public ExecutionResult getLastRegressionExecutionResult() {
return theSameTestForTheOtherClassLoader.getLastExecutionResult();
}
@Override
public boolean doSearch(
TestChromosome individual, LocalSearchObjective<TestChromosome> objective) {
logger.info("Test before local search: " + individual.getTestCase().toCode());
boolean improved = false;
// Only apply local search up to the point where an exception was thrown
// TODO: Check whether this conflicts with test expansion
int lastPosition = individual.size() - 1;
if (individual.getLastExecutionResult() != null && !individual.isChanged()) {
Integer lastPos = individual.getLastExecutionResult().getFirstPositionOfThrownException();
if (lastPos != null) lastPosition = lastPos.intValue();
}
TestCase test = individual.getTestCase();
// We count down to make the code work when lines are
// added during the search (see NullReferenceSearch).
for (int i = lastPosition; i >= 0; i--) {
if (LocalSearchBudget.getInstance().isFinished()) break;
if (objective.isDone()) {
break;
}
if (i >= individual.size()) {
logger.warn("Test size decreased unexpectedly during local search, aborting local search");
logger.warn(individual.getTestCase().toCode());
break;
}
final Class<?> targetClass = Properties.getTargetClassAndDontInitialise();
final Statement statement = test.getStatement(i);
if (!test.hasReferences(statement.getReturnValue())
&& !statement.getReturnClass().equals(targetClass)) {
logger.info(
"Return value of statement "
+ i
+ " is not referenced and not SUT, not doing local search");
continue;
}
StatementLocalSearch search = StatementLocalSearch.getLocalSearchFor(statement);
if (search != null) {
logger.info(
"Applying local search of type "
+ search.getClass()
+ " to statement "
+ statement
+ " / "
+ individual.getTestCase().getStatement(i));
if (search.doSearch(individual, i, (LocalSearchObjective<TestChromosome>) objective)) {
improved = true;
}
// i = s.getPosition();
logger.debug(
"Old position was: " + i + ", adjusting to: " + (i + search.getPositionDelta()));
i += search.getPositionDelta();
test = individual.getTestCase();
} else {
/*
* No statement local search has been produced for this
* statement. Skipping.
*/
continue;
}
}
LocalSearchBudget.getInstance().countLocalSearchOnTest();
// logger.warn("Test after local search: " +
// individual.getTestCase().toCode());
// Return true iif search was successful
return improved;
// TODO: Handle arrays in local search
// TODO: mutating an int might have an effect on array lengths
}
@Override
public ExecutionResult getLastExecutionResult() {
return theTest.getLastExecutionResult();
}
// Not working yet
// @Override
public double getFitnessAlternative(
AbstractTestSuiteChromosome<? extends ExecutableChromosome> individual) {
TestSuiteChromosome suite = (TestSuiteChromosome) individual;
List<ExecutionResult> results = runTestSuite(suite);
if (DefUseCoverageFactory.detectAliasingGoals(results)) {
logger.debug("New total number of goals: " + goals.size());
totalGoals = initTotalGoals();
for (DefUsePairType type : totalGoals.keySet()) {
logger.info(type + ":" + totalGoals.get(type));
}
}
Map<Definition, Set<TestChromosome>> passedDefinitions =
new HashMap<Definition, Set<TestChromosome>>();
Map<Definition, Integer> passedDefinitionCount = new HashMap<Definition, Integer>();
Map<String, Set<TestChromosome>> executedMethods = new HashMap<String, Set<TestChromosome>>();
Map<String, Integer> executedMethodsCount = new HashMap<String, Integer>();
for (Definition def : maxDefinitionCount.keySet()) {
passedDefinitionCount.put(def, 0);
}
for (String methodName : maxMethodCount.keySet()) {
executedMethodsCount.put(methodName, 0);
}
for (TestChromosome test : suite.getTestChromosomes()) {
ExecutionResult result = test.getLastExecutionResult();
if (result.hasTimeout()) {
logger.debug("Skipping test with timeout");
double fitness = goals.size() * 100;
updateIndividual(this, individual, fitness);
suite.setCoverage(this, 0.0);
logger.debug("Test case has timed out, setting fitness to max value " + fitness);
return fitness;
}
for (Entry<Integer, Integer> entry :
result.getTrace().getDefinitionExecutionCount().entrySet()) {
Definition def = DefUsePool.getDefinitionByDefId(entry.getKey());
if (def == null) {
logger.warn("Could not find def " + entry.getKey());
continue;
}
if (!passedDefinitions.containsKey(def))
passedDefinitions.put(def, new HashSet<TestChromosome>());
if (!passedDefinitionCount.containsKey(def)) {
// logger.warn("Weird, definition is not known: " + def);
passedDefinitionCount.put(def, 0);
}
passedDefinitions.get(def).add(test);
passedDefinitionCount.put(def, passedDefinitionCount.get(def) + entry.getValue());
}
for (Entry<String, Integer> entry : result.getTrace().getMethodExecutionCount().entrySet()) {
if (executedMethodsCount.containsKey(entry.getKey()))
executedMethodsCount.put(
entry.getKey(), executedMethodsCount.get(entry.getKey()) + entry.getValue());
if (!executedMethods.containsKey(entry.getKey())) {
executedMethods.put(entry.getKey(), new HashSet<TestChromosome>());
}
executedMethods.get(entry.getKey()).add(test);
}
/*
for (Integer id : result.getTrace().getPassedDefIDs()) {
Definition def = DefUsePool.getDefinitionByDefId(id);
if (!passedDefinitions.containsKey(def))
passedDefinitions.put(def, new HashSet<TestChromosome>());
passedDefinitions.get(def).add(test);
passedDefinitionCount.put(def, passedDefinitionCount.get(def) + 1);
}
*/
}
// 1. Need to reach each definition
double fitness = branchFitness.getFitness(individual);
// logger.info("Branch fitness: " + fitness);
// 3. For all covered defs, calculate minimal use distance
// Set<DefUseCoverageTestFitness> coveredGoalsSet =
// DefUseExecutionTraceAnalyzer.getCoveredGoals(results);
Set<DefUseCoverageTestFitness> coveredGoalsSet =
new HashSet<
DefUseCoverageTestFitness>(); // DefUseExecutionTraceAnalyzer.getCoveredGoals(results);
initCoverageMaps();
Set<Definition> notFullyCoveredDefs = new HashSet<Definition>();
boolean methodIsNotFullyCovered = false;
for (DefUseCoverageTestFitness goal : goals) {
if (coveredGoalsSet.contains(goal)) {
continue;
}
double goalFitness = 2.0;
Set<TestChromosome> coveringTests = new HashSet<TestChromosome>();
if (goal.isParameterGoal()) {
String methodKey =
goal.getGoalUse().getClassName() + "." + goal.getGoalUse().getMethodName();
if (executedMethods.containsKey(methodKey)) {
coveringTests.addAll(executedMethods.get(methodKey));
}
} else {
if (passedDefinitions.containsKey(goal.getGoalDefinition())) {
coveringTests.addAll(passedDefinitions.get(goal.getGoalDefinition()));
}
}
if (coveringTests.isEmpty()) {
logger.debug("No tests cover " + goal);
} else {
logger.debug("Checking " + coveringTests.size() + " tests covering " + goal);
}
// for (TestChromosome test : passedDefinitions.get(goal.getGoalDefinition())) {
for (TestChromosome test : coveringTests) {
// for (TestChromosome test : suite.getTestChromosomes()) {
ExecutionResult result = test.getLastExecutionResult();
DefUseFitnessCalculator calculator = new DefUseFitnessCalculator(goal, test, result);
// double resultFitness = goal.getFitness(test, result);
double resultFitness = calculator.calculateDUFitness();
if (resultFitness < goalFitness) goalFitness = resultFitness;
if (goalFitness == 0.0) {
result.test.addCoveredGoal(goal);
coveredGoalsSet.add(goal);
break;
}
}
if (goalFitness > 0.0) {
if (goal.isParameterGoal()) notFullyCoveredDefs.add(goal.getGoalDefinition());
else methodIsNotFullyCovered = true;
}
fitness += goalFitness;
}
// 2. Need to execute each definition X times
// TODO ...unless all defuse pairs are covered?
for (Entry<Definition, Integer> defCount : maxDefinitionCount.entrySet()) {
if (notFullyCoveredDefs.contains(defCount.getKey())) {
int executionCount = passedDefinitionCount.get(defCount.getKey());
int max = defCount.getValue();
if (executionCount < max) {
fitness += normalize(max - executionCount);
}
}
}
if (methodIsNotFullyCovered) {
for (Entry<String, Integer> methodCount : maxMethodCount.entrySet()) {
int executionCount = executedMethodsCount.get(methodCount.getKey());
int max = methodCount.getValue();
if (executionCount < max) {
fitness += normalize(max - executionCount);
}
}
}
countCoveredGoals(coveredGoalsSet);
trackCoverageStatistics(suite);
updateIndividual(this, individual, fitness);
int coveredGoalCount = countCoveredGoals();
int totalGoalCount = countTotalGoals();
if (fitness == 0.0 && coveredGoalCount < totalGoalCount)
throw new IllegalStateException(
"Fitness 0 implies 100% coverage "
+ coveredGoalCount
+ " / "
+ totalGoals
+ " (covered / total)");
return fitness;
}
