/**
* 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;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import java.util.Map.Entry;
import org.evosuite.Properties;
import org.evosuite.Properties.Criterion;
import org.evosuite.TestGenerationContext;
import org.evosuite.classpath.ClassPathHandler;
import org.evosuite.coverage.branch.BranchPool;
import org.evosuite.coverage.line.LineCoverageFactory;
import org.evosuite.coverage.line.LineCoverageTestFitness;
import org.evosuite.graphs.GraphPool;
import org.evosuite.graphs.cfg.CFGMethodAdapter;
import org.evosuite.graphs.cfg.RawControlFlowGraph;
import org.evosuite.instrumentation.LinePool;
import org.evosuite.runtime.classhandling.ClassResetter;
import org.evosuite.runtime.sandbox.Sandbox;
import org.evosuite.setup.DependencyAnalysis;
import org.evosuite.setup.TestCluster;
import org.evosuite.strategy.TestGenerationStrategy;
import org.evosuite.testcase.TestFitnessFunction;
import org.evosuite.testcase.execution.ExecutionTracer;
import org.evosuite.utils.FileIOUtils;
import org.evosuite.utils.LoggingUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* @author Gordon Fraser
*
*/
public class ClassStatisticsPrinter {
private static final Logger logger = LoggerFactory.getLogger(ClassStatisticsPrinter.class);
/**
* Identify all JUnit tests starting with the given name prefix, instrument
* and run tests
*/
public static void printClassStatistics() {
ExecutionTracer.disable();
ExecutionTracer.setCheckCallerThread(false);
try {
DependencyAnalysis.analyzeClass(Properties.TARGET_CLASS,
Arrays.asList(ClassPathHandler.getInstance().getClassPathElementsForTargetProject()));
Sandbox.goingToExecuteSUTCode();
TestGenerationContext.getInstance().goingToExecuteSUTCode();
Sandbox.goingToExecuteUnsafeCodeOnSameThread();
// Load SUT without initialising it
Class<?> targetClass = Properties.getTargetClassAndDontInitialise();
if(targetClass != null) {
LoggingUtils.getEvoLogger().info("* Finished analyzing classpath");
} else {
LoggingUtils.getEvoLogger().info("* Error while initializing target class, not continuing");
return;
}
int publicMethods = 0;
int nonpublicMethods = 0;
int staticMethods = 0;
int staticFields = 0;
for(Method method : targetClass.getDeclaredMethods()) {
if(method.getName().equals(ClassResetter.STATIC_RESET))
continue;
if(Modifier.isPublic(method.getModifiers())) {
publicMethods++;
} else {
nonpublicMethods++;
}
if(Modifier.isStatic(method.getModifiers())) {
LoggingUtils.getEvoLogger().info("Static: "+method);
staticMethods++;
}
}
for(Constructor<?> constructor: targetClass.getDeclaredConstructors()) {
if(Modifier.isPublic(constructor.getModifiers())) {
publicMethods++;
} else {
nonpublicMethods++;
}
}
for(Field field : targetClass.getDeclaredFields()) {
if(Modifier.isStatic(field.getModifiers())) {
staticFields++;
}
}
LoggingUtils.getEvoLogger().info("* Abstract: "+Modifier.isAbstract(targetClass.getModifiers()));
LoggingUtils.getEvoLogger().info("* Public methods/constructors: "+publicMethods);
LoggingUtils.getEvoLogger().info("* Non-Public methods/constructors: "+nonpublicMethods);
LoggingUtils.getEvoLogger().info("* Static methods: "+staticMethods);
LoggingUtils.getEvoLogger().info("* Inner classes: "+targetClass.getDeclaredClasses().length);
LoggingUtils.getEvoLogger().info("* Total fields: "+targetClass.getDeclaredFields().length);
LoggingUtils.getEvoLogger().info("* Static fields: "+staticFields);
LoggingUtils.getEvoLogger().info("* Type parameters: "+targetClass.getTypeParameters().length);
} catch (Throwable e) {
LoggingUtils.getEvoLogger().error("* Error while initializing target class: "
+ (e.getMessage() != null ? e.getMessage()
: e.toString()));
return;
} finally {
Sandbox.doneWithExecutingUnsafeCodeOnSameThread();
Sandbox.doneWithExecutingSUTCode();
TestGenerationContext.getInstance().doneWithExecutingSUTCode();
}
LoggingUtils.getEvoLogger().info("* Subclasses: "+(TestCluster.getInheritanceTree().getSubclasses(Properties.TARGET_CLASS).size() - 1));
LoggingUtils.getEvoLogger().info("* Superclasses/interfaces: "+(TestCluster.getInheritanceTree().getSuperclasses(Properties.TARGET_CLASS).size() - 1));
LoggingUtils.getEvoLogger().info("* Lines of code: "+LinePool.getNumLines());
LoggingUtils.getEvoLogger().info("* Methods without branches: "+BranchPool.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT()).getNumBranchlessMethods());
LoggingUtils.getEvoLogger().info("* Total branch predicates: "+BranchPool.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT()).getBranchCounter());
double complexity = 0.0;
int maxComplexity = 0;
for(Entry<String, RawControlFlowGraph> entry : GraphPool.getInstance(TestGenerationContext.getInstance().getClassLoaderForSUT()).getRawCFGs(Properties.TARGET_CLASS).entrySet()) {
int c = entry.getValue().getCyclomaticComplexity();
if(c > maxComplexity)
maxComplexity = c;
complexity += c;
// LoggingUtils.getEvoLogger().info("* Complexity of method "+entry.getKey()+": "+entry.getValue().getCyclomaticComplexity());
}
LoggingUtils.getEvoLogger().info("* Average cyclomatic complexity: "+(complexity/CFGMethodAdapter.getNumMethods(TestGenerationContext.getInstance().getClassLoaderForSUT())));
LoggingUtils.getEvoLogger().info("* Maximum cyclomatic complexity: "+maxComplexity);
StringBuilder allGoals = new StringBuilder();
List<TestFitnessFactory<?>> factories = TestGenerationStrategy.getFitnessFactories();
int numCriterion = 0;
for (TestFitnessFactory<?> factory : factories) {
List<TestFitnessFunction> goals = (List<TestFitnessFunction>) factory.getCoverageGoals();
LoggingUtils.getEvoLogger().info("* Criterion " + Properties.CRITERION[numCriterion++]+ ": " + goals.size());
if (Properties.PRINT_GOALS) {
if (factory instanceof LineCoverageFactory) {
Collections.sort(goals, new Comparator<TestFitnessFunction>() {
@Override
public int compare(TestFitnessFunction l1, TestFitnessFunction l2) {
return Integer.compare(((LineCoverageTestFitness) l1).getLine(),
((LineCoverageTestFitness) l2).getLine());
}
});
}
for (TestFitnessFunction goal : goals) {
allGoals.append(goal.toString() + java.lang.System.getProperty("line.separator"));
}
}
}
if (allGoals.length() > 0 && Properties.PRINT_GOALS) {
if (Properties.WRITE_ALL_GOALS_FILE) {
FileIOUtils.writeFile(allGoals.toString(), Properties.ALL_GOALS_FILE);
} else {
LoggingUtils.getEvoLogger().info(allGoals.toString());
}
}
}
}