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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 java.util.ArrayList;
25  import java.util.Collection;
26  
27  import org.hipparchus.exception.MathIllegalStateException;
28  import org.hipparchus.geometry.euclidean.twod.Vector2D;
29  import org.junit.Test;
30  
31  /**
32   * Test class for MonotoneChain.
33   */
34  public class MonotoneChainTest extends ConvexHullGenerator2DAbstractTest {
35  
36      @Override
37      protected ConvexHullGenerator2D createConvexHullGenerator(boolean includeCollinearPoints) {
38          return new MonotoneChain(includeCollinearPoints);
39      }
40  
41      // ------------------------------------------------------------------------------
42  
43      @Test(expected=MathIllegalStateException.class)
44      public void testConvergenceException() {
45          final Collection<Vector2D> points = new ArrayList<Vector2D>();
46  
47          points.add(new Vector2D(1, 1));
48          points.add(new Vector2D(1, 5));
49          points.add(new Vector2D(0, 7));
50          points.add(new Vector2D(1, 10));
51          points.add(new Vector2D(1, 20));
52          points.add(new Vector2D(20, 20));
53          points.add(new Vector2D(20, 40));
54          points.add(new Vector2D(40, 1));
55  
56          @SuppressWarnings("unused")
57          final ConvexHull2D hull = new MonotoneChain(true, 2).generate(points);
58      }
59  
60  }