1 /*
   2  * Copyright (c) 2018, 2019, 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.recording.time;
  27 
  28 import java.time.Instant;
  29 
  30 import jdk.jfr.Recording;
  31 import jdk.testlibrary.Asserts;
  32 
  33 /*
  34  * @test
  35  * @key jfr
  36  * @summary Test Recording.get*Time()
  37  * @library /lib/testlibrary
  38  * @run main/othervm  jdk.jfr.api.recording.time.TestTime
  39  */
  40 
  41 public class TestTime {
  42 
  43     public static void main(String[] args) throws Throwable {
  44         Recording r = new Recording();
  45         Asserts.assertNull(r.getStartTime(), "getStartTime() not null before start");
  46         Asserts.assertNull(r.getStopTime(), "getStopTime() not null before start");
  47 
  48         final Instant beforeStart = Instant.now();
  49         r.start();
  50         final Instant afterStart = Instant.now();
  51 
  52         Asserts.assertNotNull(r.getStartTime(), "getStartTime() null after");
  53         Asserts.assertGreaterThanOrEqual(r.getStartTime(), beforeStart, "getStartTime() < beforeStart");
  54         Asserts.assertLessThanOrEqual(r.getStartTime(), afterStart, "getStartTime() > afterStart");
  55         Asserts.assertNull(r.getStopTime(), "getStopTime() not null before stop");
  56 
  57         final Instant beforeStop = Instant.now();
  58         r.stop();
  59         final Instant afterStop = Instant.now();
  60 
  61         Asserts.assertGreaterThanOrEqual(r.getStartTime(), beforeStart, "getStartTime() < beforeStart");
  62         Asserts.assertLessThanOrEqual(r.getStartTime(), afterStart, "getStartTime() > afterStart");
  63         Asserts.assertNotNull(r.getStopTime(), "getStopTime() null after stop");
  64         Asserts.assertGreaterThanOrEqual(r.getStopTime(), beforeStop, "getStopTime() < beforeStop");
  65         Asserts.assertLessThanOrEqual(r.getStopTime(), afterStop, "getStopTime() > afterStop");
  66 
  67         r.close();
  68 
  69         // Same checks again to make sure close() did not change the times.
  70         Asserts.assertGreaterThanOrEqual(r.getStartTime(), beforeStart, "getStartTime() < beforeStart");
  71         Asserts.assertLessThanOrEqual(r.getStartTime(), afterStart, "getStartTime() > afterStart");
  72         Asserts.assertNotNull(r.getStopTime(), "getStopTime() null after stop");
  73         Asserts.assertGreaterThanOrEqual(r.getStopTime(), beforeStop, "getStopTime() < beforeStop");
  74         Asserts.assertLessThanOrEqual(r.getStopTime(), afterStop, "getStopTime() > afterStop");
  75     }
  76 
  77 }