/** {@inheritDoc} */
@Override
public double getFitness(TestChromosome individual, ExecutionResult result) {
approach = lcsaj.length();
double savedFitness = approach;
logger.debug("Evaluating fitness for " + lcsaj);
// for all method calls:
for (MethodCall call : result.getTrace().getMethodCalls()) {
double currentFitness = approach;
// if method call is the method of the LCSAJ
if (call.className.equals(lcsaj.getClassName())
&& call.methodName.equals(lcsaj.getMethodName())) {
int lcsaj_position = 0;
boolean found = false;
logger.debug(
"New call: " + call.className + "." + call.methodName + " " + call.branchTrace.size());
// For each branch that was passed in this call
for (int i = 0; i < call.branchTrace.size(); i++) {
int actualBranch = call.branchTrace.get(i);
int lcsaj_branchID = lcsaj.getBranchID(lcsaj_position);
double false_distance = call.falseDistanceTrace.get(i);
double true_distance = call.trueDistanceTrace.get(i);
logger.debug(
"Current branch: "
+ call.branchTrace.get(i)
+ ": "
+ true_distance
+ "/"
+ false_distance
+ ", need "
+ lcsaj.getBranchID(lcsaj_position));
if (actualBranch == lcsaj_branchID) {
if (lcsaj_position == 0) found = true;
currentFitness -= 1.0;
if (actualBranch == lcsaj_finalBranchID) {
currentFitness += normalize(true_distance);
if (currentFitness < savedFitness) {
savedFitness = currentFitness;
}
if (lcsaj_position > lcsaj.getdPositionReached())
lcsaj.setPositionReached(lcsaj_position);
lcsaj_position = 0;
currentFitness = approach;
continue;
} else if (false_distance > 0) {
logger.debug("Took a wrong turn with false distance " + false_distance);
currentFitness += normalize(false_distance);
if (currentFitness < savedFitness) savedFitness = currentFitness;
if (lcsaj_position > lcsaj.getdPositionReached())
lcsaj.setPositionReached(lcsaj_position);
lcsaj_position = 0;
currentFitness = approach;
continue;
}
lcsaj_position++;
logger.debug("LCSAJ position: " + lcsaj_position);
} else {
if (LCSAJPool.isLCSAJBranch(
BranchPool.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT())
.getBranch(actualBranch))) {
// logger.debug("Skipping pseudo branch");
continue;
}
if (lcsaj_position > lcsaj.getdPositionReached())
lcsaj.setPositionReached(lcsaj_position);
lcsaj_position = 0;
currentFitness = approach;
}
// }
}
if (Properties.STRATEGY != Strategy.EVOSUITE) {
if (!found) {
logger.debug(
"Looking for approach to initial branch: "
+ lcsaj.getStartBranch()
+ " with ID "
+ lcsaj.getStartBranch().getActualBranchId());
BranchCoverageGoal goal =
new BranchCoverageGoal(
lcsaj.getStartBranch(), true, lcsaj.getClassName(), lcsaj.getMethodName());
BranchCoverageTestFitness dependentFitness = new BranchCoverageTestFitness(goal);
assert (currentFitness == approach);
currentFitness += dependentFitness.getFitness(individual, result);
if (currentFitness < savedFitness) savedFitness = currentFitness;
// logger.debug("Initial branch has distance: "
// + dependentFitness.getFitness(individual, result));
// logger.debug("Dependencies of initial branch: ");
// for (Branch branch : lcsaj.getStartBranch().getAllControlDependentBranches()) {
// logger.debug(branch);
// }
logger.debug("Resulting fitness: " + savedFitness);
} else {
logger.debug(
"Call does not match: "
+ call.className
+ "."
+ call.methodName
+ " "
+ call.branchTrace.size());
}
}
}
}
updateIndividual(this, individual, savedFitness);
return savedFitness;
}
/* (non-Javadoc)
* @see org.evosuite.testcase.TestFitnessFunction#getTargetMethod()
*/
@Override
public String getTargetMethod() {
return lcsaj.getMethodName();
}