duckhandy/test/unit/resource_pool_test.cpp

/* Copyright 2016-2021 Michele Santullo
 * This file is part of "duckhandy".
 *
 * "duckhandy" 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 3 of the License, or
 * (at your option) any later version.
 *
 * "duckhandy" 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 "duckhandy".  If not, see <http://www.gnu.org/licenses/>.
 */

#include "catch2/catch.hpp"
#include "duckhandy/resource_pool.hpp"
#include <cstdint>

TEST_CASE ("Make operations on the ResourcePool", "[ResourcePool]") {
	using dhandy::ResourcePool;
	int callback_count = 0;

	ResourcePool<int, std::vector<int>> vec_pool([&callback_count](int count) {
		++callback_count;
		std::vector<int> nums(count);
		for (int z = 0; z < count; ++z) {
			nums[z] = z;
		}
		return nums;
	});

	{
		auto vec_10 = vec_pool.make(10);
		REQUIRE(vec_10->size() == 10);
		for (int z = 0; z < 10; ++z) {
			CHECK((*vec_10)[z] == z);
		}
	}
	CHECK(1 == callback_count);
	CHECK(vec_pool.size() == 1);
	{
		auto vec_10 = vec_pool.make(10);
		REQUIRE(vec_10->size() == 10);
		for (int z = 0; z < 10; ++z) {
			CHECK((*vec_10)[z] == z);
		}
	}
	CHECK(1 == callback_count);
	CHECK(vec_pool.size() == 1);

	{
		auto vec_9 = vec_pool.make(9);
		REQUIRE(vec_9->size() == 9);
		for (int z = 0; z < 9; ++z) {
			CHECK((*vec_9)[z] == z);
		}
	}
	CHECK(2 == callback_count);
	CHECK(vec_pool.size() == 2);

	{
		auto vec_10 = vec_pool.make(10);
		REQUIRE(vec_10->size() == 10);
		for (int z = 0; z < 10; ++z) {
			CHECK((*vec_10)[z] == z);
		}
	}
	CHECK(2 == callback_count);
	CHECK(vec_pool.size() == 2);

	{
		auto vec_5 = vec_pool.make(5);
		REQUIRE(vec_5->size() == 5);
		for (int z = 0; z < 5; ++z) {
			CHECK((*vec_5)[z] == z);
		}
	}
	CHECK(3 == callback_count);
	CHECK(vec_pool.size() == 3);
}