Selenium - Captura de tela

Esta funcionalidade ajuda a capturar imagens em tempo de execução quando necessário, principalmente quando ocorre uma falha. Com a ajuda de capturas de tela e mensagens de log, poderemos analisar melhor os resultados.

As capturas de tela são configuradas de maneira diferente para execuções locais e execuções Selenium Grid (remotas). Vamos dar uma olhada em cada um deles com um exemplo.

Execução localhost

No exemplo a seguir, faremos uma captura de tela após calcular a porcentagem. Certifique-se de fornecer um caminho válido para salvar a captura de tela.

import java.io.File;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

import org.apache.commons.io.FileUtils;
import org.openqa.selenium.*;
import org.openqa.selenium.firefox.FirefoxDriver;

public class WebdriverDemo {
   public static void main(String[] args) throws IOException {
      
      WebDriver driver = new FirefoxDriver();
      
      // Puts an Implicit wait, Will wait for 10 seconds before throwing exception
      driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
      
      // Launch website
      driver.navigate().to("http://www.calculator.net/");
      
      // Maximize the browser
      driver.manage().window().maximize();
      
      // Click on Math Calculators
      driver.findElement(By.xpath(".//*[@id = 'menu']/div[3]/a")).click();
      
      // Click on Percent Calculators
      driver.findElement(By.xpath(".//*[@id = 'menu']/div[4]/div[3]/a")).click();
      
      // Enter value 10 in the first number of the percent Calculator
      driver.findElement(By.id("cpar1")).sendKeys("10");
      
      // Enter value 50 in the second number of the percent Calculator
      driver.findElement(By.id("cpar2")).sendKeys("50");
      
      // Click Calculate Button 
      driver.findElement(By.xpath(".//*[@id = 'content']/table/tbody/tr/td[2]/input")).click();
      
      // Get the Result Text based on its xpath
      String result =
         driver.findElement(By.xpath(".//*[@id = 'content']/p[2]/span/font/b")).getText();
      
      File screenshot = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
      
      FileUtils.copyFile(screenshot, new File("D:\\screenshots\\screenshots1.jpg"));
      
      // Print a Log In message to the screen
      System.out.println(" The Result is " + result);
      
      //Close the Browser.
      driver.close();
   }
}

Resultado

Ao executar o script, a captura de tela é salva na pasta 'D: \ screenshots' com o nome 'screenshots1.jpg' conforme mostrado abaixo.

Captura de tela da grade do selênio

Ao trabalhar com Selenium Grids, devemos garantir que estamos tirando as capturas de tela corretamente do sistema remoto. Usaremos driver aumentado.

Exemplo

Vamos executar o script em um nó do Firefox conectado a um hub. Para obter mais informações sobre a configuração de hub e nós, consulte o capítulo Selenium Grids .

package TestNG;

import org.openqa.selenium.remote.Augmenter;
import org.openqa.selenium.remote.DesiredCapabilities;
import org.openqa.selenium.TakesScreenshot;
import org.openqa.selenium.*;

import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.Parameters;
import org.testng.annotations.Test;

import org.apache.commons.io.FileUtils;
import org.openqa.selenium.remote.RemoteWebDriver;

import java.util.concurrent.TimeUnit;
import java.io.File;
import java.net.URL;
import java.net.MalformedURLException;
import java.io.IOException;

public class TestNGClass {
   public WebDriver driver;
   public String URL, Node;
   protected ThreadLocal<RemoteWebDriver> threadDriver = null;
   
   @Parameters("browser")
   @BeforeTest
   public void launchapp(String browser) throws MalformedURLException {
      String URL = "http://www.calculator.net";
      
      if (browser.equalsIgnoreCase("firefox")) {
         System.out.println(" Executing on FireFox");
         String Node = "http://10.112.66.52:5555/wd/hub";
         DesiredCapabilities cap = DesiredCapabilities.firefox();
         cap.setBrowserName("firefox");
         driver = new RemoteWebDriver(new URL(Node), cap);
         
         // Puts an Implicit wait, Will wait for 10 seconds
         // before throwing exception
         driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
         
         // Launch website
         driver.navigate().to(URL);
         driver.manage().window().maximize();
      } else {
         throw new IllegalArgumentException("The Browser Type is Undefined");
      }
   }
   
   @Test
   public void calculatepercent() throws IOException {
      // Click on Math Calculators
      driver.findElement(By.xpath(".//*[@id = 'menu']/div[3]/a")).click();
      
      // Click on Percent Calculators
      driver.findElement(By.xpath(".//*[@id = 'menu']/div[4]/div[3]/a")).click();
      
      // Make use of augmented Driver to capture Screenshots.
      WebDriver augmentedDriver = new Augmenter().augment(driver);
      File screenshot = ((TakesScreenshot)augmentedDriver).getScreenshotAs(OutputType.FILE);
      FileUtils.copyFile(screenshot, new File("D:\\screenshots\\remotescreenshot1.jpg"));

      // Screenshot would be saved on the system where the script is executed and NOT on remote machine.
      
      // Enter value 10 in the first number of the percent Calculator
      driver.findElement(By.id("cpar1")).sendKeys("10");
      
      // Enter value 50 in the second number of the percent Calculator
      driver.findElement(By.id("cpar2")).sendKeys("50");
      
      // Click Calculate Button
      driver.findElement(By.xpath(".//*[@id = 'content']/table/tbody/tr/td[2]/input")).click();
      
      // Get the Result Text based on its xpath
      String result = driver.findElement(By.xpath(".//*[@id = 'content']/p[2]/span/font/b")).getText();

      // Print a Log In message to the screen
      System.out.println(" The Result is " + result);
      
      
      if(result.equals("5")) {
         System.out.println(" The Result is Pass");
      } else {
         System.out.println(" The Result is Fail");
      }
   }
   
   @AfterTest
   public void closeBrowser() {
      driver.quit();
   }
}

Resultado

Ao executar o script, a captura de tela é capturada e salva no local especificado, conforme mostrado abaixo.