/**
* Copyright 2010 JBoss Inc
*
* 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.drools.planner.core.score.definition;
import org.drools.planner.core.score.DefaultHardAndSoftScore;
import org.junit.Test;
import static org.junit.Assert.*;
/**
* @author Geoffrey De Smet
*/
public class HardAndSoftScoreDefinitionTest {
@Test
public void testCalculateTimeGradient() {
HardAndSoftScoreDefinition scoreDefinition = new HardAndSoftScoreDefinition();
scoreDefinition.setHardScoreTimeGradientWeight(0.75);
// Normal cases
// Smack in the middle
assertEquals(0.6, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-14,-340)), 0.0);
// No hard broken, total soft broken
assertEquals(0.75, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-10,-400)), 0.0);
// Total hard broken, no soft broken
assertEquals(0.25, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-20,-300)), 0.0);
// No hard broken, more than total soft broken
assertEquals(0.75, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-10,-900)), 0.0);
// More than total hard broken, no soft broken
assertEquals(0.0, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-90,-300)), 0.0);
// Perfect min/max cases
assertEquals(1.0, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-10,-300), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-10,-300)), 0.0);
assertEquals(0.0, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-20,-400)), 0.0);
assertEquals(1.0, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-10,-300)), 0.0);
// Hard total delta is 0
assertEquals(0.6, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-10,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-10,-340)), 0.0);
assertEquals(0.0, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-10,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-20,-340)), 0.0);
assertEquals(1.0, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-10,-400), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-0,-340)), 0.0);
// Soft total delta is 0
assertEquals((0.6 * 0.75) + 0.25, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-300), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-14,-300)), 0.0);
assertEquals(0.6 * 0.75, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-300), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-14,-400)), 0.0);
assertEquals((0.6 * 0.75) + 0.25, scoreDefinition.calculateTimeGradient(
DefaultHardAndSoftScore.valueOf(-20,-300), DefaultHardAndSoftScore.valueOf(-10,-300),
DefaultHardAndSoftScore.valueOf(-14,-0)), 0.0);
}
}