Selenium Grid Example - Part2

Working with demo of selenium grid -- 25-march-2011 - fixed the issues with error reported by Mitul. it was regarding a warning message which generates when we don't make 'includeantruntime' variable false in javac tab into the build.xml file

1. Open a new command terminal, if you run following command then it will execute the test in sequence:
Ant run-demo-in-sequence




2. Open a new command terminal, if you run following command then it will execute the test in sequence:
Ant Run-demo-in-parallel



Nice example of Selenium Grid with Testng

1. Create a project workspace, you need to maintain folder structure like below:
gridproject
- build
- config
- test
- build.properties file
- lib
- build.xml
See the below screen to see above workspace:



2. Create a java file with name ‘ParallelTests.java’ with following codes:

package com.example.tests;import com.thoughtworks.selenium.*;import org.testng.annotations.*;import static org.testng.Assert.*;import java.util.regex.Pattern;import static com.thoughtworks.selenium.grid.tools.ThreadSafeSeleniumSessionStorage.closeSeleniumSession;import static com.thoughtworks.selenium.grid.tools.ThreadSafeSeleniumSessionStorage.session;import static com.thoughtworks.selenium.grid.tools.ThreadSafeSeleniumSessionStorage.startSeleniumSession;import org.testng.annotations.AfterMethod;import org.testng.annotations.BeforeMethod;import org.testng.annotations.Parameters;public class Paralleltests extends SeleneseTestCase {public static final String TIMEOUT = "24000";@BeforeMethod@Parameters({"seleniumHost", "seleniumPort", "browser", "webSite"})protected void startSession(String seleniumHost, int seleniumPort, String browser, String webSite) {startSeleniumSession(seleniumHost, seleniumPort, browser, webSite);session().setTimeout(TIMEOUT);}@AfterMethodprotected void closeSession() {closeSeleniumSession();}@Test public void test1() throws Exception {session().open("/");}@Test public void test2() throws Exception {session().open("/");}@Test public void test3() throws Exception {session().open("/");}@Test public void test4() throws Exception {session().open("/");}public void waitForElementPresent(String locator, int timeout, Selenium selenium) throws Exception {for (int second = 0;; second++) {if (second >= timeout)throw new SeleniumException("Timout finding: " + locator);try {if (session().isElementPresent(locator))break;}catch (Exception ex) {}Thread.sleep(1000);}}}

See the below screen just for reference:


3. Now you need to create a configuration file, create a xml with name ‘testngp.xml’ with following codes and put the file in config folder:

<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd"><suite name="ParallelExecuteResults" parallel="methods" thread-count="10" verbose="1" annotations="JDK"><parameter name="seleniumHost" value="localhost" /><parameter name="seleniumPort" value="4444" /><parameter name="browser" value="*firefox" /><parameter name="webSite" value="http://www.google.com/" /><test name="Login Test" junit="false"><classes><class name="com.example.tests.Paralleltests"><methods><include name="test1" /><include name="test2" /><include name="test3" /><include name="test4" /></methods></class></classes></test></suite>

See the below screen just for reference:


4. You have already a build.xml file in your project’s workspace, open it and put the following code and again save it:

  <?xml version="1.0" encoding="iso-8859-1" ?> 
  <!DOCTYPE project (View Source for full doctype...)> 
- <project name="S4" default="usage" basedir=".">
- <!--  ========== Initialize Properties =================================== 
  --> 
  <property environment="env" /> 
  <property file="./build.properties" /> 
  <property name="webSite" value="http://www.google.com" /> 
  <property name="seleniumHost" value="localhost" /> 
  <property name="seleniumPort" value="4444" /> 
  <property name="browser" value="*firefox" /> 
  <property name="hubPollerIntervalInSeconds" value="30" /> 
- <target name="start-selenium-server">
  <java jar="${ws.home}/lib/selenium-server.jar" /> 
  </target>
- <target name="setClassPath" unless="test.classpath">
- <path id="classpath_jars">
  <fileset dir="${ws.home}/lib" includes="*.jar" /> 
  </path>
  <pathconvert pathsep=":" property="test.classpath" refid="classpath_jars" /> 
  </target>
- <target name="init" depends="setClassPath">
- <tstamp>
  <format property="start.time" pattern="MM/dd/yyyy hh:mm aa" /> 
  </tstamp>
- <condition property="ANT" value="${env.ANT_HOME}/bin/ant.bat" else="${env.ANT_HOME}/bin/ant">
  <os family="windows" /> 
  </condition>
  <taskdef name="testng" classpath="${test.classpath}" classname="org.testng.TestNGAntTask" /> 
  </target>
- <!--  all 
  --> 
  <target name="all" /> 
- <!--  clean 
  --> 
- <target name="clean">
  <delete dir="${test.dest}" /> 
  </target>
- <!--  compile 
  --> 
- <target name="compile" depends="init, clean">
- <delete includeemptydirs="true" quiet="true">
  <fileset dir="${test.dest}" includes="**/*" /> 
  </delete>
  <echo message="making directory..." /> 
  <mkdir dir="${test.dest}" /> 
  <echo message="classpath: ${test.classpath}" /> 
  <echo message="compiling..." /> 
  <javac debug="true" destdir="${test.dest}" includes="*.java" srcdir="${test.src}" target="1.5" classpath="${test.classpath}" includeantruntime="false" /> 
  </target>
- <!--  build 
  --> 
  <target name="build" depends="init" /> 
- <!--  run 
  --> 
- <target name="run-in-parallel" depends="compile">
- <testng classpath="${test.classpath}:${test.dest}" suitename="ParallelExecuteResults">
  <xmlfileset dir="${ws.home}/config" includes="testngp.xml" /> 
  </testng>
  </target>
- <target name="usage">
  <echo>ant run will execute the test</echo> 
  </target>
- <!--  ****************** targets not used ****************** 
  --> 
  </project>

See the below screen just for reference:

5. Now, we need to save build.properties file with following code:
ws.home=C:/gridproject (Note: if you create your workspace in C dir then, otherwise you need to give proper workspace path)
test.dest=${ws.home}/build
test.src=${ws.home}/test

6. See the below screen just for reference:


7. It’s time to put needed jar files in your library, below jar files which you need to put in lib:
a. junit.jar
b. selenium-grid-tools-1.0.6.jar
c. selenium-java-client-driver.jar
d. selenium-server.jar
e. testng-5.5-jdk15.jar
f. testng.jar
g. selenium-java-client-driver-tests.jar
h. selenium-server-0.9.1-20070223.200626-116-standalone.jar
see the below screen just for reference:


8. TESTNG: We have already placed the required jars file what are necessary in using of TESTNG into the project’s library folder as Reference, in the screen you can see testng.jar and testng-5.5-jdk15.jar files which are responsible for compilation/execution of tests written into TESTNG:



Only what you need to do is, set testng-5.5-jdk15.jar file into your system variables path, append C:\gridproject\lib\testng-5.5-jdk15.jar path into the path variable in the System variables section.

9. I am assuming here that selenium grid with all four instances are still running on system if not then please start it again.

10. Open a new command terminal,

And run ant run-in-parallel

As in below screen:



11. After executing the above command, you would see that multiple firefox instances will be launched parallel.

12. After execution of different tests, you can see the execution result; result will be shown into the “C:\gridproject\test-output” folder. You need to go into the different tests folder and by opening the index.html file you would be able to see the results. See an example:


Here is the updated embedded video file:

SeleniumGrid_Example_Part2-updated
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