title: JUnit5 - How to get test result in AfterTestExecutionCallback
body: <p>I write JUnit5 Extension. But I cannot find way how to obtain test result.</p>
  
  <p>Extension looks like this:</p>
  
  <pre><code>import org.junit.jupiter.api.extension.AfterTestExecutionCallback;
  import org.junit.jupiter.api.extension.TestExtensionContext;
  
  public class TestResultExtension implements AfterTestExecutionCallback {
      @Override
      public void afterTestExecution(TestExtensionContext context) throws Exception {
          //How to get test result? SUCCESS/FAILED
      }
  }
  </code></pre>
  
  <p>Any hints how to obtain test result?</p>