#include <gtest/gtest.h>
#include <XCEngine/Resources/Texture/Texture.h>
#include <XCEngine/Core/Asset/ResourceTypes.h>
#include <XCEngine/Core/Asset/ResourceManager.h>

using namespace XCEngine::Resources;

namespace {

TEST(Texture, DefaultConstructor) {
    Texture texture;
    EXPECT_EQ(texture.GetWidth(), 0u);
    EXPECT_EQ(texture.GetHeight(), 0u);
    EXPECT_EQ(texture.GetDepth(), 1u);
    EXPECT_EQ(texture.GetMipLevels(), 1u);
    EXPECT_EQ(texture.GetArraySize(), 1u);
    EXPECT_EQ(texture.GetTextureType(), TextureType::Texture2D);
    EXPECT_EQ(texture.GetFormat(), TextureFormat::RGBA8_UNORM);
    EXPECT_EQ(texture.GetUsage(), TextureUsage::ShaderResource);
}

TEST(Texture, GetMemorySize) {
    Texture texture;
    EXPECT_EQ(texture.GetMemorySize(), 0u);
}

TEST(Texture, GetType) {
    Texture texture;
    EXPECT_EQ(texture.GetType(), ResourceType::Texture);
}

TEST(Texture, IsValid) {
    Texture texture;
    EXPECT_FALSE(texture.IsValid());
}

TEST(Texture, CreatePreservesExplicitTextureCubeArraySize) {
    Texture texture;
    const unsigned char pixels[6 * 4] = {
        255, 255, 255, 255,
        255, 255, 255, 255,
        255, 255, 255, 255,
        255, 255, 255, 255,
        255, 255, 255, 255,
        255, 255, 255, 255
    };

    ASSERT_TRUE(texture.Create(
        1,
        1,
        1,
        1,
        TextureType::TextureCube,
        TextureFormat::RGBA8_UNORM,
        pixels,
        sizeof(pixels),
        6));
    EXPECT_EQ(texture.GetTextureType(), TextureType::TextureCube);
    EXPECT_EQ(texture.GetArraySize(), 6u);
    EXPECT_EQ(texture.GetPixelDataSize(), sizeof(pixels));
}

} // namespace