The name Selenium comes from a joke made by Huggins in an email, mocking a competitor named Mercury, saying that you can cure mercury poisoning by taking selenium supplements. The others that received the email took the name and ran with it.
Where did the name selenium come from?
Feb 18, 2020 · Why it is named as selenium? Origin of the name: The name is derived from '. Click to see full answer. Likewise, people ask, what is selenium and why it is used? Selenium is basically used to automate the testing across various web browsers. It supports various browsers like Chrome, Mozilla, Firefox, Safari, and IE, and you can very easily ...
What is Selenium-IDE?
Nov 10, 2021 · Why is selenium named so? It was Berzelius who discovered selenium in 1817, as an impurity in sulphuric acid. Tellurium had already been discovered, and named after the Greek word for earth, so he named selenium using the Greek word for moon, selene. What is called selenium? Selenium is an open-source tool that automates web browsers.
Why is this framework called selenium?
Apr 21, 2013 · On these days,in the world of QA every one would heard about the buzz word called “Selenium”. The name comes from a fantastic incident. During the development of selenium core there was another competitive product was developed by a company called Mercury Interactive( Later it has acquired by HP and then that product renamed as QTP).
Why is selenium called as a competitive product?
Feb 01, 2016 · Since Selenium is a well-known antidote for Mercury poisoning, Jason suggested that name. His teammates took it, and so that is how we got to call this framework up to the present Must Read :
What does Selenium stand for?
Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic.
What was the first name of Selenium?
He originally named the program JavaScriptTestRunner but after realizing the potential of the program, he made it an open source program which he re-named as Selenium Core. However there were problems.Jan 7, 2021
Who is the founder of Selenium?
Simon Stewart - Simon Stewart, a.k.a the creator of Selenium Webdriver, is well known by the Selenium community, and for good reason.
Why is Selenium used?
It's used to ensure high-quality web applications — whether they are responsive, progressive, or regular. Selenium is an open-source tool. And, Selenium releases regularly. Testers use Selenium because it's easy to generate test scripts to validate functionality.Apr 30, 2020
What is the purpose of TestNG?
TestNG makes automated tests more structured, readable, maintainable and user-friendly. It provides powerful features and reporting. Its high-end annotations like dataprovider, makes it easier to scale up, as you perform cross browser testing across multiple devices, browsers, and their versions.Jul 25, 2019
What is Selenium in Python?
Selenium is an open-source web-based automation tool. Python language is used with Selenium for testing. It has far less verbose and easy to use than any other programming language. The Python APIs empower you to connect with the browser through Selenium.Feb 19, 2022
What is Appium tool?
Appium is an open-source framework that allows QAs to conduct automated app testing on different platforms like Android, iOS, and Windows. It automates testing for: Native Mobile Applications that are written using iOS, Android, or Windows SDKs.May 2, 2021
What is Selenium written?
PythonJavaJavaScriptC#RubySelenium/Programming languages
What is ThoughtWorks Selenium?
Selenium as a technology is now 10 years old. Thoughtworks is proud to have created and open-sourced what is now the defacto-standard for cross platform cross browser web-app functional testing. We're also proud to have released it as open source for the greater good.Oct 22, 2014
What is POM model?
Page Object Model, also known as POM, is a design pattern in Selenium that creates an object repository for storing all web elements. It is useful in reducing code duplication and improves test case maintenance. In Page Object Model, consider each web page of an application as a class file.May 16, 2021
What is TestNG framework?
TestNG is a powerful testing framework, an enhanced version of JUnit which was in use for a long time before TestNG came into existence. NG stands for 'Next Generation'. TestNG framework provides the following features − Annotations help us organize the tests easily. Flexible test configuration.
What is API testing?
Definition: API (Application Programming Interface) testing is a type of software testing that aims to determine whether the APIs that are developed meet expectations when it comes to functionality, performance, reliability and security for an application.
Where did the name Selenium come from?
The Name Selenium came from a joke which Jason cracked once to his team. During Selenium's development, another automated testing framework was popular made by the company called Mercury Interactive (yes, the company who originally made QTP before it was acquired by HP). Since Selenium is a well-known antidote for Mercury poisoning, ...
When was Selenium created?
Below are the key persons who made notable contributions to the Selenium Project. Primarily, Selenium was created by Jason Huggins in 2004.
What is Selenium testing?
Selenium is a free (open-source) automated testing framework used to validate web applications across different browsers and platforms. You can use multiple programming languages like Java, C#, Python etc to create Selenium Test Scripts. Testing done using the Selenium testing tool is usually referred to as Selenium Testing.
What is Selenium RC?
Selenium RC was the flagship testing framework of the whole Selenium project for a long time. This is the first automated web testing tool that allowed users to use a programming language they prefer. As of version 2.25.0, RC can support the following programming languages: Java.
Why does Selenium Core need to be installed on local computer?
Unfortunately; testers using Selenium Core had to install the whole application under test and the web server on their own local computers because of the restrictions imposed by the same origin policy. So another ThoughtWork's engineer, Paul Hammant, decided to create a server that will act as an HTTP proxy to "trick" the browser into believing that Selenium Core and the web application being tested come from the same domain. This system became known as the Selenium Remote Control or Selenium 1.
When was WebDriver created?
Birth of WebDriver. Simon Stewart created WebDriver circa 2006 when browsers and web applications were becoming more powerful and more restrictive with JavaScript programs like Selenium Core. It was the first cross-platform testing framework that could control the browser from the OS level.
What is the same origin policy?
Same Origin policy prohibits JavaScript code from accessing elements from a domain that is different from where it was launched. Example, the HTML code in www.google.com uses a JavaScript program "randomScript.js". The same origin policy will only allow randomScript.js to access pages within google.com such as google.com/mail, google.com/login, or google.com/signup. However, it cannot access pages from different sites such as yahoo.com/search or guru99.com because they belong to different domains.
What is Selenium Remote Control?
Under this policy, a JavaScript code cannot access the elements of other domains that are different from its parent domain. For example, if a JavaScript program uses a code written for our site www.mindmajix.com, then SOP allows it to access the pages site such as mindmajix.com/all-courses or mindmajix.com/blog, prohibiting access to other domains like google.com.
What is Selenium testing?
As said at the beginning of this blog, Selenium is an automation testing tool for web applications. It is a free source automation testing tool that is used to automate the tests on web browsers. You may be wondering why only web applications and why not mobile and desktop software applications.
Why is Selenium used in automation?
Selenium is one of the widely used automation testing tools because of its various advantages. Testers prefer Selenium over any other tool due to its ease of use, availability, and simplicity. Testers' lives have been made easier with the introduction of Selenium for automated testing. It has attracted many eyeballs and become a favorite tool ...
Why was Selenium Grid created?
It was created by Patrick Lightbody to deal with the minimization of execution times of test cases. Selenium Grid was initially named as Hosted QA and was a part of Selenium 1. Selenium Grid uses Hub-Node design to support parallel execution of multiple test cases on multiple machines that are remotely located.
What are the advantages of Selenium?
Advantages of Selenium. The following list showcases the advantages of the Selenium testing tool that makes it best among other automation testing tools. Selenium is an open-source automation testing tool and it is free of cost to use. Selenium provides high tester flexibility to write advanced and complex test cases.
Why is automation testing important?
Automation testing has become very famous due to its various advantages. It increases the effectiveness and efficiency of the software.
Which is faster, RC or WebDriver?
WebDriver is much faster than RC because it directly calls the browser whereas RC needs a server to interact with the browser and depends on JavaScript for automated web application testing. Each web browser has its own WebDriver such as, Chrome Driver. Gecko Driver (Firefox) HTM Unit Driver. IE Driver.
Why is Selenium called Selenium?
Selenium was so named because Huggins, dissatisfied with testing tools on the market, was seeking a name that would position the product as an alternative to Mercury Interactive QuickTest Professional commercial testing software .
When was Selenium developed?
Selenium was originally developed by Jason Huggins in 2004 as an internal tool at ThoughtWorks. Huggins was later joined by other programmers and testers at ThoughtWorks, before Paul Hammant joined the team and steered the development of the second mode of operation that would later become "Selenium Remote Control" (RC). The tool was open sourced that year.
What is a watir webdriver?
Watir-webdriver implements the Watir API as a wrapper for Selenium WebDriver in Ruby. Watir-webdriver is created entirely automatically, based on the WebDriver specification and the HTML specification.
What is selenese in Firefox?
Selenese provides commands for performing actions in a browser (click a link, select an option) and for retrieving data from the resulting pages. The 2.x version of the Selenium IDE for Firefox stopped working after the Firefox 55 upgrade and has been replaced by Selenium IDE 3.x.
What is the name of the cloud that Pat Lightbody made?
Pat Lightbody had already made a private cloud for "HostedQA" which he went on to sell to Gomez, Inc. The name Selenium comes from a joke made by Huggins in an email, mocking a competitor named Mercury, saying that you can cure mercury poisoning by taking selenium supplements.
What is Selenium RC?
Selenium Remote Control (RC) is a server, written in Java, that accepts commands for the browser via HTTP. RC makes it possible to write automated tests for a web application in any programming language, which allows for better integration of Selenium in existing unit test frameworks. To make writing tests easier, Selenium project currently provides client drivers for PHP, Python, Ruby, .NET, Perl and Java. The Java driver can also be used with JavaScript (via the Rhino engine). An instance of selenium RC server is needed to launch html test case - which means that the port should be different for each parallel run. However, for Java/PHP test case only one Selenium RC instance needs to be running continuously.
What languages does Selenium run?
It also provides a test domain-specific language (Selenese) to write tests in a number of popular programming languages, including C#, Groovy, Java, Perl, PHP, Python, Ruby and Scala. The tests can then run against most modern web browsers. Selenium runs on Windows, Linux, and macOS.
Overview
Selenium is a chemical element with the symbol Se and atomic number 34. It is a nonmetal (more rarely considered a metalloid) with properties that are intermediate between the elements above and below in the periodic table, sulfur and tellurium, and also has similarities to arsenic. It seldom occurs in its elemental state or as pure ore compounds in the Earth's crust. Selenium—from
Characteristics
Selenium forms several allotropes that interconvert with temperature changes, depending somewhat on the rate of temperature change. When prepared in chemical reactions, selenium is usually an amorphous, brick-red powder. When rapidly melted, it forms the black, vitreous form, usually sold commercially as beads. The structure of black selenium is irregular and complex and consists …
Chemical compounds
Selenium compounds commonly exist in the oxidation states −2, +2, +4, and +6.
Selenium forms two oxides: selenium dioxide (SeO2) and selenium trioxide (SeO3). Selenium dioxide is formed by the reaction of elemental selenium with oxygen:
Se8 + 8 O2 → 8 SeO2
History
Selenium (Greek σελήνη selene meaning "Moon") was discovered in 1817 by Jöns Jacob Berzelius and Johan Gottlieb Gahn. Both chemists owned a chemistry plant near Gripsholm, Sweden, producing sulfuric acid by the lead chamber process. The pyrite from the Falun Minecreated a red precipitate in the lead chambers which was presumed to be an arsenic compound, so the pyrite's use to make acid was discontinued. Berzelius and Gahn wanted to use the pyrite and they also o…
Occurrence
Native (i.e., elemental) selenium is a rare mineral, which does not usually form good crystals, but, when it does, they are steep rhombohedra or tiny acicular (hair-like) crystals. Isolation of selenium is often complicated by the presence of other compounds and elements.
Selenium occurs naturally in a number of inorganic forms, including selenide, s…
Production
Selenium is most commonly produced from selenide in many sulfide ores, such as those of copper, nickel, or lead. Electrolytic metal refining is particularly productive of selenium as a byproduct, obtained from the anode mud of copper refineries. Another source was the mud from the lead chambers of sulfuric acidplants, a process that is no longer used. Selenium can be refined from these muds by a number of methods. However, most elemental selenium comes as a byproduc…
Applications
Researchers found that application of selenium fertilizer to lettuce crops decreased the accumulation of lead and cadmium. Peaches and pears given a foliar selenium spray contained higher levels of selenium and also stayed firm and ripe longer when in storage. In low doses, selenium has shown a beneficial effect on plant resistance to various environmental stress factors including drought, UV-B, soil salinity, and cold or hot temperatures. However, it can dama…
Pollution
In high concentrations, selenium acts as an environmental contaminant. Sources of pollution include waste materials from certain mining, agricultural, petrochemical, and industrial manufacturing operations. In Belews Lake North Carolina, 19 species of fish were eliminated from the lake due to 150-200 μg Se/L wastewater discharged from 1974 to 1986 from a Duke Energy coal-fired power plant. At the Kesterson National Wildlife Refugein California, thousands of fish a…