/**
* 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.testcase.localsearch;
import org.evosuite.Properties;
import org.evosuite.Properties.DSEType;
import org.evosuite.ga.localsearch.LocalSearch;
import org.evosuite.testcase.TestCase;
import org.evosuite.testcase.TestChromosome;
import org.evosuite.testcase.statements.NullStatement;
import org.evosuite.testcase.statements.PrimitiveStatement;
import org.evosuite.testcase.statements.Statement;
import org.evosuite.utils.Randomness;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Applies local search to a given Test Case (a TestChromosome) using a local
* search objective for test cases.
*
* @author Gordon Fraser
*/
public abstract class TestCaseLocalSearch implements LocalSearch<TestChromosome> {
protected static final Logger logger = LoggerFactory.getLogger(TestCaseLocalSearch.class);
/**
* The factory method that returns the type of Local Search that is supposed
* to be applied on the Test Case
*
* @return
*/
public static TestCaseLocalSearch selectTestCaseLocalSearch() {
final double nextDouble = Randomness.nextDouble();
boolean useDSE = nextDouble < Properties.DSE_PROBABILITY;
if (useDSE) {
return new DSETestCaseLocalSearch();
} else {
return new AVMTestCaseLocalSearch();
}
}
/**
* This method allows to reset all primitive values before trying again a
* local search on the same test case.
*
* @param test
* the test case that will have their primitive values changed to
* random primitive values.
*/
public static void randomizePrimitives(TestCase test) {
for (Statement s : test) {
if (s instanceof PrimitiveStatement<?>) {
if (s instanceof NullStatement) {
continue; // ignore NullStatement
}
((PrimitiveStatement<?>) s).randomize();
}
}
}
}