Mercurial > hg > Members > kono > jpf-core
view src/tests/gov/nasa/jpf/test/mc/basic/FinalBreakTest.java @ 2:b920e6b1be83
second part of the jpf-statechart motivated event interface overhaul, providing dynamic (context specific) expansion of EventTrees from within EventChoiceGenerators. This adds a EventContext mechanism that can replace events on-the-fly during advance() (e.g. expand wildcard patterns)
this also included the refined 'vm.extend.transitions' property, which is now a list of TypeSpecs (glob notation plus bounds) for CG types that should be subject to transition extension. We also support CheckExtendTransition attrs for CGs, which can be used to dynamically mark CGs. Note that each matching CG is still tested for non-rescheduling single choices
small Type/FeatureSpec extension to make it applicable to java.lang.Class instances. There is no reason why we can't make use of this for native types
author | Peter Mehlitz <Peter.C.Mehlitz@nasa.gov> |
---|---|
date | Sat, 24 Jan 2015 18:19:08 -0800 |
parents | 61d41facf527 |
children |
line wrap: on
line source
/* * 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.util.test.TestJPF; import gov.nasa.jpf.vm.Verify; import java.lang.reflect.Field; import org.junit.Test; /** * test transition breaks on finals */ public class FinalBreakTest extends TestJPF { //--- breaks on instance finals static class InstanceFinal { static InstanceFinal global; final int a; final int b; InstanceFinal (){ Verify.println("T enter InstanceFinal ctor"); global = this; // leak this reference before construction a = 1; b = 1; Verify.println("T exit InstanceFinal ctor"); } } void startInstanceFinal(){ Thread t = new Thread(new Runnable() { @Override public void run () { Verify.println("T running"); InstanceFinal o = new InstanceFinal(); Thread.yield(); assertTrue( "constructed object corrupted", o.a == 1 && o.b == 1); Verify.println("T terminating"); } }); t.start(); } @Test public void testNoFinalBreak(){ if (verifyNoPropertyViolation("+vm.shared.skip_finals=true")){ startInstanceFinal(); InstanceFinal o = InstanceFinal.global; if (o != null){ assertTrue( "break between field inits", o.a == o.b); } } } @Test public void testFinalBreak(){ if (verifyAssertionError("+vm.shared.skip_finals=false")){ startInstanceFinal(); InstanceFinal o = InstanceFinal.global; if (o != null){ assertTrue( "break between field inits", o.a == o.b); } } } @Test public void testNoConstructedFinalBreak(){ if (verifyNoPropertyViolation("+vm.shared.skip_constructed_finals=true")){ startInstanceFinal(); InstanceFinal o = InstanceFinal.global; if (o != null){ try { Field f = InstanceFinal.class.getField("a"); f.setAccessible(true); // those should not break Verify.println("main now corrupting object"); f.setInt(o, 42); Verify.println("main now fixing object"); f.setInt(o, 1); } catch (Throwable x){ fail("unexpected exception: " + x); } } } } @Test public void testConstructedFinalBreak(){ if (verifyAssertionError("+vm.shared.skip_finals=false", "+vm.shared.skip_constructed_finals=false")){ startInstanceFinal(); InstanceFinal o = InstanceFinal.global; if (o != null){ try { Field f = InstanceFinal.class.getField("a"); f.setAccessible(true); // those should not break Verify.println("main now corrupting object"); f.setInt(o, 42); //Thread.yield(); // not required if Field.set() properly breaks Verify.println("main now fixing object"); f.setInt(o, 1); } catch (Throwable x){ throw new RuntimeException("caught " + x); } } } } //--- breaks on static finals final static Object o1 = new Object(); final static Object o2 = new Object(); static class StaticFinal { final static Object a = o1; final static Object b = o1; } void startStaticFinal(){ Thread t = new Thread(new Runnable() { @Override public void run () { Verify.println("T running"); Thread.yield(); assertTrue( "static finals corrupted", StaticFinal.a == StaticFinal.b); Verify.println("T terminating"); } }); t.start(); } @Test public void testNoStaticFinalBreak(){ if (verifyNoPropertyViolation("+vm.shared.skip_static_finals=true")){ startStaticFinal(); try { Field f = StaticFinal.class.getField("a"); f.setAccessible(true); // those should not break Verify.println("main now corrupting static fields"); f.set(null, o2); Verify.println("main now fixing static fields"); f.set(null, o1); } catch (Throwable x){ fail("unexpected exception: " + x); } } } @Test public void testStaticFinalBreak(){ if (verifyAssertionError("+vm.shared.skip_static_finals=false")){ startStaticFinal(); try { Field f = StaticFinal.class.getField("a"); f.setAccessible(true); // those should break Verify.println("main now corrupting static fields"); f.set(null, o2); Verify.println("main now fixing static fields"); f.set(null, o1); } catch (Throwable x){ x.printStackTrace(); throw new RuntimeException("caught " + x); } } } }