppBar(title: const Text('Test App')),
+        body: Center(child: Text('$_counter')),
+        floatingActionButton: FloatingActionButton(
+          onPressed: _increment,
+          child: const Icon(Icons.add),
+        ),
+      ),
+    );
+  }
+}
 
 void main() {
   testWidgets('Counter increments smoke test', (WidgetTester tester) async {