Mercurial > hg > Members > kono > jpf-core

comparison src/tests/gov/nasa/jpf/test/mc/basic/IdleLoopTest.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 /*
2 * Copyright (C) 2014, United States Government, as represented by the
3 * Administrator of the National Aeronautics and Space Administration.
4 * All rights reserved.
5 *
6 * The Java Pathfinder core (jpf-core) platform is licensed under the
7 * Apache License, Version 2.0 (the "License"); you may not use this file except
8 * in compliance with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0.
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18 package gov.nasa.jpf.test.mc.basic;
19
20 import gov.nasa.jpf.util.test.TestJPF;
21
22 import org.junit.Test;
23
24 /**
25 * JPF test driver for the IdleFilter listener
26 */
27 public class IdleLoopTest extends TestJPF {
28
29 static final String LISTENER = "+listener=.listener.IdleFilter";
30
31 @Test public void testBreak () {
32 if (verifyNoPropertyViolation(LISTENER, "+idle.action=break",
33 "+log.warning=gov.nasa.jpf.listener.IdleFilter",
34 "+vm.max_transition_length=MAX")) {
35 int y = 4;
36 int x = 0;
37
38 while (x != y) { // JPF should state match on the backjump
39 x = x + 1;
40 if (x > 3) {
41 x = 0;
42 }
43 }
44
45 assert false : "we should never get here";
46 }
47 }
48
49 @Test public void testPrune () {
50 if (verifyNoPropertyViolation(LISTENER, "+idle.action=prune",
51 "+log.warning=gov.nasa.jpf.listener.IdleFilter",
52 "+vm.max_transition_length=MAX")) {
53 int y = 4;
54 int x = 0;
55
56 int loopCount = 0;
57
58 while (x != y) { // JPF should prune on the backjump despite of changed 'loopCount'
59 loopCount++;
60 x = x + 1;
61 if (x > 3) {
62 x = 0;
63 }
64 }
65
66 assert false : "we should never get here";
67 }
68 }
69
70 @Test public void testJump () {
71 if (verifyNoPropertyViolation(LISTENER, "+idle.action=jump",
72 "+idle.max_backjumps=100",
73 "+log.warning=gov.nasa.jpf.listener.IdleFilter",
74 "+vm.max_transition_length=MAX")) {
75
76 for (int i=0; i<1000; i++){
77 assert i < 500 : "JPF failed to jump past idle loop";
78 }
79
80 System.out.println("Ok, jumped past loop");
81 }
82 }
83
84 }