Mercurial > hg > Members > kono > jpf-core
view src/tests/gov/nasa/jpf/test/mc/basic/CGReorderTest.java @ 0:61d41facf527
initial v8 import (history reset)
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
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date | Fri, 23 Jan 2015 10:14:01 -0800 |
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/* * Copyright (C) 2014, United States Government, as represented by the * Administrator of the National Aeronautics and Space Administration. * All rights reserved. * * The Java Pathfinder core (jpf-core) platform is licensed under the * Apache License, Version 2.0 (the "License"); you may not use this file except * in compliance with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0. * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package gov.nasa.jpf.test.mc.basic; import gov.nasa.jpf.ListenerAdapter; import gov.nasa.jpf.util.test.TestJPF; import gov.nasa.jpf.vm.ChoiceGenerator; import gov.nasa.jpf.vm.DoubleChoiceGenerator; import gov.nasa.jpf.vm.Instruction; import gov.nasa.jpf.vm.IntChoiceGenerator; import gov.nasa.jpf.vm.ThreadInfo; import gov.nasa.jpf.vm.VM; import gov.nasa.jpf.vm.SystemState; import gov.nasa.jpf.vm.Verify; import gov.nasa.jpf.vm.choice.DoubleChoiceFromList; import gov.nasa.jpf.vm.choice.IntIntervalGenerator; import java.util.Comparator; import org.junit.Test; /** * regression test for choice reordering APIs */ public class CGReorderTest extends TestJPF { public static class ReverseListener extends ListenerAdapter { @Override public void choiceGeneratorSet (VM vm, ChoiceGenerator<?> newCG){ if (newCG instanceof IntIntervalGenerator){ System.out.println("reverse choice enumeration order"); ((IntIntervalGenerator)newCG).reverse(); } } int lastVal = Integer.MAX_VALUE; @Override public void choiceGeneratorAdvanced (VM vm, ChoiceGenerator<?> currentCG){ if (currentCG instanceof IntIntervalGenerator){ int v = ((IntChoiceGenerator)currentCG).getNextChoice(); if (v >= lastVal){ fail("values not decreasing"); } lastVal = v; } } } @Test public void testReverse(){ if (verifyNoPropertyViolation("+listener=.test.mc.basic.CGReorderTest$ReverseListener")){ int x = Verify.getInt(0,4); System.out.println(x); } } public static class ReorderListener extends ListenerAdapter { ChoiceGenerator<?> reorderedCG; @Override public void choiceGeneratorRegistered (VM vm, ChoiceGenerator<?> nextCG, ThreadInfo ti, Instruction executedInsn){ // make sure we are not getting recursive (could also use setId()) if (nextCG instanceof DoubleChoiceFromList && nextCG != reorderedCG){ System.out.println("reorder choices"); reorderedCG = ((DoubleChoiceFromList)nextCG).reorder( new Comparator<Double>(){ @Override public int compare (Double d1, Double d2){ return (int) (d2 - d1); } }); System.out.println("replacing: " + nextCG); System.out.println("with: " + reorderedCG); SystemState ss = vm.getSystemState(); ss.removeNextChoiceGenerator(); ss.setNextChoiceGenerator(reorderedCG); } } double lastVal = Double.MAX_VALUE; @Override public void choiceGeneratorAdvanced (VM vm, ChoiceGenerator<?> currentCG){ if (currentCG instanceof DoubleChoiceGenerator){ double v = ((DoubleChoiceGenerator)currentCG).getNextChoice(); if (v >= lastVal){ fail("values not decreasing"); } lastVal = v; } } } @Test public void testReorder(){ if (verifyNoPropertyViolation("+listener=.test.mc.basic.CGReorderTest$ReorderListener")){ double x = Verify.getDoubleFromList(1.0, 2.0, 3.0, 4.0); System.out.println(x); } } }