org.openqa.selenium.UnhandledAlertException: unexpected alert open

Question

I am using a Chrome Driver and trying to test a webpage.

Normally it runs fine, but sometimes I get exceptions:

 org.openqa.selenium.UnhandledAlertE         


        

Answer 1

Is your switch to alert within a try/catch block? You may also want to add a wait timeout to see if the alert shows up after a certain delay

try {
    // Add a wait timeout before this statement to make 
    // sure you are not checking for the alert too soon.
    Alert alt = driver.switchTo().alert();
    alt.accept();
} catch(NoAlertPresentException noe) {
    // No alert found on page, proceed with test.
}