1 /*
   2  * Copyright (c) 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 /**
  25  * Utility class for launching a test in a separate JVM.
  26  */
  27 
  28 import java.util.List;
  29 import java.util.ArrayList;
  30 import java.util.Arrays;
  31 import jdk.testlibrary.OutputAnalyzer;
  32 import jdk.testlibrary.Utils;
  33 import jdk.testlibrary.ProcessTools;
  34 import jdk.testlibrary.JDKToolFinder;
  35 
  36 public class RunUtil {
  37 
  38     // Used to mark that the test has passed successfully.
  39     public static final String successMessage = "Test passed.";
  40     private static final String[] EMPTY_FILTER = new String[0];
  41 
  42     public static void runTestClearGcOpts(String main, String... testOpts) throws Throwable {
  43         runTest(main, EMPTY_FILTER, true, testOpts);
  44     }
  45 
  46     public static void runTestKeepGcOpts(String main, String... testOpts) throws Throwable {
  47         runTest(main, EMPTY_FILTER, false, testOpts);
  48     }
  49 
  50     public static void runTestClearGcOpts(String[] filters, String main, String... testOpts) throws Throwable {
  51         runTest(main, filters, true, testOpts);
  52     }
  53 
  54     public static void runTestKeepGcOpts(String[] filters, String main, String... testOpts) throws Throwable {
  55         runTest(main, filters, false, testOpts);
  56     }
  57    
  58     /**
  59      * Runs a test in a separate JVM.
  60      * command line like:
  61      * {test_jdk}/bin/java {defaultopts} -cp {test.class.path} {testopts} main
  62      *
  63      * {defaultopts} are the default java options set by the framework.
  64      * Default GC options in {defaultopts} may be removed.
  65      * This is used when the test specifies its own GC options.
  66      *
  67      * @param main Name of the main class.
  68      * @param filters java options to filter out
  69      * @param clearGcOpts true if the default GC options should be removed.
  70      * @param testOpts java options specified by the test.
  71      */
  72     private static void runTest(String main, String[] filters, boolean clearGcOpts, String... testOpts)
  73                 throws Throwable {
  74         List<String> opts = new ArrayList<>();
  75         opts.add(JDKToolFinder.getJDKTool("java"));
  76         opts.addAll(Arrays.asList(Utils.getFilteredTestJavaOpts(filters)));
  77         opts.add("-cp");
  78         opts.add(System.getProperty("test.class.path", "test.class.path"));
  79         opts.add("-XX:+PrintGCDetails");
  80 
  81         if (clearGcOpts) {
  82             opts = Utils.removeGcOpts(opts);
  83         }
  84         opts.addAll(Arrays.asList(testOpts));
  85         opts.add(main);
  86 
  87         OutputAnalyzer output = ProcessTools.executeProcess(opts.toArray(new String[0]));
  88         output.shouldHaveExitValue(0);
  89         if (output.getStdout().indexOf(successMessage) < 0) {
  90             throw new Exception("output missing '" + successMessage + "'");
  91         }
  92     } 
  93 }