Mercurial > hg > Members > kono > jpf-core

annotate src/tests/gov/nasa/jpf/test/java/lang/SystemTest.java @ 0:61d41facf527

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initial v8 import (history reset)
author Peter Mehlitz <Peter.C.Mehlitz@nasa.gov>
date Fri, 23 Jan 2015 10:14:01 -0800
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1 /*
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2 * Copyright (C) 2014, United States Government, as represented by the
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3 * Administrator of the National Aeronautics and Space Administration.
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4 * All rights reserved.
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5 *
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6 * The Java Pathfinder core (jpf-core) platform is licensed under the
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7 * Apache License, Version 2.0 (the "License"); you may not use this file except
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8 * in compliance with the License. You may obtain a copy of the License at
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9 *
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10 * http://www.apache.org/licenses/LICENSE-2.0.
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11 *
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12 * Unless required by applicable law or agreed to in writing, software
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13 * distributed under the License is distributed on an "AS IS" BASIS,
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14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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15 * See the License for the specific language governing permissions and
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16 * limitations under the License.
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17 */
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18 package gov.nasa.jpf.test.java.lang;
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19
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20 import gov.nasa.jpf.util.test.TestJPF;
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21 import gov.nasa.jpf.vm.Verify;
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22
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23 import org.junit.Test;
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24
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25 /**
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26 * raw test for java.lang.System functionality
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27 */
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28 public class SystemTest extends TestJPF {
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29
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30 final Object lock = new Object(); // need a shared object
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31 boolean exitCalled;
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32
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33 @Test
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34 public void testExit() {
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35 if (verifyNoPropertyViolation()) {
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36 Thread t = new Thread(new Runnable() {
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37
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38 @Override
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39 public void run() {
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40 while (true) {
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41 assert !exitCalled : "thread not stopped by System.exit()";
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42
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43 synchronized (lock) {
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44 try {
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45 lock.wait();
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46 } catch (InterruptedException x) {
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47 System.out.println("wait interrupted");
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48 }
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49 }
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50 }
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51 }
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52 });
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53
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54 t.start();
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55
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56 synchronized (lock) {
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57 exitCalled = true;
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58 System.out.println("calling System.exit(0)");
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59 System.exit(0);
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60 }
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61
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62 assert false : "main not stopped by System.exit()";
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63 }
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64 }
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65
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66 /**
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67 * just needs a gazillion more cases (different sizes, slices, overruns,
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68 * incompatible types etc.)
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69 */
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70 @Test
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71 public void testSimpleArrayCopy() {
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72 if (verifyNoPropertyViolation()) {
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73 int[] a = {0, 1, 2, 3, 4, 5, 6, 7};
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74 int[] b = new int[a.length];
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75
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76 System.arraycopy(a, 0, b, 0, a.length);
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77
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78 for (int i = 0; i < a.length; i++) {
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79 assert b[i] == i;
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80 }
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81 }
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82 }
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83
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84 @Test
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85 public void testSelfArrayCopy(){
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86 if (verifyNoPropertyViolation()){
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87 int[] a = {0, 1, 2, 3, 4, 5, 6, 7};
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88
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89 System.arraycopy(a, 3, a, 0, 5);
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90
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91 // the overwritten ones
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92 assertTrue(a[0] == 3);
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93 assertTrue(a[1] == 4);
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94 assertTrue(a[2] == 5);
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95 assertTrue(a[3] == 6);
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96 assertTrue(a[4] == 7);
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97
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98 // the old ones
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99 assertTrue(a[5] == 5);
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100 assertTrue(a[6] == 6);
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101 assertTrue(a[7] == 7);
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102 }
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103 }
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104
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105 @Test
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106 public void testOverlappingSelfArrayCopy(){
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107 if (verifyNoPropertyViolation()){
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108 int[] a = {0, 1, 2, 3, 4, 5, 6, 7};
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109
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110 System.arraycopy(a, 0, a, 2, 3);
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111
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112 // copying should proceed as if using a temporary destination
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113 assertTrue(a[0] == 0);
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114 assertTrue(a[1] == 1);
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115 assertTrue(a[2] == 0);
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116 assertTrue(a[3] == 1);
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117 assertTrue(a[4] == 2);
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118 assertTrue(a[5] == 5);
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119 assertTrue(a[6] == 6);
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120 assertTrue(a[7] == 7);
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121 }
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122 }
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123
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124 @Test
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125 public void testIncompatibleReferencesArrayCopy(){
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126 if (verifyUnhandledException("java.lang.ArrayStoreException")){
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127 String[] dst = new String[2];
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128 Object[] src = { "one", new Integer(2) };
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129
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130 System.arraycopy(src,0,dst,0,src.length);
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131 }
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132 }
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133
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134 @Test
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135 public void testRestoredArrayCopy(){
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136 if (verifyNoPropertyViolation()){
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137 Object[] src = { "one", "two" };
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138 Object[] dst = new Object[2];
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139
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140 int n = Verify.getInt(0, 1);
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141 System.out.println("processing choice: " + n);
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142
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143 if (n == 0){
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144 System.out.println("copying array");
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145 System.arraycopy(src,0,dst,0,src.length);
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146 } else if (n == 1){
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147 System.out.println("checking if non-copied dst[0] is still null");
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148 assertTrue( dst[0] == null);
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149 }
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150 }
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151 }
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152 }