//
// Copyright (C) 2010 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.vm;
import org.junit.Test;
import gov.nasa.jpf.JPFException;
import gov.nasa.jpf.util.test.TestJPF;
/**
* unit test for ElementInfos
*/
public class ElementInfoTest extends TestJPF {
@Test
public void testPinDownCounter() {
DynamicElementInfo ei = new DynamicElementInfo();
assert !ei.isPinnedDown();
assert ei.incPinDown(); // should return true because this is the first inc
// count up to the max number
for (int i=2; i<= ElementInfo.ATTR_PINDOWN_MASK; i++){
assert !ei.incPinDown();
assert ei.getPinDownCount() == i;
}
// count exceeded, now it should throw a JPFException
try {
ei.incPinDown();
assert false : "incPinDown did not throw";
} catch (JPFException x){
System.out.println("caught " + x + ", getPinDownCount() = " + ei.getPinDownCount());
}
// count down to the first one
for (int i=ElementInfo.ATTR_PINDOWN_MASK-1; i>0; i--){
assert !ei.decPinDown() : "decPinDown() from " + ei.getPinDownCount() + " returned true";
assert ei.getPinDownCount() == i : "getPinDownCount() = " + ei.getPinDownCount() +
" != " + i;
}
assert ei.decPinDown(); // should return true now
assert ei.getPinDownCount() == 0 : "getPinDownCount() != 0";
}
@Test
public void testALiveFlag() {
DynamicElementInfo ei = new DynamicElementInfo();
assert !ei.isMarked();
ei.setAlive(true);
assert ei.isAlive(true);
assert !ei.isAlive(false);
assert ei.isMarkedOrAlive(true);
assert !ei.isMarkedOrAlive(false);
ei.setAlive(false);
assert !ei.isAlive(true);
assert ei.isAlive(false);
assert !ei.isMarkedOrAlive(true);
assert ei.isMarkedOrAlive(false);
}
@Test
public void testMarkedFlag() {
DynamicElementInfo ei = new DynamicElementInfo();
assert !ei.isMarked();
ei.setMarked();
assert ei.isMarked();
ei.setUnmarked();
assert !ei.isMarked();
}
@Test
public void testMarkedOrAlive() {
DynamicElementInfo ei = new DynamicElementInfo();
boolean[] boolValues = { true, false};
assert !ei.isMarked();
ei.setMarked();
assert ei.isMarked();
for(boolean b : boolValues) {
ei.setAlive(b);
assert ei.isMarkedOrAlive(true);
assert ei.isMarkedOrAlive(false);
}
ei.setUnmarked();
assert !ei.isMarked();
for(boolean b : boolValues) {
ei.setAlive(b);
assert ei.isMarkedOrAlive(true) == ei.isAlive(true);
assert ei.isMarkedOrAlive(false) == ei.isAlive(false);
}
}
}