Selenium Tutorial

This tutorial gives you an overview and talks about the fundamentals of Selenium.

SELENIUM INTRODUCTION

What is Automation Testing?

>>Test automation has grown in popularity over the years because teams do not have the time or money to invest in large test teams to make sure that applications work as they are expected to. Developers also want to make sure that the code they have created works as they expect it to.
>>Developers use a multitude of different testing frameworks to test different aspects of the system. Selenium is one of the most well?known testing frameworks in the world that is in use. It is an open source project that allows testers and developers alike to develop functional tests to drive the browser. It can be used to record workflows so that developers can prevent future regressions of code. Selenium can work on any browser that supports JavaScript since Selenium has been built using JavaScript.

>>Software applications today are written as web?based applications to be run in an Internet browser. The effectiveness of testing these applications varies widely among companies and organizations. In an era of highly interactive and responsive software processes where many organizations are using some form of Agile methodology, test automation is frequently becoming a requirement for software projects. Test automation is often the answer. Test automation means using a software tool to run repeatable tests against the application to be tested. For regression testing this provides that responsiveness.

What is the use of Automation Testing?

There are many advantages to test automation.
Most are related to the repeatability of the tests and the speed at which the tests can be executed.
There are a number of commercial and open source tools available for assisting with the development of test automation.
Selenium is possibly the most widely?used open source solution.
Frequent regression testing
Rapid feedback to developers
Virtually unlimited iterations of test case execution
Support for Agile and extreme development methodologies
Disciplined documentation of test cases
Customized defect reporting
Finding defects missed by manual testing

What we need to Automate?

It is not always advantageous to automate test cases. There are times when manual testing may be more appropriate. For instance, if the application’s user interface will change considerably in the near future, then any automation might need to be rewritten anyway.

When Automation is not Recommended?

Sometimes there simply is not enough time to build test automation.
For the short term, manual testing may be more effective.
If an application has a very tight deadline, there is currently no test automation available, and it’s imperative that the testing get done within that time frame, then manual testing is the best solution. 

WHAT IS SELENIUM?

The Selenium IDE (Integrated Development Environment) is an open source record-and-playback tool for generating Selenium scripts, which is integrated with the Firefox web browser as an extension. It is a renovmed web-based UI test automation tool that extracts any kind of locator from the web page. The locators can be either attribute-based or structure-based, and include ID, name, link, XPath, CBS, and DOM. The IDE has the entire Selenium Core, which allows the users to record, playback, edit, and debug tests manually in a browser. The user actions in the web page can be recorded and exported in any of the most popular languages, such as Java, C++, Ruby, and Python.
Selenium Builder is an alternative open source tool for the Selenium IDE to record and playback web applications. It is an extension of the Firefox web browser, which is similar to the Selenium IDE, but, it has some unique features that the Selenium IDE doesn’t support. Selenium Builder is a standard tool from Sauce labs that runs tests on Sauce Cloud from the Selenium Bader interface itself.

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