v/examples/pendulum-simulation/modules/sim/params_test.v

module sim

import math

const (
	params_test_mock_params = SimParams{
		rope_length: 0.25
		bearing_mass: 0.03
		magnet_spacing: 0.05
		magnet_height: 0.03
		magnet_strength: 10
		gravity: 4.9
	}
	params_test_mock_state = SimState{
		position: vector(
			x: -0.016957230930171364
			y: -0.02937078552673521
			z: 0.002311063475327252
		)
		velocity: vector(
			x: -7.251158929833104
			y: -12.559375680227724
			z: -105.91539687686381
		)
		accel: vector(
			x: -8.337034766251843e-11
			y: -2.842170943040401e-10
			z: 1.2126596023639044e-10
		)
	}
	params_test_mock_tetha = 2.0 * math.pi / 3.0
)

pub fn test_get_rope_vector() {
	result := sim.params_test_mock_params.get_rope_vector(sim.params_test_mock_state)
	expected := vector(
		x: -0.016957230930171364
		y: -0.02937078552673521
		z: -0.24768893652467275
	)
	assert result == expected
}

pub fn test_get_forces_sum() {
	result := sim.params_test_mock_params.get_forces_sum(sim.params_test_mock_state)
	expected := vector(
		x: 3.637978807091713e-12
		y: 5.229594535194337e-12
		z: 9.094947017729282e-13
	)
	assert result == expected
}

pub fn test_get_grav_force() {
	result := sim.params_test_mock_params.get_grav_force(sim.params_test_mock_state)
	expected := vector(
		z: -0.147
	)
	assert result == expected
}

pub fn test_get_magnet_position() {
	result := sim.params_test_mock_params.get_magnet_position(sim.params_test_mock_tetha)
	expected := vector(
		x: -0.024999999999999988
		y: 0.043301270189221946
		z: -0.03
	)
	assert result == expected
}

pub fn test_get_magnet_force() {
	result := sim.params_test_mock_params.get_magnet_force(sim.params_test_mock_tetha,
		sim.params_test_mock_state)
	expected := vector(
		x: -157.45722976925555
		y: 1422.736432604726
		z: -632.5695169850264
	)
	assert result == expected
}

pub fn test_get_magnet_dist() {
	result := sim.params_test_mock_params.get_magnet_dist(sim.params_test_mock_tetha,
		sim.params_test_mock_state)
	expected := 0.07993696666249227
	assert result == expected
}

pub fn test_get_magnet1_force() {
	result := sim.params_test_mock_params.get_magnet1_force(sim.params_test_mock_state)
	expected := vector(
		x: 1310.8545084099674
		y: 575.0062553126633
		z: -632.5695169850262
	)
	assert result == expected
}

pub fn test_get_magnet2_force() {
	result := sim.params_test_mock_params.get_magnet2_force(sim.params_test_mock_state)
	expected := vector(
		x: -157.45722976925555
		y: 1422.736432604726
		z: -632.5695169850264
	)
	assert result == expected
}

pub fn test_get_magnet3_force() {
	result := sim.params_test_mock_params.get_magnet3_force(sim.params_test_mock_state)
	expected := vector(
		x: -1710.46541088048
		y: -2962.612996234165
		z: -6871.632889552589
	)
	assert result == expected
}

pub fn test_get_tension_force() {
	result := sim.params_test_mock_params.get_tension_force(sim.params_test_mock_state,
		vector(x: 0.0, y: 0.0, z: 0.0))
	expected := vector(x: 0.0, y: 0.0, z: 0.0)
	assert result == expected
}