How to group test cases in TestNG? - webdriver

Question

I want to launch two browsers at a time with different parameters. I've written Test suite like below. but, it is launching 8 browsers at a time (As I've mentioned parallel='tests' it is launching browsers for all classes available in that test)
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd">
<suite thread-count="2" name="Suite" parallel="tests">
<test name="Test1" preserve-order="true">
<parameter name="propertyFileName" value="Constants.properties"/>
<classes preserve-order="true">
<class name="com.test.TestCase1"/>
<class name="com.test.TestCase2"/>
<class name="com.test.TestCase3"/>
<class name="com.test.TestCase4"/>
</classes>
</test> <!-- Test -->
<test name="Test2" preserve-order="true">
<parameter name="propertyFileName" value="Constants2.properties"/>
<classes preserve-order="true">
<class name="com.test.TestCase5"/>
<class name="com.test.TestCase6"/>
<class name="com.test.TestCase7"/>
<class name="com.test.TestCase8"/>
</classes>
</test> <!-- Test -->
</suite> <!-- Suite -->
Is there any way to launch only two browsers at a time ?
I want to group Test cases such that while running in parallel (only two test cases at a time) both should take Constants from different property file.
EDIT-I
TestCase1.java
public class TestCase1
{
private WebDriver driver;
CommonMethods comObj;
StringBuffer failureMsgs;
#Parameters({"propertyFileName"})
#BeforeTest
public void beforeTest(String pname) throws Exception
{
comObj=new CommonMethods(pname);
driver=new FirefoxDriver();
comObj.login(driver, comObj.userName,comObj.password);
}
#Test
public void f()
{
try
{
}
catch(Exception e)
{
e.printStackTrace();
}
}
#AfterTest
public void afterTest()
{
System.out.println("Inside after method");
driver.quit();
}
}

Answer 1

The problem is with your setup and tear down code. You are using #Aftertest and before test. Your browsers would only shutdown when aftertest runs which would be only twice. Either you should use #afterclass or #aftermethod and corresponding beforemethods. testng is workin correctly coz it runs all your before test methods at the start, thus launching 8 browsers first.