graphene and screenshots on remote browsers

[kgoedert]

Hi,

When I run my tests on my local machine using my local browser, I can take screenshots using this:

WebDriver driver = new FirefoxDriver();
driver.get("http://www.google.com/");
File scrFile = ((TakesScreenshot)driver).getScreenshotAs(OutputType.FILE);
FileUtils.copyFile(scrFile, new File("c:\\tmp\\screenshot.png"));

and it works. Now, when I try to run the same tests on a selenium hub I get this error:

java.lang.ClassCastException: org.openqa.selenium.remote.RemoteWebDriver$$EnhancerByGraphene$$afa97690 cannot be cast to org.openqa.selenium.TakesScreenshot

I found this post http://rkchunduri.blogspot.com.br/2011/11/remotewebdriver-cannot-be-cast-to.html but with the solution presented here, if I run the tests locally I get this error

java.lang.NullPointerException
at java.util.logging.Logger.log(Logger.java:644)
at org.openqa.selenium.remote.RemoteWebDriver.log(RemoteWebDriver.java:607)
at org.openqa.selenium.chrome.ChromeDriver$$EnhancerByGraphene$$afebd4da.log()
 at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:541)
 at org.openqa.selenium.chrome.ChromeDriver$$EnhancerByGraphene$$afebd4da.execute()
 at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:569)
 at org.openqa.selenium.chrome.ChromeDriver$$EnhancerByGraphene$$afebd4da.execute()
 at org.openqa.selenium.chrome.ChromeDriver.getScreenshotAs(ChromeDriver.java:173)
 at org.openqa.selenium.chrome.ChromeDriver$$EnhancerByGraphene$$afebd4da.getScreenshotAs()

And when I run them in the selenium hub I get

Class org.jboss.arquillian.graphene.proxy.GrapheneProxyHandler can not access a member of class org.openqa.selenium.remote.RemoteWebDriver with modifiers "protected"
at org.jboss.arquillian.graphene.proxy.GrapheneProxyHandler.invokeReal(GrapheneProxyHandler.java:135)
at org.jboss.arquillian.graphene.proxy.GrapheneContextualHandler$1.invoke(GrapheneContextualHandler.java:159)
at org.jboss.arquillian.graphene.enricher.StaleElementInterceptor$1.apply(StaleElementInterceptor.java:48)
at org.jboss.arquillian.graphene.enricher.StaleElementInterceptor$1.apply(StaleElementInterceptor.java:44)
at org.openqa.selenium.support.ui.FluentWait$1.apply(FluentWait.java:177)
at org.openqa.selenium.support.ui.FluentWait$1.apply(FluentWait.java:175)
at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:208)
at org.openqa.selenium.support.ui.FluentWait.until(FluentWait.java:175)
at org.jboss.arquillian.graphene.wait.WebDriverWaitImpl.until(WebDriverWaitImpl.java:87)
at org.jboss.arquillian.graphene.enricher.StaleElementInterceptor.intercept(StaleElementInterceptor.java:44)
at org.jboss.arquillian.graphene.proxy.InvocationContextImpl.invoke(InvocationContextImpl.java:87)
at org.jboss.arquillian.graphene.enricher.SearchContextInterceptor.intercept(SearchContextInterceptor.java:50)
at org.jboss.arquillian.graphene.proxy.InvocationContextImpl.invoke(InvocationContextImpl.java:87)
at org.jboss.arquillian.graphene.proxy.GrapheneContextualHandler$2.call(GrapheneContextualHandler.java:209)
at org.jboss.arquillian.graphene.context.BrowserActions.performAction(BrowserActions.java:62)
at org.jboss.arquillian.graphene.proxy.GrapheneContextualHandler.invoke(GrapheneContextualHandler.java:205)
at org.jboss.arquillian.graphene.proxy.GrapheneContextualHandler.intercept(GrapheneContextualHandler.java:229)
at org.openqa.selenium.remote.RemoteWebDriver$$EnhancerByGraphene$$ede7958d.execute(<generated>)
at org.openqa.selenium.remote.RemoteExecuteMethod.execute(RemoteExecuteMethod.java:32)
at org.openqa.selenium.remote.AddTakesScreenshot$1.invoke(AddTakesScreenshot.java:36)
at org.openqa.selenium.remote.Augmenter$CompoundHandler.intercept(Augmenter.java:286)
at org.openqa.selenium.remote.RemoteWebDriver$$EnhancerByGraphene$$ede7958d$$EnhancerByCGLIB$$9380a5cc.getScreenshotAs(<generated>)

Can anybody help with this?

[kpiwko]

Hi Kelly,

that's interesting because Drone is auto Augmenting all remote browsers. Can you sharer arquillian.xml, test class and version of Drone/Graphene or pom.xml file?

Thanks,

Karel

[kgoedert]

Pom...

Graphene version - 2.0.0.Final

Drone version - 1.2.0.Final

I am using cucumber for testing and this is the method that takes the screenshot

@Quando("^tira um screenshot chamado (.*)$")
  public void takeScreenshot(String filename){
  Capabilities caps = ((RemoteWebDriver) browser).getCapabilities();
  String browserName = caps.getBrowserName();
  String browserVersion = caps.getVersion();

  WebDriver augmentedDriver = new Augmenter().augment(browser);

  File scrFile = ((TakesScreenshot)augmentedDriver).getScreenshotAs(OutputType.FILE);
  String outputName = null;
  if(browserName.contains("internet"))
  outputName = "target/shots/" + browserName + "/" + browserVersion + "/" + filename;
  else
  outputName = "target/shots/" + browserName + "/" + filename;


  File outputFile = new File(outputName);
  if(outputFile.exists())
  fail("Já existe um arquivo com o nome " + filename);
  else{
  try {
  FileUtils.copyFile(scrFile, new File(outputName));
  } catch (IOException e) {
  fail();
  e.printStackTrace();
  }
  }
  }

If I change the augmented driver to the regular one, it works locally, but not on remote browsers.

The arquillian.xml is as follows

<arquillian xmlns="http://jboss.org/schema/arquillian" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jboss.org/schema/arquillian http://jboss.org/schema/arquillian/arquillian_1_0.xsd">

  <defaultProtocol type="Servlet 3.0"/>

  <container qualifier="JBOSS_AS_REMOTE_7.X" default="true">
  <configuration>
  <property name="managementPort">9999</property>
  </configuration>
  </container>
  <extension qualifier="webdriver">
  <property name="browser">chrome</property>
  <property name="chromeDriverBinary">/home/kelly/Downloads/chromedriver</property> 
  <property name="firefox_binary">/home/kelly/install/firefox-23/firefox/firefox</property>
  <property name="remoteAddress">http://10.1.1.247:4444/wd/hub</property>
  <property name="remote">false</property>
  <property name="version"></property>
  <property name="dimensions">1024x768</property> 
  </extension>

  <extension qualifier="cucumber">
  <property name="report">true</property>
  <property name="report-directory">target/cucumber-report</property>
  </extension>

  <engine>
  <property name="deploymentExportPath">target</property>
  </engine>


  <testResources>
  <testResource>
  <directory>src/test/resources</directory>
  </testResource>
  <testResource>
  <directory>src/main/webapp</directory>
  </testResource>
  </testResources>
</arquillian>

[kwintesencja]

Hi there, i also have this issue: TakesScreenshot RemoteWebDriver

my exception is a bit different but im not using Augmenter: Caused by: java.lang.NoSuchMethodException: org.openqa.selenium.remote.RemoteWebDriver.getScreenshotAs(org.openqa.selenium.OutputType)

[jhuska]

I have replied you in TakesScreenshot RemoteWebDriver.