Load interceptors before sessions listeners

Author: marcphilipp

junit-platform-launcher/src/main/java/org/junit/platform/launcher/core/DefaultLauncherSession.java

@@ -28,17 +28,17 @@
  */
 class DefaultLauncherSession implements LauncherSession {
 
-	private final DelegatingCloseableLauncher<CloseableLauncher> launcher;
 	private final LauncherSessionListener listener;
+	private final DelegatingCloseableLauncher<CloseableLauncher> launcher;
 
-	DefaultLauncherSession(Supplier<Launcher> launcherSupplier, List<LauncherInterceptor> interceptors,
-			LauncherSessionListener listener) {
+	DefaultLauncherSession(List<LauncherInterceptor> interceptors, Supplier<Launcher> launcherSupplier,
+			Supplier<LauncherSessionListener> listenerSupplier) {
+		this.listener = listenerSupplier.get();
 		CloseableLauncher closeableLauncher = InterceptingClosableLauncher.decorate(launcherSupplier, interceptors);
 		this.launcher = new DelegatingCloseableLauncher<>(closeableLauncher, delegate -> {
 			delegate.close();
 			return ClosedLauncher.INSTANCE;
 		});
-		this.listener = listener;
 		listener.launcherSessionOpened(this);
 	}
 

junit-platform-launcher/src/main/java/org/junit/platform/launcher/core/LauncherFactory.java

@@ -100,8 +100,8 @@ public static LauncherSession openSession() throws PreconditionViolationExceptio
 	public static LauncherSession openSession(LauncherConfig config) throws PreconditionViolationException {
 		Preconditions.notNull(config, "LauncherConfig must not be null");
 		LauncherConfigurationParameters configurationParameters = LauncherConfigurationParameters.builder().build();
-		return new DefaultLauncherSession(() -> createDefaultLauncher(config, configurationParameters),
-			collectLauncherInterceptors(configurationParameters), createLauncherSessionListener(config));
+		return new DefaultLauncherSession(collectLauncherInterceptors(configurationParameters),
+			() -> createDefaultLauncher(config, configurationParameters), () -> createLauncherSessionListener(config));
 	}
 
 	/**
@@ -131,7 +131,7 @@ public static Launcher create(LauncherConfig config) throws PreconditionViolatio
 		Preconditions.notNull(config, "LauncherConfig must not be null");
 		LauncherConfigurationParameters configurationParameters = LauncherConfigurationParameters.builder().build();
 		return new SessionPerRequestLauncher(() -> createDefaultLauncher(config, configurationParameters),
-			createLauncherSessionListener(config), () -> collectLauncherInterceptors(configurationParameters));
+			() -> createLauncherSessionListener(config), () -> collectLauncherInterceptors(configurationParameters));
 	}
 
 	private static DefaultLauncher createDefaultLauncher(LauncherConfig config,

junit-platform-launcher/src/main/java/org/junit/platform/launcher/core/SessionPerRequestLauncher.java

@@ -29,13 +29,14 @@ class SessionPerRequestLauncher implements Launcher {
 
 	private final LauncherListenerRegistry listenerRegistry = new LauncherListenerRegistry();
 	private final Supplier<Launcher> launcherSupplier;
-	private final LauncherSessionListener sessionListener;
+	private final Supplier<LauncherSessionListener> sessionListenerSupplier;
 	private final Supplier<List<LauncherInterceptor>> interceptorFactory;
 
-	SessionPerRequestLauncher(Supplier<Launcher> launcherSupplier, LauncherSessionListener sessionListener,
+	SessionPerRequestLauncher(Supplier<Launcher> launcherSupplier,
+			Supplier<LauncherSessionListener> sessionListenerSupplier,
 			Supplier<List<LauncherInterceptor>> interceptorFactory) {
 		this.launcherSupplier = launcherSupplier;
-		this.sessionListener = sessionListener;
+		this.sessionListenerSupplier = sessionListenerSupplier;
 		this.interceptorFactory = interceptorFactory;
 	}
 
@@ -71,8 +72,8 @@ public void execute(TestPlan testPlan, TestExecutionListener... listeners) {
 	}
 
 	private LauncherSession createSession() {
-		LauncherSession session = new DefaultLauncherSession(launcherSupplier, interceptorFactory.get(),
-			sessionListener);
+		LauncherSession session = new DefaultLauncherSession(interceptorFactory.get(), launcherSupplier,
+			sessionListenerSupplier);
 		Launcher launcher = session.getLauncher();
 		listenerRegistry.launcherDiscoveryListeners.getListeners().forEach(
 			launcher::registerLauncherDiscoveryListeners);

platform-tooling-support-tests/projects/standalone/expected-err.txt

@@ -1,4 +1,6 @@
 .+ org.junit.platform.launcher.core.ServiceLoaderRegistry load
+.+ Loaded LauncherInterceptor instances: ..
+.+ org.junit.platform.launcher.core.ServiceLoaderRegistry load
 .+ Loaded LauncherSessionListener instances: ..
 .+ org.junit.platform.launcher.core.ServiceLoaderTestEngineRegistry loadTestEngines
 .+ Discovered TestEngines:

platform-tooling-support-tests/src/test/java/platform/tooling/support/tests/StandaloneTests.java

@@ -120,6 +120,7 @@ void test() throws IOException {
 				.addArguments("--show-version") //
 				.addArguments("-enableassertions") //
 				.addArguments("-Djava.util.logging.config.file=logging.properties") //
+				.addArguments("-Djunit.platform.launcher.interceptors.enabled=true") //
 				.addArguments("-jar", MavenRepo.jar("junit-platform-console-standalone")) //
 				.addArguments("--scan-class-path") //
 				.addArguments("--disable-banner") //
@@ -153,6 +154,7 @@ void testOnJava8() throws IOException {
 				.addArguments("--show-version") //
 				.addArguments("-enableassertions") //
 				.addArguments("-Djava.util.logging.config.file=logging.properties") //
+				.addArguments("-Djunit.platform.launcher.interceptors.enabled=true") //
 				.addArguments("-jar", MavenRepo.jar("junit-platform-console-standalone")) //
 				.addArguments("--scan-class-path") //
 				.addArguments("--disable-banner") //
@@ -187,6 +189,7 @@ void testOnJava8SelectPackage() throws IOException {
 				.addArguments("--show-version") //
 				.addArguments("-enableassertions") //
 				.addArguments("-Djava.util.logging.config.file=logging.properties") //
+				.addArguments("-Djunit.platform.launcher.interceptors.enabled=true") //
 				.addArguments("-jar", MavenRepo.jar("junit-platform-console-standalone")) //
 				.addArguments("--select-package", "standalone") //
 				.addArguments("--disable-banner") //