Wednesday, 17 January 2018

How to Capture Screenshot when test failes with Selenium Webdriver

As we know it is very important to know the reason behind test failure we need to capture screenshot when test case fails. The reasons behind test failure can be a bug in application or error in our automation scripts so to know the exact problem it is very important to capture screenshot on test case failure.

I have already wrote a post on how to take screenshot you can refer that Post HERE. In this post we will see how to capture screenshot in case of test case failure.

1. ITestResult Interface  - this will provide us the test case execution status and test case name.
2. @AfterMethod - An annotation of TestNG which will execute after every test execution irrespective of  test case pass or fail @AfterMethod will always execute.

Lets take look complete code -

package captureScreenshot;
// Import all classes and interface
import library.Utility;
import org.openqa.selenium.By;
import org.openqa.selenium.OutputType;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.ITestResult;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.Test;
public class FacebookScreenshotExample {
// Create Webdriver reference
WebDriver driver; 
System.setProperty("", "C:\\Users\\Anuja.AnujaPC\\Downloads\\chromedriver_win32\\chromedriver.exe");
 driver=new ChromeDriver(); 

public void captureScreenshot() throws Exception
// Initiate Chrome browser

// Maximize the browser
// Pass application url
// Here we are forcefully passing wrong id so that it will fail our testcase
driver.findElement(By.xpath(".//*[@id='emailasdasdas']")).sendKeys("QA Automated");
// It will execute after every test execution 
public void tearDown(ITestResult result)
// Here will compare if test is failing then only it will enter into if condition
// Create refernce of TakesScreenshot
TakesScreenshot ts=(TakesScreenshot)driver;
// Call method to capture screenshot
File source=ts.getScreenshotAs(OutputType.FILE);
// Copy files to specific location here it will save all screenshot in our project home directory and
// result.getName() will return name of test case so that screenshot name will be same
FileUtils.copyFile(source, new File("./ScreenShots/"+result.getName()+".png"));
System.out.println("Screenshot taken");
catch (Exception e)
System.out.println("Exception while taking screenshot "+e.getMessage());
// close application

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