How To Use TestNG Assertions in Selenium | Soft & Hard Assertions

By Bhau Automation • Learn Hard and Soft Assertions in Selenium Java with practical code examples.

🎯 What You Will Learn

• What are Assertions in TestNG
• Difference between Hard and Soft Assertions
• When to use assertEquals, assertTrue, and assertFalse
• How to implement SoftAssert class
• Practical Selenium example with TestNG Assertions

💡 Pro Tip: Assertions are the heart of test validation in Selenium. Use them to verify expected outcomes effectively.

📘 What Are TestNG Assertions?

Assertions in TestNG are used to validate the actual result against the expected result. They help in determining whether a test has passed or failed.

TestNG provides two main types of assertions: Hard Assertions and Soft Assertions.

🔹 Hard Assertion

Definition: Stops test execution immediately when an assertion fails.

• Execution stops at the failed assertion.
• Throws an AssertionError right away.

import org.testng.Assert;
import org.testng.annotations.Test;

public class HardAssertionExample {
    @Test
    public void verifyTitle() {
        String actualTitle = "Bhau Automation";
        String expectedTitle = "Bhau Automation";
        
        Assert.assertEquals(actualTitle, expectedTitle);
        System.out.println("This line will execute only if assertion passes");
    }
}
  

Syntax:

Assert.assertEquals(actual, expected);
  

🔹 Soft Assertion

Definition: Allows the test to continue even after assertion failures.

At the end of the test, softAssert.assertAll() is used to collect all assertion results.

import org.testng.annotations.Test;
import org.testng.asserts.SoftAssert;

public class SoftAssertionExample {
    @Test
    public void verifyLogin() {
        SoftAssert softAssert = new SoftAssert();
        
        String actualTitle = "Automation";
        String expectedTitle = "Bhau Automation";
        
        softAssert.assertEquals(actualTitle, expectedTitle, "Title mismatch!");
        System.out.println("This line will still execute even if assertion fails.");
        
        softAssert.assertAll(); // Marks the test as failed if any assertion failed
    }
}
  

Syntax:

SoftAssert softAssert = new SoftAssert();
softAssert.assertEquals(actual, expected);
softAssert.assertAll();
  

🧠 Commonly Used TestNG Assertions

💻 Example: Selenium with TestNG Assertions

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.testng.Assert;
import org.testng.annotations.Test;

public class TestNGAssertionDemo {
    @Test
    public void verifyPageTitle() {
        WebDriver driver = new ChromeDriver();
        driver.get("https://bhauautomation.com");

        String actualTitle = driver.getTitle();
        String expectedTitle = "Bhau Automation";

        Assert.assertEquals(actualTitle, expectedTitle, "Page title does not match!");
        driver.quit();
    }
}
  

🎥 Watch the Complete Video Tutorial

👉 Watch on YouTube: How To Use TestNG Assertions in Selenium Java

🎓 Key Takeaways

• Use Hard Assertions for strict test validations.
• Use Soft Assertions when you want to continue test execution.
• Always call assertAll() in SoftAssert to validate all conditions.
• Assertions improve test reliability and debugging.

⚡ Next Steps: Practice using all TestNG assertions in different scenarios to master real-world test validation.

🚀 Created with ❤️ by Bhau Automation