//=============================================================================
// Copyright 2006-2010 Daniel W. Dyer
//
// 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.uncommons.watchmaker.framework.termination;
import org.testng.annotations.Test;
import org.uncommons.watchmaker.framework.PopulationData;
import org.uncommons.watchmaker.framework.TerminationCondition;
/**
* Unit test for termination condition that checks the best fitness attained so far
* against a pre-determined target.
* @author Daniel Dyer
*/
public class TargetFitnessTest
{
@Test
public void testNaturalFitness()
{
TerminationCondition condition = new TargetFitness(10.0d, true);
PopulationData<Object> data = new PopulationData<Object>(new Object(), 5.0d, 4.0d, 0, true, 2, 0, 0, 100);
assert !condition.shouldTerminate(data) : "Should not terminate before target fitness is reached.";
data = new PopulationData<Object>(new Object(), 10.0d, 8.0d, 0, true, 2, 0, 0, 100);
assert condition.shouldTerminate(data) : "Should terminate once target fitness is reached.";
}
@Test
public void testNonNaturalFitness()
{
TerminationCondition condition = new TargetFitness(1.0d, false);
PopulationData<Object> data = new PopulationData<Object>(new Object(), 5.0d, 4.0d, 0, true, 2, 0, 0, 100);
assert !condition.shouldTerminate(data) : "Should not terminate before target fitness is reached.";
data = new PopulationData<Object>(new Object(), 1.0d, 3.1d, 0, true, 2, 0, 0, 100);
assert condition.shouldTerminate(data) : "Should terminate once target fitness is reached.";
}
}