/**
* 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.testsuite.localsearch;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
import java.lang.reflect.Method;
import org.evosuite.Properties;
import org.evosuite.Properties.Criterion;
import org.evosuite.TestGenerationContext;
import org.evosuite.classpath.ClassPathHandler;
import org.evosuite.coverage.branch.BranchCoverageSuiteFitness;
import org.evosuite.ga.localsearch.DefaultLocalSearchObjective;
import org.evosuite.ga.localsearch.LocalSearchObjective;
import org.evosuite.symbolic.TestCaseBuilder;
import org.evosuite.testcase.DefaultTestCase;
import org.evosuite.testcase.TestChromosome;
import org.evosuite.testcase.variable.VariableReference;
import org.evosuite.testsuite.TestSuiteChromosome;
import org.junit.After;
import org.junit.Assume;
import org.junit.Before;
import org.junit.Test;
import com.examples.with.different.packagename.symbolic.Foo;
public class TestDSETestSuiteCookie {
/**
* Creates the test case:
*
* <code>
* int int0 = 10;
* int int1 = 10;
* int int2 = 10;
* Foo.bar(int0,int1,int2);
* </code>
*
* @return
* @throws NoSuchMethodException
* @throws SecurityException
* @throws ClassNotFoundException
*/
private static DefaultTestCase buildTestCase0()
throws NoSuchMethodException, SecurityException, ClassNotFoundException {
TestCaseBuilder builder = new TestCaseBuilder();
VariableReference int0 = builder.appendIntPrimitive(10);
VariableReference int1 = builder.appendIntPrimitive(10);
VariableReference int2 = builder.appendIntPrimitive(10);
Class<?> fooClass = TestGenerationContext.getInstance().getClassLoaderForSUT()
.loadClass(Properties.TARGET_CLASS);
Method barMethod = fooClass.getMethod("bar", int.class, int.class, int.class);
builder.appendMethod(null, barMethod, int0, int1, int2);
return builder.getDefaultTestCase();
}
private static final long DEFAULT_LOCAL_SEARCH_BUDGET = Properties.LOCAL_SEARCH_BUDGET;
private static final Properties.LocalSearchBudgetType DEFAULT_LOCAL_SEARCH_BUDGET_TYPE = Properties.LOCAL_SEARCH_BUDGET_TYPE;
private static final Properties.SolverType DEFAULT_DSE_SOLVER = Properties.DSE_SOLVER;
private static final Properties.DSEType DEFAULT_LOCAL_SEARCH_DSE = Properties.LOCAL_SEARCH_DSE;
private static final double DEFAULT_DSE_PROBABILITY = Properties.DSE_PROBABILITY;
@Before
public void init() {
ClassPathHandler.getInstance().changeTargetCPtoTheSameAsEvoSuite();
Properties.LOCAL_SEARCH_BUDGET = Integer.MAX_VALUE;
Properties.LOCAL_SEARCH_BUDGET_TYPE = Properties.LocalSearchBudgetType.TESTS;
Properties.DSE_PROBABILITY = 1.0;
Properties.LOCAL_SEARCH_DSE = Properties.DSEType.SUITE;
}
@After
public void restoreProperties() {
Properties.LOCAL_SEARCH_BUDGET = DEFAULT_LOCAL_SEARCH_BUDGET;
Properties.LOCAL_SEARCH_BUDGET_TYPE = DEFAULT_LOCAL_SEARCH_BUDGET_TYPE;
Properties.DSE_SOLVER = DEFAULT_DSE_SOLVER;
Properties.DSE_PROBABILITY = DEFAULT_DSE_PROBABILITY;
Properties.LOCAL_SEARCH_DSE = DEFAULT_LOCAL_SEARCH_DSE;
}
@Test
public void testAVMSolver() throws NoSuchMethodException, SecurityException, ClassNotFoundException {
Properties.DSE_SOLVER = Properties.SolverType.EVOSUITE_SOLVER;
Properties.CRITERION = new Properties.Criterion[] { Criterion.BRANCH };
Properties.TARGET_CLASS = Foo.class.getName();
TestGenerationContext.getInstance().getClassLoaderForSUT().loadClass(Properties.TARGET_CLASS);
BranchCoverageSuiteFitness branchCoverageSuiteFitness = new BranchCoverageSuiteFitness();
TestSuiteChromosome suite = new TestSuiteChromosome();
suite.addFitness(branchCoverageSuiteFitness);
branchCoverageSuiteFitness.getFitness(suite);
// no goals covered yet
int coveredGoals0 = suite.getNumOfCoveredGoals();
int notCoveredGoals0 = suite.getNumOfNotCoveredGoals();
assertEquals(0, coveredGoals0);
assertNotEquals(0, notCoveredGoals0);
DefaultTestCase testCase0 = buildTestCase0();
TestChromosome testChromosome0 = new TestChromosome();
testChromosome0.setTestCase(testCase0);
suite.addTest(testChromosome0);
double fitnessBeforeLocalSearch = branchCoverageSuiteFitness.getFitness(suite);
int coveredGoalsBeforeLocalSearch = suite.getNumOfCoveredGoals();
// some goal was covered
assertTrue(coveredGoalsBeforeLocalSearch > 0);
LocalSearchObjective<TestSuiteChromosome> localSearchObjective = new DefaultLocalSearchObjective<>();
localSearchObjective.addFitnessFunction(branchCoverageSuiteFitness);
boolean improved;
do {
TestSuiteLocalSearch localSearch = new TestSuiteLocalSearch();
improved = localSearch.doSearch(suite, localSearchObjective);
} while (improved);
double fitnessAfterLocalSearch = branchCoverageSuiteFitness.getFitness(suite);
int coveredGoalsAfterLocalSearch = suite.getNumOfCoveredGoals();
assertTrue(fitnessAfterLocalSearch < fitnessBeforeLocalSearch);
assertTrue(coveredGoalsAfterLocalSearch > coveredGoalsBeforeLocalSearch);
int finalSuiteSize = suite.size();
assertTrue(coveredGoalsAfterLocalSearch >= 7);
assertTrue(finalSuiteSize >= 4);
}
@Test
public void testCVC4Solver() throws NoSuchMethodException, SecurityException, ClassNotFoundException {
String cvc4_path = System.getenv("cvc4_path");
if (cvc4_path != null) {
Properties.CVC4_PATH = cvc4_path;
}
Assume.assumeTrue(Properties.CVC4_PATH != null);
Properties.DSE_SOLVER = Properties.SolverType.CVC4_SOLVER;
Properties.CRITERION = new Properties.Criterion[] { Criterion.BRANCH };
Properties.TARGET_CLASS = Foo.class.getName();
TestGenerationContext.getInstance().getClassLoaderForSUT().loadClass(Properties.TARGET_CLASS);
BranchCoverageSuiteFitness branchCoverageSuiteFitness = new BranchCoverageSuiteFitness();
TestSuiteChromosome suite = new TestSuiteChromosome();
suite.addFitness(branchCoverageSuiteFitness);
branchCoverageSuiteFitness.getFitness(suite);
// no goals covered yet
int coveredGoals0 = suite.getNumOfCoveredGoals();
int notCoveredGoals0 = suite.getNumOfNotCoveredGoals();
assertEquals(0, coveredGoals0);
assertNotEquals(0, notCoveredGoals0);
DefaultTestCase testCase0 = buildTestCase0();
TestChromosome testChromosome0 = new TestChromosome();
testChromosome0.setTestCase(testCase0);
suite.addTest(testChromosome0);
double fitnessBeforeLocalSearch = branchCoverageSuiteFitness.getFitness(suite);
int coveredGoalsBeforeLocalSearch = suite.getNumOfCoveredGoals();
// some goal was covered
assertTrue(coveredGoalsBeforeLocalSearch > 0);
LocalSearchObjective<TestSuiteChromosome> localSearchObjective = new DefaultLocalSearchObjective<>();
localSearchObjective.addFitnessFunction(branchCoverageSuiteFitness);
boolean improved;
do {
TestSuiteLocalSearch localSearch = new TestSuiteLocalSearch();
improved = localSearch.doSearch(suite, localSearchObjective);
} while (improved);
double fitnessAfterLocalSearch = branchCoverageSuiteFitness.getFitness(suite);
int coveredGoalsAfterLocalSearch = suite.getNumOfCoveredGoals();
assertTrue(fitnessAfterLocalSearch < fitnessBeforeLocalSearch);
assertTrue(coveredGoalsAfterLocalSearch > coveredGoalsBeforeLocalSearch);
int finalSuiteSize = suite.size();
assertTrue(coveredGoalsAfterLocalSearch == 8);
assertTrue(finalSuiteSize >= 5);
}
}