/*
 * Copyright 2015 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.heuristic.selector.common.decorator;

import org.junit.Test;
import org.optaplanner.core.config.heuristic.selector.common.decorator.SelectionSorterOrder;

import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import static org.junit.Assert.assertTrue;

public class ComparatorSelectionSorterTest {

    @Test
    public void sort() {
        Integer[] baseArray = new Integer[] {3, 4, 3, 5, 1};
        List<Integer> arrayToSort = new ArrayList<Integer>();
        Collections.addAll(arrayToSort, baseArray);
        ComparatorSelectionSorter<Integer> selectionSorter = new ComparatorSelectionSorter<Integer>(new TestComparator(), SelectionSorterOrder.ASCENDING);
        selectionSorter.sort(null, arrayToSort);
        assertTrue(ascendingSort(arrayToSort));

        arrayToSort = new ArrayList<Integer>();
        Collections.addAll(arrayToSort, baseArray);
        selectionSorter = new ComparatorSelectionSorter<Integer>(new TestComparator(), SelectionSorterOrder.DESCENDING);
        selectionSorter.sort(null, arrayToSort);
        assertTrue(descendingSort(arrayToSort));
    }

    private boolean ascendingSort(List<Integer> list) {
        Integer tmp = list.get(0);
        for (Integer aList : list) {
            if (tmp <= aList) {
                tmp = aList;
            } else {
                return false;
            }
        }
        return true;
    }

    private boolean descendingSort(List<Integer> list) {
        Integer tmp = list.get(0);
        for (Integer aList : list) {
            if (tmp >= aList) {
                tmp = aList;
            } else {
                return false;
            }
        }
        return true;
    }

    private class TestComparator implements Comparator<Integer> {

        @Override
        public int compare(Integer a, Integer b) {
            return a.compareTo(b);
        }

    }

}

@@ -802,16 +802,192 @@
 erOrder;
+%0Aimport org.optaplanner.core.impl.testdata.domain.TestdataSolution;%0Aimport org.optaplanner.core.impl.testdata.domain.shadow.cyclic.seven.TestdataSevenNonCyclicShadowedSolution;
 %0A%0Aimport
@@ -1417,32 +1417,50 @@
 SelectionSorter%3C
+TestdataSolution, 
 Integer%3E selecti
@@ -1492,32 +1492,50 @@
 SelectionSorter%3C
+TestdataSolution, 
 Integer%3E(new Tes
@@ -1772,32 +1772,32 @@
 rt, baseArray);%0A
-
         selectio
@@ -1836,16 +1836,34 @@
 nSorter%3C
+TestdataSolution, 
 Integer%3E

fix compile error