How to use NullContext class of org.openqa.selenium.remote.tracing.empty package

This should do the trick:

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

just do it:

public class stacktest  {


@Test
public void teststackquestion() {

    boolean actual = true;
    boolean expected = false;
   Assert.assertEquals(actual, expected);

}


@AfterMethod
public void afterMethod(ITestResult result)
{
    try
 {
    if(result.getStatus() == ITestResult.SUCCESS)
    {

        //Do something here
        System.out.println("passed **********");
    }

    else if(result.getStatus() == ITestResult.FAILURE)
    {
         //Do something here
        System.out.println("Failed ***********");

    }

     else if(result.getStatus() == ITestResult.SKIP ){

        System.out.println("Skiped***********");

    }
}
   catch(Exception e)
   {
     e.printStackTrace();
   }

}

}

To run Chrome Browser in Headless Mode in Unix Systems, add the arguments --disable-gpu and --remote-debugging-port=9222 :

System.setProperty("webdriver.chrome.driver", "C:\\path\\to\\chromedriver.exe");
ChromeOptions options = new ChromeOptions();
options.addArguments("--headless");
options.addArguments("--no-sandbox");
options.setAcceptInsecureCerts(true);
options.addArguments("--ignore-ssl-errors=true");
options.addArguments("--ssl-protocol=any");
options.setHeadless(true);
options.addArguments("--remote-debugging-port=9222");
options.addArguments("window-size=1400,600");
WebDriver driver = new ChromeDriver(options);
System.out.println("Timeout invoke ");
driver.get("https://www.google.co.in/");
driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
System.out.println("After invoke ");
System.out.println("PAGE SOURCE : \n" + driver.getPageSource());
System.out.println("RUN COMPLETE..");

Note A: Avoid passing both the options addArguments("--headless") and setHeadless(true) together for any single WebDriver instance.

Note B: Avoid using addArguments("--disable-gpu"); on Linux/Unix based systems as it is a configuration for Windows based OS.

Reference : Getting Started with Headless Chrome

Update

As you are seeing :

WebDriverException: chrome not reachable

Follow the steps :

• Uninstall Chrome Browser through Revo Uninstaller
• Run CCleaner tool to wipe off all the OS chores.
• Take a System Restart
• Install current version of Chrome Browser.
• Execute your Test

Chromium Browser have different version as follows:

• Chrome Canary
• Chrome from Dev Channel
• Raw build of Chromium for Windows x64

Not sure which Chromium Browser version you are trying to use.

However to use Chrome Canary version you can use the ChromeOptions and setBinary() method to set the absolute path of the Chrome Canary binary and you can use the following solution:

• Code Block:

  import org.openqa.selenium.WebDriver;
  import org.openqa.selenium.chrome.ChromeDriver;
  import org.openqa.selenium.chrome.ChromeOptions;
  
  public class A_Chrome_Canary {
  
      public static void main(String[] args) {
  
          System.setProperty("webdriver.chrome.driver", "C:\\Utility\\BrowserDrivers\\chromedriver.exe");
          ChromeOptions opt = new ChromeOptions();
          opt.setBinary("C:\\Users\\AtechM_03\\AppData\\Local\\Google\\Chrome SxS\\Application\\chrome.exe");
          WebDriver driver = new ChromeDriver(opt);
          driver.get("https://www.google.com/");
          System.out.println(driver.getTitle());
      }
  }
  

• Console Output:

  Google
  

• Browser Snapshot:

Update

Not clear from your comments but you need to download the latest Chromium binary from either of the official repositories:

• The Chromium Projects
• chromium.appspot
• Chrome Canary - Nightly build for developers

We're actually using Xvfb and Selenium in production with a dozen Firefox instances that work continuously. We use xvfb-run java -jar xxx.jar which select a free display to run all the firefox instances for this program. If screenshot is your concern, you can use only one display and still have a dozen Firefox taking screenshots for different websites at the same time

We wrapped this under a shell script, and that's transparent.

If you really want each selenium server to have its very display, you can overwrite it in the browser string specified in configuration. just make a shell script that do xvfb-run /usr/bin/firefox and pass this script to your config. That should do the trick

Have a good testing

For Chromedriver try out with:

String downloadFilepath = "/path/to/download";
HashMap<String, Object> chromePrefs = new HashMap<String, Object>();
chromePrefs.put("profile.default_content_settings.popups", 0);
chromePrefs.put("download.default_directory", downloadFilepath);
ChromeOptions options = new ChromeOptions();
options.setExperimentalOption("prefs", chromePrefs);
DesiredCapabilities cap = DesiredCapabilities.chrome();
cap.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
cap.setCapability(ChromeOptions.CAPABILITY, options);
WebDriver driver = new ChromeDriver(cap);

Note:- Use File.separator to handle slashes, it will put syntax as per os it is executing the code. In windows you need to use \\ for path while if you are using linux or mac then use //

Hope this helps. :)

Reason 1:

Waiting for the element to be loaded. Use

WebDriverWait wait = new WebDriverWait(driver, 4000);
wait.until(ExpectedConditions.visibilityOfElementLocated((By.id("id"))));

Reason 2:

Check to see if <input id="id" class="p-field span12" type="text"> is in any frame.

If yes use

driver.switchTo.frame("frameName"); 

before using

driver.findElement(By.id("id")).sendKeys("input key");

You can't do this with a CSS selector, because CSS selectors don't have a fine-grained enough approach to express "the text node contained in the DIV but not its other contents". You can do that with an XPath locator, though:

driver.findElement(By.xpath("//div[@id='recipient_div_3']/text()")).getText()

That XPath expression will identify just the single text node that is a direct child of the DIV, rather than all the text contained within it and its child nodes.

You have to give your chromeDriver.exe file path instead of taking the path from the URL.

example:

 System.setProperty("webdriver.chrome.driver",
            "C:\\Downloads\\chromedriver.exe");