--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/recordingstream/TestOnFlush.java Wed Oct 30 19:43:52 2019 +0100
@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.api.consumer.recordingstream;
+
+import java.util.concurrent.CountDownLatch;
+
+import jdk.jfr.Event;
+import jdk.jfr.consumer.RecordingStream;
+
+/**
+ * @test
+ * @summary Tests RecordingStream::onFlush(...)
+ * @key jfr
+ * @requires vm.hasJFR
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.consumer.recordingstream.TestOnFlush
+ */
+public class TestOnFlush {
+
+ static class OneEvent extends Event {
+ }
+
+ public static void main(String... args) throws Exception {
+ testOnFlushNull();
+ testOneEvent();
+ testNoEvent();
+ }
+
+ private static void testOnFlushNull() {
+ log("Entering testOnFlushNull()");
+ try (RecordingStream rs = new RecordingStream()) {
+ try {
+ rs.onFlush(null);
+ throw new AssertionError("Expected NullPointerException from onFlush(null");
+ } catch (NullPointerException npe) {
+ // OK; as expected
+ }
+ }
+ log("Leaving testOnFlushNull()");
+ }
+
+ private static void testNoEvent() throws Exception {
+ log("Entering testNoEvent()");
+ CountDownLatch flush = new CountDownLatch(1);
+ try (RecordingStream r = new RecordingStream()) {
+ r.onFlush(() -> {
+ flush.countDown();
+ });
+ r.startAsync();
+ flush.await();
+ }
+ log("Leaving testNoEvent()");
+ }
+
+ private static void testOneEvent() throws InterruptedException {
+ log("Entering testOneEvent()");
+ CountDownLatch flush = new CountDownLatch(1);
+ try (RecordingStream r = new RecordingStream()) {
+ r.onEvent(e -> {
+ // ignore event
+ });
+ r.onFlush(() -> {
+ flush.countDown();
+ });
+ r.startAsync();
+ OneEvent e = new OneEvent();
+ e.commit();
+ flush.await();
+ }
+ log("Leaving testOneEvent()");
+ }
+
+ private static void log(String msg) {
+ System.out.println(msg);
+ }
+}