1 /*
   2  * Copyright (c) 2005, 2015, 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.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.io.File;
  25 import java.util.Arrays;
  26 
  27 import static jdk.testlibrary.Asserts.*;
  28 import jdk.test.lib.hprof.HprofParser;
  29 import jdk.testlibrary.JDKToolLauncher;
  30 import jdk.testlibrary.OutputAnalyzer;
  31 import jdk.testlibrary.ProcessTools;
  32 
  33 /*
  34  * @test
  35  * @bug 6321286
  36  * @summary Unit test for jmap utility
  37  * @library /lib/testlibrary
  38  * @library /../../test/lib/share/classes/
  39  * @build jdk.testlibrary.*
  40  * @run main BasicJMapTest
  41  */
  42 public class BasicJMapTest {
  43 
  44     private static ProcessBuilder processBuilder = new ProcessBuilder();
  45 
  46     public static void main(String[] args) throws Exception {
  47         testHisto();
  48         testHistoLive();
  49         testDump();
  50         testDumpLive();
  51     }
  52 
  53     private static void testHisto() throws Exception {
  54         OutputAnalyzer output = jmap("-histo");
  55         output.shouldHaveExitValue(0);
  56     }
  57 
  58     private static void testHistoLive() throws Exception {
  59         OutputAnalyzer output = jmap("-histo:live");
  60         output.shouldHaveExitValue(0);
  61     }
  62 
  63     private static void testDump() throws Exception {
  64         File dump = new File("java_pid$" + ProcessTools.getProcessId() + ".hprof");
  65         OutputAnalyzer output = jmap("-dump:format=b,file=" + dump.getName());
  66         output.shouldHaveExitValue(0);
  67         output.shouldContain("Heap dump file created");
  68         verifyDumpFile(dump);
  69     }
  70 
  71     private static void testDumpLive() throws Exception {
  72         File dump = new File("java_pid$" + ProcessTools.getProcessId() + ".hprof");
  73         OutputAnalyzer output = jmap("-dump:live,format=b,file=" + dump.getName());
  74         output.shouldHaveExitValue(0);
  75         output.shouldContain("Heap dump file created");
  76         verifyDumpFile(dump);
  77     }
  78 
  79     private static void verifyDumpFile(File dump) {
  80         assertTrue(dump.exists() && dump.isFile(), "Could not create dump file");
  81         try {
  82             HprofParser.parse(dump);
  83         } catch (Exception e) {
  84             e.printStackTrace();
  85             assertFalse(true, "Could not parse dump file");
  86         }
  87         dump.delete();
  88     }
  89 
  90     private static OutputAnalyzer jmap(String... toolArgs) throws Exception {
  91         JDKToolLauncher launcher = JDKToolLauncher.createUsingTestJDK("jmap");
  92         launcher.addVMArg("-XX:+UsePerfData");
  93         if (toolArgs != null) {
  94             for (String toolArg : toolArgs) {
  95                 launcher.addToolArg(toolArg);
  96             }
  97         }
  98         launcher.addToolArg(Integer.toString(ProcessTools.getProcessId()));
  99 
 100         processBuilder.command(launcher.getCommand());
 101         System.out.println(Arrays.toString(processBuilder.command().toArray()).replace(",", ""));
 102         OutputAnalyzer output = ProcessTools.executeProcess(processBuilder);
 103         System.out.println(output.getOutput());
 104 
 105         return output;
 106     }
 107 
 108 }