How to Force End Test Suite in BeforeSuite if Condition Met in TestNG?

In TestNG the annotation of @BeforeSuite allows one to specify methods that need to be executed before any of the tests in the suite are run. Sometimes you may need to check for a certain condition and prevent the execution of the whole test suite if it is met. However, there is no such option in TestNG that allows one to forcibly end a test suite from a @BeforSuite-annotated method. To address this problem, we can use runtime exceptions or other mechanisms to turn off the execution of test cases when certain conditions fail.

Approach to force end an entire test suite from the BeforeSuite annotation if a condition is met in TestNG

Following are the steps to force the end of an entire test suite from the BeforeSuite annotation if a condition is met in TestNG:

• Create a Test Class: In this step, create a test class that contains different test methods where you will write the logic that you want to test like login, signup, etc. These test methods must be annotated with @ Test annotation.
• Define Test Methods: Inside this test class, define different test methods as needed. These test methods that are annotated with @ Test contain business logic that needs to be tested, like some features, login, signup, etc. TestNG will automatically detect and execute these test methods in sequence or parallel, depending on your configuration.
• Define a Method with @BeforeMethod: In that test class before defining all test methods, create a method by using @BeforeMethod annotation. This @BeforeMethod annotation makes sure that only before every test run prerequisite tasks are performed.
• Implement a Condition in @BeforeSuite: New features like prerequisites must be checked in the method marked with @BeforeSuite.
• Throw a Runtime Exception: Via the SkipException custom exception any other person exception, or even a RuntimeException, it is possible to abort any further execution of tests if the above condition proves to be untrue.
• Custom Listener for Control (Optional): Following that, Restricting test execution using a TestNG listener to enhance test execution control is also possible.
• Run the Test Suite: To run the tests, click on testNG.xml File and click on Run as 1 TestNG Suite. This will generate output on the console regarding how many test cases pass, fail, or skip. If you want to check the details of the failed test case, click on the result of the running suite.

Example Code

import org.testng.annotations.BeforeSuite;
import org.testng.annotations.Test;
import org.testng.SkipException;

public class SuiteTerminationExample {

    private boolean preconditionMet = false;  // Condition flag

    @BeforeSuite
    public void beforeSuiteSetup() {
        // Check a certain precondition
        if (!preconditionMet) {
            // If condition is not met, throw an exception to skip all tests
            System.out.println("Precondition not met. Terminating the test suite.");
            throw new SkipException("Skipping all tests due to unsatisfied precondition.");
        }
    }

    @Test
    public void testOne() {
        System.out.println("Test One");
    }

    @Test
    public void testTwo() {
        System.out.println("Test Two");
    }
}

Output

Conclusion

If a precondition fails, it is possible to force stop the execution of the TestNG suite effectively by making a conditional check inside the @BeforeSuite annotation and throwing an appropriate exception. This method allows you to have a say on how the tests are executed as test which should not run is avoided in case of failure in some primary setup. Or you can extend this method even further by introducing listeners or other custom logic in order to accomplish different types of termination scenarios in case of more complicated situations.