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157 lines
4.1 KiB
C++
157 lines
4.1 KiB
C++
/**
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* @file
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* @brief Unit tests for openshot::Fraction
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* @author Jonathan Thomas <jonathan@openshot.org>
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*
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* @ref License
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*/
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/* LICENSE
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*
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* Copyright (c) 2008-2019 OpenShot Studios, LLC
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* <http://www.openshotstudios.com/>. This file is part of
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* OpenShot Library (libopenshot), an open-source project dedicated to
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* delivering high quality video editing and animation solutions to the
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* world. For more information visit <http://www.openshot.org/>.
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*
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* OpenShot Library (libopenshot) is free software: you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* OpenShot Library (libopenshot) is distributed in the hope that it will be
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* useful, 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 for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with OpenShot Library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "UnitTest++.h"
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// Prevent name clashes with juce::UnitTest
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#define DONT_SET_USING_JUCE_NAMESPACE 1
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#include "Fraction.h"
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using namespace std;
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using namespace openshot;
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SUITE(Fraction)
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{
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TEST(Constructors)
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{
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// Create a default fraction (should be 1/1)
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Fraction f1;
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// Check default fraction
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CHECK_EQUAL(1, f1.num);
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CHECK_EQUAL(1, f1.den);
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CHECK_CLOSE(1.0f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.0f, f1.ToDouble(), 0.00001);
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// reduce fraction
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f1.Reduce();
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// Check the reduced fraction
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CHECK_EQUAL(1, f1.num);
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CHECK_EQUAL(1, f1.den);
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CHECK_CLOSE(1.0f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.0f, f1.ToDouble(), 0.00001);
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}
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TEST(Alt_Constructors)
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{
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// Use the delegating constructor for std::pair
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std::pair<int, int> args{24, 1};
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Fraction f1(args);
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CHECK_EQUAL(24, f1.num);
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CHECK_EQUAL(1, f1.den);
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CHECK_CLOSE(24.0f, f1.ToFloat(), 0.00001);
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// Use the delegating constructor for std::vector
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std::vector<int> v{30000, 1001};
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Fraction f2(v);
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CHECK_CLOSE(30000.0/1001.0, f2.ToFloat(), 0.00001);
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// Use the delegating constructor for std::map<std::string, int>
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std::map<std::string, int> dict;
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dict.insert({"num", 24000});
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dict.insert({"den", 1001});
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Fraction f3(dict);
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CHECK_EQUAL(1001, f3.den);
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CHECK_EQUAL(24000, f3.num);
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CHECK_CLOSE(1001.0/24000.0, f3.Reciprocal().ToFloat(), 0.00001);
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}
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TEST(WxH_640_480)
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{
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// Create fraction
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Fraction f1(640, 480);
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// Check fraction
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CHECK_EQUAL(640, f1.num);
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CHECK_EQUAL(480, f1.den);
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CHECK_CLOSE(1.33333f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.33333f, f1.ToDouble(), 0.00001);
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// reduce fraction
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f1.Reduce();
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// Check the reduced fraction
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CHECK_EQUAL(4, f1.num);
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CHECK_EQUAL(3, f1.den);
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CHECK_CLOSE(1.33333f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.33333f, f1.ToDouble(), 0.00001);
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}
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TEST(WxH_1280_720)
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{
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// Create fraction
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Fraction f1(1280, 720);
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// Check fraction
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CHECK_EQUAL(1280, f1.num);
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CHECK_EQUAL(720, f1.den);
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CHECK_CLOSE(1.77777f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.77777f, f1.ToDouble(), 0.00001);
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// reduce fraction
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f1.Reduce();
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// Check the reduced fraction
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CHECK_EQUAL(16, f1.num);
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CHECK_EQUAL(9, f1.den);
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CHECK_CLOSE(1.77777f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.77777f, f1.ToDouble(), 0.00001);
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}
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TEST(Reciprocal)
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{
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// Create fraction
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Fraction f1(1280, 720);
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// Check fraction
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CHECK_EQUAL(1280, f1.num);
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CHECK_EQUAL(720, f1.den);
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CHECK_CLOSE(1.77777f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.77777f, f1.ToDouble(), 0.00001);
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// Get the reciprocal of the fraction (i.e. flip the fraction)
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Fraction f2 = f1.Reciprocal();
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// Check the reduced fraction
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CHECK_EQUAL(720, f2.num);
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CHECK_EQUAL(1280, f2.den);
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CHECK_CLOSE(0.5625f, f2.ToFloat(), 0.00001);
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CHECK_CLOSE(0.5625f, f2.ToDouble(), 0.00001);
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// Re-Check the original fraction (to be sure it hasn't changed)
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CHECK_EQUAL(1280, f1.num);
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CHECK_EQUAL(720, f1.den);
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CHECK_CLOSE(1.77777f, f1.ToFloat(), 0.00001);
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CHECK_CLOSE(1.77777f, f1.ToDouble(), 0.00001);
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}
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} // SUITE
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