While Selenium is one of the easiest programs to learn for testing web applications , total comprehension is necessary to ace an interview in the IT sector. To test your knowledge of Selenium, employers will ask a variety of questions. Selenium interview questions you might encounter include knowledge of the Selenium suite and its practical applications when testing web applications. In some instances, employers have been known to pull their interview questions from a pool of questions to see what you know and understand about Selenium, its components and its functionality.
These questions are designed to test your proficiency at Selenium, coding and testing. Here are some of the most popular Selenium interview questions you might be asked in a job interview. What are the benefits of Selenium as an automation testing tool? What are the types of drivers available in WebDriver?
What is the difference between waits in WebDriver? How would you select a value in a dropdown in WebDriver? What are the two things that cannot be automated by Selenium? What are the types of navigation commands in Selenium? How would you find broken links or assert the title of a webpage in Selenium WebDriver? What four conditions must be met for Selenium to pass a test? Which browsers and drivers are supported by Selenium Webdriver? How does a data-driven framework differ from a keyword-driven framework?
How can you check if an element is getting displayed on a web page? Selenium is an automation testing software. Therefore, you should provide a concise answer to what automation testing does. Example: Automation testing is a method of testing coded software using an automated program. This allows a programmer to test the site more quickly and free of the errors that manual testing may pose.
This question aims to test your knowledge of the two types of automation testing and the differences between them. Example: In programming, there are two types of automation testing: functional testing and regression testing. Functional testing is used to determine if all the functionalities of an application or software are working properly.
In functional testing, the user experience and design are left untouched. Typical reasons for functional testing include testing the input data, meeting customer requirements, collecting expected results and comparing actual and expected results. Regression testing is used to check the functionality of an application after its release.
This type of testing is usually performed after small changes or updates to a web application. Reasons for this testing include ensuring new features run smoothly, finding bugs after an update and checking for any changes in performance or quality after an update. Automation testing has several benefits over manual testing that Selenium users should note. Example: Automation testing has six notable benefits over manual testing. This includes more reliability and accuracy than manual testing, saving time and money, enabling parallel execution, improving tests in a large matrix, ensuring enhanced software quality, and assuring higher efficiency of the developer or development team.
Selenium is a free, open-source automated testing suite. However, Selenium is more than just a single program. Example: Selenium consists of four tools that cater to different testing requirements from a client or internally.
The four components include Selenium WebDriver a framework that allows you to test an application both remotely and locally , Selenium Integrated Development Environment, or IDE, this is the most basic tool in the Selenium suite and allows you to test websites via a record-and-playback test method, Selenium Grid this feature of Selenium allows you to run tests on an application concurrently across different machines, operation systems and browsers , and Selenium Remote Control, or IRC, which is a tool that allows you to write application tests in your programming language of choice on Java-enabled browsers.
Selenium has numerous benefits over other types of automation testing software. These are just some of the main benefits of Selenium as an automation testing tool, but feel free to come up with some creative answers to impress your interviewer.
It's also free. Also, Selenium supports numerous programming languages, including Pearl, PHP, Python, Ruby, Java, C and others and has a huge user base across the web with forums and support to solve issues. Selenese is the programming language used by Selenium. A keyword-driven framework is an extension to the data-driven testing framework in the sense that it not only isolates the test data from the scripts but also keeps the particular section of the code belonging to the test script in an external data file.
These sets of code are known as keywords, and hence the framework is so named. Keywords are self-guiding and work based on what actions need to be performed on the application. Learn more about Selenium from this informative Selenium Tutorial!
Testing a Windows application : Selenium is just a web-based driver. It does not support Windows-based apps and only supports web apps. Testing mobile apps : With the help of Selenium, we can test web apps on any OS and browser that run on desktops.
However, there is an alternative for this, i. It is an open-source automation testing tool that uses the WebDriver protocol to drive native, hybrid, and iOS and Android, which is built specifically for testing mobile apps. Limited reporting : It is one of the key challenges. In Selenium, we cannot generate efficient and accurate reports. Accurate reports help developers fix all bugs and errors. Handling dynamic elements : With the surge in the use of web apps, the management of dynamic elements should be as much efficient as possible.
When a web page loads, the content present on the page changes depending on the user, location, and other factors. In Selenium automation, the handling of dynamic web content is a major challenge. However, Selenium provides an explicit wait feature, where we can set a time interval for the automation testing process to hold the process for the new content to load. Also, another alternative is to utilize the implicit wait feature. Handling page load : Some of the web pages in a web app are user-specific.
They load elements depending on the user. During background processes, the Selenium script might not be able to identify a specific element. To overcome this, we can use explicit waits to provide sufficient time to load and discover the element. Handling pop-up windows : Whenever any simple, prompt, or confirmation alert pops up, it is difficult to automate it. However, Selenium WebDriver can utilize multiple windows, and the web-based alerts can easily be handled with the help of the switchTo method.
It manages the OS-based pop-ups while keeping the browser running in the background. Checkout our intuitive blog on the Future Scope of Selenium. That is all in the section of intermediate Selenium framework interview questions. Want to learn about Selenium with Python!
Check out our blog on Selenium Python Tutorial for beginners. Go through the Selenium Course in London to get a clear understanding of Selenium! It only supports Windows operating system Distribution It is distributed as an open-source tool and is freely available It is distributed as a licensed tool and is commercialized Application under test AUT It supports the testing of web-based applications only It supports the testing of both web-based and Windows-based applications Object repository Object repository needs to be created as a separate entity in Selenium QTP automatically creates and maintains the object repository Language support It supports multiple programming languages like Java, C , Ruby, Python, Perl, etc.
Breakpoints : Breakpoints are used to stall the execution of the test. The execution will stop whenever a breakpoint is implemented, and this will help us check whether the code is working properly or not. Start points : Start points are the points from where the execution should begin.
Start points can be used when we want to run the test script from the middle of the code or after a breakpoint. While working with Selenium, we need session handling. This is because, during test execution, Selenium WebDriver has to interact with the browser all the time to execute the given commands.
It is also possible that, before the current execution completes, someone else starts the execution of another script in the same machine and in the same type of browser. So, to avoid such a situation, we need session handling. Selenium solely supports web application testing.
It does not support the testing of Windows-based applications or mobile applications. To handle Windows-based popups, third-party intervention is required. AutoIt and Robot Class are examples of third-party tools that we can use alongside Selenium to handle Windows-based popups. Interested in learning Selenium? Check out our Selenium Training in Sydney!
It allows us to execute SQL statements. We can use isElementPresent string locator to find an object in Selenium. Test data is read from the external files Excel Files and are loaded into the variables inside the Test Script. Variables are used for both for input values and for verification values. Keyworddriven framework: The keyword driven frameworks requires the development of data tables and keywords, independent of the test automation.
In a keyword driven test, the functionality of the application under test is documented in a table as well as step by step instructions for each test. An object repository is an essential entity in any UI automations which allows a tester to store all object that will be used in the scripts in one or more centralized locations rather than scattered all over the test scripts. Selenium Grid sent the tests to the hub. These tests are redirected to Selenium Webdriver, which launch the browser and run the test.
With entire test suite, it allows for running tests in parallel. But not as effectively as a dedicated Performance Testing tool like Loadrunner. To switch between frames webdrivers [ driver. Recovery scenarios depends upon the programming language you use. If you are using Java then you can use exception handling to overcome same. In Selenium IDE to insert a break point.
A regular expression is a special text string used for describing a search pattern. In Selenium IDE regular expression can be used with the keyword- regexp: as a prefix to the value and patterns needs to be included for the expected values. You can even download ready-made Core Extension created by other Selenium enthusiats. We can use the command selectWindow to switch between windows. This command uses the title of Windows to identify which window to switch to.
It does a pixel comparison of the position of the element from the Left and Top of page respectively. You can use the storeAlert command which will fetch the message of the alert pop up and store it in a variable.
Selenium IDE have limitations in terms of browser support and language support. By using Selenium RC limitation can be diminished.
Selenium IDE does not directly support many functions like condition statements, Iteration, logging and reporting of test results, unexpected error handling and so on as IDE supports only HTML language. The main difference between Selenium RC and Webdriver is that, selenium RC injects javascript function into browsers when the page is loaded.
On the other hand, Selenium Webdriver drives the browser using browsers built in support. A collection of libraries and classes is known as Framework and they are helpful when testers has to automate test cases. To handle pop-ups in RC , using selectWindow method, pop-up window will be selected and windowFocus method will let the control from current window to pop-up windows and perform actions according to script.
Yes, it is possible when you are not using JAVA testing framework. Instead of using Java testing framework if you are using java client driver of selenium then TestNG allows you to do this.
If you want full automation against different server and client platforms, You need a way to invoke the tests from a command line process, reports that tells you what happened and flexibility in how you create your test suites.
TestNG gives that flexibility.
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