TestNG DataProvider Example

package com.testng.examples;

import org.testng.annotations.Test;
import org.testng.annotations.DataProvider;

public class DataProviderDemo {
  @Test(dataProvider = "dp")
  public void dataProviderDemo(Integer id, String firstName,String lastName) {
   System.out.println(id + " " + firstName + " " + lastName);
  }

  @DataProvider(name="testData1")
  public Object[][] td1() {
    Object[][] data = new Object[4][3];
    
    data[0][0] = 10;
    data[0][1] = "Ram";
    data[0][2] = "Kumar";
    
    data[1][0] = 20;
    data[1][1] = "Shyam";
    data[1][2] = "Sundar";
    
    data[2][0] = 30;
    data[2][1] = "Krishna";
    data[2][2] = "Nandan";
    
    data[3][0] = 40;
    data[3][1] = "Geeta";
    data[3][2] = "Viswas";
    
    return data;
  }
  
  @DataProvider(name="testData2")
  public Object[][] td2() {
    Object[][] data = {{10, "Ram", "Kumar"}, 
           {20, "Shyam", "Sundar"},
           {30, "Krishna", "Kumar"},
           {40, "Sangeeta","Devi"}
          };
    
    return data;
  }
  
  @DataProvider
  public Object[][] dp() {
    return new Object[][] {
      new Object[] { 1, "a","c" },
      new Object[] { 2, "b", "d"},
    };
  }
}