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annotate src/tests/gov/nasa/jpf/test/mc/basic/IdleLoopTest.java @ 0:61d41facf527

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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.mc.basic;
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19
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20 import gov.nasa.jpf.util.test.TestJPF;
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21
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22 import org.junit.Test;
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23
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24 /**
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25 * JPF test driver for the IdleFilter listener
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26 */
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27 public class IdleLoopTest extends TestJPF {
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28
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29 static final String LISTENER = "+listener=.listener.IdleFilter";
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30
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31 @Test public void testBreak () {
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32 if (verifyNoPropertyViolation(LISTENER, "+idle.action=break",
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33 "+log.warning=gov.nasa.jpf.listener.IdleFilter",
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34 "+vm.max_transition_length=MAX")) {
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35 int y = 4;
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36 int x = 0;
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37
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38 while (x != y) { // JPF should state match on the backjump
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39 x = x + 1;
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40 if (x > 3) {
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41 x = 0;
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42 }
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43 }
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44
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45 assert false : "we should never get here";
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46 }
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47 }
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48
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49 @Test public void testPrune () {
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50 if (verifyNoPropertyViolation(LISTENER, "+idle.action=prune",
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51 "+log.warning=gov.nasa.jpf.listener.IdleFilter",
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52 "+vm.max_transition_length=MAX")) {
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53 int y = 4;
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54 int x = 0;
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55
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56 int loopCount = 0;
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57
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58 while (x != y) { // JPF should prune on the backjump despite of changed 'loopCount'
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59 loopCount++;
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60 x = x + 1;
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61 if (x > 3) {
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62 x = 0;
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63 }
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64 }
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65
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66 assert false : "we should never get here";
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67 }
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68 }
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69
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70 @Test public void testJump () {
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71 if (verifyNoPropertyViolation(LISTENER, "+idle.action=jump",
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72 "+idle.max_backjumps=100",
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73 "+log.warning=gov.nasa.jpf.listener.IdleFilter",
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74 "+vm.max_transition_length=MAX")) {
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75
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76 for (int i=0; i<1000; i++){
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77 assert i < 500 : "JPF failed to jump past idle loop";
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78 }
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79
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80 System.out.println("Ok, jumped past loop");
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81 }
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82 }
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83
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84 }