50+ Best Web Api Testing Interview Questions For 2022

Automation testing supports both functional and performance test on an application. Apart from the above mentioned interview questions, it is also important to have a fair understanding of frequently asked DevOps interview questions. There is a difference between type keys and type commands in computer programming. Type keys are specific characters that you type on the keyboard, while type commands are instructions given to the computer. With that we have come to the end of the article Seleinium interview questions. The default constructor in the C# language has no sorted parameters.

C# automation engineer interview questions

If security is not a major concern and we have limited resources. Or we want to create an API that will be easily used by other developers publicly then we should go with REST. If the security is a major concern and the resources are not limited then we should use SOAP web services. Like if we are creating a web service for payment gateways, financial and telecommunication related work, then we should go with SOAP as here high security is needed. SOAP is usually limited to pooling and not to event notifications when HTTP is used for the transport.

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Alternatively, you can also use the keyboard shortcut for refresh, which is typically F5. Finally, you can also right-click on the page and select “Refresh” from the context menu. All of these methods will cause the page to reload and any changes that have been made will be lost.

The navigate().refresh() command allows the user to refresh the current web page by reloading all the web elements. Here, “WebDriver” is an interface, and we are creating a reference variable “driver” of type WebDriver, instantiated using “FireFoxDriver” class. Selenium Grid facilitates you to distribute your tests on multiple QA Automation Engineer C# job machines and all of them at the same time. So, you can execute tests on Internet Explorer on Windows and Safari on Mac machine using the same text script. It reduces the time of test execution and provides quick feedback. “type” command is used to type keyboard key values into the text box of software web application.

  • Pause command in Ajax calls is not conventional and reliable in handling.
  • It is key that a test engineer knows from a high level the basic definition of automated testing, as well as its advantages over manual testing.
  • Assertions can be used to check for the presence or absence of an element, the value of an element, or the text of an element.
  • We do create a property file (.properties) to store all the element locators and these property files act as an object repository in Selenium WebDriver.
  • Employers ask this question to learn more about your qualifications and how you feel you can contribute to their company.
  • Back in 2017 when it no longer worked with Firefox’s latest version, users switched to Katalon Recorder.

It allows testers to export recorded scripts in many languages like HTML, Java, Ruby, RSpec, Python, C#, JUnit and TestNG. Lists of some commonly used Automation Testing tools for Non-Functional Automation are as follows. 4) Name some of the commonly used Automation Testing tools https://wizardsdev.com/ that are used for Non-Functional Automation. 3) Name some of the commonly used Automation Testing tools that are used for Functional Automation. Hope you liked the article Selenium Interview Questions, in case of any doubts you can ask your questions in the below section.

When we compile, the compiler uses overload resolution to determine the specific method to be invoke. A constructor is a member function in a class that has the same name as its class. The constructor is automatically invoked whenever an object class is created. It constructs the values of data members while initializing the class. No, Multiple catch blocks of similar type can’t be executed. Once the proper catch code executed, the control is transferred to the finally block, and then the code that follows the finally block gets executed.

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Implement is up to you as the method is inside your own class. There might be a problem when the methods from different interfaces expect different data, but as far as compiler cares you’re okay. In an interface, we have virtual methods that do not have method definition. All the methods are there to be overridden in the derived class. Interfaces have all the methods having only declaration but no definition.

Attributes are added to elements and can contain valuable information about that element. In order to access an attribute, you must use the at sign (@) followed by the attribute name. Assertions are an important part of testing with Selenium, as they enable you to verify that the state of your application meets your expectations. Without assertions, it would be difficult to know whether or not your tests are actually passing or failing.

Can You Write A Small Code Snippet To Launch A Chrome Browser In Web Driver?

Functional tests are also done at the testing level to simulate the functional scenarios to test the application with provided input and for expected output. Driver.close() is used when we want to close the particular windows or current window in which we perform the execution of test cases. We can perform various operations or actions to a control like enter the value or clicking the button or double click etc. Selenium 3.0 removed Selenium Core but supports Selenium RC indirectly through back-end Webdriver. It supports Java greater than 8 version to run Java code .

C# automation engineer interview questions

I have a interview scheduled on selenium ruby, java need help preparing for the interview. If you have any more questions, feel free to ask via comments. If you find this post useful, do share it with your friends on Social Networking. In case priority is not set then the test scripts execute in alphabetical order. JDBC is a SQL level API that allows us to execute SQL statements.

It is also one of the widely used commands for verification of messages, labels, and errors,etc.,from web pages. Selenium can be used to automate functional tests and can be integrated with automation test tools such as Maven, Jenkins, &Docker to achieve continuous testing. It can also be integrated with tools such as TestNG, &JUnit for managing test cases and generating reports. We can launch different browsers in Selenium WebDriver using several methods. For example, we can use the setWebDriver() method to specify the path to the browser’s executable file. Alternatively, we can use the addCustomProfilePreference() method to add a custom profile preference for the browser.

Write A Code Snippet To Perform Mouse Hover In Webdriver

In this method, the browser is tricked using the Selenium’s server to be a real URL . Isolated and Logical modules are made out of the application that is under test. Independent test scripts are written for each module. The test data of this kind is generated from external files like excel, CSV, XML, etc. The data relating to the test cases rely outside on the input and verification values maintained using the variables. This command closes all the browser windows which are open.

How Would You Describe The Process Of Automation Testing?

There is no possibility that you can access the value of the nullable value type directly with assigning the value. For getting its original assigned value you have to use the method GetValueOrDefault(). If the value is null then it will provide zero as it is its default value. Unboxing- it is the reverse process of the boxing process. This conversion of the unboxing process has to be done explicitly. In case, the if condition turns out to be true then the if instructions will get executed.

The fastest implementation of WebDriver is the HTMLUnitDriver. It is because the HTMLUnitDriver does not execute tests in the browser. Starting a browser and running test cases took more time compared to running the scripts without a browser. HTMLUnitDriver took a simple HTTP request-response mechanism for test case execution. Selenium Grid is a tool used together with Selenium RC to run tests on different machines against different browsers in parallel.

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A RESTful web service usually defines a URI, Uniform Resource Identifier a service, provides resource representation like JSON and a set of HTTP methods. An API is a software intermediary that enables two applications to communicate with each other. It comprises a number of subroutine definitions, logs, and tools for creating application software. I was surprised to see java and API-related questions like the above for a tester with a selenium skill set. Selenium takes more time to create test cases as it has a programming interface only.

Using automation test, we can perform parallel execution, which we can’t do with manual process. Manual process requires more man-power and more efforts to execute the test case. Rather, we can do it using various Automation tools, like Selenium, CodedUI ,QTP, which require less time. This is one of the fundamental Web services testing questions that you must know the answer. Selenium is an open source automation tool which is used to execute the test cases on web applications. Selenium supports various programming languages which include C#.Net , Java , Perl , PHP, Javascript etc.

Finally, we can use the launchBrowser() method to launch the browser. The main disadvantage of implicit wait is that it can slow down your tests. This is because, by default, the implicit wait time is set to zero. As such, if an element is not found immediately, your test will keep trying to find it for the duration of the implicit wait time.

This question is a great way to show your problem-solving skills and how you can apply them to the company’s goals. When answering this question, it can be helpful to describe a situation where you helped improve customer support processes at another organization. QA engineers often work with other professionals to solve problems. This question helps the interviewer understand how you collaborate with others and your experience working in a team environment. Use examples from previous roles to highlight your teamwork skills, communication abilities and problem-solving capabilities. This question is designed to assess your integrity and commitment to the company.

It returns the object of the first matching element of the specified locator. SwitchTo() command is used to switch between windows, frames or pop-ups within the application. Every window instantiated by the WebDriver is given a unique alphanumeric value called “Window Handle”. The objects of Select type can be initialized by passing the dropdown webElement as a parameter to its constructor.