1 /*
   2  * Copyright (c) 2011, 2014, 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.util.List;
  29 
  30 import jdk.testlibrary.JcmdBase;
  31 import jdk.testlibrary.OutputAnalyzer;
  32 import jdk.testlibrary.Utils;
  33 
  34 /**
  35  * Unit test for jcmd utility. Tests jcmd options which do not send
  36  * requests to a specific JVM process.
  37  */
  38 /*
  39  * @test
  40  * @bug 7104647
  41  * @library /lib/testlibrary
  42  * @build jdk.testlibrary.*
  43  * @run main TestJcmdDefaults
  44  */
  45 public class TestJcmdDefaults {
  46 
  47     private static final String TEST_SRC = System.getProperty("test.src").trim();
  48     private static final String[] VM_ARGS = new String[] { "-XX:+UsePerfData" };
  49     private static final String JCMD_LIST_REGEX = "^\\d+\\s*.*";
  50 
  51     public static void main(String[] args) throws Exception {
  52         testJcmdUsage("-h");
  53         testJcmdUsage("-help");
  54         testJcmdDefaults();
  55         testJcmdDefaults("-l");
  56     }
  57 
  58     /**
  59      * jcmd -J-XX:+UsePerfData -h
  60      * jcmd -J-XX:+UsePerfData -help
  61      */
  62     private static void testJcmdUsage(String... jcmdArgs) throws Exception {
  63         OutputAnalyzer output = JcmdBase.jcmdNoPid(VM_ARGS, jcmdArgs);
  64 
  65         assertNotEquals(output.getExitValue(), 0);
  66         verifyOutputAgainstFile(output);
  67     }
  68 
  69     /**
  70      * jcmd -J-XX:+UsePerfData
  71      * jcmd -J-XX:+UsePerfData -l
  72      */
  73     private static void testJcmdDefaults(String... jcmdArgs) throws Exception {
  74         OutputAnalyzer output = JcmdBase.jcmdNoPid(VM_ARGS, jcmdArgs);
  75 
  76         output.shouldHaveExitValue(0);
  77         output.shouldContain("sun.tools.jcmd.JCmd");
  78         matchListedProcesses(output);
  79     }
  80 
  81     /**
  82      * Verifies the listed processes match a certain pattern.
  83      *
  84      * The output should look like:
  85      * 12246 sun.tools.jcmd.JCmd
  86      * 24428 com.sun.javatest.regtest.MainWrapper /tmp/jtreg/jtreg-workdir/classes/sun/tools/jcmd/TestJcmdDefaults.jta
  87      *
  88      * @param output The generated output from the jcmd.
  89      * @throws Exception
  90      */
  91     private static void matchListedProcesses(OutputAnalyzer output) throws Exception {
  92         int matchedCount = output.shouldMatchByLine(JCMD_LIST_REGEX);
  93         assertGreaterThan(matchedCount , 0,
  94                 "Found no lines matching pattern: " + JCMD_LIST_REGEX);
  95     }
  96 
  97     private static void verifyOutputAgainstFile(OutputAnalyzer output) throws IOException {
  98         File file = new File(TEST_SRC, "usage.out");
  99         List<String> fileOutput = Utils.fileAsList(file);
 100         List<String> outputAsLines = output.asLines();
 101         assertTrue(outputAsLines.containsAll(fileOutput),
 102                 "The ouput should contain all content of " + file.getAbsolutePath());
 103     }
 104 
 105 }