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 "core.h" |
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16 | #include "lol/unit.h" |
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17 | |
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18 | namespace lol |
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19 | { |
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20 | |
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21 | LOLUNIT_FIXTURE(ComplexTest) |
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22 | { |
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23 | void SetUp() {} |
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24 | |
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25 | void TearDown() {} |
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26 | |
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27 | LOLUNIT_TEST(Equality) |
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28 | { |
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29 | cmplx a2(1.0f, 2.0f); |
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30 | cmplx b2(0.0f, 2.0f); |
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31 | cmplx c2(1.0f, 0.0f); |
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32 | |
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33 | LOLUNIT_ASSERT_EQUAL(a2, a2); |
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34 | LOLUNIT_ASSERT_NOT_DIFFERENT(a2, a2); |
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35 | |
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36 | LOLUNIT_ASSERT_DIFFERENT(a2, b2); |
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37 | LOLUNIT_ASSERT_NOT_EQUAL(a2, b2); |
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38 | LOLUNIT_ASSERT_DIFFERENT(a2, c2); |
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39 | LOLUNIT_ASSERT_NOT_EQUAL(a2, c2); |
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40 | } |
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41 | |
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42 | LOLUNIT_TEST(UnaryMinus) |
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43 | { |
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44 | cmplx a(1.0f, 3.0f); |
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45 | cmplx b(-1.0f, -3.0f); |
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46 | |
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47 | LOLUNIT_ASSERT_EQUAL(a, -b); |
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48 | LOLUNIT_ASSERT_EQUAL(-a, b); |
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49 | } |
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50 | |
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51 | LOLUNIT_TEST(Conjugate) |
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52 | { |
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53 | cmplx a(1.0f, 3.0f); |
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54 | cmplx b(1.0f, -3.0f); |
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55 | |
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56 | LOLUNIT_ASSERT_EQUAL(a, ~b); |
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57 | LOLUNIT_ASSERT_EQUAL(~a, b); |
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58 | } |
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59 | |
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60 | LOLUNIT_TEST(Norm) |
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61 | { |
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62 | cmplx a(3.0f, -4.0f); |
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63 | |
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64 | LOLUNIT_ASSERT_EQUAL(a.norm(), 5.0f); |
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65 | |
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66 | cmplx b = a * ~a; |
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67 | cmplx c = a.norm() * a.norm(); |
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68 | |
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69 | LOLUNIT_ASSERT_EQUAL(b, c); |
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70 | |
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71 | cmplx d(5.0f, 12.0f); |
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72 | |
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73 | LOLUNIT_ASSERT_EQUAL(d.norm(), 13.0f); |
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74 | LOLUNIT_ASSERT_EQUAL((a * d).norm(), a.norm() * d.norm()); |
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75 | } |
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76 | |
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77 | LOLUNIT_TEST(Base) |
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78 | { |
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79 | cmplx one(1.0f, 0.0f); |
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80 | cmplx i(0.0f, 1.0f); |
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81 | |
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82 | LOLUNIT_ASSERT_EQUAL(one.norm(), 1.0f); |
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83 | LOLUNIT_ASSERT_EQUAL(i.norm(), 1.0f); |
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84 | |
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85 | LOLUNIT_ASSERT_EQUAL(i * i, -one); |
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86 | } |
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87 | |
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88 | LOLUNIT_TEST(Normalize) |
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89 | { |
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90 | cmplx a(3.0f, -4.0f); |
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91 | cmplx b = normalize(a); |
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92 | |
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93 | LOLUNIT_ASSERT_DOUBLES_EQUAL(b.norm(), 1.0, 1e-8); |
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94 | } |
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95 | |
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96 | LOLUNIT_TEST(Reciprocal) |
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97 | { |
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98 | cmplx a(3.0f, -4.0f); |
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99 | cmplx b = re(a); |
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100 | |
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101 | LOLUNIT_ASSERT_EQUAL(a * b, b * a); |
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102 | |
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103 | cmplx c = 1.0f; |
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104 | |
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105 | LOLUNIT_ASSERT_EQUAL(a * b, c); |
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106 | } |
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107 | }; |
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108 | |
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109 | } /* namespace lol */ |
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110 | |
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