/*
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Open Asset Import Library (assimp)
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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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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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*/
#include "UnitTestPCH.h"

#include "PostProcessing/GenVertexNormalsProcess.h"

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

class GenNormalsTest : public ::testing::Test {
public:
    virtual void SetUp();
    virtual void TearDown();

protected:
    aiMesh *pcMesh;
    GenVertexNormalsProcess *piProcess;
};

// ------------------------------------------------------------------------------------------------
void GenNormalsTest::SetUp() {
    piProcess = new GenVertexNormalsProcess();
    pcMesh = new aiMesh();
    pcMesh->mPrimitiveTypes = aiPrimitiveType_TRIANGLE;
    pcMesh->mNumFaces = 1;
    pcMesh->mFaces = new aiFace[1];
    pcMesh->mFaces[0].mIndices = new unsigned int[pcMesh->mFaces[0].mNumIndices = 3];
    pcMesh->mFaces[0].mIndices[0] = 0;
    pcMesh->mFaces[0].mIndices[1] = 1;
    pcMesh->mFaces[0].mIndices[2] = 1;
    pcMesh->mNumVertices = 3;
    pcMesh->mVertices = new aiVector3D[3];
    pcMesh->mVertices[0] = aiVector3D(0.0f, 1.0f, 6.0f);
    pcMesh->mVertices[1] = aiVector3D(2.0f, 3.0f, 1.0f);
    pcMesh->mVertices[2] = aiVector3D(3.0f, 2.0f, 4.0f);
}

// ------------------------------------------------------------------------------------------------
void GenNormalsTest::TearDown() {
    delete this->pcMesh;
    delete this->piProcess;
}

// ------------------------------------------------------------------------------------------------
TEST_F(GenNormalsTest, testSimpleTriangle) {
    piProcess->GenMeshVertexNormals(pcMesh, 0);
    EXPECT_TRUE(pcMesh->mNormals != NULL);
}
