What is meant by selenium?
One free and open-source toolset for automated testing is called Selenium.
Its primary goal is automated testing of web applications on various browsers and systems.
Web applications must be tested in order to function flawlessly. It helps identify problems with websites.Appium, HP’s QPI, IBM’s RFI, and more software are available for testing desktop and mobile applications.
Why Do Selenium Tests Need to Be Done?
The accessibility of the Selenium testing suite is one of its advantages over other web application testing solutions. Selenium is better than other elements for a number of reasons. Among them are:
There are no license costs because this utility is open-source and free.
to write test scripts: Java, Python, C#, PHP, Ruby, Perl, or .Net. You can begin studying any of these programming languages by enrolling in an online Python course.
Opera, Google Chrome, Mozilla Firefox, Safari, and Internet Explorer.
Sections of the Selenium Suite
Four parts make up the Selenium program, which provides various demands for code and application testing. The following are the elements of the selenium suite:
The Selenium Grid, Selenium IDE, Selenium WebDriver, and Selenium RC
1. The IDE for Selenium
Though initially only compatible with Firefox, the IDE testing tool now works with Chrome as well.
The Selenium IDE’s features include:
It is easy to use and install, and it features a straightforward framework. For instance, installing it on Firefox is simple. Just open the browser and navigate to Firefox’s “add-on page” to include the Selenium IDE plug-in.
Because test cases are built through browser interactions,
test scripts don’t require knowledge of programming languages. This facilitates the recording and replay of test cases by the testers for web application automation testing.
2. The scripting language used to create test cases is called Selenese.
Users can export the recorded tests from C#, Java, Ruby, and Python, among other computer languages.
The characteristics of red selenium are:
- For automation testing, it supports more programming languages such
- as Ruby, PHP, Python, Perl, C#, Java, and Javascript.
- Nearly every operating system and web browser is compatible with it.
- Selenium Grid, which facilitates the execution of numerous test cases concurrently,
- is the other component. The following are the parts of selenium RC:
- The intermediary between the code and the browser is the Selenium Server. It is in charge of deciphering and carrying out Selenium commands that the test scripts send.
- It serves as an HTTP proxy server to intercept and validate different kinds of web requests,
- as well as to start and stop browsers.
3. WebDriver for Selenium
Selenium RC is enhanced by this Selenium suite component.
It was created with the goal of overcoming the drawbacks of Selenium RC
and enabling direct communication between browsers
Among Selenium WebDriver’s features are:
- Each browser has a web driver that runs the test scripts based on commands it gets from Selenium.
- It is compatible with a wide range of browsers and supports several programming languages.
- Unlike the Selenium IDE, it does not offer the recording
- and playback of features from test scripts.
- It can handle dynamic web pages, which let any element change without needing to refresh the page.
Language Bindings for Selenium and Client Libraries:
The language bindings also referred to as client libraries,
support the following programming languages: Java, Ruby, Python, C#, and JavaScript. These libraries (jar files) contain the Selenium WebDriver classes and methods needed for automated test scripts.
Rather than being a testing framework, Selenium client libraries
are an application programming interface (API) for running Selenium commands from within the program. online automation testing course
JSON Wire Protocol:
JSON, or JavaScript Object Notation, is a data transfer format that works with several programming languages, including Python, C#, Ruby, and Java. It facilitates data transfer across the web between the client and server.
drivers for browsers:
A driver is needed in order for Selenium and any browser to connect safely. In response to requests for language binding, WebDriver uses the wire protocol to carry out the necessary operations for every browser.
True Headless Browsers That Are Real:
A genuine browser has an interface; a headless browser does not. For instance, HTMLUnit is a headless browser whereas Chrome is an actual browser.
4. Grid of Selenium
Selenium Grid is a tool that is
used in conjunction
with Selenium RC to run tests on
several computers and web browsers at once.
One of Selenium Grid’s advantages is the ability to run tests in parallel across multiple computers and browsers, which cuts down on the time it takes to finish the testing suite.
Center: A hub is the central element that initiates test cases in a Selenium grid. It distributes test requests among the nodes as it receives them. There is just one hub in a Selenium grid.
nodes launch them across various computers, platforms, and web browsers.
To sum up
Automation testing with selenium is a synonymous concept. Develop your knowledge of these elements and improve as a quality tester with the aid of this guide.