flutter_probe_agent 0.5.3

On-device E2E test agent for FlutterProbe. Embeds in your Flutter app and executes test commands via direct widget-tree access with sub-50ms latency.

FlutterProbe Agent

On-device E2E test agent for FlutterProbe. Embeds in your Flutter app and receives test commands from the probe CLI via WebSocket or HTTP.

What is FlutterProbe?

FlutterProbe lets you write E2E tests in plain English:

test "user can log in"
  tap "Email"
  type "[e-mail]" into "Email"
  tap "Password"
  type "secret123" into "Password"
  tap "Sign In"
  wait until "Dashboard" appears
  see "Welcome"

Tests execute with sub-50ms command round-trips via direct widget-tree access — no UI automation layer, no WebDriver, no accessibility bridge.

Installation

Add to your pubspec.yaml:

dev_dependencies:
  flutter_probe_agent: ^0.5.1

Setup

Initialize the agent in your app's main.dart:

import 'package:flutter_probe_agent/flutter_probe_agent.dart';

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

  const probeEnabled = bool.fromEnvironment('PROBE_AGENT', defaultValue: false);
  if (probeEnabled) {
    await ProbeAgent.start();
  }

  runApp(const MyApp());
}

Build with the agent enabled:

flutter run --dart-define=PROBE_AGENT=true

The agent is completely inactive unless PROBE_AGENT=true is passed at build time. It adds zero overhead to your production app.

Physical Device Testing

For physical iOS devices, WiFi testing is recommended:

# Build with WiFi enabled
flutter build ios --profile \
  --dart-define=PROBE_AGENT=true \
  --dart-define=PROBE_WIFI=true

# Run tests over WiFi
probe test tests/ --host <device-ip> --token <probe-token>

Features

• WebSocket + HTTP transports — persistent connection for simulators, stateless HTTP for physical devices
• Profile mode support — works on physical iOS devices (not just debug)
• Release mode safeguards — blocked by default, opt-in with allowReleaseBuild: true
• Ping/pong keepalive — prevents idle connection drops
• WiFi testing — bind to 0.0.0.0 with PROBE_WIFI=true for cable-free testing
• Pre-shared restart token — restart the app works over WiFi without USB log reading

Documentation

• Getting Started
• ProbeScript Syntax
• ProbeScript Dictionary
• iOS Integration Guide
• CLI Reference

Requirements

• Flutter 3.19+ (tested up to 3.41)
• Dart 3.3+
• FlutterProbe CLI (probe binary)

License

Business Source License 1.1

Publisher

Built by Alpha Wave Systems in Guadalajara, Mexico.