VVDN Technologies Qa Automation Testing Engineer Interview Questions and Answers

Q1. What is the output of below code public class Test { public static void main(String[] args) { int I = 0; try { throw new NullPointerException(); // Exception is thrown ...read more
Ans. 
The code demonstrates exception handling, resulting in an output of 2 due to incrementing variable I in catch and finally blocks.
• The code throws a NullPointerException which is caught in the catch block.

• In the catch block, I is incremented from 0 to 1.

• The finally block executes regardless of exception, incrementing I from 1 to 2.

• The final output printed is the value of I, which is 2.
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Q2. What is the process to find duplicate names from a string array and print those that start with the letter 'B'?
Ans. 
Identify and print duplicate names from a string array that start with 'B'.
• 1. Create a string array with names, e.g., ['Bob', 'Alice', 'Bill', 'Bob', 'Bobby'].

• 2. Use a HashMap or dictionary to count occurrences of each name.

• 3. Iterate through the array and check for names starting with 'B'.

• 4. Print names that have a count greater than 1, e.g., 'Bob' and 'Bill' if they are duplicates.
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Q3. What are the annotations used in TestNG?
Ans. 
TestNG annotations are used to define test methods, configuration, and grouping in automated testing.
• @Test: Marks a method as a test method. Example: @Test public void testMethod() {}

• @BeforeSuite: Executes before the entire test suite. Example: @BeforeSuite public void setupSuite() {}

• @AfterSuite: Executes after the entire test suite. Example: @AfterSuite public void teardownSuite() {}

• @BeforeTest: Executes before any te...read more
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Q4. What tags have you used in the runner class?
Ans. 
In a runner class, tags help organize and filter test cases for execution in automation testing frameworks.
• Tags are used to categorize tests, e.g., @smoke, @regression.

• They allow selective execution, e.g., running only @smoke tests.

• Tags can be combined, e.g., @regression and @critical.

• In Cucumber, tags are specified in the feature file, e.g., @login.

• In TestNG, tags can be implemented using groups in XML configuration.
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Q5. What is the difference between regression testing and smoke testing?
Ans. 
Regression testing checks existing features after changes, while smoke testing verifies basic functionality post-deployment.
• Regression testing ensures that new code changes do not adversely affect existing functionalities.

• Smoke testing is a preliminary test to check if the basic functions of an application work.

• Example of regression testing: After a new feature is added, testing all existing features to ensure they sti...read more
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Q6. Have you worked with custom exceptions? What exceptions have you encountered, and can you explain what a StaleElementReferenceException is?
Ans. 
Custom exceptions enhance error handling in automation testing, while StaleElementReferenceException indicates a DOM element is no longer valid.
• Custom Exceptions: These are user-defined exceptions that allow developers to create specific error handling scenarios tailored to their application needs.

• Common Exceptions: In automation testing, I've encountered exceptions like NoSuchElementException, TimeoutException, and St...read more
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Q7. Explain the waits and write code for explicit wait
Ans. 
Waits in automation testing manage timing issues between code execution and web element availability.
• Implicit Wait: Sets a default wait time for the entire session. Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

• Explicit Wait: Waits for a specific condition to occur before proceeding. Example: WebDriverWait wait = new WebDriverWait(driver, 10);

• Fluent Wait: Similar to explicit wait but allows p...read more
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Q8. What is the background of Behavior Driven Development (BDD)?
Ans. 
BDD is a software development approach that enhances collaboration between developers, testers, and non-technical stakeholders.
• Originated from Test Driven Development (TDD) to improve communication.

• Focuses on defining behavior in simple language, often using Gherkin syntax.

• Encourages collaboration through examples and scenarios, e.g., 'Given a user is logged in, when they click logout, then they should see the login pa...read more
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I was asked to write
1. java program for move positive numbers first and negative numbers last
2. java program to reverse the words in a string without using split method.
3. Selenium coding questions.

Q1. Oops concepts in python Testing concepts Framework related qsns
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Q1. Intro : tell me about yourself, roles and responsibilities, why do you want to join global logic ?
Ans. 
I am a QA Automation Testing Engineer with experience in various roles and responsibilities. I am interested in joining Global Logic for its global presence and reputation in the industry.
• I have worked as a QA Automation Testing Engineer for the past 5 years.

• My roles and responsibilities include designing and implementing automated test scripts, executing test cases, and reporting defects.

• I have experience in using too...read more
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Q2. Python : diff between list and tuple, decorators and fixtures, fibonacci program, print a multiplication table, for a given input print the value from a given dictionary
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Q3. Selenium: what are selenium components, what are the different locators in selenium, what is selenium web driver, write a xpath for a given element on a web page
Ans. 
Selenium components include Selenium IDE, Selenium RC, Selenium WebDriver. Different locators are ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector and XPath. Selenium WebDriver is a tool used to automate web application testing. XPath is a language used to navigate through XML documents and web pages.
• Selenium components: Selenium IDE, Selenium RC, Selenium WebDriver

• Different locators: ID, Name...read more
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Q4. Robot Framework : what are standard libraries in Robot Framework? Explain robot framework architechture, what is setup and teardown, write a sample login script using robot framework?
Ans. 
Answering questions related to Robot Framework and its standard libraries, architecture, setup and teardown, and a sample login script.
• Standard libraries in Robot Framework include BuiltIn, Collections, DateTime, Dialogs, OperatingSystem, Process, Screenshot, String, Telnet, and XML.

• Robot Framework architecture consists of test cases, test suites, and keywords.

• Setup and teardown are pre and post conditions for test cas...read more
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Q5. Do we have any specific tool for Robot Framework? If yes explain why we have to use it? Learn about built in actions in robot framework and keywords
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Q6. String programs, basic programs in python and some assertion questions in selenium
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Q7. What are the locators in selenium? what is the difference between driver.quit and drive.close? What is implicit wait and explicit wait ?
Ans. 
Answers to common Selenium interview questions.
• Locators in Selenium are used to identify web elements on a web page. Examples include ID, class name, name, tag name, link text, and partial link text.

• driver.quit() closes the entire browser window and ends the WebDriver session, while driver.close() only closes the current window or tab.

• Implicit wait is a global wait that applies to all web elements and waits for a speci...read more
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Q1. How do you convert json object to string and vice versa?
Ans. 
To convert JSON object to string, use JSON.stringify(). To convert string to JSON object, use JSON.parse().
• JSON.stringify() method converts a JavaScript object or value to a JSON string.

• JSON.parse() method parses a JSON string and returns a JavaScript object.

• Example: var obj = {name: 'John', age: 30}; var jsonString = JSON.stringify(obj); var jsonObj = JSON.parse(jsonString);

• Make sure the JSON string is valid, else it ...read more
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Q2. What are lists and its functions?
Ans. 
Lists are a collection of ordered and changeable elements. They have various functions to manipulate the data.
• Lists are created using square brackets []

• They can contain any data type such as strings, integers, or even other lists

• Functions include append(), insert(), remove(), pop(), sort(), and reverse()

• Example: my_list = ['apple', 'banana', 'cherry']

• Example: my_list.append('orange') adds 'orange' to the end of the lis...read more
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Q3. Write a program to find the elements of a list that have least difference in python? input = [3,9,50,15,99,7,98,65] output = [98,99]
Ans. 
Program to find elements of a list with least difference in Python
• Sort the list

• Find the minimum difference between adjacent elements

• Return the elements with minimum difference
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Q1. What is cypress ,difference between cypress and selenium
Ans. 
Cypress is a JavaScript-based end-to-end testing framework. It differs from Selenium in terms of architecture, ease of use, and speed.
• Cypress is a JavaScript-based testing framework for web applications.

• It provides a simple and intuitive API for writing tests.

• Cypress runs directly in the browser and can access everything on the page.

• Unlike Selenium, Cypress does not use WebDriver and has a different architecture.

• Cypres...read more
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Q2. Cypress folder structure and and its assertions
Ans. 
Cypress folder structure and its assertions
• Cypress follows a specific folder structure for organizing test files

• The 'fixtures' folder contains static data used in tests

• The 'integration' folder contains the actual test files

• The 'plugins' folder contains custom plugins and tasks

• The 'support' folder contains reusable functions and commands

• Cypress provides various assertions for validating test results

• Common assertions inc...read more
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Q3. What is assertions
Ans. 
Assertions are statements that verify the expected behavior of a software application during testing.
• Assertions are used to validate whether a certain condition is true or false.

• They help in identifying bugs and ensuring the correctness of the software.

• Assertions can be used to check the values of variables, compare expected and actual results, or verify the presence of certain elements.

• Examples of assertions include a...read more
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Q4. Api testing using cypress
Ans. 
Cypress is a powerful tool for API testing, allowing for easy automation and assertion of API endpoints.
• Cypress provides a simple and intuitive syntax for writing API tests

• It supports making HTTP requests and asserting responses

• Cypress allows for easy mocking and stubbing of API calls

• It provides detailed logs and error messages for debugging

• Cypress integrates well with other testing frameworks and tools
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Q5. Architecture about cypress
Ans. 
Cypress is a JavaScript-based end-to-end testing framework that runs directly in the browser.
• Cypress allows for easy and fast testing of web applications.

• It provides a rich set of APIs for interacting with elements and making assertions.

• Cypress runs directly in the browser, eliminating the need for Selenium or other external drivers.

• It supports modern JavaScript frameworks like React, Angular, and Vue.

• Cypress provides ...read more
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1. Write a java code to print smallest and largest word in the given sentence.
2.Java code to print the statement in reverse.
3. In notepad,interviewer asked us to write the code POM class and how to call it - (Basically they wanted to check the knowledge of PageFactory class.)
4.How to write the code from config file and excel sheet.
5.All Git command

Basic quant and reasoning questions
Selenium MCQ
Java programs with MCQ

Q1. Tell me about yourself
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Q2. Where you initialise driver
Ans. 
The driver is typically initialized in the setup method of a test automation framework.
• Driver initialization is usually done in a setup method before test execution.

• Commonly used methods for driver initialization include WebDriverManager, System.setProperty, and driver instantiation.

• Example: WebDriverManager.chromedriver().setup();
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Q3. Driver is static or non static
Ans. 
Driver can be both static and non-static depending on the context of its usage.
• Driver class can be static if it is used to initiate the WebDriver instance in a test automation framework.

• Driver class can be non-static if it is used as an instance variable within a test class.

• Static driver can be accessed directly without creating an object of the class.

• Non-static driver requires an object of the class to be created befo...read more
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Q4. Difference between static and non static
Ans. 
Static variables belong to the class itself, while non-static variables belong to instances of the class.
• Static variables are shared among all instances of a class

• Non-static variables are unique to each instance of a class

• Static variables are initialized only once, at the start of the program

• Non-static variables are initialized separately for each instance of the class
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Q5. Disadvantages of static and non static
Ans. 
Static and non-static have their own disadvantages in QA automation testing.
• Static methods cannot be overridden or inherited, making it difficult to create flexible test cases.

• Non-static methods require an instance of the class to be created, which can lead to increased memory usage.

• Static methods can lead to tight coupling between classes, making it harder to maintain and update the code.

• Non-static methods may have de...read more
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Q6. Parallel execution in TestNG
Ans. 
TestNG allows parallel execution of test cases to save time and improve efficiency.
• TestNG provides the 'parallel' attribute in the testng.xml file to specify the level of parallelism for test execution.

• Parallel execution can be achieved at the test level, class level, method level, or suite level.

• TestNG also supports parallel execution of tests across multiple classes or suites using the 'parallel' attribute in the sui...read more
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Q7. Write the code for Parallel testing in TestNG
Ans. 
Parallel testing in TestNG allows running tests concurrently for faster execution.
• Use 'parallel' attribute in testng.xml file to specify parallel execution mode.

• Set 'parallel' attribute to 'methods', 'classes', or 'tests' based on the level of parallelism needed.

• Example: <suite name='MySuite' parallel='tests'>

• Use 'thread-count' attribute to specify the number of threads to use for parallel execution.
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Q8. Difference between parallel methods and parallel tests
Ans. 
Parallel methods run multiple methods concurrently within a single test, while parallel tests run multiple tests concurrently.
• Parallel methods execute multiple methods within a single test class concurrently.

• Parallel tests execute multiple test classes concurrently.

• Parallel methods are useful for speeding up the execution of a single test, while parallel tests are useful for running multiple tests faster.

• Example: Runni...read more
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Q9. Upload file using rest assured
Ans. 
Use Rest Assured to upload a file
• Use the given file path to create a File object

• Use MultiPartSpecBuilder to build the request with the file

• Send the request using Rest Assured's given(), when(), and post() methods
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Q10. Postman basic questions
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Q11. Parameter for post method in postman
Ans. 
The parameter for a POST method in Postman is typically sent in the request body.
• Parameters are sent in the request body in key-value pairs

• Parameters can be sent as form-data, x-www-form-urlencoded, or raw JSON

• Example: {"key": "value"}
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Q12. BDD Framework cucumber
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Q13. Cucumber execution process
Ans. 
Cucumber executes tests by interpreting Gherkin syntax, running steps defined in code, and reporting results.
• Cucumber uses Gherkin language for writing test scenarios in a human-readable format.

• Each scenario consists of Given, When, Then steps that describe the behavior of the application.

• Step definitions in code map Gherkin steps to executable code, often written in Java, Ruby, or JavaScript.

• Cucumber executes scenario...read more
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Q14. How cucumber know step defination file placed
Ans. 
Cucumber knows the step definition file based on the annotations provided in the feature files.
• Cucumber uses annotations like @Given, @When, @Then to map steps in feature files to corresponding step definition methods.

• Step definition files are typically placed in a separate package or directory within the project structure.

• Cucumber scans the project directory for step definition files based on the package structure and...read more
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Q15. Parameters used in cucumber
Ans. 
Parameters used in cucumber are used to pass values to the step definitions in feature files.
• Parameters are defined in feature files using < > syntax

• Parameters can be passed to step definitions using Regular Expressions

• Parameters can be used to make scenarios more reusable and dynamic
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Q16. Datatable in cucumber
Ans. 
Datatable in Cucumber is used to pass multiple sets of data to a step definition in a scenario.
• Datatables are defined using pipes (|) to separate values

• Each row in the datatable represents a set of data passed to the step definition

• Datatables can be used for parameterization and data-driven testing
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Q17. Have u created the testplan document when porject was started
Ans. 
Yes, I have created the test plan document at the start of the project.
• Yes, I always create a test plan document at the beginning of a project to outline the testing approach and strategy.

• The test plan document includes details on scope, objectives, resources, schedule, and test cases.

• It helps in ensuring that all stakeholders are aligned on the testing process and expectations.

• For example, in my previous project, I cr...read more
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Q18. Testing cycle when project was on initial level
Ans. 
During the initial testing cycle of a project, focus is on establishing test cases, setting up test environments, and identifying potential issues.
• Creating test cases based on requirements

• Setting up test environments

• Identifying potential issues and risks

• Executing test cases and reporting defects

• Collaborating with developers to resolve issues
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Q19. Risk management and risk based testing
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Q20. Which estimate technique you follow , if fibonacci then why it is in 1 2 3 5 8 13 ?? Not in 12345678
Ans. 
Fibonacci sequence is a mathematical pattern where each number is the sum of the two preceding ones.
• Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones.

• The sequence starts with 1, 2, then each subsequent number is the sum of the two previous numbers (1+2=3, 2+3=5, 3+5=8, and so on).

• This sequence is used in estimating because it reflects natural growth patterns found in natur...read more
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Q21. What is testing matrix and automation ROI
Ans. 
Testing matrix is a tool used to track test coverage and automation ROI is the return on investment from implementing automation testing.
• Testing matrix is a visual representation of test cases, test scenarios, and their coverage across different platforms, browsers, devices, etc.

• Automation ROI is the measure of the benefits gained from automation testing compared to the costs incurred in implementing and maintaining th...read more
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Q22. Cicd tool
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Q23. Handle team ?
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Q1. What is inheritance
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits properties and behaviors from another class.
• Allows a class to inherit attributes and methods from another class

• Promotes code reusability and reduces redundancy

• Creates a parent-child relationship between classes

• Derived class can access public and protected members of the base class

• Example: Class Car can inherit from class Vehicle to reuse com...read more
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Q2. What is oops concepts
Ans. 
Object-oriented programming concepts that focus on data abstraction, encapsulation, inheritance, and polymorphism.
• Abstraction: Hiding the complex implementation details and showing only the necessary features to the outside world.

• Encapsulation: Binding data and methods that operate on the data into a single unit.

• Inheritance: Ability of a class to inherit properties and behavior from another class.

• Polymorphism: Ability ...read more
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Q1. What is your name
Ans. 
My name is John Smith.
• Full name is John Smith

• Common name in English-speaking countries

• No middle name or initial
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Q2. Where from you belong
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