@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);
}
@Test
public void testTwoInts()
throws NoSuchMethodException, SecurityException, ClassNotFoundException,
ConstructionFailedException {
Properties.TARGET_CLASS = IntExampleWithNoElse.class.getCanonicalName();
TestChromosome test1 = new TestChromosome();
test1.setTestCase(getTwoIntTest(1, 22, 22, 22));
TestChromosome test2 = new TestChromosome();
test2.setTestCase(getTwoIntTest(-23423423, 234234234, -23423423, 234234234));
TestChromosome test3 = new TestChromosome();
test3.setTestCase(getTwoIntTest(0, 0, 0, 0));
TestSuiteChromosome suite = new TestSuiteChromosome();
BranchCoverageSuiteFitness fitness = new BranchCoverageSuiteFitness();
assertEquals(6.0, fitness.getFitness(suite), 0.0F);
suite.addTest(test1);
assertEquals(2.0, fitness.getFitness(suite), 0.0F);
suite.addTest(test2);
suite.addTest(test3);
Class<?> sut =
TestGenerationContext.getInstance()
.getClassLoaderForSUT()
.loadClass(Properties.TARGET_CLASS);
Method m = sut.getMethod("testMe", new Class<?>[] {int.class, int.class});
GenericMethod method = new GenericMethod(m, sut);
TestCluster.getInstance().addTestCall(method);
Properties.P_TEST_CHANGE = 0.0;
Properties.P_TEST_DELETE = 1.0;
Properties.P_TEST_INSERT = 0.0;
double oldFitness = fitness.getFitness(suite);
int notChanged = 0;
System.out.println("Original: " + test1);
for (int i = 0; i < 100; i++) {
TestChromosome testNew = (TestChromosome) test1.clone();
testNew.mutate();
if (testNew.isChanged()) {
System.out.println("Trying: " + testNew);
suite.deleteTest(test1);
suite.addTest(testNew);
double newFitness = fitness.getFitness(suite);
if (newFitness < oldFitness) {
test1 = testNew;
oldFitness = newFitness;
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);
}
@Test
public void testSimpleInt()
throws NoSuchMethodException, SecurityException, ClassNotFoundException,
ConstructionFailedException {
Properties.TARGET_CLASS = TrivialInt.class.getCanonicalName();
TestChromosome test1 = new TestChromosome();
test1.setTestCase(getIntTest(2938, -1000000));
TestChromosome test2 = (TestChromosome) test1.clone();
TestSuiteChromosome suite = new TestSuiteChromosome();
BranchCoverageSuiteFitness fitness = new BranchCoverageSuiteFitness();
assertEquals(4.0, fitness.getFitness(suite), 0.0F);
suite.addTest(test1);
assertEquals(1.0, fitness.getFitness(suite), 0.0F);
suite.addTest(test2);
assertEquals(1.0, fitness.getFitness(suite), 0.01F); // 0.99...
Class<?> sut =
TestGenerationContext.getInstance()
.getClassLoaderForSUT()
.loadClass(Properties.TARGET_CLASS);
Method m = sut.getMethod("testMe", new Class<?>[] {int.class});
GenericMethod method = new GenericMethod(m, sut);
TestCluster.getInstance().addTestCall(method);
Properties.P_TEST_CHANGE = 0.0;
Properties.P_TEST_DELETE = 1.0;
Properties.P_TEST_INSERT = 0.0;
double oldFitness = suite.getFitness();
int notChanged = 0;
for (int i = 0; i < 100; i++) {
TestChromosome testNew = (TestChromosome) test1.clone();
testNew.mutate();
if (testNew.isChanged()) {
suite.deleteTest(test1);
suite.addTest(testNew);
System.out.println(testNew.getTestCase().toCode());
double newFitness = fitness.getFitness(suite);
if (newFitness < oldFitness) {
System.out.println("Improved: " + newFitness);
test1 = testNew;
oldFitness = newFitness;
System.out.println(
""
+ i
+ ":"
+ ((IntPrimitiveStatement) test1.getTestCase().getStatement(1)).getValue());
if (newFitness == 0.0) {
System.out.println("Iterations: " + i);
System.out.println("Not changed: " + notChanged);
break;
}
} else {
System.out.println("Not improved: " + newFitness);
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);
}
