Examples with TestChromosome org.evosuite.testcase.TestChromosome used on opensource projects

Example 46 with TestChromosome

use of org.evosuite.testcase.TestChromosome in project evosuite by EvoSuite.

the class TestSuiteSerialization method saveTests.

public static boolean saveTests(TestSuiteChromosome ts, File target) throws IllegalArgumentException {
    File parent = target.getParentFile();
    if (!parent.exists()) {
        parent.mkdirs();
    }
    try (ObjectOutputStream out = new DebuggingObjectOutputStream(new FileOutputStream(target))) {
        for (TestChromosome tc : ts.getTestChromosomes()) {
            out.writeObject(tc);
        }
        out.flush();
        out.close();
    } catch (IOException e) {
        logger.error("Failed to open/handle " + target.getAbsolutePath() + " for writing: " + e.getMessage());
        return false;
    }
    return true;
}

Example 47 with TestChromosome

use of org.evosuite.testcase.TestChromosome in project evosuite by EvoSuite.

the class JUnitTestSuiteChromosomeFactory method getChromosome.

/* (non-Javadoc)
	 * @see org.evosuite.ga.ChromosomeFactory#getChromosome()
	 */
/**
 * {@inheritDoc}
 */
@Override
public TestSuiteChromosome getChromosome() {
    /*
		double P_delta = 0.1d;
		double P_clone = 0.1d;
		int MAX_CHANGES = 10;
		*/
    TestSuiteChromosome chromosome = new TestSuiteChromosome(new RandomLengthTestFactory());
    chromosome.clearTests();
    int numTests = Randomness.nextInt(Properties.MIN_INITIAL_TESTS, Properties.MAX_INITIAL_TESTS + 1);
    for (int i = 0; i < numTests; i++) {
        TestChromosome test = defaultFactory.getChromosome();
        chromosome.addTest(test);
    // chromosome.tests.add(test);
    }
    return chromosome;
}

Example 48 with TestChromosome

use of org.evosuite.testcase.TestChromosome in project evosuite by EvoSuite.

the class TestSuiteChromosomeFactory method getChromosome.

/**
 * {@inheritDoc}
 */
@Override
public TestSuiteChromosome getChromosome() {
    TestSuiteChromosome chromosome = new TestSuiteChromosome(testChromosomeFactory);
    chromosome.clearTests();
    // ((AllMethodsChromosomeFactory)test_factory).clear();
    int numTests = Randomness.nextInt(Properties.MIN_INITIAL_TESTS, Properties.MAX_INITIAL_TESTS + 1);
    for (int i = 0; i < numTests; i++) {
        TestChromosome test = testChromosomeFactory.getChromosome();
        chromosome.addTest(test);
    // chromosome.tests.add(test);
    }
    // logger.trace("Generated new test suite:"+chromosome);
    return chromosome;
}

Example 49 with TestChromosome

use of org.evosuite.testcase.TestChromosome in project evosuite by EvoSuite.

the class TestSuiteLocalSearch method applyLocalSearch.

/**
 * Decides the type of local search to be applied, and invokes the
 * corresponding local search procedure.
 *
 * @param suite
 *            the suite to optimise
 * @param objective
 *            the local search objective
 */
private void applyLocalSearch(TestSuiteChromosome suite, LocalSearchObjective<TestSuiteChromosome> objective) {
    final LocalSearchSuiteType localSearchType;
    localSearchType = chooseLocalSearchSuiteType();
    /*
		 * We make a copy of the original test cases before Local Search
		 */
    List<TestChromosome> originalTests = new ArrayList<TestChromosome>(suite.getTestChromosomes());
    for (final TestChromosome test : originalTests) {
        // again
        if (test.hasLocalSearchBeenApplied()) {
            TestCaseLocalSearch.randomizePrimitives(test.getTestCase());
            updateFitness(suite, objective.getFitnessFunctions());
        }
        if (LocalSearchBudget.getInstance().isFinished()) {
            logger.debug("Local search budget used up: " + Properties.LOCAL_SEARCH_BUDGET_TYPE);
            break;
        }
        logger.debug("Local search budget not yet used up");
        final double tossCoin = Randomness.nextDouble();
        final boolean shouldApplyDSE = localSearchType == LocalSearchSuiteType.ALWAYS_DSE || (localSearchType == LocalSearchSuiteType.DSE_AND_AVM && tossCoin <= Properties.DSE_PROBABILITY);
        /*
			 * We create a cloned test case to play local search with it. This
			 * resembles the deprecated ensureDoubleExecution
			 */
        TestChromosome clonedTest = (TestChromosome) test.clone();
        suite.addTest(clonedTest);
        final int lastIndex = suite.size() - 1;
        final boolean improved;
        if (shouldApplyDSE) {
            improved = applyDSE(suite, lastIndex, clonedTest, objective);
        } else {
            improved = applyAVM(suite, lastIndex, clonedTest, objective);
        }
        if (improved) {
            updateFitness(suite, objective.getFitnessFunctions());
        } else {
            // remove cloned test case if there was no improvement
            suite.deleteTest(clonedTest);
        }
        test.setLocalSearchApplied(true);
    }
}

Example 50 with TestChromosome

use of org.evosuite.testcase.TestChromosome in project evosuite by EvoSuite.

the class TestSuiteLocalSearch method applyAVM.

/**
 * Applies AVM on the test case in the suite
 *
 * @param suite
 * @param testIndex
 * @param test
 * @param localSearchObjective
 * @return
 */
private boolean applyAVM(TestSuiteChromosome suite, int testIndex, TestChromosome test, LocalSearchObjective<TestSuiteChromosome> objective) {
    logger.debug("Local search on test " + testIndex + ", current fitness: " + suite.getFitness());
    final List<FitnessFunction<? extends Chromosome>> fitnessFunctions = objective.getFitnessFunctions();
    TestSuiteLocalSearchObjective testCaseLocalSearchObjective = TestSuiteLocalSearchObjective.buildNewTestSuiteLocalSearchObjective(fitnessFunctions, suite, testIndex);
    AVMTestCaseLocalSearch testCaselocalSearch = new AVMTestCaseLocalSearch();
    boolean improved = testCaselocalSearch.doSearch(test, testCaseLocalSearchObjective);
    return improved;
}