1.

How can we take a screenshot in Selenium?

Answer»

While executing the test cases, the test case may fail. The way while executing the test case manually we take a SCREENSHOT and place it in RESULT repository, same way things can be done by using Selenium WebDriver.

We may need to capture SCREENSHOTS using Selenium WebDriver in scenarios -

  1. Application issues
  2. Assertion Failure
  3. Difficulty to find WebElements on the web page
  4. Timeout to find WebElements on the web page

Selenium is having an INTERFACE named TakesScreenshot to take the screenshot. This Instance has one method getScreenShotAs() will be used to take a screenshot during test execution and saves that screenshot at the desired location that we provide in the code.

Syntax to capture and save the screenshot is -

File screenshotFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);

For ex. File screenshotFile = ((TakesScreenshot)driver).getScreenshotAs(screenshot1.png);

Syntax to store it in our local drive is -

FileUtils.copyFile(screenshotFile, new File("filename_with_path")); For ex. FileUtils.copyFile(screenshotFile, new File("c:\\screenshot1.png")); package Managescreenshot; import java.io.File; import org.apache.commons.io.FileUtils; import org.openqa.selenium.OutputType; import org.openqa.selenium.TakesScreenshot; import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxDriver; import org.testng.annotations.Test; public class CaptureScreenshot {  @Test  public static void captureScreenMethod() throws Exception{  System.setProperty("webdriver.gecko.driver","c://Selenium Environment//Drivers//geckodriver.exe");  WebDriver driver = new FirefoxDriver();  driver.manage().window().MAXIMIZE();  driver.get("https://www.facebook.com/capture-screenshot-using-selenium-webdriver");  File screenshotFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);  FileUtils.copyFile(screenshotFile, new File("C:\\screenshot1.png"));  driver.close();  driver.quit();  } }

When the script fails, to know where was the error in script capture a screenshot of the web page when the test case fails. By seeing screenshot, We can easily identify where exactly the script is failed.

To take a screenshot of the failed test, we will place the entire code in try-catch block by placing the test steps in a try block and then screen capture statement in the catch block. In try block, if a test step fails then it goes to the catch block and captures a screenshot of the web page.

package software testing material;

import java.io.File; import org.apache.commons.io.FileUtils; import org.openqa.selenium.OutputType; import org.openqa.selenium.TakesScreenshot; import org.openqa.selenium.WebDriver; import org.openqa.selenium.firefox.FirefoxDriver; import org.testng.annotations.Test; public class CaptureFailScreenshot {  public static void captureFailScreenMethod() throws Exception{             System.setProperty("webdriver.gecko.driver","C://Selenium Environment//Drivers//geckodriver.exe");  WebDriver driver = new FirefoxDriver();  driver.manage().window().maximize();       try{           driver.get("https://www.facebook.com");   driver.navigate().refresh(); driver.findElement(By.id("emaile")).sendKeys("testmail@gmail.com"); //Statement with incorrect id              }catch(Exception e){           File screenshotFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);       FileUtils.copyFile(screenshotFile, new File("C:\\incorrectuser.png"));  }      driver.close();  driver.quit();  } }


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