Selenium for automation testing

Source: Dev.to

What is Selenium

Selenium is a free automated testing framework used to validate web applications across different browsers and platforms. You can use multiple programming languages such as Java, C#, Python, etc., to create Selenium test scripts.

Selenium components

• Selenium IDE
• Selenium RC
• Selenium WebDriver
• Selenium Grid

Why do we use Selenium for automation?

The need for Selenium arises from the limitations of manual testing. As applications grow in complexity and require frequent updates, manually testing every feature becomes time‑consuming and prone to human error. Selenium addresses this issue by enabling automated test scripts that can be executed repeatedly with high accuracy. It supports multiple browsers like Chrome, Firefox, Safari, and more.

Selenium closely mimics real user behavior on web applications. Unlike some testing tools that operate at the code level, Selenium interacts directly with the browser, ensuring realistic testing scenarios.

Relevance of Selenium in automation testing using Python

Selenium with Python enables quick test development, faster execution, and easier maintenance of test scripts. It also supports data‑driven testing, allowing testers to run the same test with multiple sets of input data.