Flutter Driver Control & Screenshot

# Flutter Driver Setup for E-Commerce App

## Key Components Added

### 1. Driver Extension Setup
```dart
import 'package:flutter_driver/driver_extension.dart';
import 'package:[APP_NAME]/main.dart' as app;

void main() {
  // Enable Flutter Driver extension
  enableFlutterDriverExtension(handler: (String message) async {
    if (message == 'capture_screenshot') {
      // Capture screenshot logic here
      return 'Screenshot captured';
    }
    return 'Unknown command';
  });
  app.main();
}
```

### 2. Test Configuration
```dart
import 'package:flutter_driver/flutter_driver.dart';
import 'package:test/test.dart';

void main() {
  group('E-Commerce App Tests', () {
    late FlutterDriver driver;

    setUpAll(() async {
      driver = await FlutterDriver.connect();
    });

    tearDownAll(() async {
      driver.close();
    });

    test('Verify product list loads', () async {
      await driver.waitFor(find.text('Featured Products'));
      await driver.tap(find.text('Add to Cart'));
      await driver.waitFor(find.text('Item added!'));
    });

    test('Capture product page screenshot', () async {
      await driver.tap(find.text('Products'));
      await driver.waitFor(find.text('Laptop'));
      // Trigger screenshot
      await driver.requestData('capture_screenshot');
    });
  });
}
```

### 3. Screenshot Utility
```dart
import 'dart:io';
import 'package:flutter/services.dart';
import 'package:image/image.dart' as img;

Future<void> captureScreenshot() async {
  final bytes = await FlutterDriver.instance.screenshot();
  final image = img.decodeImage(bytes)!;
  final screenshot = img.encodePng(image);
  await File('screenshots/${DateTime.now().millisecondsSinceEpoch}.png')
      .writeAsBytes(screenshot);
}
```

## Next Steps
- Run tests with: `flutter drive --driver=test_driver/app.dart --target=integration_test/app_test.dart`
- Review screenshots in the `screenshots/` directory
- Integrate with CI/CD pipeline for automated testing