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  1. Project Clover database Fri Dec 6 2024 13:47:14 GMT
  2. Package jalview.ext.android

File SparseDoubleArrayTest.java

 

Code metrics

2
23
3
1
73
43
4
0.17
7.67
3
1.33

Classes

Class Line # Actions
SparseDoubleArrayTest 27 23 4
0.00%
 

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1    /*
2    * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3    * Copyright (C) $$Year-Rel$$ The Jalview Authors
4    *
5    * This file is part of Jalview.
6    *
7    * Jalview is free software: you can redistribute it and/or
8    * modify it under the terms of the GNU General Public License
9    * as published by the Free Software Foundation, either version 3
10    * of the License, or (at your option) any later version.
11    *
12    * Jalview is distributed in the hope that it will be useful, but
13    * WITHOUT ANY WARRANTY; without even the implied warranty
14    * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15    * PURPOSE. See the GNU General Public License for more details.
16    *
17    * You should have received a copy of the GNU General Public License
18    * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19    * The Jalview Authors are detailed in the 'AUTHORS' file.
20    */
21    package jalview.ext.android;
22   
23    import static org.testng.Assert.assertEquals;
24   
25    import org.testng.annotations.Test;
26   
 
27    public class SparseDoubleArrayTest
28    {
29   
 
30  0 toggle @Test
31    public void testConstructor()
32    {
33  0 double[] d = new double[] { 0d, 0d, 1.2d, 0d, 0d, 3.4d };
34  0 SparseDoubleArray s = new SparseDoubleArray(d);
35  0 for (int i = 0; i < d.length; i++)
36    {
37  0 assertEquals(s.get(i), d[i], "At [" + i + "]");
38    }
39    }
40   
 
41  0 toggle @Test
42    public void testAdd()
43    {
44  0 double[] d = new double[] { 0d, 0d, 1.2d, 0d, 0d, 3.4d };
45  0 SparseDoubleArray s = new SparseDoubleArray(d);
46    // add to zero (absent)
47  0 s.add(0, 3.2d);
48  0 assertEquals(s.get(0), 3.2d);
49    // add to non-zero
50  0 s.add(0, 2.5d);
51  0 assertEquals(s.get(0), 5.7d);
52    // add negative value
53  0 s.add(2, -5.3d);
54  0 assertEquals(s.get(2), -4.1d);
55    // add to unset value
56  0 s.add(12, 9.8d);
57  0 assertEquals(s.get(12), 9.8d);
58    }
59   
 
60  0 toggle @Test
61    public void testDivide()
62    {
63  0 double delta = 1.0e-10;
64  0 double[] d = new double[] { 0d, 2.4d, 1.2d, 0d, -4.8d, -3.6d };
65  0 SparseDoubleArray s = new SparseDoubleArray(d);
66  0 assertEquals(s.divide(0, 1d), 0d); // no such entry
67  0 assertEquals(s.divide(2, 0d), 0d); // zero divisor
68  0 assertEquals(s.divide(1, 2d), 1.2d, delta); // + / +
69  0 assertEquals(s.divide(2, -2d), -0.6d, delta); // + / -
70  0 assertEquals(s.divide(4, 3d), -1.6d, delta); // - / +
71  0 assertEquals(s.divide(5, -3d), 1.2d, delta); // - / -
72    }
73    }