Support multiple system-out tags per testcase

[roded]

What feature do you want to see added?

JUnit 5 can output multiple system-out (and system-err) tags per testcase tag.
It would be useful if the plugin would pick up the contents of all system-out tags as part of the testcase's stdout contents.

e.g.:
https://stackoverflow.com/questions/53822338/jenkins-not-displaying-test-case-stdout

Upstream changes

No response

Are you interested in contributing this feature?

No response

[timja]

Do you have sample code of how this is generated in practice?

The stackoverflow post does have a reference output but it would be good to understand more about how it works.

[roded]

I'm using something like this:

        LauncherDiscoveryRequestBuilder launcherDiscoveryRequestBuilder = LauncherDiscoveryRequestBuilder.request()
            .configurationParameter(LauncherConstants.CAPTURE_STDOUT_PROPERTY_NAME, "true")
            .configurationParameter(LauncherConstants.CAPTURE_STDERR_PROPERTY_NAME, "true");
        for (String className : classNames) {
            launcherDiscoveryRequestBuilder.selectors(DiscoverySelectors.selectClass(className));
        }
        LauncherDiscoveryRequest launcherDiscoveryRequest = launcherDiscoveryRequestBuilder.build();

        PrintWriter printWriter = new PrintWriter(System.err);
        LegacyXmlReportGeneratingListener legacyXmlReportGeneratingListener = new LegacyXmlReportGeneratingListener(
            reportsDirectory.toPath(),
            printWriter);
        SummaryGeneratingListener summaryGeneratingListener = new SummaryGeneratingListener();
        LoggingListener loggingListener =
            LoggingListener.forBiConsumer((throwable, stringSupplier) -> logger.info(stringSupplier.get(), throwable));
        try (LauncherSession session = LauncherFactory.openSession()) {
            Launcher launcher = session.getLauncher();
            launcher.registerTestExecutionListeners(
                summaryGeneratingListener,
                legacyXmlReportGeneratingListener,
                loggingListener);
            TestPlan testPlan = launcher.discover(launcherDiscoveryRequest);
            logger.info("Executing test plan...");
            launcher.execute(testPlan);
        }