Creating a Flutter Web application and building a Blackbox test automation

Flutter is a powerful UI toolkit that allows you to build natively compiled mobile, web, and desktop applications from a single codebase. In this article, we’ll create a simple Flutter app that demonstrates basic state management by implementing increment and decrement functionalities for a counter.

Step-by-Step Guide

Step 1: Setting Up the Flutter Environment

Before we begin, ensure that you have Flutter installed on your machine. If not, you can follow the [official Flutter installation guide](https://flutter.dev/docs/get-started/install).

Step 2: Creating a New Flutter Project

Open your terminal and run the following command to create a new Flutter project:

flutter create counter_app

Navigate into your project directory:

cd counter_app

Step 3: Writing the Flutter Code

Replace the contents of `lib/main.dart` with the following code

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

void main() {
  runApp(const MyApp());
  RendererBinding.instance.ensureSemantics();
}

class MyApp extends StatelessWidget {
  const…