Discovering test with JUnit 5 doesn't execute

问题:

I'm using JUnit Jupiter version 5.0.0 (Release version) and I'm trying to use the test discovery feature. The documentation of Junit can be found in 7.1.1. Discovering Tests from http://junit.org/junit5/docs/5.0.0/user-guide/#launcher-api-discovery

My implementation is:

import static org.junit.platform.engine.discovery.ClassNameFilter.includeClassNamePatterns;
import static org.junit.platform.engine.discovery.DiscoverySelectors.selectPackage;

import org.junit.platform.launcher.Launcher;
import org.junit.platform.launcher.LauncherDiscoveryRequest;
import org.junit.platform.launcher.TestExecutionListener;
import org.junit.platform.launcher.TestIdentifier;
import org.junit.platform.launcher.TestPlan;
import org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder;
import org.junit.platform.launcher.core.LauncherFactory;
import org.junit.platform.launcher.listeners.LoggingListener;

public class MainPrueba {

    public static void main(String[] args) throws InterruptedException {

        Runnable task = () -> {
            System.out.println("Runing thread INI");

            LauncherDiscoveryRequest request = LauncherDiscoveryRequestBuilder.request()
                .selectors(
                        selectPackage("org.package.qabootfx.test.ping")
                        //,selectClass(QabootfxApplicationTests.class)
                )
                .filters(
                    //includeClassNamePatterns(".*Test")
                        includeClassNamePatterns(".*")
                )
                .build();

            Launcher launcher = LauncherFactory.create();

            TestPlan testPlan = launcher.discover(request);

            for (TestIdentifier root : testPlan.getRoots()) {
                System.out.println("Root: " + root.toString());

                for (TestIdentifier test : testPlan.getChildren(root)) {
                    System.out.println("Found test: " + test.toString());
                }
            }

            // Register a listener of your choice
            //TestExecutionListener listener = new SummaryGeneratingListener();
            TestExecutionListener listener = LoggingListener.forJavaUtilLogging(); //new LoggingListener();
            launcher.registerTestExecutionListeners(listener);


            launcher.execute(request);

            System.out.println("Runing thread END");

        };
        new Thread(task).start();

        Thread.sleep(5000);
        System.out.println("END");
    }

}

Examining LoggingListener class implementation we can see that this must print to the console the results. For example:

package org.junit.platform.launcher.listeners;

@API(status = MAINTAINED, since = "1.0")
public class LoggingListener implements TestExecutionListener { 

    ....

    @Override
    public void testPlanExecutionStarted(TestPlan testPlan) {
        log("TestPlan Execution Started: %s", testPlan);
    }

    @Override
    public void testPlanExecutionFinished(TestPlan testPlan) {
        log("TestPlan Execution Finished: %s", testPlan);
    }

    ...

}

and my Test class is:

public class QabootfxApplicationTest {

    @Test
    public void testAbout() {
        System.out.println("TEST Execution....  QabootfxApplicationTests.testAbout()");

        assertEquals(4, 5, "The optional assertion message is now the last parameter.");
    }
}

I'm expecting see in the console something similar to:

2017-09-20 10:53:48.041  INFO 11596 --- TestPlan Execution Started: ....
2017-09-20 10:53:48.041  INFO 11596 --- TestPlan Execution Finished: ....

but I can't see nothing similar to "... TestPlan Execution Started...".

The console output is:

Runing thread INI
Root: TestIdentifier [uniqueId = '[engine:junit-jupiter]', parentId = null, displayName = 'JUnit Jupiter', legacyReportingName = 'JUnit Jupiter', source = null, tags = [], type = CONTAINER]
Found test: TestIdentifier [uniqueId = '[engine:junit-jupiter]/[class:org.package.qabootfx.test.ping.QabootfxApplicationTest]', parentId = '[engine:junit-jupiter]', displayName = 'QabootfxApplicationTest', legacyReportingName = 'org.package.qabootfx.test.ping.QabootfxApplicationTest', source = ClassSource [className = 'org.package.qabootfx.test.ping.QabootfxApplicationTest', filePosition = null], tags = [], type = CONTAINER]
TEST Executon....  QabootfxApplicationTests.testAbout()
Runing thread END
END

Could be a bug? or I'm implementing something wrong?

回答1:

Why would you expect the listener created by LoggingListener.forJavaUtilLogging() to log anything at log level INFO... when the documentation explicitly states the following?

Create a LoggingListener which delegates to a java.util.logging.Logger using a log level of FINE.

If you want the LoggingListener to log messages at level INFO, you'll have to create it using the other factory method which accepts a log level like this LoggingListener.forJavaUtilLogging(Level.INFO).