package hello;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.ie.InternetExplorerDriver;
import org.testng.annotations.Parameters;
import org.testng.annotations.Test;

public class ParallelExecution {
@Test
@Parameters(“browserType”)  // use @Parameters to pass the input through xml
public void dummyTest(String browserType){
WebDriver driver;
if(browserType.equals(“FF”)){
driver= new FirefoxDriver();
driver.quit();
}else if(browserType.equals(“IE”)){
System.setProperty(“webdriver.ie.driver”, “./Drivers/IEDriverServer.exe”);
driver = new InternetExplorerDriver();
driver.quit();
}
}
}

testng.xml

<suite name=”Suite” parallel=”tests” thread-count=”2″> //here parallel=”tests” means run both the test in parallel and thread-count=”2″ means run two test cases parallel.
<test name=”Test1″>
<parameter name=”browserType” value=”FF” />  //to pass the input to the java class
<classes>
<class name=”hello.ParallelExecution”/>   //here hello is package name and ParallelExecution is class name
</classes>
</test>
<test name=”Test2″>
<parameter name=”browserType” value=”IE” />
<classes>
<class name=”hello.ParallelExecution”/> //here hello is package name and ParallelExecution is class name
</classes>
</test>
</suite> 

 

Source: http://selenium-makeiteasy.blogspot.com