JUnit5 - How to get test result in AfterTestExecutionCallback

I write JUnit5 Extension. But I cannot find way how to obtain test result.

Extension looks like this:

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
    }
}

Any hints how to obtain test result?

As other answers point out, JUnit communicates failed tests with exceptions, so an AfterTestExecutionCallback can be used to gleam what happened. Note that this is error prone as extension running later might still fail the test.

Another way to do that is to register a custom TestExecutionListener. Both of these approaches are a little roundabout, though. There is an issue that tracks a specific extension point for reacting to test results, which would likely be the most straight-forward answer to your question. If you can provide a specific use case, it would be great if you could head over to #542 and leave a comment describing it.