Selenium Interview Questions & Answers

WebDriver exposes the following methods to handle such popups:

• Dismiss(): It handles the alert by simulating the cancel button
• Accept(): It handles the alert by simulating the Ok button
• GetText(): You may call it to find the text shown by the alert
• SendKeys(): This method simulated keystrokes in the alert window

8. Write code to wait for a particular element to be visible on a page.

JavaScriptExecutor js = (JavaScriptExecutor)driver;  js.executeScript("arguments[0].scrollIntoView();",element);

11. How can you fetch an attribute value from an element in Selenium?

We can fetch the attribute value of an element by using the getAttribute() method. Sample code:

WebElement eLogin = driver.findElement(By.name("Login"));
String LoginClassName = elogin.getAttribute("classname");

12. How to retrieve typed text from a textbox?

We can use getText() method to retrieve some text from textbox. S

Sample code:

WebElement eLogin = driver.findElement(By.name("Login")); 
String loginText = eLogin.getText();

File scrFile = ((TakeScreenshot)driver).getScreenshotAs(ouputType.FILE);

14. Can we enter text without using SendKeys() method?

We can do it using JavaScriptExecutor.

JavaScriptExecutor js = (JavaScriptExecutor)driver;  js.executeScript("document.getElementById('Login').value=Enter text");

15. How to select a value in a dropdown?

We can select value using Select class. Sample code:

WebElement myElement = driver.findElement(By.name("dropdown")); 
Select select = new Select(myElement); 
select.selectByVisibleText(Text); 
select.selectByIndex(Index); 
select.selectByValue(Value);

16. What is fluent wait in Selenium?

A fluent wait is a type of wait in which we can also specify polling intervals(intervals after which driver will try to find the element) along with the maximum timeout value.

Wait wait = new FluentWait(driver);
 .withTimeout(20, SECONDS);
 .pollingEvery(5, SECONDS);
 .ignoring(NoSuchElementException.class); 
 WebElement textBox = wait.until(new Function(){ 
 public WebElement apply(WebDriver driver){ 
 return driver.findElement(By.Id("textBoxId")); }});

17. How to locate a link using its text in Selenium?

Using linkText() and partialLinkText() we can a locate a link. The difference between the two is linkText matches the complete string passed as parameter to the link texts. Whereas partialLinkText matches the string parameter partially with the link texts.

WebElement link1 = driver.findElement(By.linkText("artOfTesting"));  WebElement link2 = driver.findElement(By.linkText("artOf"));

18. How to do drag and drop in selenium?

Using Actions class, drag and drop can be performed in Selenium. Sample code:

Actions builder = new Actions(driver);
Action dragAndDrop = builder.clickAndHold(SourceElement)       
 .moveToElement(TargetElement) 
 .release(TargetElement)
 .build(); 
dragAndDrop.perform();

19. How to handle alerts in Selenium?

In order to accept or dismiss an alert box the alert class is used. This requires first switching to the alert box and than using accept() or dismiss() command.

Alert alert = driver.switchTo().alert();
alert.accept();
alert.dismiss();

20. How to launch a batch file in Selenium Webdriver?

We usually run a batch file or executable file for setting up the prerequisites before starting the automation. You can use the below java code for this purpose:

Process batch = Runtime.getRuntime.exec("path of batch file"); batch.waitFor();

21. What is the process to start Chrome/IE browser?

If you want to start a browser then, just set the system properties as mentioned below:

// For the IE web browser 
System.setProperty("webdriver.ie.driver,"iedriver.exe");
WebDriver driver = new InternetExplorerDriver(); 
//For the Chrome web browser 
System.setProperty("webdriver.chrome.driver,"chromedriver.exe file path");
WebDriver driver = new ChromeDriver();

22. How would you simulate the right click operation on WebDriver?

You can make use of the Actions class features.

Actions action = new Actions(driver);  action.moveToElement(element).perform();  action.contextClick().perform();

FileInputStream fis = new FileInputStream("path of excel file"); 
Workbook wb = WorkbookFactory.create(fis); 
Sheet s = wb.getSheet("sheetName");
// read data
String value = s.getRow(rowNum).getCell(cellNum).getStringCellValue();
// write data 
s.getRow(rowNum).getCell(cellNum).setStringCell("value to be set"); 
FileOutputStream fos = new FileOutputStream("path of file"); 
wb.write(fos); //save file

24. How can you check that element is not present using Selenium?

If the below method returns false than we can assert that element is not present in DOM.

public boolean isElementPresent(By locatorKey) { 
 try { driver.findElement(locatorKey); 
 return true; } 
catch (org.openqa.selenium.NoSuchElementException e) { 
return false; } }

25. What is Page Factory and how it is implemented in Selenium?

Page Factory class in Selenium is an extension to the Page Object Design pattern. It is used to initialize the elements of the page object or instantiate the page objects itself.
Annotations in Page Factory are like this:

@FindBy(id = “userName”) 
WebElement txt_UserName;

PageFactory.initElements(driver, Login.class);

@FindBy(id = "userName") 
@CacheLookup 
private WebElement txt_UserName;