Alert & Popup Window Handling in Selenium WebDriver

Alert is a small message box which displays on-screen notification to give the user some kind of information or ask for permission to perform certain kind of operation.

Types of Alerts in Selenium

Mainly we are dealing with two types of alerts that are:

• Windows-based alert pop-ups
• Web-based alert pop-ups

As we know that by using the Selenium WebDriver its is not possible to test window bases applications, that’s why we are using some third-party tools to handle the window-based pop-ups.

1. Simple Alert: It displays some information or warning on the screen.

2. Prompt Alert: This Prompt Alert asks some input from the user and selenium webdriver can enter the text using sendkeys(" INPUT").

3. Confirmation Alert: This confirmation alert asks permission to do some type of operation.

Methods of Handling Alerts:

1) void dismiss() // To click on the 'Cancel' button of the alert.

driver.switchTo().alert().dismiss();

2) void accept() // To click on the 'OK' button of the alert.

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

3) String getText() // To capture the alert message.

driver.switchTo().alert().getText();

4) void sendKeys(String stringToSend) // To send some data to alert box.

driver.switchTo().alert().sendKeys("Text");

package com.automation.eng.AutomationProject;

import java.util.concurrent.TimeUnit;

import org.junit.Test;

import org.openqa.selenium.Alert;

import org.openqa.selenium.By;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.firefox.FirefoxDriver;

import io.github.bonigarcia.wdm.WebDriverManager;

public class AlertHandling {

public WebDriver driver;

@Test

public void mouseHover() throws InterruptedException{

//setup the firefoxdriver using WebdriverManager

WebDriverManager.firefoxdriver().setup();

//Create driver object for Chrome

driver = new FirefoxDriver();

String url = "https://www.w3schools.com/js/tryit.asp?filename=tryjs_alert ";

//To maximize the browser

driver.manage().window().maximize();

//To delete all cookies

driver.manage().deleteAllCookies();

driver.manage().timeouts().implicitlyWait(20, TimeUnit.SECONDS);

//To invoke URL

driver.get(url);

//Switching to frame on same web page

driver.switchTo().frame("iframeResult");

// Locating and clicking on "Try it" button

driver.findElement(By.tagName("button")).click();

//Switching to Alert on same web page

Alert alert = driver.switchTo().alert();

// Fetching message on Alert box in a String

String messageOnAlert = alert.getText();

//displaying the message on Alert message

System.out.println("Message on Alert : "+ messageOnAlert);

// Explicit wait of 4 seconds so that you can see Alert for sometime

Thread.sleep(4000);

//Accepting an alert

alert.accept();

//Switching to parent page

driver.switchTo().defaultContent();

driver.close();

}

}

/*

* Message on Alert : I am an alert box!

*/

/