Selenium WebDriver Examples : Data Driven testing

LoginTestDDT.java

package com.pragmatic.selenium.hrm;

import io.github.bonigarcia.wdm.WebDriverManager;
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.testng.Assert;
import org.testng.annotations.*;

import java.util.concurrent.TimeUnit;


/**
 * <b>Selenium WebDriver Examples </b>
 * <p>
 * Data driven testing example 
 */
public class LoginTest {

    private WebDriver driver;
    private static final String BASE_URL = "http://hrm.pragmatictestlabs.com";


    @BeforeClass
    public void beforeClass() {
        WebDriverManager.chromedriver().setup();
    }

    @BeforeMethod
    public void beforeMethod() {
        ChromeOptions options = new ChromeOptions();
        options.addArguments("disable-infobars");
        driver = new ChromeDriver(options);
        driver.manage().window().maximize();
        driver.navigate().to(BASE_URL);

        driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);
    }

    @AfterMethod
    public void afterMethod() {
        driver.close();
    }



    @Test(dataProvider = "invalid-login-data")
    public void testInvalidUserLoginScenarios(String username, String password, String expected ) {
        driver.findElement(By.id("txtUsername")).sendKeys(username);
        driver.findElement(By.id("txtPassword")).sendKeys(password);
        driver.findElement(By.id("btnLogin")).click();

        String msgError = driver.findElement(By.id("spanMessage")).getText();
        Assert.assertEquals(msgError, expected);
    }


    @DataProvider(name = "invalid-login-data")
    public  static  Object[][] invalidLoginData(){
        return new Object[][]{
                {"Admin", "", "Password cannot be blank"},
                {"", "", "Username cannot be blank"},
                {"", "Ptl@#321", "Username cannot be blank"},
                {"Admin", "Invalid", "Invalid credentials"},
                {"Admin", "ptl@#321", "Invalid credentials"}

        };

    }


}