1 /* 2 * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.jfr.api.flightrecorder; 27 28 import static jdk.test.lib.Asserts.assertEquals; 29 import static jdk.test.lib.Asserts.assertFalse; 30 import static jdk.test.lib.Asserts.assertTrue; 31 32 import java.util.List; 33 34 import jdk.jfr.FlightRecorder; 35 import jdk.jfr.Recording; 36 37 /* 38 * @test 39 * @key jfr 40 * @library /test/lib 41 * @run main/othervm jdk.jfr.api.flightrecorder.TestGetRecordings 42 */ 43 public class TestGetRecordings { 44 45 public static void main(String[] args) throws Throwable { 46 FlightRecorder recorder = FlightRecorder.getFlightRecorder(); 47 48 // Recording should be empty at start. 49 List<Recording> recordings = recorder.getRecordings(); 50 assertTrue(recordings.isEmpty(), "recordings should be empty at start"); 51 52 // Create first recording 53 Recording r1 = new Recording(); 54 recordings = recorder.getRecordings(); 55 assertEquals(recordings.size(), 1, "Expected 1 recording"); 56 assertTrue(recordings.contains(r1), "r1 should be in list"); 57 58 // Create second recording 59 Recording r2 = new Recording(); 60 recordings = recorder.getRecordings(); 61 assertEquals(recordings.size(), 2, "Expected 2 recordings"); 62 assertTrue(recordings.contains(r2), "r2 should be in list"); 63 assertTrue(recordings.contains(r1), "r1 should still be in list"); 64 65 // Close first recording 66 r1.close(); 67 recordings = recorder.getRecordings(); 68 assertEquals(recordings.size(), 1, "Expected 1 remaining recording"); 69 assertTrue(recordings.contains(r2), "r2 should still be in list"); 70 assertFalse(recordings.contains(r1), "r1 should be removed"); 71 72 // Close second recording 73 r2.close(); 74 recordings = recorder.getRecordings(); 75 assertTrue(recordings.isEmpty(), "recordings should be empty after close"); 76 77 // Create recording with new Recording() 78 Recording r3 = new Recording(); 79 recordings = recorder.getRecordings(); 80 assertTrue(recordings.contains(r3 ), "new Recording() should be in list"); 81 r3.close(); 82 } 83 84 }