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Diffstat (limited to 'tests/test_rect2.h')
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diff --git a/tests/test_rect2.h b/tests/test_rect2.h new file mode 100644 index 0000000000..aefceb1128 --- /dev/null +++ b/tests/test_rect2.h @@ -0,0 +1,467 @@ +/*************************************************************************/ +/* test_rect2.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2020 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_RECT2_H +#define TEST_RECT2_H + +#include "core/math/rect2.h" + +#include "thirdparty/doctest/doctest.h" + +namespace TestRect2 { +// We also test Rect2i here, for consistency with the source code where Rect2 +// and Rect2i are defined in the same file. + +// Rect2 + +TEST_CASE("[Rect2] Constructor methods") { + const Rect2 rect = Rect2(0, 100, 1280, 720); + const Rect2 rect_vector = Rect2(Vector2(0, 100), Vector2(1280, 720)); + const Rect2 rect_copy_rect = Rect2(rect); + const Rect2 rect_copy_recti = Rect2(Rect2i(0, 100, 1280, 720)); + + CHECK_MESSAGE( + rect == rect_vector, + "Rect2s created with the same dimensions but by different methods should be equal."); + CHECK_MESSAGE( + rect == rect_copy_rect, + "Rect2s created with the same dimensions but by different methods should be equal."); + CHECK_MESSAGE( + rect == rect_copy_recti, + "Rect2s created with the same dimensions but by different methods should be equal."); +} + +TEST_CASE("[Rect2] String conversion") { + // Note: This also depends on the Vector2 string representation. + CHECK_MESSAGE( + String(Rect2(0, 100, 1280, 720)) == "0, 100, 1280, 720", + "The string representation should match the expected value."); +} + +TEST_CASE("[Rect2] Basic getters") { + const Rect2 rect = Rect2(0, 100, 1280, 720); + CHECK_MESSAGE( + rect.get_position().is_equal_approx(Vector2(0, 100)), + "get_position() should return the expected value."); + CHECK_MESSAGE( + rect.get_size().is_equal_approx(Vector2(1280, 720)), + "get_size() should return the expected value."); + CHECK_MESSAGE( + rect.get_end().is_equal_approx(Vector2(1280, 820)), + "get_end() should return the expected value."); +} + +TEST_CASE("[Rect2] Basic setters") { + Rect2 rect = Rect2(0, 100, 1280, 720); + rect.set_end(Vector2(4000, 4000)); + CHECK_MESSAGE( + rect.is_equal_approx(Rect2(0, 100, 4000, 3900)), + "set_end() should result in the expected Rect2."); + + rect = Rect2(0, 100, 1280, 720); + rect.set_position(Vector2(4000, 4000)); + CHECK_MESSAGE( + rect.is_equal_approx(Rect2(4000, 4000, 1280, 720)), + "set_position() should result in the expected Rect2."); + + rect = Rect2(0, 100, 1280, 720); + rect.set_size(Vector2(4000, 4000)); + CHECK_MESSAGE( + rect.is_equal_approx(Rect2(0, 100, 4000, 4000)), + "set_size() should result in the expected Rect2."); +} + +TEST_CASE("[Rect2] Area getters") { + CHECK_MESSAGE( + Math::is_equal_approx(Rect2(0, 100, 1280, 720).get_area(), 921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_equal_approx(Rect2(0, 100, -1280, -720).get_area(), 921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_equal_approx(Rect2(0, 100, 1280, -720).get_area(), -921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_equal_approx(Rect2(0, 100, -1280, 720).get_area(), -921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_zero_approx(Rect2(0, 100, 0, 720).get_area()), + "get_area() should return the expected value."); + + CHECK_MESSAGE( + !Rect2(0, 100, 1280, 720).has_no_area(), + "has_no_area() should return the expected value on Rect2 with an area."); + CHECK_MESSAGE( + Rect2(0, 100, 0, 500).has_no_area(), + "has_no_area() should return the expected value on Rect2 with no area."); + CHECK_MESSAGE( + Rect2(0, 100, 500, 0).has_no_area(), + "has_no_area() should return the expected value on Rect2 with no area."); + CHECK_MESSAGE( + Rect2(0, 100, 0, 0).has_no_area(), + "has_no_area() should return the expected value on Rect2 with no area."); +} + +TEST_CASE("[Rect2] Absolute coordinates") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).abs().is_equal_approx(Rect2(0, 100, 1280, 720)), + "abs() should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, -100, 1280, 720).abs().is_equal_approx(Rect2(0, -100, 1280, 720)), + "abs() should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, -100, -1280, -720).abs().is_equal_approx(Rect2(-1280, -820, 1280, 720)), + "abs() should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, 100, -1280, 720).abs().is_equal_approx(Rect2(-1280, 100, 1280, 720)), + "abs() should return the expected Rect2."); +} + +TEST_CASE("[Rect2] Clipping") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).clip(Rect2(0, 300, 100, 100)).is_equal_approx(Rect2(0, 300, 100, 100)), + "clip() with fully enclosed Rect2 should return the expected result."); + // The resulting Rect2 is 100 pixels high because the first Rect2 is vertically offset by 100 pixels. + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).clip(Rect2(1200, 700, 100, 100)).is_equal_approx(Rect2(1200, 700, 80, 100)), + "clip() with partially enclosed Rect2 should return the expected result."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).clip(Rect2(-4000, -4000, 100, 100)).is_equal_approx(Rect2()), + "clip() with non-enclosed Rect2 should return the expected result."); +} + +TEST_CASE("[Rect2] Enclosing") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).encloses(Rect2(0, 300, 100, 100)), + "clip() with fully contained Rect2 should return the expected result."); + CHECK_MESSAGE( + !Rect2(0, 100, 1280, 720).encloses(Rect2(1200, 700, 100, 100)), + "clip() with partially contained Rect2 should return the expected result."); + CHECK_MESSAGE( + !Rect2(0, 100, 1280, 720).encloses(Rect2(-4000, -4000, 100, 100)), + "clip() with non-contained Rect2 should return the expected result."); +} + +TEST_CASE("[Rect2] Expanding") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).expand(Vector2(500, 600)).is_equal_approx(Rect2(0, 100, 1280, 720)), + "expand() with contained Vector2 should return the expected result."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).expand(Vector2(0, 0)).is_equal_approx(Rect2(0, 0, 1280, 820)), + "expand() with non-contained Vector2 should return the expected result."); +} + +TEST_CASE("[Rect2] Growing") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow(100).is_equal_approx(Rect2(-100, 0, 1480, 920)), + "grow() with positive value should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow(-100).is_equal_approx(Rect2(100, 200, 1080, 520)), + "grow() with negative value should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow(-4000).is_equal_approx(Rect2(4000, 4100, -6720, -7280)), + "grow() with large negative value should return the expected Rect2."); + + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow_individual(100, 200, 300, 400).is_equal_approx(Rect2(-100, -100, 1680, 1320)), + "grow_individual() with positive values should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow_individual(-100, 200, 300, -400).is_equal_approx(Rect2(100, -100, 1480, 520)), + "grow_individual() with positive and negative values should return the expected Rect2."); + + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow_margin(MARGIN_TOP, 500).is_equal_approx(Rect2(0, -400, 1280, 1220)), + "grow_margin() with positive value should return the expected Rect2."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).grow_margin(MARGIN_TOP, -500).is_equal_approx(Rect2(0, 600, 1280, 220)), + "grow_margin() with negative value should return the expected Rect2."); +} + +TEST_CASE("[Rect2] Has point") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).has_point(Vector2(500, 600)), + "has_point() with contained Vector2 should return the expected result."); + CHECK_MESSAGE( + !Rect2(0, 100, 1280, 720).has_point(Vector2(0, 0)), + "has_point() with non-contained Vector2 should return the expected result."); + + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).has_point(Vector2(0, 110)), + "has_point() with positive Vector2 on left edge should return the expected result."); + CHECK_MESSAGE( + !Rect2(0, 100, 1280, 720).has_point(Vector2(1280, 110)), + "has_point() with positive Vector2 on right edge should return the expected result."); + + CHECK_MESSAGE( + Rect2(-4000, 100, 1280, 720).has_point(Vector2(-4000, 110)), + "has_point() with negative Vector2 on left edge should return the expected result."); + CHECK_MESSAGE( + !Rect2(-4000, 100, 1280, 720).has_point(Vector2(-2720, 110)), + "has_point() with negative Vector2 on right edge should return the expected result."); +} + +TEST_CASE("[Rect2] Intersection") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).intersects(Rect2(0, 300, 100, 100)), + "intersects() with fully enclosed Rect2 should return the expected result."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).intersects(Rect2(1200, 700, 100, 100)), + "intersects() with partially enclosed Rect2 should return the expected result."); + CHECK_MESSAGE( + !Rect2(0, 100, 1280, 720).intersects(Rect2(-4000, -4000, 100, 100)), + "intersects() with non-enclosed Rect2 should return the expected result."); +} + +TEST_CASE("[Rect2] Merging") { + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).merge(Rect2(0, 300, 100, 100)).is_equal_approx(Rect2(0, 100, 1280, 720)), + "merge() with fully enclosed Rect2 should return the expected result."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).merge(Rect2(1200, 700, 100, 100)).is_equal_approx(Rect2(0, 100, 1300, 720)), + "merge() with partially enclosed Rect2 should return the expected result."); + CHECK_MESSAGE( + Rect2(0, 100, 1280, 720).merge(Rect2(-4000, -4000, 100, 100)).is_equal_approx(Rect2(-4000, -4000, 5280, 4820)), + "merge() with non-enclosed Rect2 should return the expected result."); +} + +// Rect2i + +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)) == "0, 100, 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."); +} + +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( + Math::is_equal_approx(Rect2i(0, 100, 1280, 720).get_area(), 921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_equal_approx(Rect2i(0, 100, -1280, -720).get_area(), 921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_equal_approx(Rect2i(0, 100, 1280, -720).get_area(), -921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_equal_approx(Rect2i(0, 100, -1280, 720).get_area(), -921'600), + "get_area() should return the expected value."); + CHECK_MESSAGE( + Math::is_zero_approx(Rect2i(0, 100, 0, 720).get_area()), + "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] Clipping") { + CHECK_MESSAGE( + Rect2i(0, 100, 1280, 720).clip(Rect2i(0, 300, 100, 100)) == Rect2i(0, 300, 100, 100), + "clip() 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).clip(Rect2i(1200, 700, 100, 100)) == Rect2i(1200, 700, 80, 100), + "clip() with partially enclosed Rect2i should return the expected result."); + CHECK_MESSAGE( + Rect2i(0, 100, 1280, 720).clip(Rect2i(-4000, -4000, 100, 100)) == Rect2i(), + "clip() 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)), + "clip() with fully contained Rect2i should return the expected result."); + CHECK_MESSAGE( + !Rect2i(0, 100, 1280, 720).encloses(Rect2i(1200, 700, 100, 100)), + "clip() with partially contained Rect2i should return the expected result."); + CHECK_MESSAGE( + !Rect2i(0, 100, 1280, 720).encloses(Rect2i(-4000, -4000, 100, 100)), + "clip() with non-contained 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_margin(MARGIN_TOP, 500) == Rect2i(0, -400, 1280, 1220), + "grow_margin() with positive value should return the expected Rect2i."); + CHECK_MESSAGE( + Rect2i(0, 100, 1280, 720).grow_margin(MARGIN_TOP, -500) == Rect2i(0, 600, 1280, 220), + "grow_margin() with negative value should return the expected Rect2i."); +} + +TEST_CASE("[Rect2i] Has point") { + CHECK_MESSAGE( + Rect2i(0, 100, 1280, 720).has_point(Vector2i(500, 600)), + "has_point() with contained Vector2i should return the expected result."); + CHECK_MESSAGE( + !Rect2i(0, 100, 1280, 720).has_point(Vector2i(0, 0)), + "has_point() with non-contained Vector2i should return the expected result."); + + CHECK_MESSAGE( + Rect2i(0, 100, 1280, 720).has_point(Vector2(0, 110)), + "has_point() with positive Vector2 on left edge should return the expected result."); + CHECK_MESSAGE( + !Rect2i(0, 100, 1280, 720).has_point(Vector2(1280, 110)), + "has_point() with positive Vector2 on right edge should return the expected result."); + + CHECK_MESSAGE( + Rect2i(-4000, 100, 1280, 720).has_point(Vector2(-4000, 110)), + "has_point() with negative Vector2 on left edge should return the expected result."); + CHECK_MESSAGE( + !Rect2i(-4000, 100, 1280, 720).has_point(Vector2(-2720, 110)), + "has_point() with negative Vector2 on right edge should return the expected result."); +} + +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."); +} + +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 TestRect2 + +#endif // TEST_RECT2_H |