TestNG DataProvider in Selenium Java – Data Driven Testing with Practical Examples

By Bhau Automation • Master DataProvider in TestNG for Selenium Automation

🎯 What You Will Learn in This Video

• What is DataProvider in TestNG?
• How to use @DataProvider annotation in TestNG
• How to run Selenium tests using DataProvider
• Real-time DataProvider example in Selenium Java
• Difference between @Parameters and @DataProvider
• Interview questions on DataProvider in TestNG

💡 Pro Tip: DataProvider is best for data-driven testing when you want to execute the same test with multiple sets of data.

📌 What is DataProvider in TestNG?

DataProvider in TestNG is used to supply multiple sets of data to a single test method. It enables data-driven testing, allowing the same Selenium test to run multiple times with different input values.

🚀 Benefits of DataProvider in Selenium

• Run same test with multiple data sets
• Avoid duplicate test methods
• Support data-driven testing
• Easy integration with Excel/CSV/DB (advanced)
• Improves test coverage

💻 DataProvider Example in TestNG (Selenium Java)

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

public class LoginTest {

    @DataProvider(name = "loginData")
    public Object[][] getData() {
        return new Object[][] {
            {"admin", "admin123"},
            {"user", "user123"}
        };
    }

    @Test(dataProvider = "loginData")
    public void loginTest(String username, String password) {
        System.out.println("Username: " + username + " | Password: " + password);
        // Selenium login steps here
    }
}
  

🆚 @Parameters vs @DataProvider

• @Parameters: Static data from XML file
• @DataProvider: Dynamic and multiple data sets programmatically

📚 Prerequisites (Recommended)

• TestNG Framework & Annotations – Part 1
• TestNG Annotations Execution Flow – Part 2
• TestNG Parameterization – Part 3
• Include/Exclude in TestNG – Part 4
• TestNG Groups – Part 5

❓ Common Interview Questions

🎥 Watch the Complete Video Tutorial

👉 Watch on YouTube: TestNG DataProvider in Selenium Java

🎓 Key Takeaways

• DataProvider enables data-driven testing in TestNG
• Ideal for running Selenium tests with multiple inputs
• Reduces code duplication and improves test design
• Must-know topic for Selenium interviews

🚀 Created with ❤️ by Bhau Automation