Using TestNG with Selenium for Test Automation

 Test automation plays a key role in speeding up software development and ensuring reliability. Selenium is one of the most popular tools for automating web applications, and when combined with TestNG, it becomes even more powerful. TestNG (Test Next Generation) is a testing framework inspired by JUnit and NUnit, designed to simplify a wide range of testing needs.

Why Use TestNG with Selenium?

Selenium on its own is great for browser automation, but it lacks features like test case management, result reporting, and parallel execution. This is where TestNG shines. It provides:

  • Annotations to manage test methods
  • Assertions to validate outcomes
  • Test reports for tracking execution results
  • Data-driven testing with parameters and data providers
  • Parallel test execution for faster runs
  • Setting Up TestNG with Selenium
  • Install Java and an IDE: Eclipse or IntelliJ works well.
  • Add Selenium and TestNG libraries: You can add them using Maven or manually.

Install TestNG plugin (if using Eclipse): Go to Help → Eclipse Marketplace → Search for "TestNG".

Sample Test Case

Here’s a simple example using TestNG with Selenium:

java

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import org.openqa.selenium.WebDriver;

import org.openqa.selenium.chrome.ChromeDriver;

import org.testng.annotations.*;

public class GoogleSearchTest {

    WebDriver driver;

    @BeforeClass

    public void setUp() {

        driver = new ChromeDriver();

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

    }

    @Test

    public void testTitle() {

        String title = driver.getTitle();

        assert title.contains("Google");

    }

    @AfterClass

    public void tearDown() {

        driver.quit();

    }

}

Key TestNG Features in Selenium Automation

@BeforeClass / @AfterClass / @Test: These annotations help structure tests clearly.

Assertions: Used to validate test results.

XML Suite Files: Manage large test suites and run tests in groups.

Listeners: Customize behavior like logging and test results.

Benefits

Organized test flow

Easy maintenance and scalability

Clear, HTML-based reports

Support for grouping and prioritization of tests

Conclusion

Combining Selenium with TestNG provides a robust and flexible automation framework. TestNG enhances test structure, execution control, and result reporting, making it ideal for modern web application testing. Whether you’re running a few simple tests or managing a large suite, this combo can help you automate efficiently and reliably.

Learn Selenium Java Training in Hyderabad

Read More:

Handling Browser Pop-ups with Selenium and Java

Selenium Waits in Java: Implicit, Explicit, and Fluent

Performing Data-Driven Testing Using Apache POI

Automating Web Forms Using Selenium Java

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