Differential D2818 Diff 16188 ps/trunk/source/scriptinterface/tests/test_FunctionWrapper.h

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ps/trunk/source/scriptinterface/tests/test_FunctionWrapper.h

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				/* Copyright (C) 2021 Wildfire Games.
				* This file is part of 0 A.D.
				*
				* 0 A.D. is free software: you can redistribute it and/or modify
				* it under the terms of the GNU General Public License as published by
				* the Free Software Foundation, either version 2 of the License, or
				* (at your option) any later version.
				*
				* 0 A.D. is distributed in the hope that it will be useful,
				* but WITHOUT ANY WARRANTY; without even the implied warranty of
				* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
				* GNU General Public License for more details.
				*
				* You should have received a copy of the GNU General Public License
				* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
				*/

				#include "lib/self_test.h"

				#include "scriptinterface/FunctionWrapper.h"

				class TestFunctionWrapper : public CxxTest::TestSuite
				{
				public:

				// TODO C++20: use lambda functions directly, names are 'N params, void/returns'.
				static void _1p_v(int) {};
				static void _3p_v(int, bool, std::string) {};
				static int _3p_r(int a, bool, std::string) { return a; };

				static void _0p_v() {};
				static int _0p_r() { return 1; };

				void test_simple_wrappers()
				{
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_1p_v>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_3p_v>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_3p_r>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_0p_v>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_0p_r>), JSNative>);
				}

				static void _handle(JS::HandleValue) {};
				static void _handle_2(int, JS::HandleValue, bool) {};

				static void _cmpt_private(ScriptInterface::CmptPrivate*) {};
				static int _cmpt_private_2(ScriptInterface::CmptPrivate*, int a, bool) { return a; };

				static void _script_request(const ScriptRequest&) {};
				static int _script_request_2(const ScriptRequest&, int a, bool) { return a; };

				void test_special_wrappers()
				{
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_handle>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_handle_2>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_cmpt_private>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_cmpt_private_2>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_script_request>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::_script_request_2>), JSNative>);
				}

				class test_method
				{
				public:
				void method_1() {};
				int method_2(int, const int&) { return 4; };
				void const_method_1() const {};
				int const_method_2(int, const int&) const { return 4; };
				};

				void test_method_wrappers()
				{
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::test_method::method_1>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::test_method::method_2>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::test_method::const_method_1>), JSNative>);
				static_assert(std::is_same_v<decltype(&ScriptFunction::ToJSNative<&TestFunctionWrapper::test_method::const_method_2>), JSNative>);
				}

				void test_calling()
				{
				ScriptInterface script("Test", "Test", g_ScriptContext);
				ScriptRequest rq(script);

				ScriptFunction::Register<&TestFunctionWrapper::_1p_v>(script, "_1p_v");
				{
				std::string input = "Test._1p_v(0);";
				JS::RootedValue val(rq.cx);
				TS_ASSERT(script.Eval(input.c_str(), &val));
				}

				ScriptFunction::Register<&TestFunctionWrapper::_3p_r>(script, "_3p_r");
				{
				std::string input = "Test._3p_r(4, false, 'test');";
				int ret = 0;
				TS_ASSERT(script.Eval(input.c_str(), ret));
				TS_ASSERT_EQUALS(ret, 4);
				}

				ScriptFunction::Register<&TestFunctionWrapper::_cmpt_private_2>(script, "_cmpt_private_2");
				{
				std::string input = "Test._cmpt_private_2(4);";
				int ret = 0;
				TS_ASSERT(script.Eval(input.c_str(), ret));
				TS_ASSERT_EQUALS(ret, 4);
				}
				}
				};