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Selenium allows developers and testers to automate the testing of web applications across different browsers and platforms. Selenium allows you to create test scripts in different languages like Ruby, Java, PHP, Perl, Python, JavaScript, and C#, among others. One of the most essential tools in QA testing is the introduction of Selenium, a powerful automated tool. Cracking the selenium interview questions is the key to getting hold of your dream job! If you are appearing for jobs as a selenium tester, this blog covers all the basic interview questions and answers one needs to know.
Ans- Selenium is an open-source umbrella project for various tools and libraries to support browser automation. It provides a playback tool for authoring functional tests across most modern web browsers without learning a test scripting language. This interface provides a language-neutral wire protocol that has been implemented for various platforms such as:
Ans- Selenium uses locators to find and match the elements of a web page that it needs to interact with. Different types of Selenium locators are used for various web elements on a web page:
Learn more about selenium IDE commands and locators from available resources.
Ans- Selenium can be used to test web-based applications.
The test types supported by Selenium are:
Ans- The Actions class gives us a way of describing how a user would interact with a web page/elements. Using an instance of this class, you can describe a series of actions, such as clicking, double-clicking, dragging, pressing keys, etc. Once these actions are described, to carry the actions out, you must call must build the actions (.Build()) and then instruct them to be performed (.Perform()). So, we must describe, build, and perform. Gain more in-depth knowledge from verified sources on what action class is and how to use it.
Ans- Selenium is not just a single tool or utility but a package of several testing tools, and that’s why it’s called Selenium Suite. Also, learn about the architecture of selenium and be an expert in this subject. Each of these tools caters to different testing and testing environments. It comprises four major components as follows:
Selenium Integrated Development Environment (IDE):
It is distributed as a Firefox plugin that acts as a recording and playback tool. It is developed to speed up the creation of automation scripts.
Selenium Remote Control (RC):
Selenium Remote Control is a server with which the user can create the Test cases in any desired programming language. The commands in the test scripts are accepted by the server and sent to the browsers as the Selenium core Javascript commands to maintain the browser behavior accordingly.
Selenium Web driver:
Selenium Web Driver is a programming interface to create and test cases. It provides a way to act on various web elements. This Web driver does not require another server, unlike Selenium Remote Control.
Selenium Grid:
The Selenium Grid simultaneously distributes the commands to the different machines. It paves the way for the parallel execution of the test cases in different browsers and environments. It achieves concurrency and integrity in the Test Suite Execution.
Ans- Selenium 2.0 represents the merger of the Original Selenium project with the Web Driver project. The Selenium RC was deprecated but was used for backward compatibility.
Selenium 3.0, often called an extension of Selenium 2.0, is inherently backward compatible with increased stability and several bug fixes and does not involve the Selenium RC at all.
Ans- Selenese, called the Selenium command, is the command set that runs your test cases. For example, open (URL) is a Selenium command that opens the specified URL in the specific browser. There are also different selenium web driver commands that one can explore. A test script is the sequence of all these commands put together. There are three types of Selenese. They are,
Ans- Selenium can be used for these types of tests:
Ans- When discussing technical challenges associated with Selenium, you should work on some examples from your past work. You can also highlight how you dealt with these challenges, which gives the hiring team a glimpse into your critical thinking process. Here are a few ideas to get you started:
Ans- Let's look at how WebDriver works in more detail:
1. Initializing the driver: To start using WebDriver, you must first initialize the driver for the specific browser you need to automate.
You can download the browser-specific driver executable file from the official vendor website and add it to the project's classpath. Once the driver has been added, we can use the specified browser driver to create an instance of the WebDriver in our test script, as seen below.
2. Interacting with the webpage: After initializing the driver, you can now interact with the webpage using WebDriver methods. WebDriver includes numerous handy methods, such as findElement(), click(), sendKeys(), and navigate(), that allow us to discover and interact with elements on the page, imitate user actions, and navigate across pages.
For example, assume that we wish to enter some text into a text field on a website. To imitate typing, we can utilize the sendKeys() method:
In this example, we first use the By.name() method to locate the search field element on the page, and then we use the sendKeys() method to simulate typing the text "Selenium WebDriver" into the search field.
3. Executing the test: Once you have written your script using WebDriver, you can execute the test using your chosen framework, such as JUnit or TestNG. This testing framework will run the test script and generate a test report with the test results.
4. Handling exceptions: WebDriver can throw various exceptions during test execution, such as TimeoutException, NoSuchElementException, or StaleElementReferenceException. It's crucial to handle these exceptions correctly in your test script to avoid failures and ensure that your tests are reliable and accurate. Check out selenium tutorials to get an in-depth knowledge of the topic.
Ans- Selenium works with a wide range of programming languages. These are the popular language which is given below :
The choice of programming language for Selenium test development depends on personal preference, project requirements, and existing team expertise. It has a range of supported languages, which makes it accessible to developers with different language backgrounds and preferences. Check out the most popular programming languages currently in the market, their specialization, and how you can further benefit your career through learning these programming languages.
Ans- XPath in Selenium is essential to Selenium automation as it provides a powerful mechanism for locating elements on a web page. XPath is a language used for selecting nodes from an XML or HTML document, and it allows Selenium to identify the exact location of an element on a webpage. XPath expressions can locate any element on the webpage, including buttons, links, input fields, etc.
Here are some of the reasons why XPath is important in Selenium automation:
It is a crucial component of Selenium automation since it offers an accurate and adaptable approach to locating webpage items. Selenium can use XPath to locate any element on the page, even in intricate user interfaces, and to adapt to modifications made to the application being tested. Learn more about what Xpath is in selenium and how to write Xpath selenium.
Ans- There are four parameters that you must pass in Selenium. They are as follows,
Ans- This is a question that would best be answered by referencing specific examples, a few exceptions that could be addressed include:
Ans- A test suite is a collection of test cases collected together and executed as a single unit in Selenium. The goal of developing a test suite is to group various connected test cases and cover diverse scenarios of the application being tested, making them easier to manage and organize. The widely used test frameworks TestNG, JUnit, and NUnit can be used to build a test suite with Selenium. These frameworks include functionality for managing test suites, such as grouping test cases, parallelizing execution, creating dependencies between test cases, and generating test results.
The use of Selenium test suites provides several advantages, including increasing the effectiveness of the testing procedure by enabling multiple tests to be done simultaneously and reducing the time and effort needed to run individual tests independently.
QA Software Testing Training
Our industry experts have curated all the selenium interview questions and answers with certain pieces of code explaining how to answer the questions for an impactful performance. Intrigued on journey as a test automation engineer and add another shining star to your selenium interview, here’s a certification course that will be useful. Check out Janbask Traning’s Selenium training course. This training will improve testing skills with a new-age Selenium training and certification course. Join this Selenium training and get great exposure to the best industry-wide practices and methodologies.
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