10+ Sdet Automation Test Engineer Interview Questions and Answers for Freshers

To wait in Selenium, we can use explicit and implicit waits. To find all links in a page using XPath, we can use the findElements() method.

• To wait in Selenium, we can use explicit wait with ExpectedConditions or implicit wait with the setScriptTimeout() method.

• Explicit wait waits for a certain condition to occur before proceeding with the next steps.

• Implicit wait sets a maximum time for the driver to wait for an element to appear.

• To find all links in a page using XPath, we ca...read more

Page Object Model (POM) is a design pattern used in test automation to create an object repository for web UI elements.

• POM helps in creating reusable and maintainable code by separating the test logic from the page-specific details.

• Each web page is represented as a separate class, and the UI elements and their actions are defined as methods within that class.

• POM improves code readability, reduces code duplication, and enhances test maintenance.

• TestNG annotations are used in T...read more

To handle alerts in Selenium, we use the Alert interface and its methods.

• To switch to an alert, we use the switchTo() method of WebDriver class.

• To accept or dismiss an alert, we use the accept() or dismiss() method of Alert interface.

• To get the text of an alert, we use the getText() method of Alert interface.

• To send text to an alert, we use the sendKeys() method of Alert interface.

To take a screenshot in automation testing, use the built-in methods provided by the testing framework.

• In Selenium, use the getScreenshotAs() method to capture a screenshot.

• In Appium, use the getScreenshotAs() method to capture a screenshot.

• In TestNG, use the ITestResult interface to capture a screenshot on test failure.

• In Cucumber, use the After hook to capture a screenshot after each scenario.

There are 8 locators present in Selenium.

• Selenium provides 8 different locators to identify elements on a web page.

• The locators are: ID, Name, Class Name, Tag Name, Link Text, Partial Link Text, CSS Selector, and XPath.

• Each locator has its own syntax and usage.

• For example, to locate an element by ID, you can use driver.findElement(By.id("elementId"));

To find broken links, use a link checker tool or browser extension.

• Use a link checker tool like Xenu's Link Sleuth or W3C Link Checker

• Install a browser extension like Check My Links for Chrome or Link Checker for Firefox

• Manually check links by clicking on them and checking for error messages

• Regularly check for broken links to ensure website functionality

Dynamic elements in Selenium are handled using techniques like explicit waits, fluent waits, and dynamic locators.

• Use explicit waits to wait for a specific condition to be met before interacting with the element

• Use fluent waits to wait for an element to be present and visible before interacting with it

• Use dynamic locators like XPath with functions to locate elements that change dynamically

Smoke testing is a quick test to check if the build is stable, while sanity testing is a more thorough test to check if the specific functionalities are working as expected.

• Smoke testing is done to ensure the stability of the build before further testing, while sanity testing is done to ensure the specific functionalities are working correctly.

• Smoke testing is a subset of regression testing, while sanity testing is a subset of acceptance testing.

• Smoke testing is usually done ...read more

POM (Page Object Model) is a design pattern used in test automation to create reusable and maintainable code by separating page objects from test scripts.

• Create a separate class for each web page or component

• Encapsulate the web elements and their actions within the page class

• Use methods in the page class to interact with the web elements

• In test scripts, instantiate the page class and call its methods to perform actions on the page

Inspecting elements on a webpage helps identify links and their attributes for automation testing.

• Use browser developer tools (F12) to open the inspector.

• Navigate to the 'Elements' tab to view the HTML structure.

• Right-click on the link element to view its properties.

• Check attributes like 'href', 'target', and 'class' for automation scripts.

• Use the 'Console' tab to test JavaScript commands related to the link.

Program to find duplicates in an array.

• Iterate through the array and compare each element with the rest of the elements.

• If a match is found, add it to a separate array or print it.

• Use a hash table to keep track of the frequency of each element.

• Sort the array and compare adjacent elements to find duplicates.

Selenium waits are used to pause the execution of the script, while the difference is in the way they wait for an element.

• Implicit wait is used to wait for a certain amount of time before throwing an exception if the element is not found.

• Explicit wait is used to wait for a certain condition to occur before proceeding with the execution.

• Fluent wait is used to wait for an element with a certain frequency and timeout period.

• The difference between them is that implicit wait is ap...read more