| 1 | // |
|---|
| 2 | // Lol Engine |
|---|
| 3 | // |
|---|
| 4 | // Copyright: (c) 2010-2011 Sam Hocevar <sam@hocevar.net> |
|---|
| 5 | // This program is free software; you can redistribute it and/or |
|---|
| 6 | // modify it under the terms of the Do What The Fuck You Want To |
|---|
| 7 | // Public License, Version 2, as published by Sam Hocevar. See |
|---|
| 8 | // http://sam.zoy.org/projects/COPYING.WTFPL for more details. |
|---|
| 9 | // |
|---|
| 10 | |
|---|
| 11 | #if defined HAVE_CONFIG_H |
|---|
| 12 | # include "config.h" |
|---|
| 13 | #endif |
|---|
| 14 | |
|---|
| 15 | #include <cppunit/extensions/HelperMacros.h> |
|---|
| 16 | #include <cppunit/TestCaller.h> |
|---|
| 17 | #include <cppunit/TestCase.h> |
|---|
| 18 | #include <cppunit/TestSuite.h> |
|---|
| 19 | |
|---|
| 20 | #include <cmath> |
|---|
| 21 | |
|---|
| 22 | #include "core.h" |
|---|
| 23 | |
|---|
| 24 | namespace lol |
|---|
| 25 | { |
|---|
| 26 | |
|---|
| 27 | class TrigTest : public CppUnit::TestCase |
|---|
| 28 | { |
|---|
| 29 | CPPUNIT_TEST_SUITE(TrigTest); |
|---|
| 30 | CPPUNIT_TEST(test_sin); |
|---|
| 31 | CPPUNIT_TEST_SUITE_END(); |
|---|
| 32 | |
|---|
| 33 | public: |
|---|
| 34 | TrigTest() : CppUnit::TestCase("Trigonometry Test") {} |
|---|
| 35 | |
|---|
| 36 | void setUp() {} |
|---|
| 37 | |
|---|
| 38 | void tearDown() {} |
|---|
| 39 | |
|---|
| 40 | void test_sin() |
|---|
| 41 | { |
|---|
| 42 | for (int i = -10000; i < 10000; i++) |
|---|
| 43 | { |
|---|
| 44 | double f = (double)i * (1.0 / 1000.0); |
|---|
| 45 | #if defined __GNUC__ |
|---|
| 46 | double a = __builtin_sin(f); |
|---|
| 47 | #else |
|---|
| 48 | double a = sin(f); |
|---|
| 49 | #endif |
|---|
| 50 | double b = lol_sin(f); |
|---|
| 51 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
|---|
| 52 | } |
|---|
| 53 | |
|---|
| 54 | for (int i = -10000; i < 10000; i++) |
|---|
| 55 | { |
|---|
| 56 | double f = (double)i * (1.0 / 100000.0); |
|---|
| 57 | #if defined __GNUC__ |
|---|
| 58 | double a = __builtin_sin(f); |
|---|
| 59 | #else |
|---|
| 60 | double a = sin(f); |
|---|
| 61 | #endif |
|---|
| 62 | double b = lol_sin(f); |
|---|
| 63 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
|---|
| 64 | } |
|---|
| 65 | |
|---|
| 66 | for (int i = -10000; i < 10000; i++) |
|---|
| 67 | { |
|---|
| 68 | double f = (double)i * (1.0 / 1000.0); |
|---|
| 69 | #if defined __GNUC__ |
|---|
| 70 | double a = __builtin_cos(f); |
|---|
| 71 | #else |
|---|
| 72 | double a = cos(f); |
|---|
| 73 | #endif |
|---|
| 74 | double b = lol_cos(f); |
|---|
| 75 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
|---|
| 76 | } |
|---|
| 77 | |
|---|
| 78 | for (int i = -10000; i < 10000; i++) |
|---|
| 79 | { |
|---|
| 80 | double f = (double)i * (1.0 / 100000.0); |
|---|
| 81 | #if defined __GNUC__ |
|---|
| 82 | double a = __builtin_cos(f); |
|---|
| 83 | #else |
|---|
| 84 | double a = cos(f); |
|---|
| 85 | #endif |
|---|
| 86 | double b = lol_cos(f); |
|---|
| 87 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
|---|
| 88 | } |
|---|
| 89 | |
|---|
| 90 | for (int i = -10000; i < 10000; i++) |
|---|
| 91 | { |
|---|
| 92 | double f = (double)i * (1.0 / 1000.0); |
|---|
| 93 | #if defined __GNUC__ |
|---|
| 94 | double a1 = __builtin_sin(f); |
|---|
| 95 | double a2 = __builtin_cos(f); |
|---|
| 96 | #else |
|---|
| 97 | double a1 = sin(f); |
|---|
| 98 | double a2 = cos(f); |
|---|
| 99 | #endif |
|---|
| 100 | double b1, b2; |
|---|
| 101 | lol_sincos(f, &b1, &b2); |
|---|
| 102 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a1, b1, fabs(f) * 1e-11); |
|---|
| 103 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a2, b2, fabs(f) * 1e-11); |
|---|
| 104 | } |
|---|
| 105 | |
|---|
| 106 | for (int i = -10000; i < 10000; i++) |
|---|
| 107 | { |
|---|
| 108 | double f = (double)i * (1.0 / 100000.0); |
|---|
| 109 | #if defined __GNUC__ |
|---|
| 110 | double a1 = __builtin_sin(f); |
|---|
| 111 | double a2 = __builtin_cos(f); |
|---|
| 112 | #else |
|---|
| 113 | double a1 = sin(f); |
|---|
| 114 | double a2 = cos(f); |
|---|
| 115 | #endif |
|---|
| 116 | double b1, b2; |
|---|
| 117 | lol_sincos(f, &b1, &b2); |
|---|
| 118 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a1, b1, fabs(f) * 1e-11); |
|---|
| 119 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a2, b2, fabs(f) * 1e-11); |
|---|
| 120 | } |
|---|
| 121 | |
|---|
| 122 | for (int i = -100000; i < 100000; i++) |
|---|
| 123 | { |
|---|
| 124 | double f = (double)i * (1.0 / 10000.0); |
|---|
| 125 | #if defined __GNUC__ |
|---|
| 126 | double a = __builtin_tan(f); |
|---|
| 127 | #else |
|---|
| 128 | double a = tan(f); |
|---|
| 129 | #endif |
|---|
| 130 | double b = lol_tan(f); |
|---|
| 131 | if (fabs(a) > 1e4) |
|---|
| 132 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * fabs(a) * 1e-11); |
|---|
| 133 | else if (fabs(a) > 1.0) |
|---|
| 134 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * 1e-11); |
|---|
| 135 | else |
|---|
| 136 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
|---|
| 137 | } |
|---|
| 138 | |
|---|
| 139 | for (int i = -10000; i < 10000; i++) |
|---|
| 140 | { |
|---|
| 141 | double f = (double)i * (1.0 / 100000.0); |
|---|
| 142 | #if defined __GNUC__ |
|---|
| 143 | double a = __builtin_tan(f); |
|---|
| 144 | #else |
|---|
| 145 | double a = tan(f); |
|---|
| 146 | #endif |
|---|
| 147 | double b = lol_tan(f); |
|---|
| 148 | if (fabs(a) > 1e4) |
|---|
| 149 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * fabs(a) * 1e-11); |
|---|
| 150 | else if (fabs(a) > 1.0) |
|---|
| 151 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(a) * 1e-11); |
|---|
| 152 | else |
|---|
| 153 | CPPUNIT_ASSERT_DOUBLES_EQUAL(a, b, fabs(f) * 1e-11); |
|---|
| 154 | } |
|---|
| 155 | } |
|---|
| 156 | }; |
|---|
| 157 | |
|---|
| 158 | CPPUNIT_TEST_SUITE_REGISTRATION(TrigTest); |
|---|
| 159 | |
|---|
| 160 | } /* namespace lol */ |
|---|
| 161 | |
|---|
