assimp/test/unit/utFindInvalidData.cpp

/*
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Open Asset Import Library (assimp)
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*/
#include "UnitTestPCH.h"

#include "PostProcessing/FindInvalidDataProcess.h"
#include <assimp/mesh.h>

using namespace std;
using namespace Assimp;

class utFindInvalidDataProcess : public ::testing::Test {
public:
    utFindInvalidDataProcess() :
            Test(), mMesh(nullptr), mProcess(nullptr) {
        // empty
    }

protected:
    virtual void SetUp();
    virtual void TearDown();

protected:
    aiMesh *mMesh;
    FindInvalidDataProcess *mProcess;
};

// ------------------------------------------------------------------------------------------------
void utFindInvalidDataProcess::SetUp() {
    ASSERT_TRUE(AI_MAX_NUMBER_OF_TEXTURECOORDS >= 3);

    mProcess = new FindInvalidDataProcess();
    mMesh = new aiMesh();

    mMesh->mNumVertices = 1000;
    mMesh->mVertices = new aiVector3D[1000];
    for (unsigned int i = 0; i < 1000; ++i) {
        mMesh->mVertices[i] = aiVector3D((float)i);
    }

    mMesh->mNormals = new aiVector3D[1000];
    for (unsigned int i = 0; i < 1000; ++i) {
        mMesh->mNormals[i] = aiVector3D((float)i + 1);
    }

    mMesh->mTangents = new aiVector3D[1000];
    for (unsigned int i = 0; i < 1000; ++i) {
        mMesh->mTangents[i] = aiVector3D((float)i);
    }

    mMesh->mBitangents = new aiVector3D[1000];
    for (unsigned int i = 0; i < 1000; ++i) {
        mMesh->mBitangents[i] = aiVector3D((float)i);
    }

    for (unsigned int a = 0; a < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++a) {
        mMesh->mTextureCoords[a] = new aiVector3D[1000];
        for (unsigned int i = 0; i < 1000; ++i) {
            mMesh->mTextureCoords[a][i] = aiVector3D((float)i);
        }
    }
}

// ------------------------------------------------------------------------------------------------
void utFindInvalidDataProcess::TearDown() {
    delete mProcess;
    delete mMesh;
}

// ------------------------------------------------------------------------------------------------
TEST_F(utFindInvalidDataProcess, testStepNegativeResult) {
    ::memset(mMesh->mNormals, 0, mMesh->mNumVertices * sizeof(aiVector3D));
    ::memset(mMesh->mBitangents, 0, mMesh->mNumVertices * sizeof(aiVector3D));

    mMesh->mTextureCoords[2][455] = aiVector3D(std::numeric_limits<float>::quiet_NaN());

    mProcess->ProcessMesh(mMesh);

    EXPECT_TRUE(NULL != mMesh->mVertices);
    EXPECT_EQ(NULL, mMesh->mNormals);
    EXPECT_EQ(NULL, mMesh->mTangents);
    EXPECT_EQ(NULL, mMesh->mBitangents);

    for (unsigned int i = 0; i < 2; ++i) {
        EXPECT_TRUE(NULL != mMesh->mTextureCoords[i]);
    }

    for (unsigned int i = 2; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
        EXPECT_EQ(NULL, mMesh->mTextureCoords[i]);
    }
}

// ------------------------------------------------------------------------------------------------
TEST_F(utFindInvalidDataProcess, testStepPositiveResult) {
    mProcess->ProcessMesh(mMesh);

    EXPECT_NE(nullptr, mMesh->mVertices);

    EXPECT_NE(nullptr, mMesh->mNormals);
    EXPECT_NE(nullptr, mMesh->mTangents);
    EXPECT_NE(nullptr, mMesh->mBitangents);

    for (unsigned int i = 0; i < AI_MAX_NUMBER_OF_TEXTURECOORDS; ++i) {
        EXPECT_NE(nullptr, mMesh->mTextureCoords[i]);
    }
}