Selenium 2 is the newest addition to the Selenium toolkit. This brand-new automation tool provides all sorts of test features, including a more cohesive and object-oriented API as well as an answer to the limitations of the old implementation. Selenium2Library is a popular Robot Framework test library. Selenium2Library runs tests in a real browser instance which works with most modern browsers and is used with both Python and Jython interpreters.
Selenium is a set of different software tools each with a different approach to supporting test automation. The entire suite of tools results in a rich set of testing functions specifically geared to the needs of testing web applications of all types. One of Selenium’s key features is the support for executing one’s tests on multiple browser platforms.
Selenium is highly flexible as there are many ways one can add functionality to both Selenium test scripts and Selenium’s framework to customize test automation. Since Selenium is Open Source, the source code can always be downloaded and modified. Operations performed are highly flexible, allowing many options for locating UI elements and comparing expected test results against actual application behavior. This is perhaps Selenium’s greatest strength when compared with other automation tools.