SELENIUM: @DataProvider In TESTNG

SELENIUM: @DataProvider In TESTNG:

1.By Using @DataProvider,we can pass the multiple sets of data to the Testmethod based on our requirement (OR) Marks a method as supplying data for a test method.

2.The annotated method must return an Object[][] where each Object[] can be assigned the parameter list of the test method.

3.The @Test method that wants to receive data from this DataProvider needs to use a dataProvider name equals to the name of this annotation.

4.The name of this data provider. If it's not supplied, the name of this data provider will automatically be set to the name of the method.

5. In @dataProvider by default parallel=false.

If we write "parallel=true" then the @Test method  will run parallelly i,e this method runs parallelly  on multiple threads.

syntax:

@DataProvider(name="dataProviderName",parallel=true)

          public  Object[][]  methodName()

          {

                   Object[][] obj=new Object[rows][columns];

                   ;;;;

                   ;;;;;

                   ;;;;

                   return obj;

          }

@DataProvider is always going to return Two-Dimensional array.

In DataProvider Two dimensional arrays,'rows' indicates how many times you want to repeat the testcase and 'columns' indicates number of inputs(for how many webelements you want to pass the data).we need to pass rows and columns in the form of integer values.

DataProvider name can be anything,but it should be meaningful.

Example:

package com.rameshsoft.rameshselenium;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;

import org.openqa.selenium.WebDriver;

import org.openqa.selenium.firefox.FirefoxDriver;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.BeforeMethod;

import org.testng.annotations.BeforeTest;

import org.testng.annotations.DataProvider;

import org.testng.annotations.Test;

public class DataProviderDemo {

         

          static String uname;

          static String pwd;

                  

         

          @BeforeClass

          public void beforeClass()

          {

                   System.out.println("Before class executing");

          }

          @BeforeTest

          public void beforeTest()

          {

                   System.out.println("Before test executing");

          }

          @BeforeMethod

          public void beforeMethod()

          {

                   System.out.println("Before @test executing");

          }

         

          @Test(dataProvider="dataProvider1")

          public void execute(String username,String password) throws InterruptedException

          {

          uname=username;

          pwd=password;

                   System.out.println(uname);

                   System.out.println(pwd);

                   System.setProperty("webdriver.gecko.driver", "C:\\Users\\ramesh\\Desktop\\java\\desk\\geckodriver-v0.11.1-win64\\geckodriver.exe");

WebDriver driver=new FirefoxDriver();

driver.manage().window().maximize();

driver.manage().timeouts().implicitlyWait(50,TimeUnit.SECONDS);

driver.get("https://www.gmail.com");

driver.findElement(By.id("Email")).sendKeys(uname);

driver.findElement(By.id("next")).click();

Thread.sleep(2000);

driver.findElement(By.id("Passwd")).sendKeys(pwd);

driver.findElement(By.id("signIn")).click();

driver.quit();

}

@DataProvider(name="dataProvider1",parallel=true)

          public Object[][] values()

          {

                   Object[][] obj=new Object[2][2];

                   obj[0][0]="rameshsoft.selenium@gmail.com";

                   obj[0][1]="123456";

                   obj[1][0]="rameshatbtech@gmail.com";

                   obj[1][1]="123456899";

                  

                   return obj;

          }

}

OUTPUT:

Before test executing

Before class executing

Before @test executing

Before @test executing

rameshatbtech@gmail.com

123456899

rameshsoft.selenium@gmail.com

123456

if  parallel=false  in @DataProvider then output as follows

Before test executing

Before class executing

Before @test executing

rameshsoft.selenium@gmail.com

123456

Before @test executing

rameshatbtech@gmail.com

123456899