BD_Integratoren/test/test_Integratoren.cpp

90 lines
4.3 KiB
C++

//
// Created by jholder on 24.10.21.
//
#include <catch2/catch.hpp>
#include <Integratoren2d_forceless.h>
#include <Calculation.h>
#include <Compute.h>
#include <Integratoren2d_force.h>
TEST_CASE("Forceless Integratoren") {
const size_t SEED = Catch::rngSeed();
auto force = [](const Eigen::Vector2d & /*pos*/,
const Eigen::Vector2d & /*torque*/) -> Eigen::Vector2d { return {0.0, 0.0}; };
auto torque = [](const Eigen::Vector2d & /*pos*/,
const Eigen::Vector2d & /*torque*/) -> double { return 0.0; };
SECTION("Euler") {
Calculation euler(Integratoren2d_forceless::Set1_Euler, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED);
{
euler.run(10000);
for (auto &c: euler.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
Calculation euler_force(Integratoren2d_force::Set1_Euler, {
{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED, force, torque);
{
euler_force.run(10000);
for (auto &c: euler_force.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
CHECK(euler.getComputes()[0].getAgg().getMean() == euler_force.getComputes()[0].getAgg().getMean());
CHECK(euler.getComputes()[1].getAgg().getMean() == euler_force.getComputes()[1].getAgg().getMean());
}SECTION("Heun") {
Calculation heun(Integratoren2d_forceless::Set2_Heun, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED);
{
heun.run(10000);
for (auto &c: heun.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
Calculation heun_force(Integratoren2d_force::Set2_Heun, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED, force,
torque);
{
heun_force.run(10000);
for (auto &c: heun_force.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
CHECK(heun.getComputes()[0].getAgg().getMean() == heun_force.getComputes()[0].getAgg().getMean());
CHECK(heun.getComputes()[1].getAgg().getMean() == heun_force.getComputes()[1].getAgg().getMean());
}SECTION("Exact") {
Calculation exact(Integratoren2d_forceless::Set3_Exact, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED);
{
exact.run(10000);
for (auto &c: exact.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
Calculation exact_force(Integratoren2d_force::Set3_Exact, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED, force,
torque);
{
exact_force.run(10000);
for (auto &c: exact_force.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
CHECK(exact.getComputes()[0].getAgg().getMean() == Approx(exact_force.getComputes()[0].getAgg().getMean()).epsilon(1e-10));
CHECK(exact.getComputes()[1].getAgg().getMean() == exact_force.getComputes()[1].getAgg().getMean());
}SECTION("BDAS") {
Calculation bdas(Integratoren2d_forceless::Set4_BDAS, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED);
{
bdas.run(10000);
for (auto &c: bdas.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
Calculation bdas_force(Integratoren2d_force::Set4_BDAS, {{Compute::Type::msd, 1},
{Compute::Type::oaf, 1}}, 0.01, SEED, force,
torque);
{
bdas_force.run(10000);
for (auto &c: bdas_force.getComputes()) { CHECK(c.getDifference() <= 0.005); }
}
CHECK(bdas.getComputes()[0].getAgg().getMean() == bdas_force.getComputes()[0].getAgg().getMean());
CHECK(bdas.getComputes()[1].getAgg().getMean() == bdas_force.getComputes()[1].getAgg().getMean());
}
}