/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.optaplanner.core.impl.score.director.drools.testgen.mutation;
import java.util.ArrayList;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
import static org.junit.Assert.*;
public class TestGenRemoveRandomBlockMutatorTest {
private static final int LIST_SIZE = 500;
private ArrayList<Integer> list = new ArrayList<>();
@Before
public void setUp() {
for (int i = 0; i < LIST_SIZE; i++) {
list.add(i);
}
}
@Test
public void testRemoveAll() {
TestGenRemoveRandomBlockMutator<Integer> m = new TestGenRemoveRandomBlockMutator<>(list);
ArrayList<Integer> removed = new ArrayList<>();
while (m.canMutate()) {
assertTrue(m.canMutate());
m.mutate();
removed.addAll(m.getRemovedBlock());
}
assertFalse(m.canMutate());
for (int i = 0; i < LIST_SIZE; i++) {
assertTrue(removed.contains(list.get(i)));
}
}
@Test
public void testRevert() {
TestGenRemoveRandomBlockMutator<Integer> m = new TestGenRemoveRandomBlockMutator<>(list);
m.mutate();
List<Integer> removedBlock = m.getRemovedBlock();
m.revert();
assertTrue(m.getResult().containsAll(removedBlock));
assertEquals(LIST_SIZE, m.getResult().size());
}
@Test
public void testImpossibleMutation() {
TestGenRemoveRandomBlockMutator<Integer> m = new TestGenRemoveRandomBlockMutator<>(list);
ArrayList<Integer> removed = new ArrayList<>();
while (m.canMutate()) {
m.mutate();
removed.addAll(m.getRemovedBlock());
m.revert();
}
for (int i = 0; i < LIST_SIZE; i++) {
assertTrue(removed.contains(list.get(i)));
}
}
}