cleanup: remove old test files now superseded by tests/

old_tests/test_parabolic_orbit.cpp

@@ -1,137 +0,0 @@
-#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>
-#include <vector>
-
-TEST_CASE("Parabolic orbit - energy and escape trajectory", "[parabolic][energy][escape]") {
-    const double TIME_STEP = 60.0;
-    const double DAYS_TO_SIMULATE = 300.0;
-    const double SECONDS_PER_DAY = 86400.0;
-    const double AU = 1.496e11;
-
-    SimulationState* sim = create_simulation(10, 0, 0, TIME_STEP);
-
-    REQUIRE(load_system_config(sim, "tests/test_parabolic_orbit.toml"));
-
-    const int COMET_INDEX = 1;
-    const int SUN_INDEX = 0;
-
-    Vec3 initial_position = sim->bodies[COMET_INDEX].global_position;
-    double initial_distance = vec3_magnitude(initial_position);
-    double initial_velocity = vec3_magnitude(sim->bodies[COMET_INDEX].global_velocity);
-
-    double initial_kinetic = calculate_kinetic_energy(&sim->bodies[COMET_INDEX]);
-    double initial_potential = calculate_potential_energy_pair(&sim->bodies[COMET_INDEX],
-                                                                &sim->bodies[SUN_INDEX]);
-    double initial_total_energy = initial_kinetic + initial_potential;
-
-    INFO("Initial distance: " << initial_distance / AU << " AU");
-    INFO("Initial velocity: " << vec3_magnitude(sim->bodies[COMET_INDEX].global_velocity) / 1000.0 << " km/s");
-    INFO("Initial kinetic energy: " << initial_kinetic);
-    INFO("Initial potential energy: " << initial_potential);
-    INFO("Initial total energy: " << initial_total_energy);
-
-    REQUIRE(initial_total_energy >= -1e25);
-
-    std::vector<double> distances;
-    std::vector<double> velocities;
-    std::vector<double> energies;
-
-    double max_time = DAYS_TO_SIMULATE * SECONDS_PER_DAY;
-    int step_count = 0;
-    while (sim->time < max_time) {
-        if (step_count % 1000 == 0) {
-            double current_distance = vec3_magnitude(sim->bodies[COMET_INDEX].global_position);
-            double current_velocity = vec3_magnitude(sim->bodies[COMET_INDEX].global_velocity);
-            double current_kinetic = calculate_kinetic_energy(&sim->bodies[COMET_INDEX]);
-            double current_potential = calculate_potential_energy_pair(&sim->bodies[COMET_INDEX],
-                                                                       &sim->bodies[SUN_INDEX]);
-            double current_total = current_kinetic + current_potential;
-
-            distances.push_back(current_distance);
-            velocities.push_back(current_velocity);
-            energies.push_back(current_total);
-        }
-
-        update_simulation(sim);
-        step_count++;
-    }
-
-    double final_distance = vec3_magnitude(sim->bodies[COMET_INDEX].global_position);
-    double final_velocity = vec3_magnitude(sim->bodies[COMET_INDEX].global_velocity);
-
-    double final_kinetic = calculate_kinetic_energy(&sim->bodies[COMET_INDEX]);
-    double final_potential = calculate_potential_energy_pair(&sim->bodies[COMET_INDEX],
-                                                               &sim->bodies[SUN_INDEX]);
-    double final_total_energy = final_kinetic + final_potential;
-
-    INFO("Final distance: " << final_distance / AU << " AU");
-    INFO("Final velocity: " << final_velocity / 1000.0 << " km/s");
-    INFO("Final kinetic energy: " << final_kinetic);
-    INFO("Final potential energy: " << final_potential);
-    INFO("Final total energy: " << final_total_energy);
-
-    REQUIRE(final_distance > initial_distance);
-
-    REQUIRE(final_velocity < initial_velocity);
-
-    double energy_drift = fabs(final_total_energy - initial_total_energy);
-    double avg_kinetic_energy = (initial_kinetic + final_kinetic) / 2.0;
-    double energy_drift_percent = (energy_drift / avg_kinetic_energy) * 100.0;
-
-    INFO("Energy drift: " << energy_drift << " J");
-    INFO("Energy drift percent: " << energy_drift_percent << "%");
-
-    REQUIRE(energy_drift_percent < 1.0);
-
-    int velocity_decreases = 0;
-    for (size_t i = 1; i < velocities.size(); i++) {
-        if (velocities[i] < velocities[i-1]) {
-            velocity_decreases++;
-        }
-    }
-
-    INFO("Velocity decreases: " << velocity_decreases << " / " << (velocities.size() - 1));
-
-    REQUIRE(velocity_decreases > static_cast<int>(velocities.size()) / 2);
-
-    destroy_simulation(sim);
-}
-
-TEST_CASE("Parabolic orbit initial conditions", "[parabolic][initial]") {
-    const double TIME_STEP = 60.0;
-
-    SimulationState* sim = create_simulation(10, 0, 0, TIME_STEP);
-
-    REQUIRE(load_system_config(sim, "tests/test_parabolic_orbit.toml"));
-
-    const int COMET_INDEX = 1;
-    const int SUN_INDEX = 0;
-    CelestialBody* comet = &sim->bodies[COMET_INDEX];
-    CelestialBody* sun = &sim->bodies[SUN_INDEX];
-
-    double distance = vec3_magnitude(vec3_sub(comet->global_position, sun->global_position));
-    double velocity = vec3_magnitude(comet->global_velocity);
-
-    double escape_velocity = sqrt(2.0 * G * sun->mass / distance);
-    double circular_velocity = sqrt(G * sun->mass / distance);
-
-    INFO("Distance: " << distance / 1.496e11 << " AU");
-    INFO("Actual velocity: " << velocity / 1000.0 << " km/s");
-    INFO("Escape velocity: " << escape_velocity / 1000.0 << " km/s");
-    INFO("Circular velocity: " << circular_velocity / 1000.0 << " km/s");
-
-    double velocity_error = fabs(velocity - escape_velocity) / escape_velocity;
-    INFO("Velocity error from escape velocity: " << velocity_error * 100.0 << "%");
-
-    REQUIRE(velocity_error < 0.001);
-
-    INFO("Eccentricity: " << comet->orbit.eccentricity);
-
-    REQUIRE(fabs(comet->orbit.eccentricity - 1.0) < 0.0001);
-
-    destroy_simulation(sim);
-}

old_tests/test_parabolic_orbit.toml

@@ -1,27 +0,0 @@
-# Test Configuration: Sun + Parabolic Comet
-# Comet with parabolic orbit (eccentricity = 1.0)
-# Escape trajectory - total energy = 0
-
-[[bodies]]
-name = "Sun"
-mass = 1.989e30
-radius = 6.96e8
-parent_index = -1
-color = {r = 1.0,g = 1.0,b = 0.0 }
-orbit = {
-    semi_major_axis = 0.0,
-    eccentricity = 0.0,
-    true_anomaly = 0.0
-}
-
-[[bodies]]
-name = "ParabolicComet"
-mass = 1.0e14
-radius = 5.0e3
-parent_index = 0
-color = {r = 0.7,g = 0.8,b = 0.9 }
-orbit = {
-    semi_latus_rectum = 2.992e11,
-    eccentricity = 1.0,
-    true_anomaly = 0.0
-}