Introduction to Selenium

Hi Friends................ :)

 Today we are going to look a famous testing tool Selenium. Selenium is a popular open-source web based automation tool. It is used fir automating web-based applications.

 It consists of,
1. Selenium Integrated Development Environment (IDE)
2. Selenium Remote Control (RC)
3. WebDriver
4. Selenium Grid
Advantages
Selenium is a suite of tools that helps in automating only web applications. You should have a basic understanding of Java or any other object-oriented programming language for using Selenium.It has capabilities to operate across different browsers and operating systems.
Selenium IDE -a Firefox plugin that lets testers to record their actions as they follow the workflow that they need to test.

 Selenium RC-was the flagship testing framework that allowed more than simple browser actions and linear execution. It makes use of the full power of programming languages such as Java, C#, PHP, Python, Ruby and PERL to create more complex tests.
Selenium WebDriver-is the successor to Selenium RC which sends commands directly to the browser and retrieves results.
Selenium Grid-is a tool used to run parallel tests across different machines and different browsers simultaneously which results in minimized execution time.

 Disadvantages
Supports only web based applications.
No IDE, so the script development won't be fast
Cannot access controls within the browser.
No default test report generation.

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