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In today’s software development landscape, automated testing has become essential for delivering robust applications efficiently. Among various automated testing tools,   Selenium   stands out as one of the most widely used and beginner-friendly options. As you embark on your journey into automated testing, it’s crucial to understand the   what, where, when, and why   of using Selenium. In this guide we will run through these essentials and help you decide if Selenium is the right tool for you. What is Selenium? Selenium  is an open-source framework used primarily for automating web browsers. It enables developers and testers to write scripts that interact with websites, simulating actions like clicking buttons, filling out forms, and navigating pages, which allows for comprehensive automated testing. Selenium supports multiple programming languages, including Python, Java, C#, and JavaScript, making it flexible for teams with different coding preferences. Key Components of Selenium: S

API testing is essential to ensure your endpoints behave as expected across all scenarios. In this guide, we’ll explore how to use Jest and Supertest to test a sample API with various response types, including success, authentication errors, and validation errors. By the end, you’ll understand how to apply these tools to check for different response structures and status codes. 0. Prerequisites: Setting Up Your Environment Before diving into API testing, it’s important to ensure that your development environment is properly set up. Here’s what you need to do: Step 1: Install Node.js and npm Node.js  is a JavaScript runtime that allows you to run JavaScript code on the server side. It comes with  npm  (Node Package Manager), which helps you install and manage packages. Installation Steps: Download and install Node.js from the  official website . To verify the installation, open your terminal and run: node -v npm -v This should display the installed versions of Node.js and npm. Step 2: C