Top 50 C# Interview Questions and Answers 2023

Setting up the API’s test environment is not an easy task, so you should have a ready answer if your API testing interview is coming. The test environment of API is a bit complete and requires the configuration of the database and server, depending on the software requirements. XPath is a language for addressing parts of an XML document.

• In this manner, we can provide input much more quickly and test even before the UI is designed.
• A test that never fails is worse than having no tests since it provides a false sense of security that the feature is functioning correctly.
• For often changing features and infrequently executed test cases, a human tester gives a higher return on investment than automation.
• C# is the primary programming language which helps in every higher level programming language.
• Frameworks are guidelines and not mandatory to create and execute automation scripts.

As a result, they save the tester time and assure the software’s quality before release. When developing online apps, you never know which browsers your consumers will use. As a result, it is critical to test the web application or website across various main browsers and operating systems. Regression testing is a crucial kind of testing that may be included within the QA automation testing interview questions. An automated testing framework should be self-contained and simple to use, update, and expand. The test framework is a commonly asked subject in automation testing interview questions.

What is file handling in C#?

Rather than that, we may test even before the UI is designed. We may test the APIs or methods directly using tools such as UILicious and FitNesse. Sikuli is a technology https://wizardsdev.com/ that automates graphical user interfaces via the “Visual Image Match” approach. All web components in Sikuli should be captured as images and included in the project.

Method Overloading is the common way of implementing polymorphism. It is the ability to redefine a function in more than one form. A user can implement function overloading by defining two or more functions in a class sharing the same name. C# can distinguish the methods with different method signatures. It recognizes and checks the methods, or properties during compile time.

How to select a value from a dropdown in Selenium WebDriver?

Even if it only takes a few minutes to realize that our solution is much simpler and more flexible than the most commonly used frameworks. The stages involved in the automation process are as follows. This method has the advantage of isolating the modification to a single spot, hence avoiding issues and mistakes. A test that never fails is worse than having no tests since it provides a false sense of security that the feature is functioning correctly. Sikuli provides substantial assistance in automating flash objects.

Enum can be displayed as a string and processed as an integer. An enum is used to create numeric constants in the .NET framework. Therefore, there must QA Automation Engineer C# job be a numeric value for each enum type. To learn more about the difference between an abstract class and an interface, visitAbstract Class vs. Interface.

What is a Console application?

However, if the class is inheriting from a base class that contains a virtual member function, you can use the modifier to avoid further overriding that member function. Multithreading, or threading, can be a good way to improve the performance of a program where several operations run simultaneously. A string object is immutable, meaning that it cannot be changed after it’s created.

XSLT and other XML-related technologies use it to access data within XML documents. XPath can be used to navigate through elements and attributes in an XML document. XPath is a major element in the XSLT standard and is crucial for processing XML documents. Private virtual methods are not accessible outside of the class.

What are the types of waits supported by WebDriver?

Web Testing Robust solution for end-to-end web automated testing. Apart from the above mentioned interview questions, it is also important to have a fair understanding of frequently asked DevOps interview questions. There are a couple of ways to refresh a web page in WebDriver. The most common method is to use the “Refresh” button in the browser toolbar.

During ad hoc testing, a QA specialist randomly tests the system’s functionality; his aim is to be creative, “break” the system and discover flaws. Once executed, the next step is to create report formats so that individual test logs with detailed actions performed during testing are recorded. Define the type of test report format to be created, screenshots, messages, etc.

What is C#?

The answer depends on the length and complexity of the test scenario. Generally, a QA tester can automate 2-4 test scenarios daily when the complexity is limited. However, sometimes it might reduce to 1-2 when the complexity is high.