Add unit tests for JSONRPC

3 files changed, 232 insertions, 0 deletions

diff --git a/modules/jsonrpc/SCsub b/modules/jsonrpc/SCsub
index fe5312670a..8ee4f8bfea 100644
--- a/modules/jsonrpc/SCsub
+++ b/modules/jsonrpc/SCsub
@@ -5,3 +5,10 @@ Import("env_modules")
 
 env_jsonrpc = env_modules.Clone()
 env_jsonrpc.add_source_files(env.modules_sources, "*.cpp")
+
+if env["tests"]:
+    env_jsonrpc.Append(CPPDEFINES=["TESTS_ENABLED"])
+    env_jsonrpc.add_source_files(env.modules_sources, "./tests/*.cpp")
+
+    if env["disable_exceptions"]:
+        env_jsonrpc.Append(CPPDEFINES=["DOCTEST_CONFIG_NO_EXCEPTIONS_BUT_WITH_ALL_ASSERTS"])
diff --git a/modules/jsonrpc/tests/test_jsonrpc.cpp b/modules/jsonrpc/tests/test_jsonrpc.cpp
new file mode 100644
index 0000000000..8500ff6da9
--- /dev/null
+++ b/modules/jsonrpc/tests/test_jsonrpc.cpp
@@ -0,0 +1,86 @@
+/**************************************************************************/
+/*  test_jsonrpc.cpp                                                      */
+/**************************************************************************/
+/*                         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.                 */
+/**************************************************************************/
+
+#include "test_jsonrpc.h"
+
+#include "core/io/json.h"
+
+namespace TestJSONRPC {
+
+void check_error_code(const Dictionary &p_dict, const JSONRPC::ErrorCode &p_code) {
+	CHECK(p_dict["jsonrpc"] == "2.0");
+	REQUIRE(p_dict.has("error"));
+	const Dictionary &err_body = p_dict["error"];
+	const int &code = err_body["code"];
+	CHECK(code == p_code);
+}
+
+void check_invalid(const Dictionary &p_dict) {
+	check_error_code(p_dict, JSONRPC::INVALID_REQUEST);
+}
+
+void check_invalid_string(const String &p_str) {
+	JSON json;
+	REQUIRE(json.parse(p_str) == OK);
+	const Dictionary &dict = json.get_data();
+	check_invalid(dict);
+}
+
+String TestClassJSONRPC::something(const String &p_in) {
+	return p_in + ", please";
+}
+
+void TestClassJSONRPC::_bind_methods() {
+	ClassDB::bind_method(D_METHOD("something", "in"), &TestClassJSONRPC::something);
+}
+
+void test_process_action(const Variant &p_in, const Variant &p_expected, bool p_process_array_elements) {
+	TestClassJSONRPC json_rpc = TestClassJSONRPC();
+	const Variant &observed = json_rpc.process_action(p_in, p_process_array_elements);
+	CHECK(observed == p_expected);
+}
+
+void test_process_string(const String &p_in, const String &p_expected) {
+	TestClassJSONRPC json_rpc = TestClassJSONRPC();
+	const String &out_str = json_rpc.process_string(p_in);
+	CHECK(out_str == p_expected);
+}
+
+void check_error_no_method(const Dictionary &p_dict) {
+	check_error_code(p_dict, JSONRPC::METHOD_NOT_FOUND);
+}
+
+void test_process_action_bad_method(const Dictionary &p_in) {
+	TestClassJSONRPC json_rpc = TestClassJSONRPC();
+	const Dictionary &out_dict = json_rpc.process_action(p_in);
+	check_error_no_method(out_dict);
+}
+
+} // namespace TestJSONRPC
diff --git a/modules/jsonrpc/tests/test_jsonrpc.h b/modules/jsonrpc/tests/test_jsonrpc.h
new file mode 100644
index 0000000000..5770581019
--- /dev/null
+++ b/modules/jsonrpc/tests/test_jsonrpc.h
@@ -0,0 +1,139 @@
+/**************************************************************************/
+/*  test_jsonrpc.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_JSONRPC_H
+#define TEST_JSONRPC_H
+
+#include "tests/test_macros.h"
+#include "tests/test_utils.h"
+
+#include "../jsonrpc.h"
+
+namespace TestJSONRPC {
+
+void check_invalid(const Dictionary &p_dict);
+
+TEST_CASE("[JSONRPC] process_action invalid") {
+	JSONRPC json_rpc = JSONRPC();
+
+	check_invalid(json_rpc.process_action("String is invalid"));
+	check_invalid(json_rpc.process_action(1234));
+	check_invalid(json_rpc.process_action(false));
+	check_invalid(json_rpc.process_action(3.14159));
+}
+
+void check_invalid_string(const String &p_str);
+
+TEST_CASE("[JSONRPC] process_string invalid") {
+	JSONRPC json_rpc = JSONRPC();
+
+	check_invalid_string(json_rpc.process_string("\"String is invalid\""));
+	check_invalid_string(json_rpc.process_string("1234"));
+	check_invalid_string(json_rpc.process_string("false"));
+	check_invalid_string(json_rpc.process_string("3.14159"));
+}
+
+class TestClassJSONRPC : public JSONRPC {
+	GDCLASS(TestClassJSONRPC, JSONRPC)
+
+public:
+	String something(const String &p_in);
+
+protected:
+	static void _bind_methods();
+};
+
+void test_process_action(const Variant &p_in, const Variant &p_expected, bool p_process_array_elements = false);
+
+TEST_CASE("[JSONRPC] process_action Dictionary") {
+	ClassDB::register_class<TestClassJSONRPC>();
+
+	Dictionary in_dict = Dictionary();
+	in_dict["method"] = "something";
+	in_dict["id"] = "ID";
+	in_dict["params"] = "yes";
+
+	Dictionary expected_dict = Dictionary();
+	expected_dict["jsonrpc"] = "2.0";
+	expected_dict["id"] = "ID";
+	expected_dict["result"] = "yes, please";
+
+	test_process_action(in_dict, expected_dict);
+}
+
+TEST_CASE("[JSONRPC] process_action Array") {
+	Array in;
+	Dictionary in_1;
+	in_1["method"] = "something";
+	in_1["id"] = 1;
+	in_1["params"] = "more";
+	in.push_back(in_1);
+	Dictionary in_2;
+	in_2["method"] = "something";
+	in_2["id"] = 2;
+	in_2["params"] = "yes";
+	in.push_back(in_2);
+
+	Array expected;
+	Dictionary expected_1;
+	expected_1["jsonrpc"] = "2.0";
+	expected_1["id"] = 1;
+	expected_1["result"] = "more, please";
+	expected.push_back(expected_1);
+	Dictionary expected_2;
+	expected_2["jsonrpc"] = "2.0";
+	expected_2["id"] = 2;
+	expected_2["result"] = "yes, please";
+	expected.push_back(expected_2);
+
+	test_process_action(in, expected, true);
+}
+
+void test_process_string(const String &p_in, const String &p_expected);
+
+TEST_CASE("[JSONRPC] process_string Dictionary") {
+	const String in = "{\"method\":\"something\",\"id\":\"ID\",\"params\":\"yes\"}";
+	const String expected = "{\"id\":\"ID\",\"jsonrpc\":\"2.0\",\"result\":\"yes, please\"}";
+
+	test_process_string(in, expected);
+}
+
+void test_process_action_bad_method(const Dictionary &p_in);
+
+TEST_CASE("[JSONRPC] process_action bad method") {
+	Dictionary in_dict;
+	in_dict["method"] = "nothing";
+
+	test_process_action_bad_method(in_dict);
+}
+
+} // namespace TestJSONRPC
+
+#endif // TEST_JSONRPC_H