Mercurial > hg > Members > kono > jpf-core
view src/tests/gov/nasa/jpf/test/mc/basic/OVHeapTest.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 org.junit.Test; import gov.nasa.jpf.util.test.TestJPF; import gov.nasa.jpf.vm.Verify; /** * unit test for OVHeap */ public class OVHeapTest extends TestJPF { static int getReferenceValue (Object o) { int h = System.identityHashCode(o); return h ^ 0xABCD; // revert the ABCD hash component } static void checkRef (String msg, String key, int ref) { System.out.printf("%s ,object: %s, ref: %d", msg, key, ref); int v = Verify.getValue(key); if (v == Verify.NO_VALUE) { Verify.putValue(key, ref); System.out.println(" new"); } else { if (v == ref) { System.out.println(" seen"); } else { fail("different reference values, had:" + v + ", new:" + ref); } } } static class X { String id; X (String id){ this.id = id; } } static class Y extends X { Y (String id){ super(id); } } X allocX (String id) { return new X(id); } @Test public void testSGOIDs() { if (verifyNoPropertyViolation("+vm.heap.class=.vm.OVHeap")) { Thread t = new Thread() { @Override public void run() { Class<?> cls = X.class; checkRef("from T ", "X.class", getReferenceValue(cls)); X x1 = new X("t-x1"); checkRef("from T ", x1.id, getReferenceValue(x1)); Thread.yield(); // CG #3 Y y1 = new Y("t-y1"); checkRef("from T ", y1.id, getReferenceValue(y1)); } }; t.start(); // CG #1 Class<?> clsY = Y.class; checkRef("from M ", "Y.class", getReferenceValue(clsY)); Class<?> clsX = X.class; checkRef("from M ", "X.class", getReferenceValue(clsX)); int n = Verify.getInt(1, 3); // CG #2 System.out.println("-- M next X[] arraysize = " + n); X[] xs = new X[n]; for (int i=0; i<xs.length; i++) { xs[i] = new X("xs-" + i); checkRef("from M ", xs[i].id, getReferenceValue(xs[i])); } Y y1 = new Y("m-y1"); checkRef("from M ", y1.id, getReferenceValue(y1)); X x1 = new Y("m-x1"); checkRef("from M ", x1.id, getReferenceValue(x1)); } } }