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 <cmath> |
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16 | |
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17 | #include "core.h" |
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18 | #include "lol/unit.h" |
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19 | |
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20 | namespace lol |
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21 | { |
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22 | |
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23 | LOLUNIT_FIXTURE(RealTest) |
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24 | { |
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25 | LOLUNIT_TEST(FloatToReal) |
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26 | { |
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27 | float a1 = real(0.0f); |
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28 | float a2 = real(-0.0f); |
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29 | float a3 = real(1.0f); |
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30 | float a4 = real(-1.0f); |
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31 | float a5 = real(1.5f); |
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32 | float a6 = real(12345678.0f); |
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33 | |
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34 | LOLUNIT_ASSERT_EQUAL(a1, 0.0f); |
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35 | LOLUNIT_ASSERT_EQUAL(a2, -0.0f); |
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36 | LOLUNIT_ASSERT_EQUAL(a3, 1.0f); |
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37 | LOLUNIT_ASSERT_EQUAL(a4, -1.0f); |
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38 | LOLUNIT_ASSERT_EQUAL(a5, 1.5f); |
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39 | LOLUNIT_ASSERT_EQUAL(a6, 12345678.0f); |
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40 | } |
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41 | |
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42 | LOLUNIT_TEST(DoubleToReal) |
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43 | { |
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44 | double a1 = real(0.0); |
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45 | double a2 = real(-0.0); |
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46 | double a3 = real(1.0); |
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47 | double a4 = real(-1.0); |
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48 | double a5 = real(1.5); |
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49 | double a6 = real(1234567876543210.0); |
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50 | |
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51 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a1, 0.0, 0.0); |
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52 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a2, -0.0, 0.0); |
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53 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a3, 1.0, 0.0); |
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54 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a4, -1.0, 0.0); |
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55 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a5, 1.5, 0.0); |
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56 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a6, 1234567876543210.0, 0.0); |
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57 | } |
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58 | |
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59 | LOLUNIT_TEST(UnaryMinus) |
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60 | { |
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61 | float a1 = - real(1.0f); |
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62 | float a2 = - real(-1.0f); |
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63 | float a3 = - real(0.0f); |
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64 | float a4 = - real(-0.0f); |
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65 | |
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66 | LOLUNIT_ASSERT_EQUAL(a1, -1.0f); |
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67 | LOLUNIT_ASSERT_EQUAL(a2, 1.0f); |
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68 | LOLUNIT_ASSERT_EQUAL(a3, -0.0f); |
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69 | LOLUNIT_ASSERT_EQUAL(a4, 0.0f); |
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70 | } |
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71 | |
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72 | LOLUNIT_TEST(RealComparison) |
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73 | { |
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74 | LOLUNIT_ASSERT(real(1.0f) > real(0.5f)); |
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75 | LOLUNIT_ASSERT(real(1.0f) >= real(0.5f)); |
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76 | LOLUNIT_ASSERT(real(1.0f) >= real(1.0f)); |
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77 | |
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78 | LOLUNIT_ASSERT(real(-1.0f) < real(-0.5f)); |
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79 | LOLUNIT_ASSERT(real(-1.0f) <= real(-0.5f)); |
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80 | LOLUNIT_ASSERT(real(-1.0f) <= real(-1.0f)); |
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81 | |
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82 | LOLUNIT_ASSERT(real(-1.0f) < real(0.5f)); |
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83 | LOLUNIT_ASSERT(real(-0.5f) < real(1.0f)); |
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84 | LOLUNIT_ASSERT(real(-1.0f) <= real(0.5f)); |
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85 | LOLUNIT_ASSERT(real(-0.5f) <= real(1.0f)); |
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86 | |
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87 | LOLUNIT_ASSERT(real(1.0f) > real(-0.5f)); |
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88 | LOLUNIT_ASSERT(real(0.5f) > real(-1.0f)); |
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89 | LOLUNIT_ASSERT(real(1.0f) >= real(-0.5f)); |
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90 | LOLUNIT_ASSERT(real(0.5f) >= real(-1.0f)); |
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91 | } |
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92 | |
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93 | LOLUNIT_TEST(RealAddition) |
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94 | { |
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95 | float a1 = real(1.0f) + real(0.0f); |
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96 | float a2 = real(0.0f) + real(1.0f); |
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97 | float a3 = real(1.0f) + real(1.0f); |
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98 | float a4 = real(-1.0f) + real(-1.0f); |
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99 | float a5 = real(1.0f) + real(0.125f); |
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100 | double a6 = real(3.13609818956293918) |
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101 | + real(0.00005972154828114); |
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102 | float a7 = real(1.0f) + real(-0.125f); |
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103 | double a8 = real(0.10000000002) + real(-2.0e-11); |
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104 | |
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105 | LOLUNIT_ASSERT_EQUAL(a1, 1.0f); |
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106 | LOLUNIT_ASSERT_EQUAL(a2, 1.0f); |
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107 | LOLUNIT_ASSERT_EQUAL(a3, 2.0f); |
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108 | LOLUNIT_ASSERT_EQUAL(a4, -2.0f); |
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109 | LOLUNIT_ASSERT_EQUAL(a5, 1.125f); |
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110 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a6, 3.1361579, 0.000001); |
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111 | LOLUNIT_ASSERT_EQUAL(a7, 0.875f); |
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112 | LOLUNIT_ASSERT_DOUBLES_EQUAL(a8, 0.1, 1.0e-13); |
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113 | } |
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114 | |
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115 | LOLUNIT_TEST(RealSubtraction) |
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116 | { |
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117 | float a1 = real(1.0f) + real(1e20f) - real(1e20f); |
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118 | |
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119 | LOLUNIT_ASSERT_EQUAL(a1, 1.0f); |
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120 | } |
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121 | |
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122 | LOLUNIT_TEST(RealMultiplication) |
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123 | { |
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124 | real x(1.25f); |
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125 | real y(1.5f); |
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126 | real z(1.99999f); |
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127 | real w(-1.5f); |
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128 | |
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129 | float m1 = x * x; |
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130 | float m2 = y * y; |
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131 | float m3 = z * z; |
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132 | float m4 = w * w; |
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133 | |
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134 | LOLUNIT_ASSERT_EQUAL(m1, 1.25f * 1.25f); |
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135 | LOLUNIT_ASSERT_EQUAL(m2, 1.5f * 1.5f); |
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136 | LOLUNIT_ASSERT_EQUAL(m3, 1.99999f * 1.99999f); |
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137 | LOLUNIT_ASSERT_EQUAL(m4, -1.5f * -1.5f); |
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138 | } |
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139 | |
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140 | LOLUNIT_TEST(RealDivision) |
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141 | { |
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142 | real a1(1.0f); |
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143 | real a2(2.0f); |
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144 | |
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145 | float m1 = a1 / a1; |
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146 | float m2 = a2 / a1; |
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147 | float m3 = a1 / a2; |
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148 | float m4 = a2 / a2; |
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149 | float m5 = a1 / -a2; |
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150 | |
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151 | LOLUNIT_ASSERT_EQUAL(m1, 1.0f); |
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152 | LOLUNIT_ASSERT_EQUAL(m2, 2.0f); |
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153 | LOLUNIT_ASSERT_EQUAL(m3, 0.5f); |
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154 | LOLUNIT_ASSERT_EQUAL(m4, 1.0f); |
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155 | LOLUNIT_ASSERT_EQUAL(m5, -0.5f); |
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156 | } |
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157 | }; |
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158 | |
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159 | } /* namespace lol */ |
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160 | |
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