1 /*
   2  * Copyright (c) 2011, 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 static jdk.testlibrary.Asserts.*;
  25 
  26 import java.io.File;
  27 import java.io.IOException;
  28 import java.nio.file.Files;
  29 import java.nio.file.Path;
  30 import java.nio.file.Paths;
  31 import java.util.List;
  32 
  33 import jdk.testlibrary.JcmdBase;
  34 import jdk.testlibrary.OutputAnalyzer;
  35 import jdk.testlibrary.Utils;
  36 
  37 /**
  38  * Unit test for jcmd utility. Tests jcmd options which do not send
  39  * requests to a specific JVM process.
  40  */
  41 /*
  42  * @test
  43  * @bug 7104647
  44  * @library /lib/testlibrary
  45  * @modules java.management
  46  * @build jdk.testlibrary.*
  47  * @run main TestJcmdDefaults
  48  */
  49 public class TestJcmdDefaults {
  50 
  51     private static final String TEST_SRC = System.getProperty("test.src").trim();
  52     private static final String[] VM_ARGS = new String[] { "-XX:+UsePerfData" };
  53     private static final String JCMD_LIST_REGEX = "^\\d+\\s*.*";
  54 
  55     public static void main(String[] args) throws Exception {
  56         testJcmdUsage("-h");
  57         testJcmdUsage("-help");
  58         testJcmdDefaults();
  59         testJcmdDefaults("-l");
  60     }
  61 
  62     /**
  63      * jcmd -J-XX:+UsePerfData -h
  64      * jcmd -J-XX:+UsePerfData -help
  65      */
  66     private static void testJcmdUsage(String... jcmdArgs) throws Exception {
  67         OutputAnalyzer output = JcmdBase.jcmdNoPid(VM_ARGS, jcmdArgs);
  68 
  69         assertNotEquals(output.getExitValue(), 0);
  70         verifyOutputAgainstFile(output);
  71     }
  72 
  73     /**
  74      * jcmd -J-XX:+UsePerfData
  75      * jcmd -J-XX:+UsePerfData -l
  76      */
  77     private static void testJcmdDefaults(String... jcmdArgs) throws Exception {
  78         OutputAnalyzer output = JcmdBase.jcmdNoPid(VM_ARGS, jcmdArgs);
  79 
  80         output.shouldHaveExitValue(0);
  81         output.shouldContain("sun.tools.jcmd.JCmd");
  82         matchListedProcesses(output);
  83     }
  84 
  85     /**
  86      * Verifies the listed processes match a certain pattern.
  87      *
  88      * The output should look like:
  89      * 12246 sun.tools.jcmd.JCmd
  90      * 24428 com.sun.javatest.regtest.MainWrapper /tmp/jtreg/jtreg-workdir/classes/sun/tools/jcmd/TestJcmdDefaults.jta
  91      *
  92      * @param output The generated output from the jcmd.
  93      * @throws Exception
  94      */
  95     private static void matchListedProcesses(OutputAnalyzer output) throws Exception {
  96         int matchedCount = output.shouldMatchByLine(JCMD_LIST_REGEX);
  97         assertGreaterThan(matchedCount , 0,
  98                 "Found no lines matching pattern: " + JCMD_LIST_REGEX);
  99     }
 100 
 101     private static void verifyOutputAgainstFile(OutputAnalyzer output) throws IOException {
 102         Path path = Paths.get(TEST_SRC, "usage.out");
 103         List<String> fileOutput = Files.readAllLines(path);
 104         List<String> outputAsLines = output.asLines();
 105         assertTrue(outputAsLines.containsAll(fileOutput),
 106                 "The ouput should contain all content of " + path.toAbsolutePath());
 107     }
 108 
 109 }