M5Utility/test/math_test.cpp

/*
 * SPDX-FileCopyrightText: 2024 M5Stack Technology CO LTD
 *
 * SPDX-License-Identifier: MIT
 */
/*
  UnitTest for M5Utility
*/
#include <gtest/gtest.h>
#include <M5Utility.hpp>

TEST(Utility, is_powerof2)
{
    EXPECT_FALSE(m5::math::is_powerof2(0));
    EXPECT_TRUE(m5::math::is_powerof2(1));
    EXPECT_TRUE(m5::math::is_powerof2(2));
    EXPECT_FALSE(m5::math::is_powerof2(3));

    constexpr auto b = m5::math::is_powerof2(-1);
    EXPECT_FALSE(b);
    EXPECT_FALSE(m5::math::is_powerof2(-2));
}