//
// Copyright (C) 2009 United States Government as represented by the
// Administrator of the National Aeronautics and Space Administration
// (NASA). All Rights Reserved.
//
// This software is distributed under the NASA Open Source Agreement
// (NOSA), version 1.3. The NOSA has been approved by the Open Source
// Initiative. See the file NOSA-1.3-JPF at the top of the distribution
// directory tree for the complete NOSA document.
//
// THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
// KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
// LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
// SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
// A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
// THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
// DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//
package gov.nasa.jpf.test.mc.basic;
import org.junit.Test;
import gov.nasa.jpf.ListenerAdapter;
import gov.nasa.jpf.search.Search;
import gov.nasa.jpf.util.test.TestJPF;
import gov.nasa.jpf.vm.Verify;
/**
* test various Verify APIs
*/
public class VerifyTest extends TestJPF {
@Test public void testBreak () {
if (verifyNoPropertyViolation()) {
int y = 4;
int x = 0;
while (x != y) { // JPF should state match on the backjump
x = x + 1;
if (x > 3) {
x = 0;
}
Verify.breakTransition("testBreakTransition"); // this should eventually state match
}
assert false : "we should never get here";
}
}
@Test public void testProperties () {
if (verifyNoPropertyViolation("+hum=didum")) {
String target = Verify.getProperty("hum");
System.out.println("got hum=" + target);
assert target.equals("didum");
Verify.setProperties("foo=bar");
String p = Verify.getProperty("foo");
System.out.println("got foo=" + p);
assert "bar".equals(p);
}
}
@Test public void testChangeListener () {
if (verifyNoPropertyViolation()) {
Verify.setProperties("listener=gov.nasa.jpf.listener.StateSpaceAnalyzer"); // This used to cause a NullPointerException
}
}
@Test public void testGetBoolean () {
Verify.resetCounter(0);
Verify.resetCounter(1);
if (verifyNoPropertyViolation()) {
Verify.incrementCounter(Verify.getBoolean() ? 1 : 0);
} else {
assert Verify.getCounter(0) == 1;
assert Verify.getCounter(1) == 1;
}
}
@Test public void testGetBooleanFalseFirst () {
boolean falseFirst, value;
Verify.resetCounter(0);
if (verifyNoPropertyViolation()) {
falseFirst = Verify.getBoolean();
Verify.resetCounter(0);
value = Verify.getBoolean(falseFirst);
Verify.ignoreIf(Verify.getCounter(0) != 0);
Verify.incrementCounter(0);
assert value == !falseFirst;
}
}
/**
* This test ensures that stateBacktracked() is called even if the transistion
* is ignored. This is important for listeners that keep a state that must
* match the VM's state exactly and the state is updated in the middle of
* transitions. This is not possible if a backtrack happens on an ignored
* transition and the stateBacktracked is not called.
*/
@Test
public void backtrackNotificationAfterIgnore() {
if (verifyNoPropertyViolation("+listener+=,gov.nasa.jpf.test.mc.basic.VerifyTest$CountBacktrack",
"+vm.max_transition_length=MAX")) {
if (Verify.getBoolean(false)) {
Verify.ignoreIf(true);
}
} else {
// 2 for the Verify.getBoolean, 1 for <root>
assertEquals(3, CountBacktrack.getBacktrackedCount());
}
}
public static class CountBacktrack extends ListenerAdapter {
private static int m_backtrackedCount;
@Override
public void stateBacktracked(Search search) {
m_backtrackedCount++;
}
public static int getBacktrackedCount() {
return (m_backtrackedCount);
}
}
// <2do>... and many more to come
@Test
public void testBitSet() {
int id = 2;
if (verifyNoPropertyViolation()) {
// JPF execution only
Verify.setBitInBitSet(id, 3, true);
Verify.setBitInBitSet(id, 1, true);
} else {
// host VM execution only
assert Verify.getBitInBitSet(id, 1) == true;
assert Verify.getBitInBitSet(id, 2) == false;
assert Verify.getBitInBitSet(id, 3) == true;
}
}
}