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PX4-Autopilot/src/lib/collision_prevention/ObstacleMathTest.cpp
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#include <gtest/gtest.h>
#include <matrix/math.hpp>
#include "ObstacleMath.hpp"
using namespace matrix;
TEST(ObstacleMathTest, ProjectDistanceOnHorizontalPlane)
{
// standard vehicle orientation inputs
Quatf vehicle_pitch_up_45(Eulerf(0.0f, M_PI_4_F, 0.0f));
Quatf vehicle_roll_right_45(Eulerf(M_PI_4_F, 0.0f, 0.0f));
// GIVEN: a distance, sensor orientation, and quaternion representing the vehicle's orientation
float distance = 1.0f;
float sensor_orientation = 0; // radians (forward facing)
// WHEN: we project the distance onto the horizontal plane
ObstacleMath::project_distance_on_horizontal_plane(distance, sensor_orientation, vehicle_pitch_up_45);
// THEN: the distance should be scaled correctly
float expected_scale = sqrtf(2) / 2;
float expected_distance = 1.0f * expected_scale;
EXPECT_NEAR(distance, expected_distance, 1e-5);
// GIVEN: a distance, sensor orientation, and quaternion representing the vehicle's orientation
distance = 1.0f;
ObstacleMath::project_distance_on_horizontal_plane(distance, sensor_orientation, vehicle_roll_right_45);
// THEN: the distance should be scaled correctly
expected_scale = 1.f;
expected_distance = 1.0f * expected_scale;
EXPECT_NEAR(distance, expected_distance, 1e-5);
// GIVEN: a distance, sensor orientation, and quaternion representing the vehicle's orientation
distance = 1.0f;
sensor_orientation = M_PI_2_F; // radians (right facing)
ObstacleMath::project_distance_on_horizontal_plane(distance, sensor_orientation, vehicle_roll_right_45);
// THEN: the distance should be scaled correctly
expected_scale = sqrtf(2) / 2;
expected_distance = 1.0f * expected_scale;
EXPECT_NEAR(distance, expected_distance, 1e-5);
// GIVEN: a distance, sensor orientation, and quaternion representing the vehicle's orientation
distance = 1.0f;
ObstacleMath::project_distance_on_horizontal_plane(distance, sensor_orientation, vehicle_pitch_up_45);
// THEN: the distance should be scaled correctly
expected_scale = 1.f;
expected_distance = 1.0f * expected_scale;
EXPECT_NEAR(distance, expected_distance, 1e-5);
}