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2026-05-28 10:29:58 +07:00

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/*
* Software License Agreement (BSD License)
*
* Copyright (c) 2018, Locus Robotics
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the copyright holder nor the names of its
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* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#include <gtest/gtest.h>
#include <nav_grid/vector_nav_grid.h>
#include <nav_grid/coordinate_conversion.h>
#include <algorithm>
TEST(VectorNavGrid, info_equality)
{
nav_grid::NavGridInfo info0;
nav_grid::NavGridInfo info1;
nav_grid::NavGridInfo width_info;
width_info.width = 3;
nav_grid::NavGridInfo height_info;
height_info.height = 3;
nav_grid::NavGridInfo res_info;
res_info.resolution = 3.0;
nav_grid::NavGridInfo frame_info;
frame_info.frame_id = "foobar";
nav_grid::NavGridInfo originx_info;
originx_info.origin_x = 3.0;
nav_grid::NavGridInfo originy_info;
originy_info.origin_y = 3.0;
EXPECT_EQ(info0, info0);
EXPECT_EQ(info0, info1);
EXPECT_NE(info0, width_info);
EXPECT_NE(info0, height_info);
EXPECT_NE(info0, res_info);
EXPECT_NE(info0, frame_info);
EXPECT_NE(info0, originx_info);
EXPECT_NE(info0, originy_info);
}
TEST(VectorNavGrid, basic_test)
{
nav_grid::VectorNavGrid<int> grid(-3);
nav_grid::NavGridInfo info;
info.width = 2;
info.height = 3;
grid.setInfo(info);
EXPECT_EQ(grid(0, 0), -3);
grid.setValue(1, 1, 10);
EXPECT_EQ(grid(0, 0), -3);
EXPECT_EQ(grid(1, 1), 10);
}
TEST(VectorNavGrid, basic_index_test)
{
nav_grid::VectorNavGrid<int> grid(-3);
nav_grid::NavGridInfo info;
info.width = 2;
info.height = 3;
grid.setInfo(info);
nav_grid::Index index0(0, 0), index1(1, 1);
EXPECT_EQ(grid(index0), -3);
grid.setValue(index1, 10);
EXPECT_EQ(grid(index0), -3);
EXPECT_EQ(grid(index1), 10);
EXPECT_EQ(grid(0, 0), -3);
EXPECT_EQ(grid(1, 1), 10);
}
TEST(VectorNavGrid, easy_coordinates_test)
{
nav_grid::NavGridInfo info;
info.width = 2;
info.height = 3;
double wx, wy;
gridToWorld(info, 0, 0, wx, wy);
EXPECT_DOUBLE_EQ(wx, 0.5);
EXPECT_DOUBLE_EQ(wy, 0.5);
gridToWorld(info, 1, 2, wx, wy);
EXPECT_DOUBLE_EQ(wx, 1.5);
EXPECT_DOUBLE_EQ(wy, 2.5);
unsigned int umx, umy;
int mx, my;
double dmx, dmy;
ASSERT_TRUE(worldToGridBounded(info, wx, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_EQ(umy, 2);
worldToGrid(info, wx, wy, mx, my);
EXPECT_EQ(mx, 1);
EXPECT_EQ(my, 2);
worldToGrid(info, wx, wy, dmx, dmy);
EXPECT_DOUBLE_EQ(dmx, wx);
EXPECT_DOUBLE_EQ(dmy, wy);
// Invalid Coordinate
wx = 2.5;
EXPECT_FALSE(worldToGridBounded(info, wx, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_EQ(umy, 2);
worldToGrid(info, wx, wy, mx, my);
EXPECT_EQ(mx, 2);
EXPECT_EQ(my, 2);
// Border Cases
EXPECT_TRUE(worldToGridBounded(info, 0.0, wy, umx, umy));
EXPECT_EQ(umx, 0);
EXPECT_TRUE(worldToGridBounded(info, 0.25, wy, umx, umy));
EXPECT_EQ(umx, 0);
EXPECT_TRUE(worldToGridBounded(info, 0.75, wy, umx, umy));
EXPECT_EQ(umx, 0);
EXPECT_TRUE(worldToGridBounded(info, 0.9999, wy, umx, umy));
EXPECT_EQ(umx, 0);
EXPECT_TRUE(worldToGridBounded(info, 1.0, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_TRUE(worldToGridBounded(info, 1.25, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_TRUE(worldToGridBounded(info, 1.75, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_TRUE(worldToGridBounded(info, 1.9999, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_FALSE(worldToGridBounded(info, 2.0, wy, umx, umy));
EXPECT_EQ(umx, 1);
}
TEST(VectorNavGrid, hard_coordinates_test)
{
nav_grid::NavGridInfo info;
info.width = 2;
info.height = 3;
info.resolution = 0.1;
info.origin_x = -0.2;
info.origin_y = 0.2;
double wx, wy;
gridToWorld(info, 0, 0, wx, wy);
EXPECT_DOUBLE_EQ(wx, -0.15);
EXPECT_DOUBLE_EQ(wy, 0.25);
gridToWorld(info, 1, 2, wx, wy);
EXPECT_DOUBLE_EQ(wx, -0.05);
EXPECT_DOUBLE_EQ(wy, 0.45);
unsigned int umx, umy;
int mx, my;
double dmx, dmy;
EXPECT_TRUE(worldToGridBounded(info, wx, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_EQ(umy, 2);
worldToGrid(info, wx, wy, mx, my);
EXPECT_EQ(mx, 1);
EXPECT_EQ(my, 2);
worldToGrid(info, wx, wy, dmx, dmy);
EXPECT_DOUBLE_EQ(dmx, 1.5);
EXPECT_DOUBLE_EQ(dmy, 2.5);
// Invalid Coordinate
wx = 2.5;
EXPECT_FALSE(worldToGridBounded(info, wx, wy, umx, umy));
EXPECT_EQ(umx, 1);
EXPECT_EQ(umy, 2);
worldToGrid(info, wx, wy, mx, my);
EXPECT_EQ(mx, 27);
EXPECT_EQ(my, 2);
}
TEST(VectorNavGrid, speed_test)
{
nav_grid::NavGridInfo info;
const int N = 1000;
const int EXTRA = 300;
info.width = N;
info.height = N;
double wx, wy;
unsigned int umx, umy;
int mx, my;
double dmx, dmy;
for (int x = -EXTRA; x < N + EXTRA; x++)
{
for (int y = -EXTRA; y < N + EXTRA; y++)
{
gridToWorld(info, x, y, wx, wy);
if (x < 0 || y < 0 || x >= N || y >= N)
{
EXPECT_FALSE(isWithinGrid(info, wx, wy));
EXPECT_FALSE(worldToGridBounded(info, wx, wy, umx, umy));
EXPECT_EQ(umx, std::min(std::max(0, x), N - 1));
EXPECT_EQ(umy, std::min(std::max(0, y), N - 1));
}
else
{
EXPECT_TRUE(isWithinGrid(info, wx, wy));
EXPECT_TRUE(worldToGridBounded(info, wx, wy, umx, umy));
EXPECT_EQ(umx, x);
EXPECT_EQ(umy, y);
}
worldToGrid(info, wx, wy, mx, my);
EXPECT_EQ(mx, x);
EXPECT_EQ(my, y);
worldToGrid(info, wx, wy, dmx, dmy);
EXPECT_DOUBLE_EQ(dmx, x + 0.5);
EXPECT_DOUBLE_EQ(dmy, y + 0.5);
}
}
}
int testGridValue(double x, double y)
{
return static_cast<int>(100 * floor(x) + floor(y));
}
/**
* Initialize Grid Values with values based on the grid/world coordinates
* which are initially the same
*
* x -->
* 000 100 200 300 400 500 600 700 800 900 y
* 001 101 201 301 401 501 601 701 801 901 |
* 002 102 202 302 402 502 602 702 802 902 |
* 003 103 203 303 403 503 603 703 803 903 V
* 004 104 204 304 404 504 604 704 804 904
*/
void initializeTestGrid(nav_grid::VectorNavGrid<int>& grid)
{
grid.setDefaultValue(-10);
nav_grid::NavGridInfo info;
info.width = 10;
info.height = 5;
grid.setInfo(info);
double mx, my;
for (unsigned int j = 0; j < info.height; j++)
{
for (unsigned int i = 0; i < info.width; i++)
{
gridToWorld(info, i, j, mx, my);
grid.setValue(i, j, testGridValue(mx, my));
}
}
}
/**
* Check to make sure all the grid values are now the same based on their grid coordinates
*/
void checkSetGridValues(const nav_grid::VectorNavGrid<int>& grid,
unsigned int x0, unsigned int x1, unsigned int y0, unsigned int y1)
{
for (unsigned int x = 0; x < grid.getWidth(); x++)
{
for (unsigned int y = 0; y < grid.getHeight(); y++)
{
if (x >= x0 && x < x1 && y >= y0 && y < y1)
{
EXPECT_EQ(grid(x, y), testGridValue(x, y)); // testGridValue based on Grid Coordinates
}
else
{
EXPECT_EQ(grid(x, y), -10);
}
}
}
}
/**
* Check to make sure all the grid values are now the same based on their world coordinates
*/
void checkUpdateGridValues(const nav_grid::VectorNavGrid<int>& grid,
unsigned int x0, unsigned int x1, unsigned int y0, unsigned int y1)
{
double mx, my;
for (unsigned int x = 0; x < grid.getWidth(); x++)
{
for (unsigned int y = 0; y < grid.getHeight(); y++)
{
if (x >= x0 && x < x1 && y >= y0 && y < y1)
{
gridToWorld(grid.getInfo(), x, y, mx, my);
EXPECT_EQ(grid(x, y), testGridValue(mx, my)); // testGridValue based on World Coordinates
}
else
{
EXPECT_EQ(grid(x, y), -10);
}
}
}
}
void debugGridValues(const nav_grid::VectorNavGrid<int>& grid)
{
for (unsigned int j = 0; j < grid.getHeight(); j++)
{
for (unsigned int i = 0; i < grid.getWidth(); i++)
{
printf("%d ", grid(i, j));
}
printf("\n");
}
printf("\n");
}
TEST(VectorNavGrid, resizing_grid_with_set)
{
nav_grid::VectorNavGrid<int> grid;
initializeTestGrid(grid);
checkSetGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo decreased_width_info = grid.getInfo();
decreased_width_info.width = 5;
grid.setInfo(decreased_width_info);
checkSetGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo increased_width_info = grid.getInfo();
increased_width_info.width = 9;
grid.setInfo(increased_width_info);
checkSetGridValues(grid, 0, 5, 0, grid.getHeight());
initializeTestGrid(grid);
checkSetGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo increased_height_info = grid.getInfo();
increased_height_info.height = 9;
grid.setInfo(increased_height_info);
checkSetGridValues(grid, 0, grid.getWidth(), 0, 5);
nav_grid::NavGridInfo decreased_height_info = grid.getInfo();
decreased_height_info.height = 4;
grid.setInfo(decreased_height_info);
checkSetGridValues(grid, 0, grid.getWidth(), 0, 4);
}
TEST(VectorNavGrid, resizing_grid_with_update)
{
nav_grid::VectorNavGrid<int> grid;
initializeTestGrid(grid);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo decreased_width_info = grid.getInfo();
decreased_width_info.width = 5;
grid.updateInfo(decreased_width_info);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo increased_width_info = grid.getInfo();
increased_width_info.width = 9;
grid.updateInfo(increased_width_info);
checkUpdateGridValues(grid, 0, 5, 0, grid.getHeight());
initializeTestGrid(grid);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo increased_height_info = grid.getInfo();
increased_height_info.height = 9;
grid.updateInfo(increased_height_info);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, 5);
nav_grid::NavGridInfo decreased_height_info = grid.getInfo();
decreased_height_info.height = 4;
grid.updateInfo(decreased_height_info);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, 4);
}
TEST(VectorNavGrid, change_origin)
{
nav_grid::VectorNavGrid<int> grid;
initializeTestGrid(grid);
nav_grid::NavGridInfo bump_right_info = grid.getInfo();
bump_right_info.origin_x = 3;
grid.updateInfo(bump_right_info);
checkUpdateGridValues(grid, 0, 7, 0, grid.getHeight());
nav_grid::NavGridInfo bump_up_info = grid.getInfo();
bump_up_info.origin_y = 2;
grid.updateInfo(bump_up_info);
checkUpdateGridValues(grid, 0, 7, 0, 3);
nav_grid::NavGridInfo bump_left_info = grid.getInfo();
bump_left_info.origin_x = -1;
grid.updateInfo(bump_left_info);
checkUpdateGridValues(grid, 4, grid.getWidth(), 0, 3);
nav_grid::NavGridInfo bump_down_info = grid.getInfo();
bump_down_info.origin_y = 0;
grid.updateInfo(bump_down_info);
checkUpdateGridValues(grid, 4, grid.getWidth(), 2, grid.getHeight());
initializeTestGrid(grid);
nav_grid::NavGridInfo bump_far_right_info = grid.getInfo();
bump_far_right_info.origin_x = 30;
grid.updateInfo(bump_far_right_info);
checkUpdateGridValues(grid, 0, 0, 0, 0);
}
TEST(VectorNavGrid, combined_changes)
{
// This is not a complete set of possible combined changes, just enough to satisfy my curiousity
nav_grid::VectorNavGrid<int> grid;
initializeTestGrid(grid);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
nav_grid::NavGridInfo info1 = grid.getInfo();
info1.width = 15;
info1.origin_x = -5.0;
grid.updateInfo(info1);
checkUpdateGridValues(grid, 5, grid.getWidth(), 0, grid.getHeight());
initializeTestGrid(grid);
nav_grid::NavGridInfo info2 = grid.getInfo();
info2.width = 17;
info2.origin_x = -5.0;
grid.updateInfo(info2);
checkUpdateGridValues(grid, 5, grid.getWidth() - 2, 0, grid.getHeight());
initializeTestGrid(grid);
nav_grid::NavGridInfo info3 = grid.getInfo();
info3.width = 2;
info3.origin_x = 2.0;
grid.updateInfo(info3);
checkUpdateGridValues(grid, 0, grid.getWidth(), 0, grid.getHeight());
initializeTestGrid(grid);
nav_grid::NavGridInfo info4 = grid.getInfo();
info4.width = 20;
info4.height = 20;
info4.origin_x = -2.0;
info4.origin_y = -5.0;
grid.updateInfo(info4);
checkUpdateGridValues(grid, 2, 12, 5, 10);
}
TEST(Index, comparison_tests)
{
unsigned int N = 5;
for (unsigned int x0 = 0; x0 < N; ++x0)
{
for (unsigned int y0 = 0; y0 < N; ++y0)
{
nav_grid::Index index0(x0, y0);
for (unsigned int x1 = 0; x1 < N; ++x1)
{
for (unsigned int y1 = 0; y1 < N; ++y1)
{
nav_grid::Index index1(x1, y1);
// Check equality and the test for equality that sets use
// See https://stackoverflow.com/a/1114862
if (x0 == x1 && y0 == y1)
{
EXPECT_EQ(index0, index1);
EXPECT_TRUE(!(index0 < index1) && !(index1 < index0));
EXPECT_GE(index0, index1);
EXPECT_LE(index0, index1);
EXPECT_GE(index1, index0);
EXPECT_LE(index1, index0);
}
else
{
EXPECT_NE(index0, index1);
EXPECT_FALSE(!(index0 < index1) && !(index1 < index0));
if (x0 < x1 || (x0 == x1 && y0 < y1))
{
EXPECT_LT(index0, index1);
EXPECT_GT(index1, index0);
EXPECT_LE(index0, index1);
EXPECT_GE(index1, index0);
}
else
{
EXPECT_GT(index0, index1);
EXPECT_LT(index1, index0);
EXPECT_GE(index0, index1);
EXPECT_LE(index1, index0);
}
}
}
}
}
}
}
int main(int argc, char **argv)
{
testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}