1 /*
   2  * Copyright (c) 2000, 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  * @test
  26  * @bug 4290640 4785473
  27  * @build package1.Class1 package2.Class2 package1.package3.Class3 Assert
  28  * @run main/othervm Assert
  29  * @summary Test the assertion facility
  30  * @author Mike McCloskey
  31  * @key randomness
  32  */
  33 
  34 import package1.*;
  35 import package2.*;
  36 import package1.package3.*;
  37 import java.io.*;
  38 import java.util.Random;
  39 
  40 public class Assert {
  41 
  42     private static Class1 testClass1;
  43     private static Class2 testClass2;
  44     private static Class3 testClass3;
  45     private static final  boolean debug = false;
  46     private static Random generator = new Random();
  47 
  48     /**
  49      * The first invocation of this test starts a loop which exhaustively tests
  50      * the object tree with all of its different settings.
  51      * There are 7 test objects in a tree that has 7 different places to set
  52      * assertions untouched/on/off so this tests 3^7 or 2187 different
  53      * configurations.
  54      *
  55      * This test spawns a new VM for each run because assertions are set on or
  56      * off at class load time. Once the class is loaded its assertion status
  57      * does not change.
  58      */
  59     public static void main(String[] args) throws Exception {
  60 
  61         // Switch values: 0=don't touch, 1=off, 2 = on
  62         int[] switches = new int[7];
  63 
  64         int switchSource = 0;
  65         if (args.length == 0) { // This is master version
  66 
  67             // This code is for an exhaustive test
  68             //while(switchSource < 2187) {
  69             //    int temp = switchSource++;
  70 
  71             // This code is for a weaker but faster test
  72             for(int x=0; x<100; x++) {
  73                 int temp = generator.nextInt(2187);
  74                 for(int i=0; i<7; i++) {
  75                     switches[i] = temp % 3;
  76                     temp = temp / 3;
  77                 }
  78 
  79                 // Spawn new VM and load classes
  80                 String command = System.getProperty("java.home") +
  81                     File.separator + "bin" + File.separator + "java Assert";
  82 
  83                 StringBuffer commandString = new StringBuffer(command);
  84                 for(int j=0; j<7; j++)
  85                     commandString.append(" "+switches[j]);
  86 
  87                 Process p = null;
  88                 p = Runtime.getRuntime().exec(commandString.toString());
  89 
  90                 if (debug) { // See output of test VMs
  91                     BufferedReader blah = new BufferedReader(
  92                                           new InputStreamReader(p.getInputStream()));
  93                     String outString = blah.readLine();
  94                     while (outString != null) {
  95                         System.out.println("from slave:"+outString);
  96                         outString = blah.readLine();
  97                     }
  98                 }
  99 
 100                 p.waitFor();
 101                 int result = p.exitValue();
 102                 if (debug) { // See which switch configs failed
 103                     if (result == 0) {
 104                         for(int k=6; k>=0; k--)
 105                             System.out.print(switches[k]);
 106                         System.out.println();
 107                     } else {
 108                         System.out.print("Nonzero Exit: ");
 109                         for(int k=6; k>=0; k--)
 110                             System.out.print(switches[k]);
 111                         System.out.println();
 112                     }
 113                 } else {
 114                     if (result != 0) {
 115                         System.err.print("Nonzero Exit: ");
 116                         for(int k=6; k>=0; k--)
 117                             System.err.print(switches[k]);
 118                         System.err.println();
 119                         throw new RuntimeException("Assertion test failure.");
 120                     }
 121                 }
 122             }
 123         } else { // This is a test spawn
 124             for(int i=0; i<7; i++)
 125                 switches[i] = Integer.parseInt(args[i]);
 126 
 127             SetAssertionSwitches(switches);
 128             ConstructClassTree();
 129             TestClassTree(switches);
 130         }
 131     }
 132 
 133     /*
 134      * Activate/Deactivate the assertions in the tree according to the
 135      * specified switches.
 136      */
 137     private static void SetAssertionSwitches(int[] switches) {
 138         ClassLoader loader = ClassLoader.getSystemClassLoader();
 139 
 140         if (switches[0] != 0)
 141             loader.setDefaultAssertionStatus(switches[0]==2);
 142         if (switches[1] != 0)
 143             loader.setPackageAssertionStatus("package1", switches[1]==2);
 144         if (switches[2] != 0)
 145             loader.setPackageAssertionStatus("package2", switches[2]==2);
 146         if (switches[3] != 0)
 147             loader.setPackageAssertionStatus("package1.package3", switches[3]==2);
 148         if (switches[4] != 0)
 149             loader.setClassAssertionStatus("package1.Class1", switches[4]==2);
 150         if (switches[5] != 0)
 151             loader.setClassAssertionStatus("package2.Class2", switches[5]==2);
 152         if (switches[6] != 0)
 153             loader.setClassAssertionStatus("package1.package3.Class3", switches[6]==2);
 154     }
 155 
 156     /*
 157      * Verify that the assertions are activated or deactivated as specified
 158      * by the switches.
 159      */
 160     private static void TestClassTree(int[] switches) {
 161 
 162         // Class1 and anonymous inner class
 163         boolean assertsOn = (switches[4]==2) ? true : (switches[4]==1) ? false :
 164             (switches[1]==2) ? true : (switches[1]==1) ? false : (switches[0]==2) ?
 165             true: false;
 166         testClass1.testAssert(assertsOn);
 167 
 168         // Class1 inner class Class11
 169         assertsOn = (switches[4]==2) ? true : (switches[4]==1) ? false :
 170             (switches[1]==2) ? true : (switches[1]==1) ? false : (switches[0]==2) ?
 171             true: false;
 172         Class1.Class11.testAssert(assertsOn);
 173 
 174         // Class2
 175         assertsOn = (switches[5]==2) ? true : (switches[5]==1) ? false :
 176             (switches[2]==2) ? true : (switches[2]==1) ? false : (switches[0]==2) ?
 177             true: false;
 178         testClass2.testAssert(assertsOn);
 179 
 180         // Class3 and anonymous inner class
 181         assertsOn = (switches[6]==2) ? true : (switches[6]==1) ? false :
 182                     (switches[3]==2) ? true : (switches[3]==1) ? false :
 183                     (switches[1]==2) ? true : (switches[1]==1) ? false :
 184                     (switches[0]==2) ? true: false;
 185         testClass3.testAssert(assertsOn);
 186 
 187         // Class3 inner class Class31
 188         assertsOn = (switches[6]==2) ? true : (switches[6]==1) ? false :
 189                     (switches[3]==2) ? true : (switches[3]==1) ? false :
 190                     (switches[1]==2) ? true : (switches[1]==1) ? false :
 191                     (switches[0]==2) ? true : false;
 192         Class3.Class31.testAssert(assertsOn);
 193 
 194     }
 195 
 196     /*
 197      * Create the class tree to be tested. Each test run must reload the classes
 198      * of the tree since assertion status is determined at class load time.
 199      */
 200     private static void ConstructClassTree() {
 201         testClass1 = new Class1();
 202         testClass2 = new Class2();
 203         testClass3 = new Class3();
 204     }
 205 
 206 
 207 }
--- EOF ---