elemental-game/Tests/Singleton.template.test.cpp

82 lines
1.8 KiB
C++

/* Singleton.template.test.cpp
* Copyright © 2023 Saul D. Beniquez
* License: Mozilla Public License v. 2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public License,
* v.2.0. If a copy of the MPL was not distributed with this file, You can
* obtain one at https://mozilla.org/MPL/2.0/.
*/
#include "elemental/Singleton.hpp"
#include "test-utils/common.hpp"
#include <exception>
#include <iostream>
#include <optional>
#include <stdexcept>
using elemental::Singleton;
BEGIN_TEST_SUITE("elemental::Singleton<T>")
{
struct SimpleStructure {
uint32_t id;
char name[128];
uint32_t flags;
};
struct NonConstructibleStructure {
uint32_t id;
char name[128];
private:
NonConstructibleStructure(){};
friend class Singleton;
};
TEST("elemental::Singleton<T> - Can wrap a simple class")
{
SimpleStructure stack_obj;
auto& first_reference =
Singleton::getReference<SimpleStructure>();
SECTION("1. No exceptions were thrown")
{
SUCCEED();
}
SECTION("2. Subsequent calls result in the same object being "
"returned")
{
auto& second_reference =
Singleton::getReference<SimpleStructure>();
CHECK(&stack_obj != &first_reference);
CHECK(&first_reference == &second_reference);
}
}
TEST("elemental::Singleton<T> - As a friend class, can call a "
"private constructor")
{
auto& first_reference =
Singleton::getReference<SimpleStructure>();
SECTION("1. No exceptions were thrown")
{
SUCCEED();
}
SECTION("2. Subsequent calls result in the same object being "
"returned")
{
auto& second_reference =
Singleton::getReference<SimpleStructure>();
CHECK(&first_reference == &second_reference);
}
}
}
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