Selenium : Handling Alert messages from Javascript

 The Following code is used handle Alert message in webpages from javascript.

Refer - http://selenium.googlecode.com/svn/trunk/docs/api/java/org/openqa/selenium/support/ui/ExpectedConditions.html

/* The following code goes to http://www.w3schools.com/js/tryit.asp?filename=tryjs_intro_validate" , where a JS Alert is popped whenever a user types a non-numeric value to message box */

import

org.openqa.selenium.Alert;

import

org.openqa.selenium.By;

import

org.openqa.selenium.WebDriver;

import

org.openqa.selenium.WebElement;

import

org.openqa.selenium.firefox.FirefoxDriver;

import

org.openqa.selenium.support.events.EventFiringWebDriver;

import

org.openqa.selenium.support.ui.ExpectedConditions;

import

org.openqa.selenium.support.ui.WebDriverWait;

　

public

class handle_javascript_err {

public static void main(String[] args) throws InterruptedException

{

WebDriver driver=

new FirefoxDriver();

EventFiringWebDriver d=

new EventFiringWebDriver(driver);

driver.get(

"http://www.w3schools.com/js/tryit.asp?filename=tryjs_intro_validate");

driver.switchTo().frame(

"viewIFRAME");

driver.findElement(By.id(

"demo")).sendKeys("abc");

driver.findElement(By.xpath(

"//button[text()='Click Me!']")).click();

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");

driver.switchTo().alert().accept();

}

Thread.sleep(5000);

driver.findElement(By.id(

"demo")).sendKeys("abcfff");

driver.quit();

}

}