Mercurial > hg > Members > kono > jpf-core
diff src/tests/gov/nasa/jpf/test/mc/data/NativeStateHolderTest.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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/tests/gov/nasa/jpf/test/mc/data/NativeStateHolderTest.java Fri Jan 23 10:14:01 2015 -0800 @@ -0,0 +1,95 @@ +/* + * 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.data; + +import gov.nasa.jpf.ListenerAdapter; +import gov.nasa.jpf.search.Search; +import gov.nasa.jpf.util.test.TestJPF; +import gov.nasa.jpf.vm.ChoiceGenerator; +import gov.nasa.jpf.vm.Instruction; +import gov.nasa.jpf.vm.NativeStateHolder; +import gov.nasa.jpf.vm.ThreadInfo; +import gov.nasa.jpf.vm.VM; +import gov.nasa.jpf.vm.Verify; +import org.junit.Test; + +/** + * regression test for NativeStateHolder API + */ +public class NativeStateHolderTest extends TestJPF { + + public static class NSHListener extends ListenerAdapter implements NativeStateHolder { + + // note that we don't restore nativeState, i.e. once it has reached the threshold + // the search should terminate + + int nativeState; + int n; + + @Override + public void vmInitialized (VM vm){ + vm.getSerializer().addNativeStateHolder(this); + System.out.println("native state holder registered"); + } + + @Override + public void choiceGeneratorRegistered (VM vm, ChoiceGenerator<?> cg, ThreadInfo ti, Instruction insn){ + n++; + System.out.print("transition: " + n); + + if (nativeState < 5){ + nativeState++; + System.out.println(", nativeState modified: " + nativeState); + + } else { + System.out.println(", no nativeState change"); + if (n > 10){ + fail("state leak despite constant nativesState"); + } + } + } + + @Override + public void stateAdvanced (Search search){ + System.out.println("cg advanced, isNewState: " + search.isNewState()); + } + + @Override + public void stateBacktracked (Search search){ + System.out.println("state backtracked"); + } + + + @Override + public int getHash() { + return nativeState; + } + } + + + @Test + public void testNativeStateHolder(){ + if (verifyNoPropertyViolation("+listener=" + getClass().getName() + "$NSHListener")){ + while (true){ + Verify.breakTransition("cycle"); + } + } + } + + +}