Selenium Tricks and TIps

In Selenium some time IE mouse action will not work properly . Use Below code
******************************************************************* 

 d:- Desiredcapabilities
d.setCapability(
   InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS, true);
  d.setCapability("nativeEvents", false);
**************************************************************************

case "ie_driver":           

    //IE CODE
    DesiredCapabilities cap = new DesiredCapabilities();
    cap.setCapability(InternetExplorerDriver.INTRODUCE_FLAKINESS_BY_IGNORING_SECURITY_DOMAINS, true);
    cap.setCapability(InternetExplorerDriver.INITIAL_BROWSER_URL, "https://testvmm6.partnersonline.com/vmm");
    cap.internetExplorer().setCapability("ignoreProtectedModeSettings", true);

    System.setProperty("webdriver.ie.driver", System.getProperty("user.dir")+"//exe//IEDriverServer1.exe");
    cap.setCapability("IE.binary", "C:/Program Files (x86)/Internet Explorer/iexplore.exe");
    cap.setCapability(CapabilityType.ACCEPT_SSL_CERTS, true);
    cap.setJavascriptEnabled(true);
    cap.setCapability("requireWindowFocus", true);
    cap.setCapability("enablePersistentHover", false);

How take Element ScreenShoot ?

Ex: If Login is Fail it will capture error message only instead of complete .   

import java.awt.image.BufferedImage;
import java.io.File;

import javax.imageio.ImageIO;

import org.apache.commons.io.FileUtils;
import org.openqa.selenium.By;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.annotations.Test;

public class screenshot {

@Test

public  void cropScreenShot() throws Exception
{

FirefoxDriver fd=new FirefoxDriver();

fd.get("http://www.yahoomail.com");

fd.findElement(By.id("login-username")).sendKeys("Dollar");
fd.findElement(By.id("login-passwd")).sendKeys("sdasad");
fd.findElement(By.id("login-signin")).click();

Thread.sleep(2000);

WebElement we=fd.findElement(By.id("mbr-login-error"));

File v=fd.getScreenshotAs(OutputType.FILE);
BufferedImage bi=ImageIO.read(v);
org.openqa.selenium.Point p=we.getLocation();
int n=we.getSize().getWidth();
int m=we.getSize().getHeight();
BufferedImage d=bi.getSubimage(p.getX(), p.getY(), n, m);
ImageIO.write(d, "png", v);

FileUtils.copyFile(v, new File ("D:\\yahooError.jpg"));

}
}