TestNG Parametrized Test using @DataProvider in selenium

Introduction

One of the bright features of TestNG is that to allow pass parameter to test. It can be achieve in two ways...

1. Using @DataProvider annotation and
2. with testng.xml

Here is a demonstration how to parametrized test using @DataProvider annotation.

The Data Provider method returns an array of Objects (Objects [][]) where the first dimension's size is the number of times the test method will be invoked and the second dimension size contains an array of objects that must be compatible with the parameter types of the test method.

For Example


		
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.testng.Assert;
import org.testng.annotations.AfterTest;
import org.testng.annotations.BeforeTest;
import org.testng.annotations.DataProvider;
import org.testng.annotations.Test;

public class TestNGparameter {

 WebDriver driver;
 
 @BeforeTest
 public void atBefore() throws Exception{
  driver = new FirefoxDriver();
  driver.manage().window().maximize();
 }
 
 @Test(dataProvider = "testData")          //Calling Data Provider
 public void atTest(String url, String userID_locator, String userID, String passwd_locator, String passwd, String signIN_locator) throws Exception{
  
  String expected_PageTitle = "Inbox";   //Expected Result
  
  driver.get(url);
  Thread.sleep(1000);
  System.out.println(driver.getTitle());   
  
  driver.findElement(By.id(userID_locator)).sendKeys(userID);
  driver.findElement(By.id(passwd_locator)).sendKeys(passwd);
  driver.findElement(By.id(signIN_locator)).click();
  Thread.sleep(1000);
  
  String actual_PageTitle = driver.getTitle();  //Actual Result
  
  Assert.assertEquals(actual_PageTitle, expected_PageTitle);  //Compare actual with expected result
  
 }
 
 @DataProvider(name = "testData")         //Declare Data Provider
 public Object[][] methodDataProvider() throws Exception{
  
  Object [][]xData = new Object[1][6];
  
  xData[0][0] = "http://www.gmail.com";     //url
  xData[0][1] = "Email";                            // userID_locator 
  xData[0][2] = "Gmail_User";                    // userID 
  xData[0][3] = "Passwd";                          // passwd_locator
  xData[0][4] = "Password";                       // passwd
  xData[0][5] = "signIn";                           //signIN_locator
     
  return xData;
 }
 
 @AfterTest
 public void atAfter() throws Exception{
  
  driver.quit();
 }
}