70+ Selenium Automation Tester Interview Questions and Answers

Use Selenium WebDriver to find and count all text boxes on a web page.

• Use Selenium WebDriver to locate all text boxes on the web page

• Use findElements method with input tag and type attribute as text to find all text boxes

• Get the size of the list of elements to get the count of text boxes

To reduce execution time in Selenium, optimize test scripts, use efficient locators, and run tests in parallel.

• Optimize test scripts by removing unnecessary steps and reducing wait times

• Use efficient locators such as CSS selectors instead of XPath

• Run tests in parallel using tools like Selenium Grid or TestNG

• Use headless browsers like PhantomJS to speed up tests

• Use page object model to reduce code duplication and improve maintainability

Test Stub simulates the behavior of a module that a component depends on, while Test Driver controls the execution of the test case.

• Test Stub is used to simulate the behavior of a module that a component depends on.

• Test Driver is used to control the execution of the test case and interact with the component being tested.

• Test Stub provides canned answers to calls made during the test, while Test Driver initiates the test execution.

• Example: In a banking application, if the modu...read more

Selenium is a popular choice for web application testing due to its open-source nature, cross-browser compatibility, and robust automation capabilities.

• Selenium is open-source, making it cost-effective for organizations.

• Selenium supports multiple programming languages like Java, Python, and C#, providing flexibility to automation testers.

• Selenium offers cross-browser compatibility, allowing tests to be run on different browsers like Chrome, Firefox, and Safari.

• Selenium provid...read more

STLC is a systematic approach to software testing that defines the testing process from start to finish.

• STLC consists of phases like requirement analysis, test planning, test design, test execution, and test closure.

• Each phase has specific goals and deliverables to ensure the quality of the software.

• STLC helps in identifying defects early in the development cycle, reducing the cost of fixing them later.

• It ensures that the software meets the specified requirements and is ready...read more

Best practices in test automation include proper planning, maintenance, collaboration, and continuous improvement.

• Create a solid test automation strategy before starting automation efforts.

• Use version control to manage test scripts and ensure traceability.

• Regularly review and update test scripts to maintain relevance and accuracy.

• Collaborate with developers and other team members to align automation efforts with development cycles.

• Implement continuous integration to run autom...read more

A test automation framework consists of different components that help in organizing and executing automated tests efficiently.

• Test scripts: Actual test cases written in a programming language like Java or Python.

• Test data: Input data required for executing the test cases.

• Test environment: Configuration settings for executing tests on different platforms.

• Reporting: Generation of test reports to analyze test results.

• Logging: Recording of events and activities during test execu...read more

BDD is a software development approach that encourages collaboration between developers, testers, and business stakeholders.

• BDD focuses on defining the behavior of a system through examples in plain text

• Uses a common language (like Gherkin syntax) to describe the expected behavior

• Tests are written in a way that they can be easily understood by non-technical stakeholders

• Promotes communication and collaboration between different team members

Selenium is a testing framework for web applications, while Cucumber is a tool for behavior-driven development.

• Selenium is a testing framework used for automating web applications, while Cucumber is a tool for behavior-driven development (BDD).

• Selenium supports multiple programming languages like Java, Python, etc., while Cucumber uses Gherkin syntax for writing test cases.

• Selenium focuses on automating the testing process, while Cucumber focuses on collaboration between deve...read more

Automating CAPTCHA testing involves using third-party services or implementing custom solutions.

• Use third-party services like 2Captcha or Anti-Captcha to solve CAPTCHAs programmatically.

• Implement custom solutions using image recognition libraries like OpenCV to identify and solve CAPTCHAs.

• Integrate CAPTCHA solving functionality into your Selenium automation scripts for seamless testing.

Scenario is a single test case while Scenario Outline is a template for multiple test cases.

• Scenario is a single test case that describes a particular behavior of the system

• Scenario Outline is a template for multiple test cases with placeholders for input values

• Scenario Outline uses Examples table to provide input values for each test case

• Scenario Outline reduces code duplication and makes test cases more maintainable

To upload resume using Selenium, use sendKeys() method to locate the file input element and pass the file path.

• Locate the file input element using any of the locators like id, name, class, etc.

• Use sendKeys() method to pass the file path to the file input element.

• Click on the submit button to upload the file.

Red only is a type of constant used in Selenium to locate web elements based on their color.

• Red only is used to locate elements that have a specific color, such as a red button.

• Constants are variables that hold a fixed value and are used in Selenium to make code more readable and maintainable.

• Red only is a type of constant that holds the value 'red' and is used in conjunction with other locators, such as ID or class name.

Data flow testing is a type of white box testing that focuses on the paths that data takes through the application.

• It involves tracing the flow of data through the application to identify any potential issues or errors.

• Data flow testing helps in ensuring that data is processed correctly and efficiently.

• Examples of data flow testing techniques include control flow testing, data dependency testing, and variable definition testing.

Answers to common interview questions for Selenium Automation Tester position

• Overloading is when a class has multiple methods with the same name but different parameters, while overriding is when a subclass provides a specific implementation for a method that is already defined in its superclass.

• POM (Page Object Model) is a design pattern in Selenium automation testing where web pages are represented as classes, and the web elements on the page are defined as variables within...read more

Grouping in Cucumber allows for organizing related scenarios into logical groups for better management and execution.

• Grouping helps in organizing related scenarios together for better readability and maintenance.

• Tags are used to group scenarios in Cucumber.

• Grouping allows for running specific sets of scenarios based on tags.

• Grouping can be used to run scenarios in parallel or sequentially.

• Example: @smokeTest tag can be used to group all smoke test scenarios together.

Boundary value analysis is a software testing technique used to identify errors at boundaries of input ranges.

• It involves testing the boundaries of input ranges, including minimum, maximum, and just beyond the boundaries.

• Helps in identifying errors that may occur at the edges of input values.

• Example: If a system accepts values from 1 to 100, boundary value analysis would test inputs like 0, 1, 100, and 101.

• It is a black-box testing technique that focuses on the input domain o...read more

1) continue - skips the current iteration and continues with the next iteration in a loop. break - exits the loop immediately. 2) Maven is a build automation tool used primarily for Java projects. 3) Extent Report is a reporting library for Selenium test automation.

• continue statement is used to skip the current iteration and continue with the next iteration in a loop

• break statement is used to exit the loop immediately

• Maven is a build automation tool that manages project depen...read more

Implicit wait is a global wait applied to all elements, while explicit wait is a specific wait applied to a particular element or condition.

• Implicit wait is set once and applied to all elements in the script

• Explicit wait is set for a specific element or condition

• Implicit wait is defined at the driver level

• Explicit wait is defined at the element level

• Implicit wait is used to wait for elements to appear on the page

• Explicit wait is used to wait for a specific condition to occur

• I...read more

To perform right click using Selenium, we can use the Actions class and its contextClick() method.

• Create an instance of Actions class

• Use the contextClick() method to perform right click

• Pass the WebElement on which right click needs to be performed as argument

• Use build() and perform() methods to execute the action

There are 8 types of locators in Selenium: ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector, XPath.

• ID - locates elements by their ID attribute

• Name - locates elements by their Name attribute

• Class Name - locates elements by their Class attribute

• Tag Name - locates elements by their HTML tag name

• Link Text - locates elements by the exact text of a link

• Partial Link Text - locates elements by a partial match of the link text

• CSS Selector - locates elements u...read more

The code takes a name as input, prints each letter separately, and identifies repeated vowels.

• Create a function that takes a string input for the name

• Iterate through each letter in the name and print it separately

• Track the vowels and check for repetitions to print repeated vowels

Collections are used to store and manipulate groups of objects. Frameworks used in Selenium automation testing include TestNG, JUnit, and Cucumber.

• Collections are used to store and manipulate groups of objects

• Frameworks used in Selenium automation testing include TestNG, JUnit, and Cucumber

To drag and drop using Selenium, we can use the Actions class and its dragAndDrop() method.

• Create an instance of Actions class

• Use the dragAndDrop() method to specify the source and target elements

• Perform the action using the build() and perform() methods

Swap pair of characters in each string of an array of strings.

• Iterate through each string in the array

• For each string, swap pairs of characters by iterating through the string with a step of 2

• Return the modified array of strings

Protractor is an end-to-end test framework for Angular and AngularJS applications.

• Protractor is built on top of WebDriverJS and uses Jasmine for test syntax.

• It is specifically designed to test Angular and AngularJS applications.

• Protractor can interact with elements on the page using locators like model, binding, repeater, etc.

• It supports both synchronous and asynchronous testing.

• Protractor can handle Angular-specific tasks like waiting for Angular to finish rendering before i...read more

Multiple inheritance is not supported in Java due to the Diamond Problem, but can be achieved using interfaces.

• Java does not support multiple inheritance of classes due to the Diamond Problem

• Multiple inheritance can be achieved in Java using interfaces

• Create multiple interfaces with desired methods and implement them in a single class