HtmlUnitDriver est incapable de localiser un nœud

Question

Je n'arrive pas à obtenir HtmlUnitDriver pour trouver des éléments sur une page à laquelle j'essaie d'accéder. WebDriver d'autre part fonctionne bien. Les deux utilisent la même méthode. Voici mon code:

import java.util.logging.*; 
import org.openqa.selenium.By; 
import org.openqa.selenium.WebDriver; 
import org.openqa.selenium.WebElement; 
import org.openqa.selenium.firefox.FirefoxDriver; 
import org.openqa.selenium.htmlunit.HtmlUnitDriver; 
import com.gargoylesoftware.htmlunit.BrowserVersion; 


public class Main { 


    public static void main(String[]args) 
    { 
     FirefoxDriver driver2=new FirefoxDriver(); 

     HtmlUnitDriver driver=new HtmlUnitDriver(BrowserVersion.FIREFOX_10); 
     driver.setJavascriptEnabled(true); 
     Logger.getLogger("com.gargoylesoftware").setLevel(Level.OFF); 

     runTest(driver2); //works 
     runTest(driver); //does not work 
    } 

    public static void runTest(WebDriver driver) 
    { 
     driver.get("http://10.3.1.164"); 
     WebElement elem=driver.findElement(By.xpath("//td[2]/input")); 
     assert elem.isDisplayed(); 
     System.out.println(driver.getTitle()); 
    } 
} 

Voici le stacktrace:

Exception in thread "main" org.openqa.selenium.NoSuchElementException: Unable to  locate a node using //td[2]/input 
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html 
Build info: version: '2.28.0', revision: '18309', time: '2012-12-11 20:21:45' 
System info: os.name: 'Windows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.7.0_10' 
Driver info: driver.version: HtmlUnitDriver 
at  org.openqa.selenium.htmlunit.HtmlUnitDriver.findElementByXPath(HtmlUnitDriver.java:805) 
at org.openqa.selenium.By$ByXPath.findElement(By.java:344) 
at org.openqa.selenium.htmlunit.HtmlUnitDriver$5.call(HtmlUnitDriver.java:1247) 
at org.openqa.selenium.htmlunit.HtmlUnitDriver$5.call(HtmlUnitDriver.java:1) 
at org.openqa.selenium.htmlunit.HtmlUnitDriver.implicitlyWaitFor(HtmlUnitDriver.java:987) 
at org.openqa.selenium.htmlunit.HtmlUnitDriver.findElement(HtmlUnitDriver.java:1244) 
at org.openqa.selenium.htmlunit.HtmlUnitDriver.findElement(HtmlUnitDriver.java:393) 
at Main.runTest(Main.java:28) 
at Main.main(Main.java:22) 

Answer 1

I figured it out. C'était juste une question de moi d'attendre que les éléments soient chargés. Voici le code.

import java.io.IOException; 
import java.net.MalformedURLException; 
import java.util.logging.*; 
import org.openqa.selenium.By; 
import org.openqa.selenium.WebDriver; 
import org.openqa.selenium.WebElement; 
import org.openqa.selenium.firefox.FirefoxDriver; 
import org.openqa.selenium.htmlunit.*; 
import org.openqa.selenium.support.ui.ExpectedConditions; 
import org.openqa.selenium.support.ui.WebDriverWait; 
import com.gargoylesoftware.htmlunit.BrowserVersion; 
import com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException; 

public class Main { 


public static void main(String[]args) throws FailingHttpStatusCodeException, MalformedURLException, IOException 
{ 
    FirefoxDriver driver2=new FirefoxDriver(); 

    HtmlUnitDriver driver=new HtmlUnitDriver(BrowserVersion.FIREFOX_3_6); 

    driver.setJavascriptEnabled(true); 
    Logger.getLogger("com.gargoylesoftware").setLevel(Level.OFF); 

    runTest(driver2); //works 
    runTest(driver); //does not work 
} 

public static void runTest(WebDriver driver) 
{ 
    driver.get("http://10.3.1.164"); 
    WebElement elem=(new WebDriverWait(driver, 10)) //added this line 
    .until(ExpectedConditions.presenceOfElementLocated(By.xpath("//td[2]/input"))); 
    System.out.println(elem.getAttribute("id")); 
    assert elem.isDisplayed(); 
    System.out.println(driver.getTitle()); 
} 
} 

Answer 2

Vous avez juste besoin de prendre en charge timeOut. Je viens de rencontrer un simple test HTMLUnitDriver pour les Lates d'aujourd'hui availabel sélénium-server-standalone.jar qui est 3.8.1

Voici mon code java:

import java.util.concurrent.TimeUnit; 

import org.openqa.selenium.By;  
import org.openqa.selenium.WebDriver; 
import org.openqa.selenium.WebElement; 
import org.openqa.selenium.htmlunit.HtmlUnitDriver;  
public class HD_HTMLUnitTest {    
     public static void main(String[] args) throws InterruptedException { 
        // Creating a new instance of the HTML unit driver 
      //System.getProperties().put("http.proxyHost", "www-proxy.us.oracle.com"); 
      //System.getProperties().put("http.proxyPort", "80"); 

      HtmlUnitDriver unitDriver = new HtmlUnitDriver(); 
      //unitDriver.setJavascriptEnabled(true); 

      unitDriver.manage().timeouts().implicitlyWait(15, TimeUnit.SECONDS); 
      unitDriver.get("https://www.google.co.in"); 
      System.out.println("Title of the page is -> " + unitDriver.getTitle()); 

      unitDriver.findElement(By.name("q")).sendKeys("HTMLUnit through Selenium"); 
      //searchBox.sendKeys("Selenium"); 
      WebElement button = unitDriver.findElement(By.name("btnK")); 
      button.click(); 
      System.out.println("Title of the page is -> " + unitDriver.getTitle());  

      unitDriver.quit(); 
     }  
}