LerpTests.cpp

Examples and Unitary Tests for Lerp.

// Copyright (c) 2023 Sapphire development team. All Rights Reserved.
 
#include <gtest/gtest.h>
 
#include <SA/Maths/Algorithms/Lerp.hpp>
 
namespace SA::UT::Lerp
{
    template <typename T>
    class LerpTest : public testing::Test
    {
    };
 
    using TestTypes = ::testing::Types<float, double>;
    TYPED_TEST_SUITE(LerpTest, TestTypes);
 
    TYPED_TEST(LerpTest, Lerp)
    {
        EXPECT_EQ(Maths::Lerp(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 0.0f), TypeParam{  1.0f });
        EXPECT_EQ(Maths::Lerp(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 1.0f), TypeParam{ 5.0f });
        EXPECT_EQ(Maths::Lerp(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 0.5f), TypeParam{ 3.0f });
 
        EXPECT_EQ(Maths::Lerp(TypeParam{ 1.0 }, TypeParam{ 5.0 }, -1.0f), TypeParam{ 1.0f });
        EXPECT_EQ(Maths::Lerp(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 2.0f), TypeParam{ 5.0f });
    }
 
    TYPED_TEST(LerpTest, LerpUnclamped)
    {
        EXPECT_EQ(Maths::LerpUnclamped(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 0.0f), TypeParam{ 1.0 });
        EXPECT_EQ(Maths::LerpUnclamped(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 1.0f), TypeParam{ 5.0 });
        EXPECT_EQ(Maths::LerpUnclamped(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 0.5f), TypeParam{ 3.0 });
        EXPECT_EQ(Maths::LerpUnclamped(TypeParam{ 1.0 }, TypeParam{ 5.0 }, -1.0f), TypeParam{ -3.0 });
        EXPECT_EQ(Maths::LerpUnclamped(TypeParam{ 1.0 }, TypeParam{ 5.0 }, 2.0f), TypeParam{ 9.0 });
    }
 
    TYPED_TEST(LerpTest, SLerp)
    {
        // TODO: Implement.
    }
 
    TYPED_TEST(LerpTest, SLerpUnclamped)
    {
        // TODO: Implement.
    }
}