TestNG basics

FirstTest.java

Best way to explain TestNG basic is to execute below Script. Please goahead and execute this and let me know if you need any additional clarification.

Sysout has been added to identify sequence of different methods.

testNg.java

import org.testng.annotations.Test;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.DataProvider;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeSuite;
import org.testng.annotations.AfterSuite;

public class FirstTest {
 @Test(dataProvider = "dp")
  public void f(Integer n, String s) {
   System.out.println("Inside Data Provider");
  }

 @BeforeMethod
  public void beforeMethod() {
   System.out.println("Before Method");
 }

 @AfterMethod
  public void afterMethod() {
   System.out.println("After Method");
 }

 @DataProvider
 public Object[][] dp() {
  return new Object[][] { new Object[] { 1, "a" },
  new Object[] { 2, "b" }, };
 }

 @BeforeClass
 public void beforeClass() {
  System.out.println("Before Class");
 }

 @AfterClass
 public void afterClass() {
  System.out.println("After Class");
 }

 @BeforeTest
 public void beforeTest() {
  System.out.println("Before Test");
 }

 @AfterTest
 public void afterTest() {
  System.out.println("After Test");
 }

 @BeforeSuite
 public void beforeSuite() {
  System.out.println("Before Suite");
 }

 @AfterSuite
 public void afterSuite() {
  System.out.println("After Suite");
 }
}

testng.xml

<?xml version="1.0" encoding="UTF-8"?>
<suite name="Suite" parallel="false">
<test name="Test">
<classes>
<class name="com.jbt.FirstTest"/>
</classes>
</test> <!-- Test -->
</suite> <!-- Suite -->

output

[TestNG] Running:
  C:\workspace\TestNG\TestNGWebProject\src\TestNG.xml
Before Suite
Before Test
Before Class
Before Method
Inside Data Provider
After Method
Before Method
Inside Data Provider
After Method
After Class
After Test
After Suite
===============================================
Suite
Total tests run: 2, Failures: 0, Skips: 0
===============================================