TestNG groups

  

What are Testng Groups?

In Testng, groups are used to categorize your test methods logically so you can run:

• A specific set of tests (like "smoke", "regression", "sanity")

• Multiple tests together, even if they are in different classes

Groups allow modular test execution, making large test suites more manageable and efficient.

Why Use Groups?

• Run a subset of tests without running the entire suite

• Reuse the same test in multiple groupings

• Organize tests based on functionality, feature, or type (example: @smoke, @regression, @login)

Example: TestNG Groups using Java

Step 1: Create Java Test Class with Groups

import org.testng.annotations.Test;

public class GroupTestExample {

    @Test(groups = {"smoke", "login"})
    public void loginTest() {
        System.out.println("Smoke/Login Test: Login functionality");
    }

    @Test(groups = {"regression"})
    public void profileTest() {
        System.out.println("Regression Test: Profile page validation");
    }

    @Test(groups = {"sanity", "checkout"})
    public void paymentTest() {
        System.out.println("Sanity/Checkout Test: Payment flow");
    }

    @Test
    public void generalTest() {
        System.out.println("General Test: No group assigned");
    }
}

Step 2: Define Groups in testng.xml




It will run only the smoke group

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd">
<suite name="GroupSuite">
  <test name="SmokeGroupOnly">
    <groups>
      <run>
        <include name="smoke"/>
      </run>
    </groups>
    <classes>
      <class name="GroupTestExample"/>
    </classes>
  </test>
</suite>

Output

Smoke/Login Test: Login functionality

We can also run multiple groups:

<include name="smoke"/>
<include name="sanity"/>

We can also exclude specific groups:

<groups>
  <run>
    <exclude name="regression"/>
  </run>
</groups>

If a test case execution depends upon successful execution of group of test cases then we can also create dependencies on test cases by using 'dependsOnGroups' attribute in @Test annotation, as shown below in code snippet.

@Test(groups = "db")
public void connectToDB() {
    System.out.println("Connected to DB");
}

@Test(groups = "sanity", dependsOnGroups = "db")
public void fetchUserData() {
    System.out.println("Fetched user data after DB connection");
}