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godot/tests/core/math/test_rect2i.h
Rémi Verschelde 5f56d385b0
Core: Move Rect2i to its own rect2i.h header 
And take the opportunity to improve interdependencies a bit with forward
declares where possible.
2022-02-04 14:17:30 +01:00

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/*************************************************************************/
/* test_rect2i.h */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* 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_RECT2I_H
#define TEST_RECT2I_H
#include "core/math/rect2.h"
#include "core/math/rect2i.h"
#include "thirdparty/doctest/doctest.h"
namespace TestRect2i {
TEST_CASE("[Rect2i] Constructor methods") {
Rect2i recti = Rect2i(0, 100, 1280, 720);
Rect2i recti_vector = Rect2i(Vector2i(0, 100), Vector2i(1280, 720));
Rect2i recti_copy_recti = Rect2i(recti);
Rect2i recti_copy_rect = Rect2i(Rect2(0, 100, 1280, 720));
CHECK_MESSAGE(
recti == recti_vector,
"Rect2is created with the same dimensions but by different methods should be equal.");
CHECK_MESSAGE(
recti == recti_copy_recti,
"Rect2is created with the same dimensions but by different methods should be equal.");
CHECK_MESSAGE(
recti == recti_copy_rect,
"Rect2is created with the same dimensions but by different methods should be equal.");
}
TEST_CASE("[Rect2i] String conversion") {
// Note: This also depends on the Vector2 string representation.
CHECK_MESSAGE(
String(Rect2i(0, 100, 1280, 720)) == "[P: (0, 100), S: (1280, 720)]",
"The string representation should match the expected value.");
}
TEST_CASE("[Rect2i] Basic getters") {
const Rect2i rect = Rect2i(0, 100, 1280, 720);
CHECK_MESSAGE(
rect.get_position() == Vector2i(0, 100),
"get_position() should return the expected value.");
CHECK_MESSAGE(
rect.get_size() == Vector2i(1280, 720),
"get_size() should return the expected value.");
CHECK_MESSAGE(
rect.get_end() == Vector2i(1280, 820),
"get_end() should return the expected value.");
CHECK_MESSAGE(
rect.get_center() == Vector2i(640, 460),
"get_center() should return the expected value.");
CHECK_MESSAGE(
Rect2i(0, 100, 1281, 721).get_center() == Vector2i(640, 460),
"get_center() should return the expected value.");
}
TEST_CASE("[Rect2i] Basic setters") {
Rect2i rect = Rect2i(0, 100, 1280, 720);
rect.set_end(Vector2i(4000, 4000));
CHECK_MESSAGE(
rect == Rect2i(0, 100, 4000, 3900),
"set_end() should result in the expected Rect2i.");
rect = Rect2i(0, 100, 1280, 720);
rect.set_position(Vector2i(4000, 4000));
CHECK_MESSAGE(
rect == Rect2i(4000, 4000, 1280, 720),
"set_position() should result in the expected Rect2i.");
rect = Rect2i(0, 100, 1280, 720);
rect.set_size(Vector2i(4000, 4000));
CHECK_MESSAGE(
rect == Rect2i(0, 100, 4000, 4000),
"set_size() should result in the expected Rect2i.");
}
TEST_CASE("[Rect2i] Area getters") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).get_area() == 921'600,
"get_area() should return the expected value.");
CHECK_MESSAGE(
Rect2i(0, 100, -1280, -720).get_area() == 921'600,
"get_area() should return the expected value.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, -720).get_area() == -921'600,
"get_area() should return the expected value.");
CHECK_MESSAGE(
Rect2i(0, 100, -1280, 720).get_area() == -921'600,
"get_area() should return the expected value.");
CHECK_MESSAGE(
Rect2i(0, 100, 0, 720).get_area() == 0,
"get_area() should return the expected value.");
CHECK_MESSAGE(
!Rect2i(0, 100, 1280, 720).has_no_area(),
"has_no_area() should return the expected value on Rect2i with an area.");
CHECK_MESSAGE(
Rect2i(0, 100, 0, 500).has_no_area(),
"has_no_area() should return the expected value on Rect2i with no area.");
CHECK_MESSAGE(
Rect2i(0, 100, 500, 0).has_no_area(),
"has_no_area() should return the expected value on Rect2i with no area.");
CHECK_MESSAGE(
Rect2i(0, 100, 0, 0).has_no_area(),
"has_no_area() should return the expected value on Rect2i with no area.");
}
TEST_CASE("[Rect2i] Absolute coordinates") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).abs() == Rect2i(0, 100, 1280, 720),
"abs() should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, -100, 1280, 720).abs() == Rect2i(0, -100, 1280, 720),
"abs() should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, -100, -1280, -720).abs() == Rect2i(-1280, -820, 1280, 720),
"abs() should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, -1280, 720).abs() == Rect2i(-1280, 100, 1280, 720),
"abs() should return the expected Rect2i.");
}
TEST_CASE("[Rect2i] Intersection") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).intersection(Rect2i(0, 300, 100, 100)) == Rect2i(0, 300, 100, 100),
"intersection() with fully enclosed Rect2i should return the expected result.");
// The resulting Rect2i is 100 pixels high because the first Rect2i is vertically offset by 100 pixels.
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).intersection(Rect2i(1200, 700, 100, 100)) == Rect2i(1200, 700, 80, 100),
"intersection() with partially enclosed Rect2i should return the expected result.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).intersection(Rect2i(-4000, -4000, 100, 100)) == Rect2i(),
"intersection() with non-enclosed Rect2i should return the expected result.");
}
TEST_CASE("[Rect2i] Enclosing") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).encloses(Rect2i(0, 300, 100, 100)),
"encloses() with fully contained Rect2i should return the expected result.");
CHECK_MESSAGE(
!Rect2i(0, 100, 1280, 720).encloses(Rect2i(1200, 700, 100, 100)),
"encloses() with partially contained Rect2i should return the expected result.");
CHECK_MESSAGE(
!Rect2i(0, 100, 1280, 720).encloses(Rect2i(-4000, -4000, 100, 100)),
"encloses() with non-contained Rect2i should return the expected result.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).encloses(Rect2i(0, 100, 1280, 720)),
"encloses() with identical Rect2i should return the expected result.");
}
TEST_CASE("[Rect2i] Expanding") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).expand(Vector2i(500, 600)) == Rect2i(0, 100, 1280, 720),
"expand() with contained Vector2i should return the expected result.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).expand(Vector2i(0, 0)) == Rect2i(0, 0, 1280, 820),
"expand() with non-contained Vector2i should return the expected result.");
}
TEST_CASE("[Rect2i] Growing") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow(100) == Rect2i(-100, 0, 1480, 920),
"grow() with positive value should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow(-100) == Rect2i(100, 200, 1080, 520),
"grow() with negative value should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow(-4000) == Rect2i(4000, 4100, -6720, -7280),
"grow() with large negative value should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow_individual(100, 200, 300, 400) == Rect2i(-100, -100, 1680, 1320),
"grow_individual() with positive values should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow_individual(-100, 200, 300, -400) == Rect2i(100, -100, 1480, 520),
"grow_individual() with positive and negative values should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow_side(SIDE_TOP, 500) == Rect2i(0, -400, 1280, 1220),
"grow_side() with positive value should return the expected Rect2i.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).grow_side(SIDE_TOP, -500) == Rect2i(0, 600, 1280, 220),
"grow_side() with negative value should return the expected Rect2i.");
}
TEST_CASE("[Rect2i] Has point") {
Rect2i rect = Rect2i(0, 100, 1280, 720);
CHECK_MESSAGE(
rect.has_point(Vector2i(500, 600)),
"has_point() with contained Vector2i should return the expected result.");
CHECK_MESSAGE(
!rect.has_point(Vector2i(0, 0)),
"has_point() with non-contained Vector2i should return the expected result.");
CHECK_MESSAGE(
rect.has_point(rect.position),
"has_point() with positive size should include `position`.");
CHECK_MESSAGE(
rect.has_point(rect.position + Vector2i(1, 1)),
"has_point() with positive size should include `position + (1, 1)`.");
CHECK_MESSAGE(
!rect.has_point(rect.position + Vector2i(1, -1)),
"has_point() with positive size should not include `position + (1, -1)`.");
CHECK_MESSAGE(
!rect.has_point(rect.position + rect.size),
"has_point() with positive size should not include `position + size`.");
CHECK_MESSAGE(
!rect.has_point(rect.position + rect.size + Vector2i(1, 1)),
"has_point() with positive size should not include `position + size + (1, 1)`.");
CHECK_MESSAGE(
rect.has_point(rect.position + rect.size + Vector2i(-1, -1)),
"has_point() with positive size should include `position + size + (-1, -1)`.");
CHECK_MESSAGE(
!rect.has_point(rect.position + rect.size + Vector2i(-1, 1)),
"has_point() with positive size should not include `position + size + (-1, 1)`.");
CHECK_MESSAGE(
rect.has_point(rect.position + Vector2i(0, 10)),
"has_point() with point located on left edge should return true.");
CHECK_MESSAGE(
!rect.has_point(rect.position + Vector2i(rect.size.x, 10)),
"has_point() with point located on right edge should return false.");
CHECK_MESSAGE(
rect.has_point(rect.position + Vector2i(10, 0)),
"has_point() with point located on top edge should return true.");
CHECK_MESSAGE(
!rect.has_point(rect.position + Vector2i(10, rect.size.y)),
"has_point() with point located on bottom edge should return false.");
/*
// FIXME: Disabled for now until GH-37617 is fixed one way or another.
// More tests should then be written like for the positive size case.
rect = Rect2i(0, 100, -1280, -720);
CHECK_MESSAGE(
rect.has_point(rect.position),
"has_point() with negative size should include `position`.");
CHECK_MESSAGE(
!rect.has_point(rect.position + rect.size),
"has_point() with negative size should not include `position + size`.");
*/
rect = Rect2i(-4000, -200, 1280, 720);
CHECK_MESSAGE(
rect.has_point(rect.position + Vector2i(0, 10)),
"has_point() with negative position and point located on left edge should return true.");
CHECK_MESSAGE(
!rect.has_point(rect.position + Vector2i(rect.size.x, 10)),
"has_point() with negative position and point located on right edge should return false.");
CHECK_MESSAGE(
rect.has_point(rect.position + Vector2i(10, 0)),
"has_point() with negative position and point located on top edge should return true.");
CHECK_MESSAGE(
!rect.has_point(rect.position + Vector2i(10, rect.size.y)),
"has_point() with negative position and point located on bottom edge should return false.");
}
TEST_CASE("[Rect2i] Intersection") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).intersects(Rect2i(0, 300, 100, 100)),
"intersects() with fully enclosed Rect2i should return the expected result.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).intersects(Rect2i(1200, 700, 100, 100)),
"intersects() with partially enclosed Rect2i should return the expected result.");
CHECK_MESSAGE(
!Rect2i(0, 100, 1280, 720).intersects(Rect2i(-4000, -4000, 100, 100)),
"intersects() with non-enclosed Rect2i should return the expected result.");
CHECK_MESSAGE(
!Rect2i(0, 0, 2, 2).intersects(Rect2i(2, 2, 2, 2)),
"intersects() with adjacent Rect2i should return the expected result.");
}
TEST_CASE("[Rect2i] Merging") {
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).merge(Rect2i(0, 300, 100, 100)) == Rect2i(0, 100, 1280, 720),
"merge() with fully enclosed Rect2i should return the expected result.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).merge(Rect2i(1200, 700, 100, 100)) == Rect2i(0, 100, 1300, 720),
"merge() with partially enclosed Rect2i should return the expected result.");
CHECK_MESSAGE(
Rect2i(0, 100, 1280, 720).merge(Rect2i(-4000, -4000, 100, 100)) == Rect2i(-4000, -4000, 5280, 4820),
"merge() with non-enclosed Rect2i should return the expected result.");
}
} // namespace TestRect2i
#endif // TEST_RECT2I_H
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