/**
* {@inheritDoc}
*
* <p>A different splitting point is selected for each individual
*/
@Override
public void crossOver(Chromosome parent1, Chromosome parent2) throws ConstructionFailedException {
if (parent1.size() < 2 || parent2.size() < 2) {
return;
}
// Choose a position in the middle
int point1 = Randomness.nextInt(parent1.size() - 1) + 1;
int point2 = Randomness.nextInt(parent2.size() - 1) + 1;
Chromosome t1 = parent1.clone();
Chromosome t2 = parent2.clone();
parent1.crossOver(t2, point1, point2);
parent2.crossOver(t1, point2, point1);
}
@Override
public void randomize() {
String url = Randomness.choice(tc.getAccessedEnvironment().getViewOfRemoteURLs());
if (url != null) {
setValue(new EvoSuiteURL(url));
} else {
setValue(null);
}
}
public static GenericClass selectClass(List<GenericClass> candidates) {
double r = Randomness.nextDouble();
double d =
Properties.RANK_BIAS
- Math.sqrt(
(Properties.RANK_BIAS * Properties.RANK_BIAS)
- (4.0 * (Properties.RANK_BIAS - 1.0) * r));
int length = candidates.size();
d = d / 2.0 / (Properties.RANK_BIAS - 1.0);
int index = (int) (length * d);
return candidates.get(index);
}
@Test
public void testDSEMultiObjective() {
Randomness.setSeed(1545420);
// should it be trivial for DSE ?
Properties.SEARCH_BUDGET = 20;
Properties.TIMEOUT = Integer.MAX_VALUE;
Properties.CONCOLIC_TIMEOUT = Integer.MAX_VALUE;
Properties.LOCAL_SEARCH_RATE = 1;
Properties.DSE_PROBABILITY = 1.0;
// Properties.LOCAL_SEARCH_BUDGET_TYPE = LocalSearchBudgetType.TIME;
Properties.LOCAL_SEARCH_BUDGET_TYPE = LocalSearchBudgetType.TESTS;
Properties.LOCAL_SEARCH_BUDGET = 5;
Properties.CRITERION =
new Criterion[] {
Criterion.LINE,
Criterion.BRANCH,
Criterion.EXCEPTION,
Criterion.WEAKMUTATION,
Criterion.OUTPUT,
Criterion.METHOD
};
Properties.STOPPING_CONDITION = StoppingCondition.MAXTIME;
EvoSuite evosuite = new EvoSuite();
String targetClass = DseBar.class.getCanonicalName();
Properties.TARGET_CLASS = targetClass;
Properties.DSE_PROBABILITY = 1.0; // force using only DSE, no LS
String[] command = new String[] {"-generateSuite", "-class", targetClass};
Object result = evosuite.parseCommandLine(command);
GeneticAlgorithm<?> ga = getGAFromResult(result);
TestSuiteChromosome best = (TestSuiteChromosome) ga.getBestIndividual();
System.out.println("EvolvedTestSuite:\n" + best);
}
private boolean addAssignableClass(
TypeVariable<?> typeVariable, Map<TypeVariable<?>, Type> typeMap) {
Set<Class<?>> classes = TestCluster.getInstance().getAnalyzedClasses();
Set<Class<?>> assignableClasses = new LinkedHashSet<Class<?>>();
for (Class<?> clazz : classes) {
if (!TestUsageChecker.canUse(clazz)) continue;
GenericClass genericClass = new GenericClass(clazz).getWithWildcardTypes();
if (!genericClass.satisfiesBoundaries(typeVariable, typeMap)) {
logger.debug("Not assignable: " + clazz);
} else {
logger.debug("Assignable");
assignableClasses.add(clazz);
}
}
for (Type t : typeMap.values()) {
if (t instanceof WildcardType) continue; // TODO: For now.
Class<?> clazz = GenericTypeReflector.erase(t);
if (!TestUsageChecker.canUse(GenericTypeReflector.erase(clazz))) continue;
GenericClass genericClass = new GenericClass(clazz).getWithWildcardTypes();
if (!genericClass.satisfiesBoundaries(typeVariable, typeMap)) {
logger.debug("Not assignable: " + clazz);
} else {
logger.debug("Assignable");
assignableClasses.add(clazz);
}
}
/*
for (Type t : typeVariable.getBounds()) {
if (typeMap.containsKey(t))
t = typeMap.get(t);
Class<?> clazz = GenericTypeReflector.erase(t);
logger.debug("Checking bound: " + t);
if (!TestClusterGenerator.canUse(clazz))
continue;
GenericClass genericClass = new GenericClass(t);
//if (genericClass.hasTypeVariables()) {
logger.debug("Has type variables: " + genericClass
+ ", checking wildcard version with type map " + typeMap);
GenericClass wildcardClass = genericClass.getWithWildcardTypes();
//if (!wildcardClass.satisfiesBoundaries(typeVariable, typeMap)) {
// logger.debug("Not assignable: " + clazz);
//} else {
// logger.debug("Assignable");
assignableClasses.add(clazz);
//}
//} else {
// logger.debug("Adding directly: " + genericClass);
// assignableClasses.add(genericClass.getRawClass());
// classMap.put(genericClass, 10);
//}
}
*/
logger.debug(
"Found assignable classes for type variable "
+ typeVariable
+ ": "
+ assignableClasses.size());
if (!assignableClasses.isEmpty()) {
Class<?> clazz = Randomness.choice(assignableClasses);
GenericClass castClass = new GenericClass(clazz);
logger.debug("Adding cast class " + castClass);
classMap.put(castClass, 10);
return true;
} else {
InheritanceTree inheritanceTree = DependencyAnalysis.getInheritanceTree();
Set<Class<?>> boundCandidates = new LinkedHashSet<Class<?>>();
for (Type bound : typeVariable.getBounds()) {
Class<?> rawBound = GenericTypeReflector.erase(bound);
boundCandidates.add(rawBound);
logger.debug("Getting concrete classes for " + rawBound);
boundCandidates.addAll(ConcreteClassAnalyzer.getConcreteClasses(rawBound, inheritanceTree));
}
for (Class<?> clazz : boundCandidates) {
if (!TestUsageChecker.canUse(clazz)) continue;
boolean isAssignable = true;
for (Type bound : typeVariable.getBounds()) {
if (GenericTypeReflector.erase(bound).equals(Enum.class)) {
if (clazz.isEnum()) continue;
}
if (!GenericClass.isAssignable(bound, clazz)) {
isAssignable = false;
logger.debug("Not assignable: " + clazz + " to bound " + bound);
break;
}
if (bound instanceof ParameterizedType) {
if (Arrays.asList(((ParameterizedType) bound).getActualTypeArguments())
.contains(typeVariable)) {
isAssignable = false;
break;
}
}
}
if (isAssignable) {
assignableClasses.add(clazz);
}
}
logger.debug(
"After adding bounds, found "
+ assignableClasses.size()
+ " assignable classes for type variable "
+ typeVariable
+ ": "
+ assignableClasses);
if (!assignableClasses.isEmpty()) {
// TODO: Add all classes?
// for(Class<?> clazz : assignableClasses) {
// GenericClass castClass = new GenericClass(clazz);
// logger.debug("Adding cast class " + castClass);
// classMap.put(castClass, 10);
// }
Class<?> clazz = Randomness.choice(assignableClasses);
GenericClass castClass = new GenericClass(clazz);
logger.debug("Adding cast class " + castClass);
classMap.put(castClass, 10);
return true;
}
}
return false;
}
private boolean addAssignableClass(
WildcardType wildcardType, Map<TypeVariable<?>, Type> typeMap) {
Set<Class<?>> classes = TestCluster.getInstance().getAnalyzedClasses();
Set<Class<?>> assignableClasses = new LinkedHashSet<Class<?>>();
for (Class<?> clazz : classes) {
if (!TestUsageChecker.canUse(clazz)) continue;
GenericClass genericClass = new GenericClass(clazz).getWithWildcardTypes();
if (!genericClass.satisfiesBoundaries(wildcardType, typeMap)) {
logger.debug("Not assignable: " + clazz);
} else {
logger.debug("Assignable");
assignableClasses.add(clazz);
}
}
for (Type t : typeMap.values()) {
if (t instanceof WildcardType) continue; // TODO: For now.
Class<?> clazz = GenericTypeReflector.erase(t);
if (!TestUsageChecker.canUse(GenericTypeReflector.erase(clazz))) continue;
GenericClass genericClass = new GenericClass(clazz).getWithWildcardTypes();
if (!genericClass.satisfiesBoundaries(wildcardType, typeMap)) {
logger.debug("Not assignable: " + clazz);
} else {
logger.debug("Assignable");
assignableClasses.add(clazz);
}
}
for (Type t : wildcardType.getUpperBounds()) {
if (typeMap.containsKey(t)) t = typeMap.get(t);
Class<?> clazz = GenericTypeReflector.erase(t);
logger.debug("Checking bound: " + t);
if (!TestUsageChecker.canUse(clazz)) continue;
GenericClass genericClass = new GenericClass(t);
if (genericClass.hasTypeVariables()) {
logger.debug("Has type variables: " + genericClass);
GenericClass wildcardClass = genericClass.getWithWildcardTypes();
if (!wildcardClass.satisfiesBoundaries(wildcardType, typeMap)) {
logger.debug("Not assignable: " + clazz);
} else {
logger.debug("Assignable");
assignableClasses.add(clazz);
}
} else {
logger.debug("Adding directly: " + genericClass);
assignableClasses.add(genericClass.getRawClass());
classMap.put(genericClass, 10);
}
}
logger.debug(
"Found assignable classes for wildcardtype "
+ wildcardType
+ ": "
+ assignableClasses.size());
if (!assignableClasses.isEmpty()) {
Class<?> clazz = Randomness.choice(assignableClasses);
GenericClass castClass = new GenericClass(clazz);
logger.debug("Adding cast class " + castClass);
classMap.put(castClass, 10);
return true;
}
return false;
}
private void minimizeAssertions(
StructuredTestCase test,
ExecutionResult origResult,
Map<Mutation, ExecutionResult> mutationResults) {
Set<Integer> killedMutants = new HashSet<Integer>();
for (int position = test.size() - 1; position >= test.getFirstExerciseStatement(); position--) {
Statement statement = test.getStatement(position);
if (!statement.hasAssertions()) continue;
List<Assertion> assertions = new ArrayList<Assertion>(statement.getAssertions());
Map<Integer, Set<Integer>> killMap = getKillMap(assertions, mutationResults);
int num = 0;
// This is to make sure we prefer assertions on return values.
// TODO: Refactor
for (Assertion assertion : assertions) {
if (assertion instanceof PrimitiveAssertion) {
boolean killsNew = false;
for (Integer mutationId : killMap.get(num)) {
if (!killedMutants.contains(mutationId)) {
killsNew = true;
break;
}
}
if (!killsNew) {
statement.removeAssertion(assertion);
} else {
killedMutants.addAll(killMap.get(num));
}
}
num++;
}
for (int i = 0; i < assertions.size(); i++) {
if (!killMap.containsKey(i)) {
statement.removeAssertion(assertions.get(i));
continue;
}
Assertion assertion = assertions.get(i);
boolean killsNew = false;
for (Integer mutationId : killMap.get(i)) {
if (!killedMutants.contains(mutationId)) {
killsNew = true;
break;
}
}
if (!killsNew) {
statement.removeAssertion(assertion);
} else {
killedMutants.addAll(killMap.get(i));
}
}
// If we have no assertions, then add...something?
if (!statement.hasAssertions()) {
boolean addedPrimitive = false;
for (Assertion assertion : assertions) {
if (assertion instanceof PrimitiveAssertion) {
statement.addAssertion(assertion);
addedPrimitive = true;
}
}
if (!addedPrimitive) statement.addAssertion(Randomness.choice(assertions));
}
}
}