Test Suite in TestNG

Test Suite in TestNG:-

The test suite is used to execute more than one test class using a single XML file.
Test Suite always will be defined by an XML file that contains multiple test classes using XML tag.

First Create two different Test Case Classes 

package scs;

import org.testng.annotations.Test;

import org.testng.annotations.BeforeTest;

import org.testng.annotations.AfterClass;

import org.testng.annotations.AfterSuite;

import org.testng.annotations.AfterTest;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.BeforeSuite;

public class Test1 {

@BeforeClass

public void bclass(){

System.out.println("Before Class1");

}

@AfterClass

public void aclass(){

System.out.println("After Class1");

}

@BeforeSuite

public void bsclass(){

System.out.println("Before SUIT1");

}

@AfterSuite

public void asclass(){

System.out.println("After Suit1");

}

  @Test

  public void f() {

  System.out.println("Test Class1");

  }

  @BeforeTest

  public void beforeTest() {

  System.out.println("Before Test");

  }

  @AfterTest

  public void afterTest() {

  System.out.println("After Test");

  }

}

Create another class Test2

package scs;

import org.testng.annotations.Test;

import org.testng.annotations.BeforeTest;

import org.testng.annotations.AfterTest;

public class Test2 {

  @Test

  public void f() {

  System.out.println("Test Class2");

  }

  @BeforeTest

  public void beforeTest() {

  System.out.println("Before Test CLASS2");

  }

  @AfterTest

  public void afterTest() {

  System.out.println("After Test Class2");

  }

}        

Syntax of testsuite.xml

<?xml version = "1.0" encoding = "UTF-8"?>
<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >

<suite name = "Suite1">

   <test name = "exampletest1">
      <classes>
         <class name = "Test1" />
      </classes>
   </test>
  
   <test name = "exampletest2">
      <classes>
         <class name = "Test2" />
      </classes>
   </test>

@BeforeSuite and @AfterSuite Annotation can be defined in the source code of class which will be executed before suite execution and after suite execution for a particular class.