如何在Jenkins中执行Selenium 2测试

Question

• I would like to be able to use Selenium 2 with Jenkins.

• I am new to both so please excuse any of my ignorance.

• I noticed the following plugin for jenkins HERE , and installed it.

• I have a base class as follows:

   public class BaseTestClass { protected Properties myprops; protected String baseurl; protected WebDriver driver; protected boolean acceptNextAlert = true; protected StringBuffer verificationErrors = new StringBuffer(); public BaseTestClass() { try { myprops = TestUtil.readProps("src/MyProps.properties"); baseurl = myprops.getProperty("baseurl"); driver = new RemoteWebDriver(new URL("http://localhost:4444/wd/hub"), DesiredCapabilities.fireFox()); } catch(Exception e) { e.printStackTrace(); } } @Before public void setUp() throws Exception { driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS); } @After public void tearDown() throws Exception { driver.quit(); String verificationErrorString = verificationErrors.toString(); if (!"".equals(verificationErrorString)) { fail(verificationErrorString); } } protected boolean isElementPresent(By by) { try { driver.findElement(by); return true; } catch (NoSuchElementException e) { return false; } } protected String closeAlertAndGetItsText() { try { Alert alert = driver.switchTo().alert(); if (acceptNextAlert) { alert.accept(); } else { alert.dismiss(); } return alert.getText(); } finally { acceptNextAlert = true; } } 

I have the following configuration on the Selenium Plugin for Jenkins :

..

Once I try to build the project and run a Junit selenium test in Jenkins, it builds successfully, but the test it self fails. (works fine when running with ant from the command line - and changing the WebDriver to : driver = new FirefoxDriver(); ) - Using selenium RC

This is the console output in Jenkins:

EDIT : I just noticed you can Archive the Junit .xml output file after the build in Jenkins. I am getting a class not found exception? This is weird because like i said, it builds just fine when using ant from the command line.

The error is as follows:

<error message="com.loggedin.CCBreadCrumb" type="java.lang.ClassNotFoundException">
java.lang.ClassNotFoundException: com.loggedin.CCBreadCrumb at
java.net.URLClassLoader$1.run(URLClassLoader.java:366) at 
java.net.URLClassLoader$1.run(URLClassLoader.java:355) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:354) at
java.lang.ClassLoader.loadClass(ClassLoader.java:423) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at
java.lang.ClassLoader.loadClass(ClassLoader.java:356) at java.lang.Class.forName0(Native
Method) at java.lang.Class.forName(Class.java:186)
</error>

Thanks in advance for any direction or help you may have!

Answer 1

I think i was making several mistakes. To resolve the Class Not Found Exception I added the following to ant's build.xml - (remember I am new Ant)

<target name="compile" depends="init" description="compile the source " >       
    <javac srcdir="src/" destdir="bin" classpathref="SeleniumCC.classpath"/>
</target>       

This got my java classes compiling.

Then I had to update the selenium standalone server to the latest version ( selenium-server-standalone-2.xx.x.jar ) This is located in:

jenkins_home_directory\\plugins\\selenium\\WEB-INF\\lib

Last I was trying to use the wrong configuration in the selenium plug-in (I was trying to use a Custom RC node configuration, what I needed was a Custom web driver node configuration.)

ALSO NOTE : When running Selenium Server on Red Hat I had to setup and install XVFB with Jenkins Xvfb plugin.

I hope this can be of help to others in the future! Good luck!

Answer 2

Well if your intention is to simply run the selenium script without Selenium Grid. Then you do not need any plugin. You would only need remote webdriver.

To launch Selenium 2 from Jenkins the best way would be is to wrap the test process in the pom.xml (if you are using Maven) and then simply create a new job in Maven using "Build a maven2/3 project" in Jenkins.