/*
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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
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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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);
}
