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 * https://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
18 /*
19 * This is not the original file distributed by the Apache Software Foundation
20 * It has been modified by the Hipparchus project
21 */
22 package org.hipparchus.geometry.euclidean.twod.hull;
23
24 import org.hipparchus.exception.MathIllegalStateException;
25 import org.hipparchus.geometry.euclidean.twod.Vector2D;
26 import org.junit.jupiter.api.Test;
27
28 import java.util.ArrayList;
29 import java.util.Collection;
30
31 import static org.junit.jupiter.api.Assertions.assertThrows;
32
33 /**
34 * Test class for MonotoneChain.
35 */
36 class MonotoneChainTest extends ConvexHullGenerator2DAbstractTest {
37
38 @Override
39 protected ConvexHullGenerator2D createConvexHullGenerator(boolean includeCollinearPoints) {
40 return new MonotoneChain(includeCollinearPoints);
41 }
42
43 // ------------------------------------------------------------------------------
44
45 @Test
46 void testConvergenceException() {
47 assertThrows(MathIllegalStateException.class, () -> {
48 final Collection<Vector2D> points = new ArrayList<Vector2D>();
49
50 points.add(new Vector2D(1, 1));
51 points.add(new Vector2D(1, 5));
52 points.add(new Vector2D(0, 7));
53 points.add(new Vector2D(1, 10));
54 points.add(new Vector2D(1, 20));
55 points.add(new Vector2D(20, 20));
56 points.add(new Vector2D(20, 40));
57 points.add(new Vector2D(40, 1));
58
59 @SuppressWarnings("unused")
60 final ConvexHull2D hull = new MonotoneChain(true, 2).generate(points);
61 });
62 }
63
64 }