Performance Driver

A Flutter package for running performance tests and generating detailed performance reports. This package helps developers analyze their app's performance metrics, including CPU usage, memory usage, widget build times, and frame rendering metrics.

Features

• Collects performance data using Flutter's integration test framework.
• Generates detailed markdown reports with performance metrics.
• Provides suggestions for performance improvements based on collected data.
• Supports custom performance baselines for tailored analysis.

Versions

The Performance Driver package offers two versions for running performance tests:

1. flutter_driver:

   • Uses the legacy flutter_driver package.
   • Suitable for apps that are not yet migrated to the new integration testing framework.
   • Provides a more traditional approach to UI testing.

2. integration_test:

   • Utilizes the newer integration_test package.
   • Recommended for new projects as it offers better performance and more features.
   • Supports more advanced testing scenarios and improved reporting.

Differences

Feature	flutter_driver	integration_test
Testing Framework	Legacy flutter_driver	New integration_test
Performance Reporting	Basic reporting capabilities	Detailed markdown reports
Test Execution	Slower due to legacy architecture	Faster and more efficient
API Support	Limited to older APIs	Full support for new APIs
Community Support	Less active	Actively maintained and updated

Getting Started

To use the Performance Driver package, follow these steps:

1. Add the dependency to your pubspec.yaml file:

   dependencies:
     perf_driver: ^0.0.1

2. Import the package in your Dart file:

   import 'package:perf_driver/perf_driver.dart';

3. Run performance tests by creating a sample driver file in your project.

Usage

To run performance tests, you can use the perfDriver function. Here’s an example of how to set it up:

import 'package:flutter/material.dart';
import 'package:perf_driver/perf_driver.dart';

void main() {
  perfDriver();
  // Or with custom baselines:
  // perfDriver(customBaselines: PerformanceBaselines(...));
}

Example of Running a Performance Test

You can wrap your integration test with the runPerformanceTest method to generate a performance report:

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:perf_driver/src/perf_src.dart';

Future<void> main() async {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();

  testWidgets('MyApp Tests', (tester) async {
      await runPerformanceTest(
    'My Performance Test',
    testWidget: MyApp(),
    tester: tester,
    callback: (binding, tester) async {
      // Interact with your app here
      await tester.pumpAndSettle();
    },
  );
});
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(title: Text('Performance Test')),
        body: Center(child: Text('Hello, World!')),
      ),
    );
  }
}

Additional Information

For more information on how to contribute to the package, file issues, or find more resources, please refer to the Dart documentation and the Flutter documentation.

License

This package is licensed under the MIT License. See the LICENSE file for more details.