700+ Automation Test Engineer Interview Questions and Answers

ElementNotPresent exception occurs even if element is present on page. Why?

• The element may not be loaded yet, so wait for it to load before checking

• The element may be hidden or not visible on the page

• The element may have a different name or ID than expected

• The element may be in an iframe or shadow DOM

• The element may have been removed or deleted from the page

Yes, a static local variable can be created inside a static method.

• Yes, a static local variable can be declared inside a static method in programming languages like C++.

• Static local variables retain their values between function calls.

• Example: static void myStaticMethod() { static int count = 0; count++; }

To insert value in text box using excel sheet through Selenium, we need to read data from excel and use sendKeys() method.

• Read data from excel using Apache POI or JXL library

• Identify the text box element using Selenium

• Use sendKeys() method to insert the value from excel into the text box

Agile methodology is an iterative approach to software development that emphasizes collaboration, flexibility, and customer satisfaction. CI/CD pipeline is a set of practices that automate the process of building, testing, and deploying software.

• Agile methodology involves breaking down a project into smaller, more manageable pieces called sprints.

• Each sprint involves a cross-functional team working together to deliver a working product increment.

• CI/CD pipeline involves contin...read more

The question is about automation testing, specifically focusing on taking screenshots, the differences between Selenium 3 and 4, Selenium components, frameworks and examples, and parallel execution.

• Taking screenshots is a common practice in automation testing to capture the state of the application at a specific point in time.

• Selenium 3 and 4 are different versions of the Selenium automation framework, with version 4 introducing new features and improvements.

• Selenium componen...read more

I have used various javascript commands in Selenium such as executeScript, executeAsyncScript, etc.

• executeScript() method is used to execute JavaScript code in the context of the currently selected frame or window.

• executeAsyncScript() method is used to execute asynchronous JavaScript code in the context of the currently selected frame or window.

• Other commonly used JavaScript commands in Selenium include getElementById(), getElementsByClassName(), etc.

Popular tools for automation testing include Selenium, Appium, JMeter, and TestComplete.

• Selenium: widely used for web application testing

• Appium: used for mobile application testing

• JMeter: used for load testing and performance testing

• TestComplete: used for desktop application testing

• Other popular tools include Katalon Studio, Robot Framework, and Cucumber

To track tasks in Jira, I will create issues, assign them to team members, set priorities, and update their status.

• Create issues in Jira for each task

• Assign the issues to team members

• Set priorities for each issue

• Update the status of each issue as it progresses

• Use Jira's reporting features to track progress and identify bottlenecks

Automation testing refers to the use of software tools to execute pre-scripted tests on a software application.

• Automation testing involves writing scripts to automate repetitive manual testing tasks

• It helps in reducing the time and effort required for testing

• It improves the accuracy and reliability of testing results

• Examples of automation testing tools include Selenium, Appium, and TestComplete

I don't have the available data to answer this question.

• N/A

Interview questions for Automation Test Engineer on encapsulation, abstraction, Selenium dropdown and Appium configuration.

• Encapsulation is the process of hiding implementation details from the user.

• Abstraction is the process of hiding unnecessary details from the user.

• Selenium can locate dropdown using Select class and its methods.

• Appium configuration questions may include setting up desired capabilities, specifying app path, device name, platform name, etc.

To take a screenshot in Selenium, use the getScreenshotAs() method.

• Create an object of the TakesScreenshot interface

• Use the getScreenshotAs() method to capture the screenshot

• Save the screenshot to a desired location using the File class

Abstraction is a way of hiding implementation details. An interface is a contract that specifies the behavior of a class.

• Abstraction is achieved through abstract classes and interfaces

• Abstract classes can have both abstract and non-abstract methods

• Interfaces can only have abstract methods and constants

• A class can implement multiple interfaces but can only inherit from one abstract class

• Abstract classes can have constructors but interfaces cannot

• Example: An abstract class 'Ani...read more

Maven is a build automation tool used primarily for Java projects.

• Maven uses a Project Object Model (POM) to manage dependencies and build process

• It uses a central repository to download dependencies

• Maven has a defined directory structure for projects

• Plugins can be added to extend Maven's functionality

A program to count the number of integers and characters in a given string.

• Iterate through each character in the string and check if it is an integer or a character.

• Use isdigit() function to check if a character is an integer.

• Keep separate counters for integers and characters.

• Return the counts of integers and characters at the end.

Separate alphabets and digits from a given string input.

• Iterate through each character in the input string

• Check if the character is a letter or a digit using built-in functions like isalpha() and isdigit()

• Create separate arrays for alphabets and digits and store the characters accordingly

The public static void main(String arv[]) method is the entry point of a Java program, where execution begins.

• The 'public' keyword allows the method to be accessed from outside the class.

• The 'static' keyword allows the method to be called without creating an instance of the class.

• The 'void' keyword indicates that the method does not return any value.

• The 'main' method is the starting point of execution for a Java program.

• The 'String[] args' parameter allows command-line argume...read more

Some exceptions in Selenium are NoSuchElementException, TimeoutException, StaleElementReferenceException.

• NoSuchElementException occurs when an element is not found in the DOM.

• TimeoutException occurs when a command takes longer than the timeout value to complete.

• StaleElementReferenceException occurs when a referenced element is no longer attached to the DOM.

Java program to find maximum profit from buying and selling books on different days.

• Create an array to store the prices of books on different days

• Iterate through the array to find the maximum profit by buying on one day and selling on another

• Calculate profit by subtracting buying price from selling price

• Return the maximum profit obtained

Challenges in Selenium include browser compatibility, dynamic elements, and test maintenance.

• Browser compatibility issues can arise due to differences in browser versions and configurations.

• Dynamic elements can cause tests to fail if not handled properly.

• Test maintenance can be challenging due to changes in the application under test.

• Synchronization issues can occur when the test script runs faster than the application.

• Handling pop-ups and alerts can be tricky.

• Cross-domain te...read more

We used a hybrid automation framework that combined data-driven and keyword-driven approaches.

• The framework was built using Selenium WebDriver and TestNG.

• We used Excel sheets to store test data and Apache POI library to read/write data from/to Excel.

• The framework had reusable functions and libraries for common actions like login, logout, etc.

• We also used Jenkins for continuous integration and execution of automated tests.

• The framework was designed to be scalable and maintaina...read more

To handle broken links in Selenium, we can use the HTTPURLConnection class to check the response code of the link.

• Get all the links on the page using findElements() method

• Iterate through each link and get the href attribute

• Create a URL object for the href attribute

• Open a connection using HTTPURLConnection class

• Get the response code using getResponseCode() method

• If the response code is not 200, mark the link as broken

Multiple credentials can be logged in using data from an excel sheet.

• Read the excel sheet using a library like Apache POI

• Iterate through the rows and columns to get the data

• Use a loop to login with each set of credentials

• Assert the login success or failure for each set of credentials

String memory allocation is dynamic and depends on the length of the string.

• String memory allocation is dynamic and can change based on the length of the string.

• In Java, a String object is stored in the heap memory.

• Each character in a String typically takes up 2 bytes of memory.

• String objects in Java are immutable, meaning once a String object is created, it cannot be changed.

Print even numbers in array without curly braces.

• Iterate through array and check if each element is even.

• If element is even, add it to a new array of strings.

• Join the elements of new array with commas to form final output.

To take backup of a table and insert values in the same table of another database.

• Use SQL Server Management Studio to take backup of the table

• Restore the backup in the target database

• Use SQL queries to insert values from source table to target table

Abstract class is a class that cannot be instantiated while abstract method is a method without implementation.

• Abstract class can have both abstract and non-abstract methods while abstract method can only exist in an abstract class or interface.

• Abstract class can have constructors while abstract method cannot.

• Abstract class can provide default implementation for its non-abstract methods while abstract method cannot.

• Example of abstract class: Animal class with abstract method ...read more