Custom conditions with @EnabledIf in JUnit - Test Execution Trace

Test Overview

This test uses JUnit's @EnabledIf annotation to run a test only when a custom condition method returns true. It verifies that the condition controls test execution.

Test Code - JUnit 5

JUnit

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.condition.EnabledIf;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class CustomConditionTest {

    @Test
    @EnabledIf("customCondition")
    void testRunsOnlyIfConditionTrue() {
        assertTrue(true, "This test runs only if customCondition returns true");
    }

    boolean customCondition() {
        // Custom logic, here simply returns true
        return true;
    }
}

Execution Trace - 4 Steps

Step	Action	System State	Assertion	Result
1	JUnit test runner starts and scans for tests	Test class CustomConditionTest is loaded	-	PASS
2	JUnit evaluates @EnabledIf annotation by calling customCondition()	customCondition() method returns true	Check if customCondition() returns true to enable test	PASS
3	JUnit executes testRunsOnlyIfConditionTrue() test method	Inside test method, assertion assertTrue(true) runs	assertTrue(true) verifies condition is true	PASS
4	Test completes successfully	Test result recorded as passed	-	PASS

Failure Scenario

Failing Condition: customCondition() returns false causing test to be disabled

Execution Trace Quiz - 3 Questions

What does the @EnabledIf annotation do in this test?

A Runs the test only if the customCondition method returns true

B Always runs the test regardless of any condition

C Disables the test permanently

D Runs the test only if an exception is thrown

Key Result

Using @EnabledIf with a custom method helps run tests conditionally, improving test suite flexibility and avoiding unnecessary test runs.