How to check if an alert exists using WebDriver?
public boolean isAlertPresent() { try { driver.switchTo().alert(); return true; } // try catch (NoAlertPresentException Ex) { return false; } // catch } // isAlertPresent()check the link here https://groups.google.com/forum/?fromgroups#!topic/webdriver/1GaSXFK76zY
The following (C# implementation, but similar in Java) allows you to determine if there is an alert without exceptions and without creating the WebDriverWait object.
boolean isDialogPresent(WebDriver driver) { IAlert alert = ExpectedConditions.AlertIsPresent().Invoke(driver); return (alert != null);}
I would suggest to use ExpectedConditions and alertIsPresent(). ExpectedConditions is a wrapper class that implements useful conditions defined in ExpectedCondition interface.
WebDriverWait wait = new WebDriverWait(driver, 300 /*timeout in seconds*/);if(wait.until(ExpectedConditions.alertIsPresent())==null) System.out.println("alert was not present");else System.out.println("alert was present");