/**
* Copyright (C) 2010-2017 Gordon Fraser, Andrea Arcuri and EvoSuite
* contributors
*
* This file is part of EvoSuite.
*
* EvoSuite is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation, either version 3.0 of the License, or
* (at your option) any later version.
*
* EvoSuite is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with EvoSuite. If not, see <http://www.gnu.org/licenses/>.
*/
package org.evosuite.coverage.io.output;
import static org.evosuite.coverage.io.IOCoverageConstants.ARRAY_EMPTY;
import static org.evosuite.coverage.io.IOCoverageConstants.ARRAY_NONEMPTY;
import static org.evosuite.coverage.io.IOCoverageConstants.BOOL_FALSE;
import static org.evosuite.coverage.io.IOCoverageConstants.BOOL_TRUE;
import static org.evosuite.coverage.io.IOCoverageConstants.CHAR_ALPHA;
import static org.evosuite.coverage.io.IOCoverageConstants.CHAR_DIGIT;
import static org.evosuite.coverage.io.IOCoverageConstants.CHAR_OTHER;
import static org.evosuite.coverage.io.IOCoverageConstants.NUM_NEGATIVE;
import static org.evosuite.coverage.io.IOCoverageConstants.NUM_POSITIVE;
import static org.evosuite.coverage.io.IOCoverageConstants.NUM_ZERO;
import static org.evosuite.coverage.io.IOCoverageConstants.REF_NONNULL;
import static org.evosuite.coverage.io.IOCoverageConstants.REF_NULL;
import static org.evosuite.coverage.io.IOCoverageConstants.STRING_EMPTY;
import static org.evosuite.coverage.io.IOCoverageConstants.STRING_NONEMPTY;
import org.evosuite.Properties;
import org.evosuite.TestGenerationContext;
import org.evosuite.assertion.CheapPurityAnalyzer;
import org.evosuite.assertion.Inspector;
import org.evosuite.assertion.InspectorManager;
import org.evosuite.coverage.MethodNameMatcher;
import org.evosuite.graphs.cfg.BytecodeInstructionPool;
import org.evosuite.setup.TestClusterUtils;
import org.evosuite.setup.TestUsageChecker;
import org.evosuite.testsuite.AbstractFitnessFactory;
import org.objectweb.asm.Type;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
/**
* @author Jose Miguel Rojas
*/
public class OutputCoverageFactory extends AbstractFitnessFactory<OutputCoverageTestFitness> {
private static final Logger logger = LoggerFactory.getLogger(OutputCoverageFactory.class);
/*
* (non-Javadoc)
*
* @see
* org.evosuite.coverage.TestCoverageFactory#getCoverageGoals()
*/
/**
* {@inheritDoc}
*/
@Override
public List<OutputCoverageTestFitness> getCoverageGoals() {
List<OutputCoverageTestFitness> goals = new ArrayList<OutputCoverageTestFitness>();
long start = System.currentTimeMillis();
String targetClass = Properties.TARGET_CLASS;
final MethodNameMatcher matcher = new MethodNameMatcher();
for (String className : BytecodeInstructionPool.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT()).knownClasses()) {
if (!(targetClass.equals("") || className.endsWith(targetClass)))
continue;
for (Method method : TestClusterUtils.getClass(className).getDeclaredMethods()) {
String methodName = method.getName() + Type.getMethodDescriptor(method);
if (!TestUsageChecker.canUse(method) || !matcher.methodMatches(methodName) || methodName.equals("hashCode()I"))
continue;
logger.info("Adding goals for method " + className + "." + methodName);
Type returnType = Type.getReturnType(method);
switch (returnType.getSort()) {
case Type.BOOLEAN:
goals.add(createGoal(className, methodName, returnType, BOOL_TRUE));
goals.add(createGoal(className, methodName, returnType, BOOL_FALSE));
break;
case Type.CHAR:
goals.add(createGoal(className, methodName, returnType, CHAR_ALPHA));
goals.add(createGoal(className, methodName, returnType, CHAR_DIGIT));
goals.add(createGoal(className, methodName, returnType, CHAR_OTHER));
break;
case Type.BYTE:
case Type.SHORT:
case Type.INT:
case Type.FLOAT:
case Type.LONG:
case Type.DOUBLE:
goals.add(createGoal(className, methodName, returnType, NUM_NEGATIVE));
goals.add(createGoal(className, methodName, returnType, NUM_ZERO));
goals.add(createGoal(className, methodName, returnType, NUM_POSITIVE));
break;
case Type.ARRAY:
goals.add(createGoal(className, methodName, returnType, REF_NULL));
goals.add(createGoal(className, methodName, returnType, ARRAY_EMPTY));
goals.add(createGoal(className, methodName, returnType, ARRAY_NONEMPTY));
break;
case Type.OBJECT:
goals.add(createGoal(className, methodName, returnType, REF_NULL));
//goals.add(new OutputCoverageTestFitness(new OutputCoverageGoal(className, methodName, returnType.toString(), REF_NONNULL)));
if (returnType.getClassName().equals("java.lang.String")) {
goals.add(createGoal(className, methodName, returnType, STRING_EMPTY));
goals.add(createGoal(className, methodName, returnType, STRING_NONEMPTY));
break;
}
boolean observerGoalsAdded = false;
Class<?> returnClazz = method.getReturnType();
for(Inspector inspector : InspectorManager.getInstance().getInspectors(returnClazz)) {
String insp = inspector.getMethodCall() + Type.getMethodDescriptor(inspector.getMethod());
Type t = Type.getReturnType(insp);
if (t.getSort() == Type.BOOLEAN) {
goals.add(createGoal(className, methodName, returnType, REF_NONNULL + ":" + returnType.getClassName() + ":" + insp + ":" + BOOL_TRUE));
goals.add(createGoal(className, methodName, returnType, REF_NONNULL + ":" + returnType.getClassName() + ":" + insp + ":" + BOOL_FALSE));
observerGoalsAdded = true;
} else if (Arrays.asList(new Integer[]{Type.BYTE, Type.SHORT, Type.INT, Type.FLOAT, Type.LONG, Type.DOUBLE}).contains(t.getSort())) {
goals.add(createGoal(className, methodName, returnType, REF_NONNULL + ":" + returnType.getClassName() + ":" + insp + ":" + NUM_NEGATIVE));
goals.add(createGoal(className, methodName, returnType, REF_NONNULL + ":" + returnType.getClassName() + ":" + insp + ":" + NUM_ZERO));
goals.add(createGoal(className, methodName, returnType, REF_NONNULL + ":" + returnType.getClassName() + ":" + insp + ":" + NUM_POSITIVE));
observerGoalsAdded = true;
}
}
if (!observerGoalsAdded)
goals.add(createGoal(className, methodName, returnType, REF_NONNULL));
break;
default:
// Ignore
// TODO: what to do with the sort for METHOD?
break;
}
}
}
goalComputationTime = System.currentTimeMillis() - start;
return goals;
}
public static OutputCoverageTestFitness createGoal(String className, String methodName, Type returnType, String suffix) {
return new OutputCoverageTestFitness(new OutputCoverageGoal(className, methodName, returnType, suffix));
}
/**
* Returns list of inspector methods in a given class.
* An inspector is a cheap-pure method with no arguments.
*
* @param className A class name
*/
public static List<String> getInspectors(String className) {
List<String> pureMethods = CheapPurityAnalyzer.getInstance().getPureMethods(className);
List<String> inspectors = new ArrayList<>();
for (String pm : pureMethods) {
if ((Type.getArgumentTypes(pm.substring(pm.indexOf('('))).length == 0) &&
! (pm.substring(0, pm.indexOf("(")).equals("<clinit>")))
inspectors.add(pm);
}
return inspectors;
}
}