Unexpected alert handling in Selenium Java - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is an unexpected alert in Selenium?

An unexpected alert is a popup message (like an alert box) that appears without warning during test execution, which can interrupt the test flow if not handled.

beginner

How do you switch to an alert in Selenium WebDriver using Java?

Use driver.switchTo().alert() to switch the WebDriver's focus to the alert popup so you can interact with it.

beginner

Which method accepts an alert in Selenium WebDriver?

The method alert.accept() clicks the OK button on the alert, closing it and allowing the test to continue.

intermediate

What exception does Selenium throw if an unexpected alert appears?

Selenium throws UnhandledAlertException when an alert appears unexpectedly and is not handled.

intermediate

How can you handle unexpected alerts to avoid test failures?

You can catch UnhandledAlertException in a try-catch block, switch to the alert, accept or dismiss it, and then continue the test.

Which Selenium method switches the driver focus to an alert?

A driver.switchTo().alert()

B driver.findElement(By.alert())

C driver.switchTo().window()

D driver.getAlert()

Use driver.switchTo().alert() to access the alert popup.

What happens if an unexpected alert appears and is not handled?

A Selenium throws UnhandledAlertException

B Test continues without interruption

C Alert is ignored automatically

D Test passes successfully

Selenium throws UnhandledAlertException when an alert is not handled.

Which method closes an alert by clicking OK?

A alert.dismiss()

B alert.stop()

C alert.close()

D alert.accept()

alert.accept() clicks OK on the alert popup.

How can you handle an unexpected alert in your test code?

A Ignore the alert and continue

B Use try-catch to catch UnhandledAlertException and accept the alert

C Restart the browser

D Use driver.close()

Catching UnhandledAlertException and accepting the alert allows the test to continue.

Which exception is specifically related to unexpected alerts in Selenium?

A NoSuchElementException

B TimeoutException

C UnhandledAlertException

D ElementNotVisibleException

UnhandledAlertException occurs when an alert is not handled.

Explain how to detect and handle an unexpected alert in Selenium WebDriver using Java.

Think about how to catch exceptions and interact with alerts.

Describe why handling unexpected alerts is important in automated testing.

Consider what happens if alerts are ignored.