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