e-Zest Automation Test Engineer Interview Questions and Answers

FirefoxDriver is a class in Selenium WebDriver used to automate Firefox browser testing.

• FirefoxDriver is a part of Selenium WebDriver library.

• It is used to automate testing of web applications on Firefox browser.

• It supports all the major functionalities of Firefox browser.

• It can be used with different programming languages like Java, Python, etc.

• Example: FirefoxDriver driver = new FirefoxDriver();

Implicit wait waits for a certain amount of time before throwing an exception while explicit wait waits for a certain condition to occur before proceeding.

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

• Explicit wait is set for a specific element and waits for a certain condition to be met before proceeding

• Examples of conditions for explicit wait include element to be clickable, visible, or pr...read more

Performance testing is the process of evaluating the speed, responsiveness, stability, and scalability of a software application.

• It involves simulating real-world scenarios to measure the application's performance under different loads and stress levels.

• Performance testing helps identify bottlenecks, memory leaks, and other issues that can affect the application's performance.

• Examples of performance testing tools inclu...read more

Different roles in Agile include Product Owner, Scrum Master, and Development Team.

• Product Owner is responsible for defining and prioritizing the product backlog.

• Scrum Master facilitates the Scrum process and removes any impediments that may arise.

• Development Team is responsible for delivering a potentially releasable product increment at the end of each sprint.

Agile Manifesto is a set of guiding values and principles for Agile software development.

• Agile Manifesto emphasizes on individuals and interactions, working software, customer collaboration, and responding to change.

• It values working software over comprehensive documentation.

• It promotes adaptive planning and continuous improvement.

• It encourages self-organizing teams and face-to-face communication.

• Examples of Agile meth...read more

Scrum Master is responsible for facilitating the Scrum process and ensuring the team follows Agile principles.

• Facilitating Scrum ceremonies (daily stand-ups, sprint planning, sprint review, and retrospective)

• Removing impediments that hinder the team's progress

• Coaching the team on Agile principles and practices

• Ensuring the team follows the Scrum framework

• Facilitating communication and collaboration between team members ...read more

Test scenarios for uploading videos to YouTube include various functional and non-functional tests to ensure a smooth user experience.

• Verify file format compatibility (e.g., MP4, AVI).

• Check maximum file size limit (e.g., 128GB).

• Test upload speed with different internet connections.

• Validate error messages for unsupported formats.

• Ensure video metadata (title, description, tags) is saved correctly.

• Test privacy settings (p...read more

Performance testing scenario for uploading video to Youtube

• Create a test plan with realistic user scenarios

• Simulate multiple users uploading videos simultaneously

• Measure response time, throughput, and resource utilization

• Test with different file sizes and formats

• Monitor server and network performance

• Analyze results and identify bottlenecks

Stub is a fake implementation of a module while driver is a software component that interacts with the system under test.

• Stub is used to simulate the behavior of a module that is not yet implemented or is unavailable for testing.

• Driver is used to provide input to the system under test and to capture the output generated by it.

• Stub is used in top-down approach while driver is used in bottom-up approach.

• Example of stub i...read more

Retrieve the maximum salary from an employee table using SQL query.

• Use the SQL MAX() function to find the highest salary.

• Example query: SELECT MAX(salary) FROM employees;

• You can also group by departments to find max salary per department.

• Example: SELECT department, MAX(salary) FROM employees GROUP BY department;