Merge pull request #43514 from Calinou/test-add-rect2-rect2i

Add a test suite for Rect2 and Rect2i

tests/test_main.cpp

@@ -52,6 +52,7 @@
 #include "test_pck_packer.h"
 #include "test_physics_2d.h"
 #include "test_physics_3d.h"
+#include "test_rect2.h"
 #include "test_render.h"
 #include "test_shader_lang.h"
 #include "test_string.h"

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