Handling alerts, pop-ups and authentication dialogs

Handling alerts, pop-ups and authentication dialogs

Handling alerts, pop-ups and authentication dialogs in Selenium involves interacting with these elements programmatically to perform actions such as accepting or dismissing them.

Examples

// Example 1: Handling alert
Alert alert = driver.switchTo().alert();
alert.accept();

// Example 2: Handling pop-up
WebDriverWait wait = new WebDriverWait(driver, 10);
wait.until(ExpectedConditions.alertIsPresent());
Alert popUp = driver.switchTo().alert();
popUp.dismiss();

// Example 3: Handling authentication dialog
String username = "exampleUser";
String password = "password123";
String auth = username + ":" + password;
byte[] encodedAuth = Base64.getEncoder().encode(auth.getBytes());
String authHeader = "Basic " + new String(encodedAuth);
driver.navigate().to("https://example.com");

FAQ (interview questions and answers)

1. How do you handle alerts in Selenium?
   By using the switchTo().alert() method
   By using the switchTo().frame() method
   By using the click() method
   
2. What is the purpose of handling authentication dialogs in Selenium?
   To dismiss pop-ups
   To provide credentials for accessing web pages
   To execute test cases
   
3. How can you handle pop-ups in Selenium?
   By using the Thread.sleep() method
   By using WebDriverWait and ExpectedConditions.alertIsPresent()
   By using the findElement() method
   
4. What method do you use to switch to an alert in Selenium?
   switchTo().alert()
   switchTo().frame()
   click()
   
5. How do you handle authentication dialogs in Selenium?
   By providing credentials using Base64 encoding
   By using the Thread.sleep() method
   By using the findElement() method
   

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