EqualsTests.cpp

Examples and Unitary Tests for Equals.

// Copyright (c) 2023 Sapphire development team. All Rights Reserved.
 
#include <gtest/gtest.h>
 
#include <SA/Maths/Algorithms/Equals.hpp>
 
namespace SA::UT::Equals
{
    template <typename T>
    class EqualsTest : public testing::Test
    {
    };
 
    using TestTypes = ::testing::Types<float, double, int32_t, uint32_t>;
    TYPED_TEST_SUITE(EqualsTest, TestTypes);
 
    TYPED_TEST(EqualsTest, Equals)
    {
        const TypeParam defaultVal = static_cast<TypeParam>(1.26);
        const TypeParam epsilon = std::numeric_limits<TypeParam>::epsilon();
 
        EXPECT_TRUE(Maths::Equals(defaultVal, defaultVal));
        EXPECT_TRUE(Maths::Equals(defaultVal, defaultVal + epsilon));
 
        // float / double test only.
        if constexpr (std::is_floating_point_v<TypeParam>)
        {
            EXPECT_FALSE(Maths::Equals(defaultVal, defaultVal + 2 * epsilon));
        }
        
        EXPECT_TRUE(Maths::Equals(defaultVal, defaultVal + 1, TypeParam{ 1 }));
        EXPECT_FALSE(Maths::Equals(defaultVal, defaultVal + 1, epsilon));
    }
}