Add a test suite for Resource

tests/test_main.cpp

@@ -66,6 +66,7 @@
 #include "test_random_number_generator.h"
 #include "test_rect2.h"
 #include "test_render.h"
+#include "test_resource.h"
 #include "test_shader_lang.h"
 #include "test_string.h"
 #include "test_text_server.h"

tests/test_resource.h

@@ -0,0 +1,114 @@
+/*************************************************************************/
+/*  test_resource.h                                                      */
+/*************************************************************************/
+/*                       This file is part of:                           */
+/*                           GODOT ENGINE                                */
+/*                      https://godotengine.org                          */
+/*************************************************************************/
+/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
+/* Copyright (c) 2014-2021 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_RESOURCE
+#define TEST_RESOURCE
+
+#include "core/io/resource.h"
+#include "core/io/resource_loader.h"
+#include "core/io/resource_saver.h"
+#include "core/os/os.h"
+
+#include "thirdparty/doctest/doctest.h"
+
+namespace TestResource {
+
+TEST_CASE("[Resource] Duplication") {
+	Ref<Resource> resource = memnew(Resource);
+	resource->set_name("Hello world");
+	Ref<Resource> child_resource = memnew(Resource);
+	child_resource->set_name("I'm a child resource");
+	resource->set_meta("other_resource", child_resource);
+
+	Ref<Resource> resource_dupe = resource->duplicate();
+	const Ref<Resource> &resource_dupe_reference = resource_dupe;
+	resource_dupe->set_name("Changed name");
+	child_resource->set_name("My name was changed too");
+
+	CHECK_MESSAGE(
+			resource_dupe->get_name() == "Changed name",
+			"Duplicated resource should have the new name.");
+	CHECK_MESSAGE(
+			resource_dupe_reference->get_name() == "Changed name",
+			"Reference to the duplicated resource should have the new name.");
+	CHECK_MESSAGE(
+			resource->get_name() == "Hello world",
+			"Original resource name should not be affected after editing the duplicate's name.");
+	CHECK_MESSAGE(
+			Ref<Resource>(resource_dupe->get_meta("other_resource"))->get_name() == "My name was changed too",
+			"Duplicated resource should share its child resource with the original.");
+}
+
+TEST_CASE("[Resource] Saving and loading") {
+	Ref<Resource> resource = memnew(Resource);
+	resource->set_name("Hello world");
+	resource->set_meta("    ExampleMetadata    ", Vector2i(40, 80));
+	resource->set_meta("string", "The\nstring\nwith\nunnecessary\nline\n\t\\\nbreaks");
+	Ref<Resource> child_resource = memnew(Resource);
+	child_resource->set_name("I'm a child resource");
+	resource->set_meta("other_resource", child_resource);
+	const String save_path_binary = OS::get_singleton()->get_cache_path().plus_file("resource.res");
+	const String save_path_text = OS::get_singleton()->get_cache_path().plus_file("resource.tres");
+	ResourceSaver::save(save_path_binary, resource);
+	ResourceSaver::save(save_path_text, resource);
+
+	const Ref<Resource> &loaded_resource_binary = ResourceLoader::load(save_path_binary);
+	CHECK_MESSAGE(
+			loaded_resource_binary->get_name() == "Hello world",
+			"The loaded resource name should be equal to the expected value.");
+	CHECK_MESSAGE(
+			loaded_resource_binary->get_meta("    ExampleMetadata    ") == Vector2i(40, 80),
+			"The loaded resource metadata should be equal to the expected value.");
+	CHECK_MESSAGE(
+			loaded_resource_binary->get_meta("string") == "The\nstring\nwith\nunnecessary\nline\n\t\\\nbreaks",
+			"The loaded resource metadata should be equal to the expected value.");
+	const Ref<Resource> &loaded_child_resource_binary = loaded_resource_binary->get_meta("other_resource");
+	CHECK_MESSAGE(
+			loaded_child_resource_binary->get_name() == "I'm a child resource",
+			"The loaded child resource name should be equal to the expected value.");
+
+	const Ref<Resource> &loaded_resource_text = ResourceLoader::load(save_path_text);
+	CHECK_MESSAGE(
+			loaded_resource_text->get_name() == "Hello world",
+			"The loaded resource name should be equal to the expected value.");
+	CHECK_MESSAGE(
+			loaded_resource_text->get_meta("    ExampleMetadata    ") == Vector2i(40, 80),
+			"The loaded resource metadata should be equal to the expected value.");
+	CHECK_MESSAGE(
+			loaded_resource_text->get_meta("string") == "The\nstring\nwith\nunnecessary\nline\n\t\\\nbreaks",
+			"The loaded resource metadata should be equal to the expected value.");
+	const Ref<Resource> &loaded_child_resource_text = loaded_resource_text->get_meta("other_resource");
+	CHECK_MESSAGE(
+			loaded_child_resource_text->get_name() == "I'm a child resource",
+			"The loaded child resource name should be equal to the expected value.");
+}
+} // namespace TestResource
+
+#endif // TEST_RESOURCE