Add unit tests for Parallax2D

- Added test cases for setting and getting key properties of Parallax2D, including:
  - Scroll scale
  - Repeat size and times
  - Autoscroll
  - Scroll and screen offset
  - Limit begin and end
  - Follow viewport and ignore camera scroll flags

tests/scene/test_parallax_2d.h

@@ -0,0 +1,131 @@
+/**************************************************************************/
+/*  test_parallax_2d.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_PARALLAX_2D_H
+#define TEST_PARALLAX_2D_H
+
+#include "scene/2d/parallax_2d.h"
+#include "tests/test_macros.h"
+
+namespace TestParallax2D {
+
+// Test cases for the Parallax2D class to ensure its properties are set and retrieved correctly.
+
+TEST_CASE("[SceneTree][Parallax2D] Scroll Scale") {
+	// Test setting and getting the scroll scale.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Size2 scale(2, 2);
+	parallax->set_scroll_scale(scale);
+	CHECK(parallax->get_scroll_scale() == scale);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Repeat Size") {
+	// Test setting and getting the repeat size.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Size2 size(100, 100);
+	parallax->set_repeat_size(size);
+	CHECK(parallax->get_repeat_size() == size);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Repeat Times") {
+	// Test setting and getting the repeat times.
+	Parallax2D *parallax = memnew(Parallax2D);
+	int times = 5;
+	parallax->set_repeat_times(times);
+	CHECK(parallax->get_repeat_times() == times);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Autoscroll") {
+	// Test setting and getting the autoscroll values.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Point2 autoscroll(1, 1);
+	parallax->set_autoscroll(autoscroll);
+	CHECK(parallax->get_autoscroll() == autoscroll);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Scroll Offset") {
+	// Test setting and getting the scroll offset.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Point2 offset(10, 10);
+	parallax->set_scroll_offset(offset);
+	CHECK(parallax->get_scroll_offset() == offset);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Screen Offset") {
+	// Test setting and getting the screen offset.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Point2 offset(20, 20);
+	parallax->set_screen_offset(offset);
+	CHECK(parallax->get_screen_offset() == offset);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Limit Begin") {
+	// Test setting and getting the limit begin values.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Point2 limit_begin(-100, -100);
+	parallax->set_limit_begin(limit_begin);
+	CHECK(parallax->get_limit_begin() == limit_begin);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Limit End") {
+	// Test setting and getting the limit end values.
+	Parallax2D *parallax = memnew(Parallax2D);
+	Point2 limit_end(100, 100);
+	parallax->set_limit_end(limit_end);
+	CHECK(parallax->get_limit_end() == limit_end);
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Follow Viewport") {
+	// Test setting and getting the follow viewport flag.
+	Parallax2D *parallax = memnew(Parallax2D);
+	parallax->set_follow_viewport(false);
+	CHECK_FALSE(parallax->get_follow_viewport());
+	memdelete(parallax);
+}
+
+TEST_CASE("[SceneTree][Parallax2D] Ignore Camera Scroll") {
+	// Test setting and getting the ignore camera scroll flag.
+	Parallax2D *parallax = memnew(Parallax2D);
+	parallax->set_ignore_camera_scroll(true);
+	CHECK(parallax->is_ignore_camera_scroll());
+	memdelete(parallax);
+}
+
+} // namespace TestParallax2D
+
+#endif // TEST_PARALLAX_2D_H

tests/test_main.cpp

@@ -119,6 +119,7 @@
 #include "tests/scene/test_node.h"
 #include "tests/scene/test_node_2d.h"
 #include "tests/scene/test_packed_scene.h"
+#include "tests/scene/test_parallax_2d.h"
 #include "tests/scene/test_path_2d.h"
 #include "tests/scene/test_path_follow_2d.h"
 #include "tests/scene/test_sprite_frames.h"