Mendu Enterprise Auto CAD Engineer Interview Questions and Answers

Absolute Xpath starts from the root element, while relative Xpath starts from any node in the DOM structure.

• Absolute Xpath starts with a single forward slash (/) and starts selection from the root node.

• Relative Xpath starts with a double forward slash (//) and starts selection from the current node or any node in the DOM structure.

• Absolute Xpath is more brittle and prone to breaking if the structure of the page changes...read more

The return would be the number of tabs open in the browser.

• The return value would be an integer representing the count of open tabs.

• For example, if there are 5 tabs open, the return value would be 5.

Types of waits in Selenium include Implicit Wait, Explicit Wait, and Fluent Wait.

• Implicit Wait: Waits for a certain amount of time before throwing a NoSuchElementException.

• Explicit Wait: Waits for a certain condition to occur before proceeding further in the code.

• Fluent Wait: Waits for a condition to be true with a defined polling frequency.

• Example: driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);

Exceptions in Selenium are errors that occur during test execution, disrupting the flow of the test script.

• Exceptions are thrown when there is an unexpected behavior in the application under test or in the test script itself.

• Common exceptions in Selenium include NoSuchElementException, ElementNotVisibleException, TimeoutException, and StaleElementReferenceException.

• Handling exceptions in Selenium can be done using try-...read more

Feature files contain high-level description of the functionality to be tested, while step definitions are the implementation of the steps in the feature file using code.

• Feature files are written in Gherkin syntax and describe the behavior of the application in plain text.

• Step definitions are written in programming languages like Java, Ruby, etc., and map the steps in the feature file to automation code.

• Feature files a...read more

Data can be input in Cucumber using feature files and step definitions.

• Data can be input in feature files using scenarios and scenario outlines

• Step definitions can be used to define the actions to be taken with the input data

• Data tables can be used in feature files to input structured data

• Examples keyword can be used in scenario outlines to provide multiple sets of input data

Test case is a set of conditions or variables under which a tester will determine whether a system under test satisfies requirements. Test plan is a document outlining the scope, approach, resources, and schedule of testing activities. Test scenarios are detailed descriptions of possible interactions with the system.

• Test case: specific conditions to be tested, expected results, steps to execute

• Test plan: overall strate...read more

Hooks in Java are methods that allow subclasses to override or extend the behavior of a superclass.

• Hooks are commonly used in frameworks like JUnit and TestNG for test automation.

• They are often used for setup and teardown operations before and after test methods.

• Examples include @Before, @After, @BeforeClass, and @AfterClass annotations in JUnit.

The output of the code will be 'animal is created' followed by 'Dog is created'.

• The code defines a class Animal with a constructor that prints 'animal is created'.

• It also defines a class Dog that extends Animal, with a constructor that prints 'Dog is created'.

• In the main method, an instance of Dog is created, which will trigger the constructors of both Animal and Dog classes.

The output will be 'HelloThere'

• Concatenation of 'Hello' and 'There' results in 'HelloThere'

• The final string is printed using System.out.println()

The code creates a StringBuffer object with 'Hello' and appends 'There' to it before printing the final string.

• StringBuffer is mutable, so the original 'Hello' string can be modified

• The append() method adds the specified string to the end of the buffer

• The final output will be 'HelloThere'

Option a is valid, option b is valid, option c is invalid.

• Option a is valid because ChromeDriver is a subclass of WebDriver, so it can be assigned to a WebDriver reference.

• Option b is valid because ChromeDriver is a subclass of WebDriver, so it can be instantiated using a WebDriver reference.

• Option c is invalid because WebDriver is an interface and cannot be instantiated directly. It can only be used as a reference typ

Sort input array of strings in descending order without using inbuilt functions

• Iterate through the array and compare each element with the rest to find the largest element

• Swap the largest element with the first element, then repeat the process for the remaining elements

• Continue this process until the array is sorted in descending order

findElement returns the first matching element on the page, while findElements returns a list of all matching elements.

• findElement returns a single WebElement matching the locator provided

• findElements returns a list of WebElements matching the locator provided

• findElement will throw NoSuchElementException if no element is found, while findElements will return an empty list

getwindowhandle returns the handle of the current window, getwindowhandles() returns handles of all open windows

• getwindowhandle returns a single window handle, while getwindowhandles() returns a set of window handles

• getwindowhandle is used to switch between windows in Selenium WebDriver

• Output type of getwindowhandle is String, while output type of getwindowhandles() is Set