assimp/test/unit/utMaterialSystem.cpp

/*
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Open Asset Import Library (assimp)
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All rights reserved.

Redistribution and use of this software in source and binary forms,
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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*/
#include "UnitTestPCH.h"

#include "Material/MaterialSystem.h"
#include <assimp/scene.h>

using namespace ::std;
using namespace ::Assimp;

class MaterialSystemTest : public ::testing::Test {
public:
    virtual void SetUp() { this->pcMat = new aiMaterial(); }
    virtual void TearDown() { delete this->pcMat; }

protected:
    aiMaterial *pcMat;
};

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testFloatProperty) {
    float pf = 150392.63f;
    this->pcMat->AddProperty(&pf, 1, "testKey1");
    pf = 0.0f;

    EXPECT_EQ(AI_SUCCESS, pcMat->Get("testKey1", 0, 0, pf));
    EXPECT_EQ(150392.63f, pf);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testFloatArrayProperty) {
    float pf[] = { 0.0f, 1.0f, 2.0f, 3.0f };
    unsigned int pMax = sizeof(pf) / sizeof(float);
    this->pcMat->AddProperty(pf, pMax, "testKey2");
    pf[0] = pf[1] = pf[2] = pf[3] = 12.0f;

    EXPECT_EQ(AI_SUCCESS, pcMat->Get("testKey2", 0, 0, pf, &pMax));
    EXPECT_EQ(sizeof(pf) / sizeof(float), static_cast<size_t>(pMax));
    EXPECT_TRUE(!pf[0] && 1.0f == pf[1] && 2.0f == pf[2] && 3.0f == pf[3]);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testIntProperty) {
    int pf = 15039263;
    this->pcMat->AddProperty(&pf, 1, "testKey3");
    pf = 12;

    EXPECT_EQ(AI_SUCCESS, pcMat->Get("testKey3", 0, 0, pf));
    EXPECT_EQ(15039263, pf);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testIntArrayProperty) {
    int pf[] = { 0, 1, 2, 3 };
    unsigned int pMax = sizeof(pf) / sizeof(int);
    this->pcMat->AddProperty(pf, pMax, "testKey4");
    pf[0] = pf[1] = pf[2] = pf[3] = 12;

    EXPECT_EQ(AI_SUCCESS, pcMat->Get("testKey4", 0, 0, pf, &pMax));
    EXPECT_EQ(sizeof(pf) / sizeof(int), pMax);
    EXPECT_TRUE(!pf[0] && 1 == pf[1] && 2 == pf[2] && 3 == pf[3]);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testColorProperty) {
    aiColor4D clr;
    clr.r = 2.0f;
    clr.g = 3.0f;
    clr.b = 4.0f;
    clr.a = 5.0f;
    this->pcMat->AddProperty(&clr, 1, "testKey5");
    clr.b = 1.0f;
    clr.a = clr.g = clr.r = 0.0f;

    EXPECT_EQ(AI_SUCCESS, pcMat->Get("testKey5", 0, 0, clr));
    EXPECT_TRUE(clr.r == 2.0f && clr.g == 3.0f && clr.b == 4.0f && clr.a == 5.0f);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testStringProperty) {
    aiString s;
    s.Set("Hello, this is a small test");
    this->pcMat->AddProperty(&s, "testKey6");
    s.Set("358358");
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("testKey6", 0, 0, s));
    EXPECT_STREQ("Hello, this is a small test", s.data);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testDefaultMaterialName) {
    aiString name = pcMat->GetName();
    const int retValue(strncmp(name.C_Str(), AI_DEFAULT_MATERIAL_NAME, name.length));
    EXPECT_EQ(0, retValue);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testBoolProperty) {
    const bool valTrue = true;
    const bool valFalse = false;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&valTrue, 1, "bool_true"));
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&valFalse, 1, "bool_false"));

    bool read = false;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("bool_true", 0, 0, read));
    EXPECT_TRUE(read) << "read true bool";
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("bool_false", 0, 0, read));
    EXPECT_FALSE(read) << "read false bool";
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testCastIntProperty) {
    int value = 10;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "integer"));
    value = 0;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "zero"));
    value = -1;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "negative"));

    // To float
    float valFloat = 0.0f;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("integer", 0, 0, valFloat));
    EXPECT_EQ(10.0f, valFloat);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("zero", 0, 0, valFloat));
    EXPECT_EQ(0.0f, valFloat);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("negative", 0, 0, valFloat));
    EXPECT_EQ(-1.0f, valFloat);

    // To bool
    bool valBool = false;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("integer", 0, 0, valBool));
    EXPECT_EQ(true, valBool);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("zero", 0, 0, valBool));
    EXPECT_EQ(false, valBool);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("negative", 0, 0, valBool));
    EXPECT_EQ(true, valBool);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testCastFloatProperty) {
    float value = 150392.63f;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "float"));
    value = 0;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "zero"));

    // To int
    int valInt = 0.0f;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("float", 0, 0, valInt));
    EXPECT_EQ(150392, valInt);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("zero", 0, 0, valInt));
    EXPECT_EQ(0, valInt);

    // To bool
    bool valBool = false;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("float", 0, 0, valBool));
    EXPECT_EQ(true, valBool);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("zero", 0, 0, valBool));
    EXPECT_EQ(false, valBool);
}

// ------------------------------------------------------------------------------------------------
TEST_F(MaterialSystemTest, testCastSmallFloatProperty) {
    float value = 0.0078125f;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "float"));
    value = 0;
    EXPECT_EQ(AI_SUCCESS, pcMat->AddProperty(&value, 1, "zero"));

    // To int
    int valInt = 0.0f;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("float", 0, 0, valInt));
    EXPECT_EQ(0, valInt);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("zero", 0, 0, valInt));
    EXPECT_EQ(0, valInt);

    // To bool
    bool valBool = false;
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("float", 0, 0, valBool));
    EXPECT_EQ(true, valBool);
    EXPECT_EQ(AI_SUCCESS, pcMat->Get("zero", 0, 0, valBool));
    EXPECT_EQ(false, valBool);
}

// ------------------------------------------------------------------------------------------------
#if defined(_MSC_VER)
// Refuse to compile on Windows if any enum values are not explicitly handled in the switch
// TODO: Move this into assimp/Compiler as a macro and add clang/gcc versions so other code can use it
__pragma(warning(push));
__pragma(warning(error : 4061)); // enumerator 'identifier' in switch of enum 'enumeration' is not explicitly handled by a case label
__pragma(warning(error : 4062)); // enumerator 'identifier' in switch of enum 'enumeration' is not handled
#endif

TEST_F(MaterialSystemTest, testMaterialTextureTypeEnum) {
    // Verify that AI_TEXTURE_TYPE_MAX equals the largest 'real' value in the enum

    int32_t maxTextureType = 0;
    static constexpr int32_t bigNumber = 255;
    EXPECT_GT(bigNumber, AI_TEXTURE_TYPE_MAX) << "AI_TEXTURE_TYPE_MAX too large for valid enum test, increase bigNumber";

    // Loop until a value larger than any enum
    for (int32_t i = 0; i < bigNumber; ++i) {
        aiTextureType texType = static_cast<aiTextureType>(i);
        switch (texType) {
        default: break;
#ifndef SWIG
        case _aiTextureType_Force32Bit: break;
#endif
            // All the real values
        case aiTextureType_NONE:
        case aiTextureType_DIFFUSE:
        case aiTextureType_SPECULAR:
        case aiTextureType_AMBIENT:
        case aiTextureType_EMISSIVE:
        case aiTextureType_HEIGHT:
        case aiTextureType_NORMALS:
        case aiTextureType_SHININESS:
        case aiTextureType_OPACITY:
        case aiTextureType_DISPLACEMENT:
        case aiTextureType_LIGHTMAP:
        case aiTextureType_REFLECTION:
        case aiTextureType_BASE_COLOR:
        case aiTextureType_NORMAL_CAMERA:
        case aiTextureType_EMISSION_COLOR:
        case aiTextureType_METALNESS:
        case aiTextureType_DIFFUSE_ROUGHNESS:
        case aiTextureType_AMBIENT_OCCLUSION:
        case aiTextureType_SHEEN:
        case aiTextureType_CLEARCOAT:
        case aiTextureType_TRANSMISSION:
        case aiTextureType_UNKNOWN:
            if (i > maxTextureType)
                maxTextureType = i;
            break;
        }
    }

    EXPECT_EQ(maxTextureType, AI_TEXTURE_TYPE_MAX) << "AI_TEXTURE_TYPE_MAX macro must be equal to the largest valid aiTextureType_XXX";
}

#if defined(_MSC_VER)
__pragma (warning(pop))
#endif