rotgen/test/unit/matrix/inverse.cpp
Jules Pénuchot 4a7aa08cdb Testing functional API only (oss/rotgen#17)
Co-authored-by: Jules Pénuchot <jules@penuchot.com>

See merge request oss/rotgen!42
2025-10-17 17:20:47 +02:00

68 lines
2.1 KiB
C++

//==================================================================================================
/*
ROTGEN - Runtime Overlay for Eigen
Copyright : CODE RECKONS
SPDX-License-Identifier: BSL-1.0
*/
//==================================================================================================
#include <rotgen/rotgen.hpp>
#include "unit/common/arithmetic.hpp"
#include "unit/tests.hpp"
TTS_CASE_TPL("Test dynamic matrix inverse",
rotgen::tests::types)<typename T, typename O>(
tts::type<tts::types<T, O>>)
{
using mat_t = rotgen::matrix<T, rotgen::Dynamic, rotgen::Dynamic, O::value>;
auto eps = std::numeric_limits<T>::epsilon();
auto const cases = rotgen::tests::generate_matrix_references();
for (auto const& [r, c, fn] : cases)
{
if (r == c)
{
auto input = mat_t::Random(r, c);
auto inv = rotgen::inverse(input);
auto rec = input * inv;
auto id = mat_t::Identity(rotgen::rows(rec), rotgen::cols(rec));
auto error = rec - id;
TTS_LESS_EQUAL(rotgen::maxCoeff(rotgen::abs(error)) / eps, 64.)
<< "Result:\n"
<< rec << "\n"
<< "Residuals:\n"
<< error << "\n";
}
}
};
TTS_CASE_TPL("Test static matrix inverse",
rotgen::tests::types)<typename T, typename O>(
tts::type<tts::types<T, O>>)
{
using mat_t = rotgen::matrix<T, rotgen::Dynamic, rotgen::Dynamic, O::value>;
auto eps = std::numeric_limits<T>::epsilon();
auto const cases = rotgen::tests::generate_static_matrix_references();
auto process = [&]<typename D>(D const&) {
if constexpr (D::rows == D::cols)
{
auto input = rotgen::matrix<T, D::rows, D::cols, O::value>::Random();
auto inv = rotgen::inverse(input);
auto rec = input * inv;
auto id = mat_t::Identity(rotgen::rows(rec), rotgen::cols(rec));
auto error = rec - id;
TTS_LESS_EQUAL(rotgen::maxCoeff(rotgen::abs(error)) / eps, 64.)
<< "Result:\n"
<< rec << "\n"
<< "Residuals:\n"
<< error << "\n";
}
};
std::apply([&](auto const&... d) { (process(d), ...); }, cases);
};