Examples with WeakMutationSuiteFitness org.evosuite.coverage.mutation.WeakMutationSuiteFitness used on opensource projects

Example 1 with WeakMutationSuiteFitness

use of org.evosuite.coverage.mutation.WeakMutationSuiteFitness in project evosuite by EvoSuite.

the class ChangeMutationSystemTest method testTwoIntsWeakMutation.

@Test
public void testTwoIntsWeakMutation() throws NoSuchMethodException, SecurityException, ClassNotFoundException, ConstructionFailedException {
    Properties.TARGET_CLASS = IntExampleWithNoElse.class.getCanonicalName();
    TestChromosome test1 = new TestChromosome();
    test1.setTestCase(getTwoIntTest(1, 1000));
    TestChromosome test2 = new TestChromosome();
    test2.setTestCase(getTwoIntTest(0, 0));
    TestSuiteChromosome suite = new TestSuiteChromosome();
    WeakMutationSuiteFitness fitness = new WeakMutationSuiteFitness();
    suite.addTest(test1);
    suite.addTest(test2);
    Properties.P_TEST_CHANGE = 1.0;
    Properties.P_TEST_DELETE = 0.0;
    Properties.P_TEST_INSERT = 0.0;
    Properties.PRIMITIVE_POOL = 0.0;
    double oldFitness = fitness.getFitness(suite);
    int notChanged = 0;
    for (int i = 0; i < 10000; i++) {
        TestChromosome testNew = (TestChromosome) test1.clone();
        testNew.mutate();
        if (testNew.isChanged()) {
            suite.deleteTest(test1);
            suite.addTest(testNew);
            double newFitness = fitness.getFitness(suite);
            if (newFitness < oldFitness) {
                test1 = testNew;
                oldFitness = newFitness;
                System.out.println("" + i + ":" + ((IntPrimitiveStatement) test1.getTestCase().getStatement(1)).getValue());
                System.out.println("    " + ((IntPrimitiveStatement) test1.getTestCase().getStatement(2)).getValue());
                if (newFitness == 0.0) {
                    System.out.println("Iterations: " + i);
                    System.out.println("Not changed: " + notChanged);
                    break;
                }
            } else {
                suite.deleteTest(testNew);
                suite.addTest(test1);
                fitness.getFitness(suite);
            }
        } else {
            notChanged++;
        }
    }
    System.out.println("Fitness: " + fitness.getFitness(suite));
    System.out.println("Test suite: " + suite);
    assertEquals(0.0, fitness.getFitness(suite), 0.1F);
}