Detect Failure or Error of Junit Test in @After method

Question

Is there a way in JUnit to detect within an @After annotated method if there was a test failure or error in the test case?

One ugly solution would b

Answer 1

I don't know any easy or elegant way to detect the failure of a Junit test in an @After method.

If it is possible to use a TestRule instead of an @After method, one possibility to do it is using two chained TestRules, using a TestWatcher as the inner rule.

Example:

    package org.example;

    import static org.junit.Assert.fail;

    import org.junit.Rule;
    import org.junit.Test;
    import org.junit.rules.ExternalResource;
    import org.junit.rules.RuleChain;
    import org.junit.rules.TestRule;
    import org.junit.rules.TestWatcher;
    import org.junit.runner.Description;

    public class ExampleTest {

      private String name = "";
      private boolean failed;

      @Rule
      public TestRule afterWithFailedInformation = RuleChain
        .outerRule(new ExternalResource(){
          @Override
          protected void after() {
            System.out.println("Test "+name+" "+(failed?"failed":"finished")+".");
          }      
        })
        .around(new TestWatcher(){
          @Override
          protected void finished(Description description) {
            name = description.getDisplayName();
          }
          @Override
          protected void failed(Throwable e, Description description) {
            failed = true;
          }      
        })
      ;

      @Test
      public void testSomething(){
        fail();
      }

      @Test
      public void testSomethingElse(){
      }

    }