Mercurial > hg > Members > kono > jpf-core
view src/tests/gov/nasa/jpf/test/mc/data/EventGeneratorTest.java @ 20:b1790909ebb1
changed EventForest to derive from EventTree, which kills three birds with one
stone - guaranteeing there is a default tree, being able to initialize
a concrete forest with one method (createRoot), and being able to use both
EventTree and EventForest with a ForestCGFactory, i.e. without changes to the
config other than the event tree class name
slight refactoring of EventTree (createTree() -> createRoot()) to make it more
obvious how the result is used
author | Peter Mehlitz <pcmehlitz@gmail.com> |
---|---|
date | Mon, 06 Apr 2015 12:08:03 -0700 |
parents | b920e6b1be83 |
children |
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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.data; import gov.nasa.jpf.EventProducer; import gov.nasa.jpf.util.event.EventContext; import gov.nasa.jpf.util.event.Event; import gov.nasa.jpf.util.event.NoEvent; import gov.nasa.jpf.util.event.TestEventTree; import gov.nasa.jpf.util.test.TestJPF; import gov.nasa.jpf.vm.Verify; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import org.junit.Test; /** * regression test for EventGenerator based test drivers */ public class EventGeneratorTest extends TestJPF { //--------------------------------------------------------------------------------------- public static class SimpleTree extends TestEventTree { public SimpleTree (){ expected = new String[] { "a1b", "axxb" }; } @Override public Event createRoot() { return sequence( event("a"), alternatives( event("1"), iteration(2, event("x") ) ), event("b") ); } } @Test public void testSimpleTree(){ if (!isJPFRun()){ Verify.resetCounter(0); } if (verifyNoPropertyViolation("+event.tree.class=.test.mc.data.EventGeneratorTest$SimpleTree", "+log.info=event")){ EventProducer producer = new EventProducer(); StringBuilder sb = new StringBuilder(); while (producer.processNextEvent()){ sb.append(producer.getEventName()); } String trace = sb.toString(); System.out.print("got trace: "); System.out.println(trace); if (!producer.checkPath()){ fail("unexpected trace failure"); } if (producer.isCompletelyCovered()){ Verify.setCounter(0, 1); } } if (!isJPFRun()){ if (Verify.getCounter(0) != 1){ fail("unaccounted trace failure"); } } } //------------------------------------------------------------------------------------- public static class CombinationTree extends TestEventTree { public CombinationTree (){ printTree(); printPaths(); } @Override public Event createRoot() { Event[] options = { event("A"), event("B"), event("C") }; return anyCombination(options); } } @Test public void testAnyCombination (){ if (verifyNoPropertyViolation("+event.tree.class=.test.mc.data.EventGeneratorTest$CombinationTree", "+log.info=event")){ EventProducer producer = new EventProducer(); StringBuilder sb = new StringBuilder(); while (producer.processNextEvent()){ sb.append(producer.getEventName()); } } } //------------------------------------------------------------------------------------ public static class ExpandTree extends TestEventTree { public ExpandTree (){ printTree(); } @Override public Event createRoot(){ return sequence( event("a"), event("*"), event("<opt>"), event("b")); } } public static class MyEventContext implements EventContext { @Override public Event map (Event e){ String eventName = e.getName(); if (eventName.equals("*")){ System.out.println(" expanding " + eventName + " to [X,Y]"); List<Event> list = new ArrayList<Event>(); list.add( new Event("X")); list.add( new Event("Y")); return e.replaceWithAlternativesFrom(list); } else if (eventName.equals("<opt>")){ System.out.println(" skipping " + eventName); // that's effectively event removal without changing the structure of the tree return e.replaceWith(new NoEvent()); } return e; } } @Test public void testEventExpansion (){ if (verifyNoPropertyViolation("+event.tree.class=.test.mc.data.EventGeneratorTest$ExpandTree", "+event.context.class=.test.mc.data.EventGeneratorTest$MyEventContext", "+log.info=event")){ EventProducer producer = new EventProducer(); StringBuilder sb = new StringBuilder(); while (producer.processNextEvent()){ String eventName = producer.getEventName(); if (eventName != null){ sb.append(eventName); } } String trace = sb.toString(); System.out.print("--- got trace: "); System.out.println(trace); } } }