test/jdk/jdk/jfr/api/recorder/TestRecorderInitialized.java
changeset 50113 caf115bb98ad
child 51214 67736b4846a0
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/recorder/TestRecorderInitialized.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2018, 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.recorder;
+
+import jdk.jfr.FlightRecorder;
+import jdk.jfr.FlightRecorderListener;
+import jdk.test.lib.Asserts;
+
+/*
+ * @test TestRecorderListener
+ * @key jfr
+ * @library /test/lib
+ *
+ * @run main/othervm jdk.jfr.api.recorder.TestRecorderInitialized
+ */
+public class TestRecorderInitialized {
+
+    static class Listener implements FlightRecorderListener {
+        private boolean notified;
+
+        @Override
+        public void recorderInitialized(FlightRecorder r) {
+            notified = true;
+        }
+    }
+
+    public static void main(String...args) {
+        Listener l1 = new Listener();
+
+        FlightRecorder.addListener(l1);
+        Asserts.assertFalse(l1.notified, "Listener shouldn't be notified unless Flight Recorder is initialized");
+        // initialize Flight Recorder
+        FlightRecorder.getFlightRecorder();
+        Asserts.assertTrue(l1.notified, "Listener should be notified when Flight Recorder is initialized");
+        l1.notified = false;
+
+        Listener l2 = new Listener();
+        FlightRecorder.addListener(l1);
+        FlightRecorder.addListener(l2);
+        Asserts.assertTrue(l2.notified, "Listener should be notified if Flight Recorder is already initialized");
+        Asserts.assertTrue(l1.notified, "Only added listnener should be notified, if Flight Recorder is already initialized");
+
+    }
+}