You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
1.1 KiB
34 lines
1.1 KiB
#include <catch2/catch_test_macros.hpp> |
|
#include "../src/physics.h" |
|
#include "../src/simulation.h" |
|
#include "../src/config_loader.h" |
|
#include "../src/test_utilities.h" |
|
#include <cmath> |
|
|
|
TEST_CASE("Energy conservation - Earth circular orbit", "[energy][rk4]") { |
|
const double TIME_STEP = 60.0; |
|
const double DAYS_TO_SIMULATE = 10.0; |
|
const double SECONDS_PER_DAY = 86400.0; |
|
|
|
SimulationState* sim = create_simulation(10, 0, 0, TIME_STEP); |
|
|
|
REQUIRE(load_system_config(sim, "tests/test_energy.toml")); |
|
|
|
double initial_energy = calculate_system_total_energy(sim); |
|
|
|
double total_time = DAYS_TO_SIMULATE * SECONDS_PER_DAY; |
|
while (sim->time < total_time) { |
|
update_simulation(sim); |
|
} |
|
|
|
double final_energy = calculate_system_total_energy(sim); |
|
double energy_drift_percent = fabs((final_energy - initial_energy) / initial_energy) * 100.0; |
|
|
|
INFO("Initial energy: " << initial_energy << " J"); |
|
INFO("Final energy: " << final_energy << " J"); |
|
INFO("Energy drift: " << energy_drift_percent << "%"); |
|
|
|
REQUIRE(energy_drift_percent < 5.0); |
|
|
|
destroy_simulation(sim); |
|
}
|
|
|