<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
       <groupId>NoSuchWindowException</groupId>
       <artifactId>NoSuchWindowException</artifactId>
       <version>0.0.1-SNAPSHOT</version>
       <build>
           <sourceDirectory>src</sourceDirectory>
           <plugins>
               <plugin>
                   <artifactId>maven-compiler-plugin</artifactId>
                   <version>3.8.1</version>
                   <configuration>
                       <release>19</release>
                   </configuration>
               </plugin>
           </plugins>
       </build>
       <dependencies>
           <dependency>
               <groupId>org.seleniumhq.selenium</groupId>
               <artifactId>selenium-java</artifactId>
               <version>4.8.3</version>
           </dependency>
           <dependency>
               <groupId>org.testng</groupId>
               <artifactId>testng</artifactId>
               <version>7.7.1</version>
               <scope>test</scope>
           </dependency>
       </dependencies>
    </project>

 package test;


    import java.net.*;
    import java.time.Duration;
    import java.util.HashMap;
    import java.util.Set;


    import org.openqa.selenium.remote.RemoteWebDriver;
    import org.testng.annotations.*;
    import org.openqa.selenium.By;
    import org.openqa.selenium.NoSuchWindowException;
    import org.openqa.selenium.safari.`Options;
    import org.openqa.selenium.support.ui.*;


    public class TestNoSuchWindowException {


       public RemoteWebDriver driver = null;


       String username = System.getenv("LT_USERNAME") == null ? "<lambdatest_username>" : System.getenv("LT_USERNAME");
       String accessKey = System.getenv("LT_ACCESS_KEY") == null ? "<lambdatest_accesskey>" : System.getenv("LT_ACCESS_KEY");


       @BeforeTest
       public void setup()
       {
           try {
               SafariOptions safariOptions = new SafariOptions();
               safariOptions.setPlatformName("MacOS Big sur");
               safariOptions.setBrowserVersion("14.0");

               HashMap<String, Object> ltOptions = new HashMap<String, Object>();
               ltOptions.put("build", "NoSuchWindowException in Selenium");
               ltOptions.put("name", "Handling NoSuchWindowException");
               ltOptions.put("w3c", true);
               safariOptions.setCapability("LT:Options", ltOptions);

               driver = new RemoteWebDriver(
                       new URL("https://" + username + ":" + accessKey + "@hub.lambdatest.com/wd/hub"), safariOptions);
           } catch (MalformedURLException e) {
               e.printStackTrace();
           }
            driver.get("https://www.lambdatest.com/selenium-playground/window-popup-modal-demo");
       }


       @AfterTest
       public void tearDown() {
           driver.quit();
       }


       @Test
       public void testNoSuchWindowException()
       {  
           System.out.println("Clicking on Follow button");
           driver.findElement(By.xpath("//*[@title='Follow @Lambdatesting on Twitter']")).click();

           Set<String> handles = driver.getWindowHandles();
           for(String handle : handles)
           {
               System.out.println("Valid handle value : " + handle);
               //adding -updated to valid handle value to demonstrate exception
               //due to invalid handle value
               driver.switchTo().window(handle + "-updated");
           }
       }


       @Test
       public void testNoSuchWindowException_fix()
       {  
           System.out.println("Clicking on Follow button");
           driver.findElement(By.xpath("//*[@title='Follow @Lambdatesting on Twitter']")).click();

           WebDriverWait wait = new WebDriverWait(driver, Duration.ofSeconds(15));
           wait.until(ExpectedConditions.numberOfWindowsToBe(2));
           System.out.println("Verified total windows are 2");

           System.out.println("Fetching window handles of all windows");
           Set<String> handles = driver.getWindowHandles();


           System.out.println("Switching to each window one by one to verify if it is required one");
           for(String handle : handles)
           {
               System.out.println("Switching to window with handle : " + handle);
               driver.switchTo().window(handle);
               //using window title to reach to required window
               if(driver.getTitle().equals("Profile / Twitter"))
               {
                   System.out.println("Reached required window");
                   break;
               }
           }
           driver.findElement(By.xpath("//*[@data-testid='login']")).click();
           System.out.println("Clicked Login button successfully");
       }

       @Test
       public void testNoSuchWindowException_fix_tryCatch()
       {
           System.out.println("Clicking on Follow button");
           driver.findElement(By.xpath("//*[@title='Follow @Lambdatesting on Twitter']")).click();
           try
           {
               Set<String> handles = driver.getWindowHandles();
               for(String handle : handles)
               {
                   System.out.println("Valid handle value : " + handle);
                   //adding -updated to valid handle value to get exception
                   //due to invalid handle value
                   System.out.println("Invalid handle value used : " + handle + "-updated");
                   driver.switchTo().window(handle + "-updated");
               }
           } catch (NoSuchWindowException ex) {
               System.out.println("We are inside catch block");
               System.out.println("NoSuchWindowException has been caught.");
           }
       }
    }

export LT_USERNAME=LT_USERNAME
    export LT_ACCESS_KEY=LT_ACCESS_KEY

set LT_USERNAME=LT_USERNAME
    set LT_ACCESS_KEY=LT_ACCESS_KEY