duckhandy/test/unit/bitfield_pack_test.cpp

/* Copyright 2016-2018 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/bitfield_pack.hpp"
#include <cstdint>

TEST_CASE ("Check correctness in BitfieldPack", "[BitfieldPack][containers]") {
	using dhandy::set;
	using dhandy::get;

	{
		dhandy::BitfieldPack<uint8_t, 4, 7, 1> pack(0xAA);
		CHECK(sizeof(pack) == sizeof(uint8_t) * 2);

		CHECK(get<0>(pack) == 0b1010U);
		CHECK(get<1>(pack) == 0b0101010U);
		CHECK(get<2>(pack) == 0b1U);

		set<0>(pack, 2);
		CHECK(get<0>(pack) == 2);
		set<1>(pack, 50);
		CHECK(get<1>(pack) == 50);
		CHECK(get<2>(pack) == 0b1U);
		CHECK(get<0>(pack) == 2);
	}

	{
		dhandy::BitfieldPack<uint16_t, 16, 5, 8, 11, 3, 1, 1> pack;
		set<6>(pack, 1);
		CHECK(get<0>(pack) == 0);
		CHECK(get<1>(pack) == 0);
		CHECK(get<2>(pack) == 0);
		CHECK(get<3>(pack) == 0);
		CHECK(get<4>(pack) == 0);
		CHECK(get<5>(pack) == 0);
		CHECK(get<6>(pack) == 1);

		set<6>(pack, 0);
		CHECK(get<6>(pack) == 0);

		set<6>(pack, 1);
		set<1>(pack, 5);
		CHECK(get<0>(pack) == 0);
		CHECK(get<1>(pack) == 5);
		CHECK(get<2>(pack) == 0);
		CHECK(get<3>(pack) == 0);
		CHECK(get<4>(pack) == 0);
		CHECK(get<5>(pack) == 0);
		CHECK(get<6>(pack) == 1);

		set<1>(pack, 0);
		CHECK(get<1>(pack) == 0);

		set<6>(pack, 1);
		set<1>(pack, 5);
		set<3>(pack, 0b10011001101);
		CHECK(get<0>(pack) == 0);
		CHECK(get<1>(pack) == 5);
		CHECK(get<2>(pack) == 0);
		CHECK(get<3>(pack) == 0b10011001101);
		CHECK(get<4>(pack) == 0);
		CHECK(get<5>(pack) == 0);
		CHECK(get<6>(pack) == 1);
	}
}