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Automation Testing Articles
Page 62 of 62
When Should I use Selenium Grid?
IntroductionAmong the four flavors of Selenium, Selenium Grid is one such flavor. The facility to run multiple tests on multiple machines, on multiple browsers simultaneously is made possible by Selenium Grid. It also allows running test cases on multiple browsers in parallel.Selenium Grid has 2 versions- older Grid 1 and older Grid 2. Old Grid 1 is obsolete now, hence Grid 2 is used.Selenium 2 is bundled with Selenium Server jar file. There is no need to install Apache Ant unlike Grid 1.How it worksSelenium Grid consists of hub and multiple nodes. Test runs on single machine called Hub and ...
Read MoreWhich version of Firefox is compatible with selenium
Compatibility of Firefox with Selenium has always been a pain area. Before Selenium3, Firefox used to be the default browser for Selenium. But after Selenium3, by using GeckoDriver explicitly, we can initialize the script in FireFox.FireFox was fully supported only in previous versions i.e. v47 and earlier. Selenium WebDriver version 2.53 is not compatible with Mozilla FireFox version 47.0+. After v47.0, FireFox is provided with GeckoDriver. GeckoDriver is a proxy for using W3C WebDriver-compatible clients to interact with gecko-based browsers i.e. Mozilla FireFox.GeckoDriver acts a link between Selenium WebDriver tests and Mozilla FireFox Browser. It is a web browser engine ...
Read MoreWho created Selenium?
Selenium started originally as an internal tool at Thought Works in Chicago which was being developed by Jason Huggins in 2004. He was helped by Paul Gross and Jie Tina Wang and they built a Core mode as "JavaScriptTestRunner" for the testing of an internal Time and Expenses application (Python, Plone).They then thought of open-sourcing the test tool. ThoughtWorkers in various offices around the world picked up Selenium for commercial projects.Selenium RC was the first version of Selenium. In 2007, Huggins joined Google. Together with others like Jennifer Bevan, he continued with the development and stabilization of Selenium RC.In 2008, ...
Read MoreWhat is difference between selenium 2 and selenium 3?
Selenium 2Selenium2 is nothing but integration of WebDriver with Selenium RC(Selenium1). Selenium 1 is a well-established framework that supports various many browsers due to its JavaScript implementation. To step out of JavaScript Sandbox, WebDriver is developed for each browser which provides a headless browser emulator which is very speedy. The strengths of both WebDriver and Selenium 1 are imbibed in Selenium2 which also helps in getting rid of their respective drawbacks.Selenium 3For users of WebDriver API’s, this is a drop-in replacement. The major change being, removing the core and replacing it with the back-end WebDriver. Selenium 3.0 has become a ...
Read MoreDoes Selenium RC has separate drivers for each browser?
Before we answer the above question, let's understand the architecture on which the selenium RC works upon. RC uses a JavaScript Program called the Selenium core which controls the browser. It works by intimating the user action as commanded by the JavaScript commands but that does not enforce user to write automated test cases in the only JavaScript, let’s see how does RC make that happen.The above diagram depicts the brief architecture of the Selenium RC. (Image Courtesy: www.seleniumhq.org )Now as it is evident that the application under test was being executed on a different system, we can say that selenium ...
Read MoreWhat is the difference between selenium WebDriver and TestNG?
WebDriver is a web automation framework which allows us to execute test across various browsers. It also allows us to create the test scripts in any programming language we want. WebDriver makes direct calls to the browser using each browser’s native support for automation.TestNG stands for Test Next Generation. It is an automation testing framework and uses annotations. Annotations are lines of code that control how the method below it will execute. The greatest advantage of TestNG is that we can generate test reports and know the number of scripts passed, failed or skipped. Failed test cases can be run ...
Read MoreWhat is JSON wire protocol in selenium?
To understand we need to first have a fair idea of what JSON actually is, JSON stands for Java Script Object Notation. Now let's have a look at what a sample JSON input looks like −{ "name": "Tutorials Point", "topic": "Selenium", "Address": "India" }JSON today is one of the most widely used and accepted method for communication of heterogeneous system. JSON is used a lot in web services in REST and has been a strong competition to XML.Let’s understand how Web driver uses it when testing the web applications −WebDriver uses JSON as a medium to communicate ...
Read MoreIs TestNG part of selenium?
Before we answer if TestNG is a part of selenium or not, let’s have a brief understanding of what actually TestNG.TestNG stands for Test Next Generation. It is an automation testing framework and uses annotations. Annotations are lines of code that control how the method below it will execute. The greatest advantage of TestNG is that we can generate test reports and know the number of scripts passed, failed or skipped. Failed test cases can be run separately using TestNG. Along with it TestNG provides enables us with the ability to execute the test cases by reading the input file ...
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