assimp/test/unit/utFBXImporterExporter.cpp

/*
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#include "UnitTestPCH.h"
#include "SceneDiffer.h"
#include "AbstractImportExportBase.h"

#include <assimp/Importer.hpp>
#include <assimp/postprocess.h>
#include <assimp/material.h>
#include <assimp/scene.h>
#include <assimp/types.h>

using namespace Assimp;

class utFBXImporterExporter : public AbstractImportExportBase {
public:
    virtual bool importerTest() {
        Assimp::Importer importer;
        const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/FBX/spider.fbx", aiProcess_ValidateDataStructure );
        return nullptr != scene;
    }
};

TEST_F( utFBXImporterExporter, importXFromFileTest ) {
    EXPECT_TRUE( importerTest() );
}

TEST_F( utFBXImporterExporter, importBareBoxWithoutColorsAndTextureCoords ) {
    Assimp::Importer importer;
    const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/FBX/box.fbx", aiProcess_ValidateDataStructure );
    EXPECT_NE( nullptr, scene );
    EXPECT_EQ(scene->mNumMeshes, 1);
    aiMesh* mesh = scene->mMeshes[0];
    EXPECT_EQ(mesh->mNumFaces, 12);
    EXPECT_EQ(mesh->mNumVertices, 36);
}

TEST_F( utFBXImporterExporter, importPhongMaterial ) {
    Assimp::Importer importer;
    const aiScene *scene = importer.ReadFile( ASSIMP_TEST_MODELS_DIR "/FBX/phong_cube.fbx", aiProcess_ValidateDataStructure );
    EXPECT_NE( nullptr, scene );
    EXPECT_EQ( (unsigned int)1, scene->mNumMaterials );
    const aiMaterial *mat = scene->mMaterials[0];
    EXPECT_NE( nullptr, mat );
    float f; aiColor3D c;
    // phong_cube.fbx has all properties defined
    EXPECT_EQ( mat->Get(AI_MATKEY_COLOR_DIFFUSE, c), aiReturn_SUCCESS );
    EXPECT_EQ( c, aiColor3D(0.5, 0.25, 0.25) );
    EXPECT_EQ( mat->Get(AI_MATKEY_COLOR_SPECULAR, c), aiReturn_SUCCESS );
    EXPECT_EQ( c, aiColor3D(0.25, 0.25, 0.5) );
    EXPECT_EQ( mat->Get(AI_MATKEY_SHININESS_STRENGTH, f), aiReturn_SUCCESS );
    EXPECT_EQ( f, 0.5 );
    EXPECT_EQ( mat->Get(AI_MATKEY_SHININESS, f), aiReturn_SUCCESS );
    EXPECT_EQ( f, 10.0 );
    EXPECT_EQ( mat->Get(AI_MATKEY_COLOR_AMBIENT, c), aiReturn_SUCCESS );
    EXPECT_EQ( c, aiColor3D(0.125, 0.25, 0.25) );
    EXPECT_EQ( mat->Get(AI_MATKEY_COLOR_EMISSIVE, c), aiReturn_SUCCESS );
    EXPECT_EQ( c, aiColor3D(0.25, 0.125, 0.25) );
    EXPECT_EQ( mat->Get(AI_MATKEY_COLOR_TRANSPARENT, c), aiReturn_SUCCESS );
    EXPECT_EQ( c, aiColor3D(0.75, 0.5, 0.25) );
    EXPECT_EQ( mat->Get(AI_MATKEY_OPACITY, f), aiReturn_SUCCESS );
    EXPECT_EQ( f, 0.5 );
}

TEST_F(utFBXImporterExporter, importUnitScaleFactor) {
    Assimp::Importer importer;
    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/FBX/global_settings.fbx", aiProcess_ValidateDataStructure);

    EXPECT_NE(nullptr, scene);
    EXPECT_NE(nullptr, scene->mMetaData);

    double factor(0.0);
    scene->mMetaData->Get("UnitScaleFactor", factor);
    EXPECT_DOUBLE_EQ(500.0, factor);
}

TEST_F(utFBXImporterExporter, importEmbeddedAsciiTest) {
    // see https://github.com/assimp/assimp/issues/1957
    Assimp::Importer importer;
    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/FBX/embedded_ascii/box.FBX", aiProcess_ValidateDataStructure);
    EXPECT_NE(nullptr, scene);

    EXPECT_EQ(1, scene->mNumMaterials);
    aiMaterial *mat = scene->mMaterials[0];
    ASSERT_NE(nullptr, mat);

    aiString path;
    aiTextureMapMode modes[2];
    EXPECT_EQ(aiReturn_SUCCESS, mat->GetTexture(aiTextureType_DIFFUSE, 0, &path, nullptr, nullptr, nullptr, nullptr, modes));

    ASSERT_EQ(1, scene->mNumTextures);
    ASSERT_TRUE(scene->mTextures[0]->pcData);
    ASSERT_EQ(439176u, scene->mTextures[0]->mWidth) << "FBX ASCII base64 compression splits data by 512Kb, it should be two parts for this texture";
}

TEST_F(utFBXImporterExporter, importEmbeddedFragmentedAsciiTest) {
    // see https://github.com/assimp/assimp/issues/1957
    Assimp::Importer importer;
    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/FBX/embedded_ascii/box_embedded_texture_fragmented.fbx", aiProcess_ValidateDataStructure);
    EXPECT_NE(nullptr, scene);

    EXPECT_EQ(1, scene->mNumMaterials);
    aiMaterial *mat = scene->mMaterials[0];
    ASSERT_NE(nullptr, mat);

    aiString path;
    aiTextureMapMode modes[2];
    ASSERT_EQ(aiReturn_SUCCESS, mat->GetTexture(aiTextureType_DIFFUSE, 0, &path, nullptr, nullptr, nullptr, nullptr, modes));
    ASSERT_STREQ(path.C_Str(), "paper.png");

    ASSERT_EQ(1, scene->mNumTextures);
    ASSERT_TRUE(scene->mTextures[0]->pcData);
    ASSERT_EQ(968029u, scene->mTextures[0]->mWidth) << "FBX ASCII base64 compression splits data by 512Kb, it should be two parts for this texture";
}