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godot/tests/core/math/test_aabb.h

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Add a test suite for AABB
2020-11-20 00:05:23 +00:00
/**************************************************************************/
/* test_aabb.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef TEST_AABB_H
#define TEST_AABB_H
#include "core/math/aabb.h"
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#include "tests/test_macros.h"
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namespace TestAABB {
TEST_CASE("[AABB] Constructor methods") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
const AABB aabb_copy = AABB(aabb);
CHECK_MESSAGE(
aabb == aabb_copy,
"AABBs created with the same dimensions but by different methods should be equal.");
}
TEST_CASE("[AABB] String conversion") {
CHECK_MESSAGE(
Reformat structure string operators The order of numbers is not changed except for Transform2D. All logic is done inside of their structures (and not in Variant). For the number of decimals printed, they now use String::num_real which works best with real_t, except for Color which is fixed at 4 decimals (this is a reliable number of float digits when converting from 16-bpc so it seems like a good choice)
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String(AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6))) == "[P: (-1.5, 2, -2.5), S: (4, 5, 6)]",
"The string representation should match the expected value.");
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}
TEST_CASE("[AABB] Basic getters") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
aabb.get_position().is_equal_approx(Vector3(-1.5, 2, -2.5)),
"get_position() should return the expected value.");
CHECK_MESSAGE(
aabb.get_size().is_equal_approx(Vector3(4, 5, 6)),
"get_size() should return the expected value.");
CHECK_MESSAGE(
aabb.get_end().is_equal_approx(Vector3(2.5, 7, 3.5)),
"get_end() should return the expected value.");
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CHECK_MESSAGE(
aabb.get_center().is_equal_approx(Vector3(0.5, 4.5, 0.5)),
"get_center() should return the expected value.");
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}
TEST_CASE("[AABB] Basic setters") {
AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
aabb.set_end(Vector3(100, 0, 100));
CHECK_MESSAGE(
aabb.is_equal_approx(AABB(Vector3(-1.5, 2, -2.5), Vector3(101.5, -2, 102.5))),
"set_end() should result in the expected AABB.");
aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
aabb.set_position(Vector3(-1000, -2000, -3000));
CHECK_MESSAGE(
aabb.is_equal_approx(AABB(Vector3(-1000, -2000, -3000), Vector3(4, 5, 6))),
"set_position() should result in the expected AABB.");
aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
aabb.set_size(Vector3(0, 0, -50));
CHECK_MESSAGE(
aabb.is_equal_approx(AABB(Vector3(-1.5, 2, -2.5), Vector3(0, 0, -50))),
"set_size() should result in the expected AABB.");
}
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TEST_CASE("[AABB] Volume getters") {
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AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
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aabb.get_volume() == doctest::Approx(120),
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"get_volume() should return the expected value with positive size.");
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CHECK_MESSAGE(
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aabb.has_volume(),
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"Non-empty volumetric AABB should have a volume.");
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aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(-4, 5, 6));
CHECK_MESSAGE(
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aabb.get_volume() == doctest::Approx(-120),
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"get_volume() should return the expected value with negative size (1 component).");
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aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(-4, -5, 6));
CHECK_MESSAGE(
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aabb.get_volume() == doctest::Approx(120),
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"get_volume() should return the expected value with negative size (2 components).");
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aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(-4, -5, -6));
CHECK_MESSAGE(
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aabb.get_volume() == doctest::Approx(-120),
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"get_volume() should return the expected value with negative size (3 components).");
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aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 0, 6));
CHECK_MESSAGE(
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!aabb.has_volume(),
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"Non-empty flat AABB should not have a volume.");
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CHECK_MESSAGE(
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!AABB().has_volume(),
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"Empty AABB should not have a volume.");
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}
TEST_CASE("[AABB] Surface getters") {
AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
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aabb.has_surface(),
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"Non-empty volumetric AABB should have an surface.");
aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 0, 6));
CHECK_MESSAGE(
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aabb.has_surface(),
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"Non-empty flat AABB should have a surface.");
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aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 0, 0));
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CHECK_MESSAGE(
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aabb.has_surface(),
"Non-empty linear AABB should have a surface.");
CHECK_MESSAGE(
!AABB().has_surface(),
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"Empty AABB should not have an surface.");
}
TEST_CASE("[AABB] Intersection") {
const AABB aabb_big = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
AABB aabb_small = AABB(Vector3(-1.5, 2, -2.5), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.intersects(aabb_small),
"intersects() with fully contained AABB (touching the edge) should return the expected result.");
aabb_small = AABB(Vector3(0.5, 1.5, -2), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.intersects(aabb_small),
"intersects() with partially contained AABB (overflowing on Y axis) should return the expected result.");
aabb_small = AABB(Vector3(10, -10, -10), Vector3(1, 1, 1));
CHECK_MESSAGE(
!aabb_big.intersects(aabb_small),
"intersects() with non-contained AABB should return the expected result.");
aabb_small = AABB(Vector3(-1.5, 2, -2.5), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.intersection(aabb_small).is_equal_approx(aabb_small),
"intersection() with fully contained AABB (touching the edge) should return the expected result.");
aabb_small = AABB(Vector3(0.5, 1.5, -2), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.intersection(aabb_small).is_equal_approx(AABB(Vector3(0.5, 2, -2), Vector3(1, 0.5, 1))),
"intersection() with partially contained AABB (overflowing on Y axis) should return the expected result.");
aabb_small = AABB(Vector3(10, -10, -10), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.intersection(aabb_small).is_equal_approx(AABB()),
"intersection() with non-contained AABB should return the expected result.");
CHECK_MESSAGE(
aabb_big.intersects_plane(Plane(Vector3(0, 1, 0), 4)),
"intersects_plane() should return the expected result.");
CHECK_MESSAGE(
aabb_big.intersects_plane(Plane(Vector3(0, -1, 0), -4)),
"intersects_plane() should return the expected result.");
CHECK_MESSAGE(
!aabb_big.intersects_plane(Plane(Vector3(0, 1, 0), 200)),
"intersects_plane() should return the expected result.");
CHECK_MESSAGE(
aabb_big.intersects_segment(Vector3(1, 3, 0), Vector3(0, 3, 0)),
"intersects_segment() should return the expected result.");
CHECK_MESSAGE(
aabb_big.intersects_segment(Vector3(0, 3, 0), Vector3(0, -300, 0)),
"intersects_segment() should return the expected result.");
CHECK_MESSAGE(
aabb_big.intersects_segment(Vector3(-50, 3, -50), Vector3(50, 3, 50)),
"intersects_segment() should return the expected result.");
CHECK_MESSAGE(
!aabb_big.intersects_segment(Vector3(-50, 25, -50), Vector3(50, 25, 50)),
"intersects_segment() should return the expected result.");
CHECK_MESSAGE(
aabb_big.intersects_segment(Vector3(0, 3, 0), Vector3(0, 3, 0)),
"intersects_segment() should return the expected result with segment of length 0.");
CHECK_MESSAGE(
!aabb_big.intersects_segment(Vector3(0, 300, 0), Vector3(0, 300, 0)),
"intersects_segment() should return the expected result with segment of length 0.");
Fix AABB Ray intersection - return inside * Separates find_intersects from test_intersects for rays, and wraps the former. * Changes parameter name to "r_intersection_point". * Fixes broken old version which returned per axis t. * Returns whether the ray origin is within the AABB. * Returns intersection point when origin outside. * Returns "backtracking" intersection point when inside. * Returns sensible normal when inside. * Returns valid results on borders. * Returns robust results dealing with floating point error. Co-authored-by: Claire Blackshaw <evilkimau@gmail.com>
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CHECK_MESSAGE( // Simple ray intersection test.
aabb_big.intersects_ray(Vector3(-100, 3, 0), Vector3(1, 0, 0)),
"intersects_ray() should return true when ray points directly to AABB from outside.");
CHECK_MESSAGE( // Ray parallel to an edge.
!aabb_big.intersects_ray(Vector3(10, 10, 0), Vector3(0, 1, 0)),
"intersects_ray() should return false for ray parallel and outside of AABB.");
CHECK_MESSAGE( // Ray origin inside aabb.
aabb_big.intersects_ray(Vector3(1, 1, 1), Vector3(0, 1, 0)),
"intersects_ray() should return true for rays originating inside the AABB.");
CHECK_MESSAGE( // Ray pointing away from aabb.
!aabb_big.intersects_ray(Vector3(-10, 0, 0), Vector3(-1, 0, 0)),
"intersects_ray() should return false when ray points away from AABB.");
CHECK_MESSAGE( // Ray along a diagonal of aabb.
aabb_big.intersects_ray(Vector3(0, 0, 0), Vector3(1, 1, 1)),
"intersects_ray() should return true for rays along the AABB diagonal.");
CHECK_MESSAGE( // Ray originating at aabb edge.
aabb_big.intersects_ray(aabb_big.position, Vector3(-1, 0, 0)),
"intersects_ray() should return true for rays starting on AABB's edge.");
CHECK_MESSAGE( // Ray with zero direction inside.
aabb_big.intersects_ray(Vector3(-1, 3, -2), Vector3(0, 0, 0)),
"intersects_ray() should return true because its inside.");
CHECK_MESSAGE( // Ray with zero direction outside.
!aabb_big.intersects_ray(Vector3(-1000, 3, -2), Vector3(0, 0, 0)),
"intersects_ray() should return false for being outside.");
// Finding ray intersections.
const AABB aabb_simple = AABB(Vector3(), Vector3(1, 1, 1));
bool inside = false;
Vector3 intersection_point;
Vector3 intersection_normal;
// Borders.
aabb_simple.find_intersects_ray(Vector3(0.5, 0, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal);
CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders.");
CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect.");
CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() border intersection normal incorrect.");
aabb_simple.find_intersects_ray(Vector3(0.5, 1, 0.5), Vector3(0, -1, 0), inside, &intersection_point, &intersection_normal);
CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders.");
CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 1, 0.5)), "find_intersects_ray() border intersection point incorrect.");
CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, 1, 0)), "find_intersects_ray() border intersection normal incorrect.");
// Inside.
aabb_simple.find_intersects_ray(Vector3(0.5, 0.1, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal);
CHECK_MESSAGE(inside == true, "find_intersects_ray() should return inside when inside.");
CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() inside backtracking intersection point incorrect.");
CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() inside intersection normal incorrect.");
// Zero sized AABB.
const AABB aabb_zero = AABB(Vector3(), Vector3(1, 0, 1));
aabb_zero.find_intersects_ray(Vector3(0.5, 0, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal);
CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders of zero sized AABB.");
CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect for zero sized AABB.");
CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() border intersection normal incorrect for zero sized AABB.");
aabb_zero.find_intersects_ray(Vector3(0.5, 0, 0.5), Vector3(0, -1, 0), inside, &intersection_point, &intersection_normal);
CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders of zero sized AABB.");
CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect for zero sized AABB.");
CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, 1, 0)), "find_intersects_ray() border intersection normal incorrect for zero sized AABB.");
aabb_zero.find_intersects_ray(Vector3(0.5, -1, 0.5), Vector3(0, 1, 0), inside, &intersection_point, &intersection_normal);
CHECK_MESSAGE(inside == false, "find_intersects_ray() should return outside on borders of zero sized AABB.");
CHECK_MESSAGE(intersection_point.is_equal_approx(Vector3(0.5, 0, 0.5)), "find_intersects_ray() border intersection point incorrect for zero sized AABB.");
CHECK_MESSAGE(intersection_normal.is_equal_approx(Vector3(0, -1, 0)), "find_intersects_ray() border intersection normal incorrect for zero sized AABB.");
Add a test suite for AABB
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}
TEST_CASE("[AABB] Merging") {
const AABB aabb_big = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
AABB aabb_small = AABB(Vector3(-1.5, 2, -2.5), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.merge(aabb_small).is_equal_approx(aabb_big),
"merge() with fully contained AABB (touching the edge) should return the expected result.");
aabb_small = AABB(Vector3(0.5, 1.5, -2), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.merge(aabb_small).is_equal_approx(AABB(Vector3(-1.5, 1.5, -2.5), Vector3(4, 5.5, 6))),
"merge() with partially contained AABB (overflowing on Y axis) should return the expected result.");
aabb_small = AABB(Vector3(10, -10, -10), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.merge(aabb_small).is_equal_approx(AABB(Vector3(-1.5, -10, -10), Vector3(12.5, 17, 13.5))),
"merge() with non-contained AABB should return the expected result.");
}
TEST_CASE("[AABB] Encloses") {
const AABB aabb_big = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
[Core] Fix `AABB.encloses` failing on shared upper bound This differs from `Rect2(i)` and was fixed for those classes in the past
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CHECK_MESSAGE(
aabb_big.encloses(aabb_big),
"encloses() with itself should return the expected result.");
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AABB aabb_small = AABB(Vector3(-1.5, 2, -2.5), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.encloses(aabb_small),
"encloses() with fully contained AABB (touching the edge) should return the expected result.");
[Core] Fix `AABB.encloses` failing on shared upper bound This differs from `Rect2(i)` and was fixed for those classes in the past
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aabb_small = AABB(Vector3(1.5, 6, 2.5), Vector3(1, 1, 1));
CHECK_MESSAGE(
aabb_big.encloses(aabb_small),
"encloses() with fully contained AABB (touching the edge) should return the expected result.");
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aabb_small = AABB(Vector3(0.5, 1.5, -2), Vector3(1, 1, 1));
CHECK_MESSAGE(
!aabb_big.encloses(aabb_small),
"encloses() with partially contained AABB (overflowing on Y axis) should return the expected result.");
aabb_small = AABB(Vector3(10, -10, -10), Vector3(1, 1, 1));
CHECK_MESSAGE(
!aabb_big.encloses(aabb_small),
"encloses() with non-contained AABB should return the expected result.");
}
TEST_CASE("[AABB] Get endpoints") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
aabb.get_endpoint(0).is_equal_approx(Vector3(-1.5, 2, -2.5)),
"The endpoint at index 0 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(1).is_equal_approx(Vector3(-1.5, 2, 3.5)),
"The endpoint at index 1 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(2).is_equal_approx(Vector3(-1.5, 7, -2.5)),
"The endpoint at index 2 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(3).is_equal_approx(Vector3(-1.5, 7, 3.5)),
"The endpoint at index 3 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(4).is_equal_approx(Vector3(2.5, 2, -2.5)),
"The endpoint at index 4 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(5).is_equal_approx(Vector3(2.5, 2, 3.5)),
"The endpoint at index 5 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(6).is_equal_approx(Vector3(2.5, 7, -2.5)),
"The endpoint at index 6 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(7).is_equal_approx(Vector3(2.5, 7, 3.5)),
"The endpoint at index 7 should match the expected value.");
ERR_PRINT_OFF;
CHECK_MESSAGE(
aabb.get_endpoint(8).is_equal_approx(Vector3()),
"The endpoint at invalid index 8 should match the expected value.");
CHECK_MESSAGE(
aabb.get_endpoint(-1).is_equal_approx(Vector3()),
"The endpoint at invalid index -1 should match the expected value.");
ERR_PRINT_ON;
}
TEST_CASE("[AABB] Get longest/shortest axis") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
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aabb.get_longest_axis() == Vector3(0, 0, 1),
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"get_longest_axis() should return the expected value.");
CHECK_MESSAGE(
aabb.get_longest_axis_index() == Vector3::AXIS_Z,
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"get_longest_axis_index() should return the expected value.");
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CHECK_MESSAGE(
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aabb.get_longest_axis_size() == 6,
"get_longest_axis_size() should return the expected value.");
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CHECK_MESSAGE(
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aabb.get_shortest_axis() == Vector3(1, 0, 0),
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"get_shortest_axis() should return the expected value.");
CHECK_MESSAGE(
aabb.get_shortest_axis_index() == Vector3::AXIS_X,
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"get_shortest_axis_index() should return the expected value.");
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CHECK_MESSAGE(
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aabb.get_shortest_axis_size() == 4,
"get_shortest_axis_size() should return the expected value.");
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}
TEST_CASE("[AABB] Get support") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
Tests: Silence some intentional errors Also fix printing messages in ClassDB test.
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aabb.get_support(Vector3(1, 0, 0)).is_equal_approx(Vector3(2.5, 2, -2.5)),
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"get_support() should return the expected value.");
CHECK_MESSAGE(
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aabb.get_support(Vector3(0.5, 1, 0)).is_equal_approx(Vector3(2.5, 7, -2.5)),
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"get_support() should return the expected value.");
CHECK_MESSAGE(
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aabb.get_support(Vector3(0.5, 1, -400)).is_equal_approx(Vector3(2.5, 7, -2.5)),
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"get_support() should return the expected value.");
CHECK_MESSAGE(
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aabb.get_support(Vector3(0, -1, 0)).is_equal_approx(Vector3(-1.5, 2, -2.5)),
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"get_support() should return the expected value.");
CHECK_MESSAGE(
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aabb.get_support(Vector3(0, -0.1, 0)).is_equal_approx(Vector3(-1.5, 2, -2.5)),
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"get_support() should return the expected value.");
CHECK_MESSAGE(
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aabb.get_support(Vector3()).is_equal_approx(Vector3(-1.5, 2, -2.5)),
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"get_support() should return the expected value with a null vector.");
}
Tests: Silence some intentional errors Also fix printing messages in ClassDB test.
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TEST_CASE("[AABB] Grow") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
aabb.grow(0.25).is_equal_approx(AABB(Vector3(-1.75, 1.75, -2.75), Vector3(4.5, 5.5, 6.5))),
"grow() with positive value should return the expected AABB.");
CHECK_MESSAGE(
aabb.grow(-0.25).is_equal_approx(AABB(Vector3(-1.25, 2.25, -2.25), Vector3(3.5, 4.5, 5.5))),
"grow() with negative value should return the expected AABB.");
CHECK_MESSAGE(
aabb.grow(-10).is_equal_approx(AABB(Vector3(8.5, 12, 7.5), Vector3(-16, -15, -14))),
"grow() with large negative value should return the expected AABB.");
}
TEST_CASE("[AABB] Has point") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
aabb.has_point(Vector3(-1, 3, 0)),
"has_point() with contained point should return the expected value.");
CHECK_MESSAGE(
aabb.has_point(Vector3(2, 3, 0)),
"has_point() with contained point should return the expected value.");
AABB: Improve docs and test for `has_point` Contrarily to the 2D Rect2i counterpart, it doesn't make much sense in 3D and for floating-point AABBs to exclude points on some of its faces.
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CHECK_MESSAGE(
!aabb.has_point(Vector3(-20, 0, 0)),
"has_point() with non-contained point should return the expected value.");
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CHECK_MESSAGE(
aabb.has_point(Vector3(-1.5, 3, 0)),
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"has_point() with positive size should include point on near face (X axis).");
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CHECK_MESSAGE(
aabb.has_point(Vector3(2.5, 3, 0)),
AABB: Improve docs and test for `has_point` Contrarily to the 2D Rect2i counterpart, it doesn't make much sense in 3D and for floating-point AABBs to exclude points on some of its faces.
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"has_point() with positive size should include point on far face (X axis).");
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CHECK_MESSAGE(
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aabb.has_point(Vector3(0, 2, 0)),
"has_point() with positive size should include point on near face (Y axis).");
CHECK_MESSAGE(
aabb.has_point(Vector3(0, 7, 0)),
"has_point() with positive size should include point on far face (Y axis).");
CHECK_MESSAGE(
aabb.has_point(Vector3(0, 3, -2.5)),
"has_point() with positive size should include point on near face (Z axis).");
CHECK_MESSAGE(
aabb.has_point(Vector3(0, 3, 3.5)),
"has_point() with positive size should include point on far face (Z axis).");
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}
TEST_CASE("[AABB] Expanding") {
const AABB aabb = AABB(Vector3(-1.5, 2, -2.5), Vector3(4, 5, 6));
CHECK_MESSAGE(
aabb.expand(Vector3(-1, 3, 0)).is_equal_approx(aabb),
"expand() with contained point should return the expected AABB.");
CHECK_MESSAGE(
aabb.expand(Vector3(2, 3, 0)).is_equal_approx(aabb),
"expand() with contained point should return the expected AABB.");
CHECK_MESSAGE(
aabb.expand(Vector3(-1.5, 3, 0)).is_equal_approx(aabb),
"expand() with contained point on negative edge should return the expected AABB.");
CHECK_MESSAGE(
aabb.expand(Vector3(2.5, 3, 0)).is_equal_approx(aabb),
"expand() with contained point on positive edge should return the expected AABB.");
CHECK_MESSAGE(
aabb.expand(Vector3(-20, 0, 0)).is_equal_approx(AABB(Vector3(-20, 0, -2.5), Vector3(22.5, 7, 6))),
"expand() with non-contained point should return the expected AABB.");
}
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TEST_CASE("[AABB] Finite number checks") {
const Vector3 x(0, 1, 2);
const Vector3 infinite(NAN, NAN, NAN);
CHECK_MESSAGE(
AABB(x, x).is_finite(),
"AABB with all components finite should be finite");
CHECK_FALSE_MESSAGE(
AABB(infinite, x).is_finite(),
"AABB with one component infinite should not be finite.");
CHECK_FALSE_MESSAGE(
AABB(x, infinite).is_finite(),
"AABB with one component infinite should not be finite.");
CHECK_FALSE_MESSAGE(
AABB(infinite, infinite).is_finite(),
"AABB with two components infinite should not be finite.");
}
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} // namespace TestAABB
#endif // TEST_AABB_H