https://romanempire.dev/tags/testing/ Recent content in Testing on Roman Empire Hugo -- gohugo.io en contact@romanempire.dev (Roman) contact@romanempire.dev (Roman) 🦆 Fri, 20 Mar 2026 00:00:00 +0000 https://romanempire.dev/posts/tech/java/junit/ Fri, 20 Mar 2026 00:00:00 +0000 contact@romanempire.dev (Roman) https://romanempire.dev/posts/tech/java/junit/ <h2 class="relative group">Foundations <div id="foundations" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#foundations" aria-label="Anchor">#</a> </span> </h2> <p>JUnit 5 is composed of three modules:</p> <table> <thead> <tr> <th>Module</th> <th>Role</th> </tr> </thead> <tbody> <tr> <td><strong>JUnit Platform</strong></td> <td>Foundation layer. Defines the <code>TestEngine</code> API and launches test suites. IDEs and build tools (Maven, Gradle) integrate here.</td> </tr> <tr> <td><strong>JUnit Jupiter</strong></td> <td>The JUnit 5 programming model. Provides all the annotations (<code>@Test</code>, <code>@BeforeEach</code>, etc.) and the engine that runs them.</td> </tr> <tr> <td><strong>JUnit Vintage</strong></td> <td>Backwards compatibility engine. Runs JUnit 3 and JUnit 4 tests on the Platform without changes.</td> </tr> </tbody> </table> <p><figure><img class="my-0 rounded-md" loading="lazy" decoding="async" fetchpriority="low" alt="" src="./img/junit.png" ></figure> </p>