Files
Ymir/core/tests/world/TestWaveSpectrum.cpp
vinihcrosaandClaude Sonnet 4.6 af9a058fbf fix: resolve gcc-12 build errors in Docker Linux target
- NavalDomain.cpp: materialize BodyState temporaries before taking const& to
  member (dangling-pointer= false positive on clang, real UB caught by gcc-12)
- TestBerthManeuverSystem.cpp: add GCC diagnostic pragma alongside existing
  clang pragma to suppress deprecated-declarations on TugParametricForces
- TestWaveSpectrum.cpp: add missing #include <cmath> for std::sqrt
  (transitively included on macOS/clang, required explicitly on gcc-12)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-28 00:29:32 -03:00

81 lines
2.4 KiB
C++

#include <catch2/catch_test_macros.hpp>
#include <catch2/catch_approx.hpp>
#include <cmath>
#include <ymir/world/wave/WaveSpectrum.h>
using Catch::Approx;
using namespace ymir::naval;
TEST_CASE("WaveSpectrum JONSWAP constructs without crash")
{
WaveSpectrum::Config cfg{};
cfg.spectrumType = WaveSpectrumType::JONSWAP;
cfg.significantWaveHeight = 2.0;
cfg.peakPeriod = 8.0;
cfg.gamma = 3.3;
cfg.seed = 42;
cfg.n_frequencies = 20;
cfg.n_directions = 8;
cfg.spreadingS = 2.0;
cfg.mainDirection_deg = 0.0;
WaveSpectrum spectrum(cfg);
REQUIRE(spectrum.numComponents() > 0);
}
TEST_CASE("WaveSpectrum PIERSON constructs")
{
WaveSpectrum::Config cfg{};
cfg.spectrumType = WaveSpectrumType::PIERSON;
cfg.significantWaveHeight = 1.5;
cfg.peakPeriod = 6.0;
cfg.seed = 123;
cfg.n_frequencies = 10;
cfg.n_directions = 4;
cfg.spreadingS = 1.0;
cfg.mainDirection_deg = 45.0;
WaveSpectrum spectrum(cfg);
REQUIRE(spectrum.numComponents() > 0);
}
TEST_CASE("WaveSpectrum REGULAR has single component")
{
WaveSpectrum::Config cfg{};
cfg.spectrumType = WaveSpectrumType::REGULAR;
cfg.significantWaveHeight = 1.0;
cfg.peakPeriod = 8.0;
cfg.mainDirection_deg = 0.0;
cfg.seed = 0;
cfg.n_frequencies = 1;
cfg.n_directions = 1;
WaveSpectrum spectrum(cfg);
REQUIRE(spectrum.numComponents() == 1);
}
TEST_CASE("WaveSpectrum total variance matches Hs estimate")
{
WaveSpectrum::Config cfg{};
cfg.spectrumType = WaveSpectrumType::JONSWAP;
cfg.significantWaveHeight = 3.0;
cfg.peakPeriod = 10.0;
cfg.gamma = 3.3;
cfg.seed = 7;
cfg.n_frequencies = 64;
cfg.n_directions = 18;
cfg.spreadingS = 2.0;
cfg.mainDirection_deg = 0.0;
WaveSpectrum spectrum(cfg);
// Total wave variance = sum of (a_i^2 / 2)
double m0 = 0.0;
for (const auto& comp : spectrum.components())
m0 += comp.amplitude * comp.amplitude / 2.0;
double Hs_computed = 4.0 * std::sqrt(m0);
// Should be within 20% of target Hs
REQUIRE(Hs_computed == Approx(cfg.significantWaveHeight).epsilon(0.20));
}