kopia lustrzana https://github.com/vsamy/DiFipp
97 wiersze
3.6 KiB
C++
97 wiersze
3.6 KiB
C++
// Copyright (c) 2019, Vincent SAMY
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// The views and conclusions contained in the software and documentation are those
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// of the authors and should not be interpreted as representing official policies,
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// either expressed or implied, of the FreeBSD Project.
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#pragma once
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#include "differentiators.h"
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#include "noisy_function_generator.h"
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#include <catch2/catch.hpp>
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#include <limits>
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constexpr const int STEPS = 200;
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constexpr const int SIN_FREQUENCY = 60;
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using namespace difi;
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template <typename T>
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struct TestFun {
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vectX_t<T> f;
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vectX_t<T> d;
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int center;
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double eps;
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};
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template <typename T, typename Filter>
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struct TestRunner {
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void operator()(const TestFun<T>& tf, Filter& f)
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{
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for (int i = 0; i < 50; ++i)
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f.step(tf.f(i)); // First initialize, some steps
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for (int i = 20; i < STEPS; ++i)
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REQUIRE_SMALL(std::abs(f.step(tf.f(i)) - tf.d(i - tf.center)), tf.eps);
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}
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};
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template <typename T, size_t Ind, typename... Ts>
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struct Tester {
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void operator()(const TestFun<T>& tf, std::tuple<Ts...> f)
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{
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TestRunner(tf, std::get<Ind>(f));
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Tester<T, Ind - 1, Ts...>(tf, f);
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}
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};
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template <typename T, typename... Ts>
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struct Tester<T, 0, Ts...> {
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void operator()(const TestFun<T>& tf, std::tuple<Ts...> f)
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{
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TestRunner(tf, std::get<0>(f));
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}
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};
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template <typename T, size_t N>
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using centralList = std::tuple<CentralDiff<T, N>, LowNoiseLanczosDiff<T, N>, SuperLowNoiseLanczosDiff<T, N>, CenteredNoiseRobust2Diff<T, N>, CenteredNoiseRobust4Diff<T, N>>;
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TEMPLATE_TEST_CASE("Sinus time-fixed central derivative", "[sin][central]", float, double)
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{
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FunctionGenerator<TestType> fg = sinGenerator<TestType>(STEPS, SIN_FREQUENCY);
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auto list7 = centralList<TestType, 7>{};
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TestFun<TestType> list7Param = {std::get<0>(fg), std::get<2>(fg), 3, std::numeric_limits<TestType>::epsilon() * 100};
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TestFun<TestType> list7NoisyParam = {std::get<1>(fg), std::get<2>(fg), 3, std::numeric_limits<TestType>::epsilon() * 100};
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auto list9 = centralList<TestType, 9>{};
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TestFun<TestType> list9Param = {std::get<0>(fg), std::get<2>(fg), 4, std::numeric_limits<TestType>::epsilon() * 100};
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TestFun<TestType> list9NoisyParam = {std::get<1>(fg), std::get<2>(fg), 4, std::numeric_limits<TestType>::epsilon() * 100};
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// Check no noisy function
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// Check for noisy function
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}
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