tests.math_test source code

1 module tests.math_test;
2 
3 import Math = math;
4 import std.stdio;
5 import rounding_mode;
6 import tests.dunit_tests;
7 
8 import vector_2d;
9 import vector_3d;
10 import vector_4d;
11 
12 import rounding_mode;
13 
14 /*
15  * The MIT License
16  *
17  * Copyright (c) 2018-2022 JOML.
18  @#$%@$% Translated by jordan4ibanez
19  *
20  * Permission is hereby granted, free of charge, to any person obtaining a copy
21  * of this software and associated documentation files (the "Software"), to deal
22  * in the Software without restriction, including without limitation the rights
23  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
24  * copies of the Software, and to permit persons to whom the Software is
25  * furnished to do so, subject to the following conditions:
26  *
27  * The above copyright notice and this permission notice shall be included in
28  * all copies or substantial portions of the Software.
29  *
30  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
31  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
32  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
33  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
34  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
35  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
36  * THE SOFTWARE.
37  */
38 
39 /**
40  * Tests for Math.vecLength - addressing <a href="https://github.com/JOML-CI/JOML/issues/131">Issue #131</a>
41  *
42  * @author F. Neurath
43  */
44 
45 unittest {
46     writeln("\nBEGIN MATH LIBRARY\n");
47 
48     writeln("BEGINNING CLAMP TEST");
49     // Integer value tests
50     assert(Math.clamp(10,20,0) == 10);
51     assert(Math.clamp(10,20,12) == 12);
52     assert(Math.clamp(10,20,30) == 20);
53 
54     // double value tests
55     assertEquals(Math.clamp(10.0,20.0,0.0),10.0, 1000);  // .0001f 10000
56     assertEquals(Math.clamp(10.0,20.0,12.0),12.0, 1000); // .0001f 10000
57     assertEquals(Math.clamp(10.0,20.0,30.0),20.0, 1000); // .0001f 10000
58     writeln("PASSED!");
59 
60     
61     writeln("BEGINNING VECTOR LENGTH TEST");
62     // Integer value tests
63     assertEquals(5., Vector2d.length(4, 3), 1000);
64     assertEquals(6., Vector3d.length(2, -4, 4), 1000);
65     assertEquals(3., Vector4d.length(2, -1, 0, -2), 1000);
66 
67     // Floating point value tests
68     assertEquals(Math.sqrt(.41), Vector2d.length(.4, -.5), 1000);
69     assertEquals(Math.sqrt(.3), Vector3d.length(.1, -.5, .2), 1000);
70     assertEquals(1., Vector4d.length(.5, .5, .5, .5), 1000);
71 
72     writeln("PASSED!");
73     writeln("BEGINNING VECTOR INFINITE TEST");
74 
75     // double point value tests
76     assertFalse(Math.isFinite(double.nan));
77     assertTrue(Math.isFinite(1.0));
78     assertTrue(Math.isFinite(-1.0));
79     assertFalse(Math.isFinite(double.infinity));
80     assertFalse(Math.isFinite(-double.infinity));
81 
82     writeln("PASSED!");
83     writeln("BEGINNING ROUNDING TEST");
84     
85     // TRUNCATE
86     assertEquals(0, Math.roundUsing(0.2, RoundingMode.TRUNCATE));
87     assertEquals(0, Math.roundUsing(0.5, RoundingMode.TRUNCATE));
88     assertEquals(0, Math.roundUsing(0.9, RoundingMode.TRUNCATE));
89     assertEquals(1, Math.roundUsing(1.0, RoundingMode.TRUNCATE));
90     assertEquals(0, Math.roundUsing(-0.2, RoundingMode.TRUNCATE));
91     assertEquals(0, Math.roundUsing(-0.5, RoundingMode.TRUNCATE));
92     assertEquals(0, Math.roundUsing(-0.9, RoundingMode.TRUNCATE));
93     assertEquals(-1, Math.roundUsing(-1.0, RoundingMode.TRUNCATE));
94     // CEILING
95     assertEquals(1, Math.roundUsing(0.2, RoundingMode.CEILING));
96     assertEquals(1, Math.roundUsing(0.5, RoundingMode.CEILING));
97     assertEquals(1, Math.roundUsing(0.9, RoundingMode.CEILING));
98     assertEquals(1, Math.roundUsing(1.0, RoundingMode.CEILING));
99     assertEquals(0, Math.roundUsing(-0.2, RoundingMode.CEILING));
100     assertEquals(0, Math.roundUsing(-0.5, RoundingMode.CEILING));
101     assertEquals(0, Math.roundUsing(-0.9, RoundingMode.CEILING));
102     assertEquals(-1, Math.roundUsing(-1.0, RoundingMode.CEILING));
103     // FLOOR
104     assertEquals(0, Math.roundUsing(0.2, RoundingMode.FLOOR));
105     assertEquals(0, Math.roundUsing(0.5, RoundingMode.FLOOR));
106     assertEquals(0, Math.roundUsing(0.9, RoundingMode.FLOOR));
107     assertEquals(1, Math.roundUsing(1.0, RoundingMode.FLOOR));
108     assertEquals(-1, Math.roundUsing(-0.2, RoundingMode.FLOOR));
109     assertEquals(-1, Math.roundUsing(-0.5, RoundingMode.FLOOR));
110     assertEquals(-1, Math.roundUsing(-0.9, RoundingMode.FLOOR));
111     assertEquals(-1, Math.roundUsing(-1.0, RoundingMode.FLOOR));
112     // HALF_DOWN
113     assertEquals(0, Math.roundUsing(0.2, RoundingMode.HALF_DOWN));
114     assertEquals(0, Math.roundUsing(0.5, RoundingMode.HALF_DOWN));
115     assertEquals(1, Math.roundUsing(0.9, RoundingMode.HALF_DOWN));
116     assertEquals(1, Math.roundUsing(1.0, RoundingMode.HALF_DOWN));
117     assertEquals(0, Math.roundUsing(-0.2, RoundingMode.HALF_DOWN));
118     assertEquals(0, Math.roundUsing(-0.5, RoundingMode.HALF_DOWN));
119     assertEquals(-1, Math.roundUsing(-0.9, RoundingMode.HALF_DOWN));
120     assertEquals(-1, Math.roundUsing(-1.0, RoundingMode.HALF_DOWN));
121     // HALF_UP
122     assertEquals(0, Math.roundUsing(0.2, RoundingMode.HALF_UP));
123     assertEquals(1, Math.roundUsing(0.5, RoundingMode.HALF_UP));
124     assertEquals(1, Math.roundUsing(0.9, RoundingMode.HALF_UP));
125     assertEquals(1, Math.roundUsing(1.0, RoundingMode.HALF_UP));
126     assertEquals(0, Math.roundUsing(-0.2, RoundingMode.HALF_UP));
127     assertEquals(-1, Math.roundUsing(-0.5, RoundingMode.HALF_UP));
128     assertEquals(-1, Math.roundUsing(-0.9, RoundingMode.HALF_UP));
129     assertEquals(-1, Math.roundUsing(-1.0, RoundingMode.HALF_UP));
130     // HALF_EVEN
131     assertEquals(0, Math.roundUsing(0.2, RoundingMode.HALF_EVEN));
132     assertEquals(0, Math.roundUsing(0.5, RoundingMode.HALF_EVEN));
133     assertEquals(1, Math.roundUsing(0.9, RoundingMode.HALF_EVEN));
134     assertEquals(1, Math.roundUsing(1.0, RoundingMode.HALF_EVEN));
135     assertEquals(0, Math.roundUsing(-0.2, RoundingMode.HALF_EVEN));
136     assertEquals(0, Math.roundUsing(-0.5, RoundingMode.HALF_EVEN));
137     assertEquals(-1, Math.roundUsing(-0.9, RoundingMode.HALF_EVEN));
138     assertEquals(-1, Math.roundUsing(-1.0, RoundingMode.HALF_EVEN));
139     writeln("PASSED!");
140 }