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101 lines
3.9 KiB
101 lines
3.9 KiB
/* |
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Copyright © 2010, 2011, 2012 Vladimír Vondruš <mosra@centrum.cz> |
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This file is part of Magnum. |
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Magnum is free software: you can redistribute it and/or modify |
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it under the terms of the GNU Lesser General Public License version 3 |
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only, as published by the Free Software Foundation. |
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Magnum is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU Lesser General Public License version 3 for more details. |
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*/ |
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#include "MathTest.h" |
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#include "Math.h" |
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using namespace std; |
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CORRADE_TEST_MAIN(Magnum::Math::Test::MathTest) |
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namespace Magnum { namespace Math { namespace Test { |
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MathTest::MathTest() { |
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addTests(&MathTest::normalize, |
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&MathTest::denormalize, |
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&MathTest::clamp, |
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&MathTest::pow, |
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&MathTest::log); |
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} |
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void MathTest::normalize() { |
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/* Range for signed and unsigned */ |
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CORRADE_COMPARE((Math::normalize<float, char>(-128)), 0.0f); |
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CORRADE_COMPARE((Math::normalize<float, char>(127)), 1.0f); |
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CORRADE_COMPARE((Math::normalize<float, unsigned char>(0)), 0.0f); |
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CORRADE_COMPARE((Math::normalize<float, unsigned char>(255)), 1.0f); |
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/* Between */ |
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CORRADE_COMPARE((Math::normalize<float, short>(16384)), 0.750011f); |
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CORRADE_COMPARE((Math::normalize<float, short>(-16384)), 0.250004f); |
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/* Test overflow for large types */ |
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CORRADE_COMPARE((Math::normalize<float, int>(numeric_limits<int>::min())), 0.0f); |
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CORRADE_COMPARE((Math::normalize<float, int>(numeric_limits<int>::max())), 1.0f); |
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CORRADE_COMPARE((Math::normalize<float, unsigned int>(0)), 0.0f); |
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CORRADE_COMPARE((Math::normalize<float, unsigned int>(numeric_limits<unsigned int>::max())), 1.0f); |
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CORRADE_COMPARE((Math::normalize<double, long long>(numeric_limits<long long>::min())), 0.0); |
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CORRADE_COMPARE((Math::normalize<double, long long>(numeric_limits<long long>::max())), 1.0); |
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CORRADE_COMPARE((Math::normalize<double, unsigned long long>(0)), 0.0); |
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CORRADE_COMPARE((Math::normalize<double, unsigned long long>(numeric_limits<unsigned long long>::max())), 1.0); |
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} |
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void MathTest::denormalize() { |
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/* Range for signed and unsigned */ |
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CORRADE_COMPARE(Math::denormalize<char>(0.0f), -128); |
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CORRADE_COMPARE(Math::denormalize<char>(1.0f), 127); |
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CORRADE_COMPARE(Math::denormalize<unsigned char>(0.0f), 0); |
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CORRADE_COMPARE(Math::denormalize<unsigned char>(1.0f), 255); |
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/* Between */ |
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CORRADE_COMPARE(Math::denormalize<short>(0.33f), -11141); |
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CORRADE_COMPARE(Math::denormalize<short>(0.66f), 10485); |
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/* Test overflow for large types */ |
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CORRADE_COMPARE(Math::denormalize<int>(0.0f), numeric_limits<int>::min()); |
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CORRADE_COMPARE(Math::denormalize<unsigned int>(0.0f), 0); |
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CORRADE_COMPARE(Math::denormalize<long long>(0.0), numeric_limits<long long>::min()); |
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CORRADE_COMPARE(Math::denormalize<unsigned long long>(0.0), 0); |
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CORRADE_COMPARE(Math::denormalize<int>(1.0), numeric_limits<int>::max()); |
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CORRADE_COMPARE(Math::denormalize<unsigned int>(1.0), numeric_limits<unsigned int>::max()); |
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{ |
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CORRADE_EXPECT_FAIL("Denormalize doesn't work for large types well"); |
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CORRADE_COMPARE((Math::denormalize<long long, long double>(1.0)), numeric_limits<long long>::max()); |
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CORRADE_COMPARE((Math::denormalize<unsigned long long, long double>(1.0)), numeric_limits<unsigned long long>::max()); |
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} |
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} |
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void MathTest::clamp() { |
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CORRADE_COMPARE(Math::clamp(0.5f, -1.0f, 5.0f), 0.5f); |
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CORRADE_COMPARE(Math::clamp(-1.6f, -1.0f, 5.0f), -1.0f); |
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CORRADE_COMPARE(Math::clamp(9.5f, -1.0f, 5.0f), 5.0f); |
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} |
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void MathTest::pow() { |
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CORRADE_COMPARE(Math::pow<10>(2ul), 1024ul); |
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CORRADE_COMPARE(Math::pow<0>(3ul), 1ul); |
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CORRADE_COMPARE(Math::pow<2>(2.0f), 4.0f); |
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} |
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void MathTest::log() { |
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CORRADE_COMPARE(Math::log(2, 256), 8ul); |
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CORRADE_COMPARE(Math::log(256, 2), 0ul); |
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} |
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}}}
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