What is Selenium? How does it work?

I-Hub Talent: The Best Testing Tools Training Institute in Hyderabad

If you're searching for the best Testing Tools training institute in Hyderabad, I-Hub Talent is the perfect choice. Our comprehensive training program covers Manual Testing, Automation Testing, Selenium, JUnit, TestNG, API Testing, Performance Testing, and CI/CD Integration. Designed for both beginners and professionals, our course helps you master the latest software testing methodologies and industry-standard tools.

At I-Hub Talent, we focus on real-time projects, hands-on practice, and expert mentorship to ensure you gain practical knowledge. Our course includes training on LoadRunner, JMeter, Postman, Appium, and security testing to make you job-ready. With 100% placement assistance, interview preparation, and certification guidance, we help students build successful careers in the testing domain.

Join I-Hub Talent’s Testing Tools training in Hyderabad and enhance your skills in software testing, automation frameworks, and quality assurance with expert trainers and industry-driven learning.

Selenium is an open-source suite of tools designed for automating web browsers. It’s widely used for testing web applications to ensure they behave as expected across different browsers and platforms.

What is Selenium?

Selenium consists of several components:

  • Selenium WebDriver: Core tool for browser automation, allowing scripts to control browser actions.

  • Selenium IDE: A browser extension for recording and playback of tests.

  • Selenium Grid: Enables running tests on multiple machines and browsers in parallel.

How does Selenium work?

Selenium automates browsers by sending commands to control browser behavior through browser-specific drivers. Here’s the basic workflow:

  1. Test Script: You write test scripts in languages like Java, Python, C#, etc., using Selenium APIs.

  2. WebDriver: The script communicates with the WebDriver (e.g., ChromeDriver for Chrome), which acts as a bridge between your code and the browser.

  3. Browser Driver: The WebDriver sends commands to the browser driver.

  4. Browser Execution: The driver executes commands in the browser—like clicking buttons, entering text, or navigating pages—and returns results back to the script.

  5. Assertions: The script validates the output, ensuring the app behaves as expected.

Selenium supports all major browsers and platforms, making it versatile for cross-browser testing. It simulates real user interactions, making it effective for functional and regression testing of web applications.

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