What is Selenium? Getting started with Selenium




Selenium Automation Testing has become remarkably popular with testers due to the several benefits it gives. When we speak about automation testing, the very first thing often comes to mind is that our favourite automation testing instrument. But it gained the hearts of several testers and programmers using its simplicity, accessibility, and ease of usage.

With its debut in 2004, Selenium created the lifetime of automation trainee simpler and is currently a favourite tool for several automation testers. So, without further delay, let us get to understand what is Selenium testing and how it aids in automation testing.

Selenium was devised with the introduction of a fundamental tool called as"JavaScriptTestRunner", by Jason Huggins in ThoughtWorks to check their inner Timing and Expenses program. It has gained recognition among software testers and programmers within an open-source mobile automation testing frame. It has the capacity to automate browsers using particular browser bindings for automating internet applications for testing purposes. It's a package of four tools made for different functions. Let us get to learn about Selenium in detail and the various tools it provides.

It's 4 key components with another strategy for automation testing that's popular since the Selenium package of tools. Every software tester or developer selects tools from it based on the testing requirement for your organization.

Selenium Core has been the very first tool in the Package of tools. But, it had been deprecated since it had any problems linked to cross-domain testing due to the same-origin policy. Thus, to conquer that Selenium Remote Control (Selenium RC) was released following Selenium core. RC turned out as an help to the cross-domain matter. RC comes with an HTTP proxy host which assists in befooling the browser to thinking the Selenium heart and Internet program which has been analyzed are in precisely the exact same domain hence eliminating the cross-domain matter.

Selenium RC is split into two components which help in beating the cross-domain problem:

However, the significant difficulty with RC was that the time required to perform a test. Since the Selenium server communicates with HTTP requests, it had been time-consuming. As a result of this restriction, RC is currently much in use.

Selenium IDE, previously called Selenium recorder, is an instrument used to record, edit, debug and execute functional tests. Selenium IDE is employed as an extension to your Chrome browser and add on in Firefox browser. Together with the Selenium IDE plugin, you can export and record evaluations from any of the programming languages such as Ruby, Java, PHP, Javascript, etc..

Selenium Grid relies on Hub-node architecture. Together with Selenium Grid, it is possible to conduct concurrent evaluation sessions across various browsers. Hub controls Selenium scripts running on different nodes(special browser within an OS) and examine scripts running on different nodes could be written in almost any programming language.

Selenium Grid was used with RC to examine numerous evaluations on remote machines. Nowadays, as folks locate Webdriver greater than RC, thus Grid functions with both Webdriver and RC.

Selenium Webdriver is a improved variant of Selenium RC and also the most used instrument. It takes orders via customer API and sends them . In other words, Selenium Webdriver is a browser-specific driver which aids in accessing and launch the various browsers. It offers an interface to compose and run scripts. Each browser has different drivers to conduct tests.

·         Mozilla Firefox utilizes Firefox Driver (Gecko Notebook )
·         Google Chrome utilizes Chrome Driver
·         Internet Explorer utilizes Internet Explorer Driver
·         Opera utilizes Opera Driver
·         Safari utilizes Safari Driver and

HTM Unit Driver utilized to simulate browsers utilizing headless browser HtmlUnit

It's the Most Recent instrument in the Package of tools. Using Selenium Client API it is possible to write test scripts in various programming languages rather than writing test scripts in Selenese. These scripts may communicate with Selenium with predefined controls and works of Client API.

Since we're now Knowledgeable about Selenium testing and its own suite of tools, let us find out the various Advantages of Selenium that allow it to stand out of the audience for a tool for testing:

Open Source Tool: As it's an open-source application, it does not require any licensing prices which give it a hand over other automation testing applications.

Tool for Each need: As stated previously, Selenium includes a package of resources, so that it satisfies every demand of their users. You are able to use a variety of tools such as WebDriver, Grid, IDE for fulfilling your distinct requirements.

Supports all significant languages: The significant challenge a programmer or programmer faces using an automation testing instrument is that the help of languages. Since selenium supports all significant languages such as Java, JavaScript, Python, Ruby, C sharp, Perl, .Net and PHP, it's simpler for individuals to use.

Community Service: Selenium has an energetic open community that makes it possible to solve your problems and questions associated with it. This makes it the ideal option as the automation testing instrument.

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