Interview Questions

Question 1

What are the limitations of Selenium

Answer 1

• Can only test web applications
• Limited support for image testing
• No built-in reporting
• Limited test management

Question 2

What are the types of web locators

Answer 2

• ID
• linkText
• Name
• Tag name
• Class name
• X-Path
• CSS selector

Question 3

What are the types of waits?

Answer 3

• Implicit: wait for a defined period of time
• Explicit: wait for a defined expected condition
• Fluent: wait for a defined expected condition and check for element with defined frequency

Question 3

What are the navigation commands?

Answer 3

• to()
  Navigates to provided URL
• refresh()
  Refreshes the current page
• forward()
  Goes to next page
• back()
  Goes to previous page

Question 4

Difference between driver.close() and driver.quit()

Answer 4

• close() command closes the browser’s current window.
• quit() closes all open browser windows

Question 5

How can we type text into an input box?

Answer 5

sendKeys()

Question 6

How can we click a hyperlink?

Answer 6

Identify element using:
- linkText()
- partialLinkText()

Question 7

How can we scroll down a page?

Answer 7

By using JavascriptExecutor

Question 8

How to assert the title of a webpage?

Answer 8

getTitle() returns the title of the current webpage

Question 9

How to mouse hover over an element?

Answer 9

moveToElement() included in the Actions class

Question 10

How to retrieve CSS properties of an element?

Answer 10

getCssValue()

Question 11

What is a Page Object Model?

Answer 11

A design pattern where:
- Every webpage is represented as a separate class
- Each class contains element identifiers and actions

Test cases are stores in separate classes than page object classes

Question 12

Can Captcha be automated?

Answer 12

No

Question 13

How does Selenium handle Windows bases pop-ups?

Answer 13

Selenium cannot handle pop ups outside of the web page. Third party tools can be integrated with Selenium to handle pop-ups

AutoIT, Robot - simulates mouse movement, keystrokes

Question 14

How can we take screenshots?

Answer 14

TakeScreenshot and getScreenshotAs()

Question 15

Can you type in a textbox without using sendKeys()?

Answer 15

Yes, using JavascriptExecutor

JavascriptExecutor jse = (JavascriptExecutor) driver;

jse executeScript (“document getElementById( ‘email’).value=”abc.efg@xyz.com”);

Question 16

How can we select a value from a dropdown?

Answer 16

Using Select

Question 17

What does the switchTo() function do?

Answer 17

Used to switch between active windows

Question 18

How can we upload a file?

Answer 18

Using sendKeys() and file path

or Robot to simulate mouse/keys events

Question 19

How can we set the window size?

Answer 19

Using manage()
- maximize()
- setSize()

Question 20

findElement() vs findElements()

Answer 20

findElements() returns a list of elements
findElement() returns the first matching element

Question 21

How to handle an Authentication pop-up for Login?

Answer 21

Using Alert class and authenticateUsing method

Question 22

Single vs double slash in xPath?

Answer 22

Single slash creates absolute path
Double slash creates relative path

Question 23

How can we find broken links?

Answer 23

By checking response codes
200 OK - link is valid
404 - Link Not Found
400 - Bad Request
401 - Unauthorized
500 - Internal error