1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.math4.legacy.optim;
18
19 import org.junit.Assert;
20 import org.junit.Test;
21
22 public class PointValuePairTest {
23 @Test
24 public void testEquals() {
25 final double[] p1 = new double[] { 1 };
26 final PointValuePair pv1 = new PointValuePair(p1, 2);
27 Assert.assertNotEquals(pv1, null);
28
29 final PointValuePair pv2 = new PointValuePair(pv1.getPointRef(), 3);
30 // Same array reference, different objective values.
31 Assert.assertNotEquals(pv1, pv2);
32
33 final PointValuePair pv3 = new PointValuePair(pv2.getPoint(), pv2.getValue());
34 // Different array reference, same array values, same objective values.
35 Assert.assertEquals(pv2, pv3);
36
37 final double[] p2 = new double[] { p1[0] + 1 };
38 final PointValuePair pv4 = new PointValuePair(p2, pv2.getValue());
39 // Different array values, same objective values.
40 Assert.assertNotEquals(pv2, pv4);
41 }
42 }