assimp/test/unit/utImporter.cpp

/*
---------------------------------------------------------------------------
Open Asset Import Library (assimp)
---------------------------------------------------------------------------

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All rights reserved.

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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 "../../include/assimp/postprocess.h"
#include "../../include/assimp/scene.h"
#include "TestIOSystem.h"
#include <assimp/BaseImporter.h>
#include <assimp/DefaultIOSystem.h>
#include <assimp/Importer.hpp>

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

class ImporterTest : public ::testing::Test {
protected:
    void SetUp() override {
        pImp = new Importer();
    }

    void TearDown() override {
        delete pImp;
    }

    Importer *pImp;
};

#define InputData_BLOCK_SIZE 1310

// clang-format off
// test data for Importer::ReadFileFromMemory() - ./test/3DS/CameraRollAnim.3ds
static unsigned char InputData_abRawBlock[1310] = {
     77, 77, 30,  5,  0,  0,  2,  0, 10,  0,  0,  0,  3,  0,  0,  0, 61, 61, 91,  3,  0,  0,
     62, 61, 10,  0,  0,  0,  3,  0,  0,  0,  0,  1, 10,  0,  0,  0,  0,  0,128, 63,  0, 64,
    254,  2,  0,  0, 66,111,120, 48, 49,  0,  0, 65,242,  2,  0,  0, 16, 65, 64,  1,  0,  0,
     26,  0,102, 74,198,193,102, 74,198,193,  0,  0,  0,  0,205,121, 55, 66,102, 74,198,193,
      0,  0,  0,  0,102, 74,198,193,138,157,184, 65,  0,  0,  0,  0,205,121, 55, 66,138,157,
    184, 65,  0,  0,  0,  0,102, 74,198,193,102, 74,198,193, 90,252, 26, 66,205,121, 55, 66,
    102, 74,198,193, 90,252, 26, 66,102, 74,198,193,138,157,184, 65, 90,252, 26, 66,205,121,
     55, 66,138,157,184, 65, 90,252, 26, 66,102, 74,198,193,102, 74,198,193,  0,  0,  0,  0,
    205,121, 55, 66,102, 74,198,193,  0,  0,  0,  0,205,121, 55, 66,102, 74,198,193, 90,252,
    26,  66,205,121, 55, 66,102, 74,198,193, 90,252, 26, 66,102, 74,198,193,102, 74,198,193,
    90, 252, 26, 66,102, 74,198,193,102, 74,198,193,  0,  0,  0,  0,205,121, 55, 66,138,157,
    184, 65,  0,  0,  0,  0,205,121, 55, 66,102, 74,198,193, 90,252, 26, 66,205,121, 55, 66,
    138,157,184, 65,  0,  0,  0,  0,102, 74,198,193,138,157,184, 65,  0,  0,  0,  0,102, 74,
    198,193,138,157,184, 65, 90,252, 26, 66,102, 74,198,193,138,157,184, 65, 90,252, 26, 66,
    205,121, 55, 66,138,157,184, 65, 90,252, 26, 66,205,121, 55, 66,138,157,184, 65,  0,  0,
      0,  0,102, 74,198,193,138,157,184, 65,  0,  0,  0,  0,102, 74,198,193,102, 74,198,193,
     90,252, 26, 66,102, 74,198,193,102, 74,198,193, 90,252, 26, 66,102, 74,198,193,138,157,
    184, 65,  0,  0,  0,  0, 64, 65,216,  0,  0,  0, 26,  0,  0,  0,128, 63,  0,  0,  0,  0,
      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,128, 63,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,
    128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,
      0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    128, 63,  0,  0,  0,  0,  0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,
      0,  0,  0,  0,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,128, 63,  0,  0,
      0,  0,  0,  0,  0,  0,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,128, 63,
      0,  0,  0,  0,  0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  0,  0,
      0,  0,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
      0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,
      0,  0, 96, 65, 54,  0,  0,  0,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
      0,  0,  0,  0,128, 63,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,128, 63,
     53,169, 40, 65,176,205, 90,191,  0,  0,  0,  0, 32, 65,158,  0,  0,  0, 12,  0,  0,  0,
      2,  0,  3,  0,  6,  0,  3,  0,  1,  0,  0,  0,  6,  0,  4,  0,  5,  0,  7,  0,  6,  0,
      7,  0,  6,  0,  4,  0,  6,  0,  8,  0,  9,  0, 10,  0,  6,  0, 11,  0, 12,  0, 13,  0,
      6,  0,  1,  0, 14,  0,  7,  0,  6,  0,  7,  0, 15,  0,  1,  0,  6,  0, 16,  0, 17,  0,
     18,  0,  6,  0, 19,  0, 20,  0, 21,  0,  6,  0, 22,  0,  0,  0, 23,  0,  6,  0, 24,  0,
      6,  0, 25,  0,  6,  0, 80, 65, 54,  0,  0,  0,  2,  0,  0,  0,  2,  0,  0,  0,  4,  0,
      0,  0,  4,  0,  0,  0,  8,  0,  0,  0,  8,  0,  0,  0, 16,  0,  0,  0, 16,  0,  0,  0,
     32,  0,  0,  0, 32,  0,  0,  0, 64,  0,  0,  0, 64,  0,  0,  0,  0, 64, 67,  0,  0,  0,
     67, 97,109,101,114, 97, 48, 49,  0,  0, 71, 52,  0,  0,  0,189, 19, 25,195,136,104, 81,
     64,147, 56,182, 65, 96,233, 20,194, 67,196, 97,190,147, 56,182, 65,  0,  0,  0,  0, 85,
     85, 85, 66, 32, 71, 14,  0,  0,  0,  0,  0,  0,  0,  0,  0,122, 68,  0,176,179,  1,  0,
      0, 10,176, 21,  0,  0,  0,  5,  0, 77, 65, 88, 83, 67, 69, 78, 69,  0, 44,  1,  0,  0,
      8,176, 14,  0,  0,  0,  0,  0,  0,  0, 44,  1,  0,  0,  9,176, 10,  0,  0,  0,128,  2,
      0,  0,  2,176,168,  0,  0,  0, 48,176,  8,  0,  0,  0,  0,  0, 16,176, 18,  0,  0,  0,
     66,111,120, 48, 49,  0,  0, 64,  0,  0,255,255, 19,176, 18,  0,  0,  0,  0,  0,  0,128,
      0,  0,  0,128,  0,  0,  0,128, 32,176, 38,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
      0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0, 53,169, 40, 65,176,205, 90,191,  0,  0,
      0,  0, 33,176, 42,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,
      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     34,176, 38,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0,
      0,  0,  0,  0,  0,  0,128, 63,  0,  0,128, 63,  0,  0,128, 63,  3,176,143,  0,  0,  0,
     48,176,  8,  0,  0,  0,  1,  0, 16,176, 21,  0,  0,  0, 67, 97,109,101,114, 97, 48, 49,
      0,  0, 64,  0,  0,255,255, 32,176, 38,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
      0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,189, 19, 25,195,136,104, 81, 64,147, 56,182,
     65, 35,176, 30,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,
      0,  0,  0,  0,  0,  0,  0, 52, 66, 36,176, 40,  0,  0,  0,  0,  0,  0,  0,  0,  0,120,
      0,  0,  0,  2,  0,  0,  0,  0,  0,  0,  0,  0,  0,120, 13, 90,189,120,  0,  0,  0,  0,
      0, 99,156,154,194,  4,176, 73,  0,  0,  0, 48,176,  8,  0,  0,  0,  2,  0, 16,176, 21,
      0,  0,  0, 67, 97,109,101,114, 97, 48, 49,  0,  0, 64,  0,  0,255,255, 32,176, 38,  0,
      0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  1,  0,  0,  0,  0,  0,  0,  0,  0,  0,
     96,233, 20,194, 67,196, 97,190,147, 56,182, 65 };
// clang-format on
#define AIUT_DEF_ERROR_TEXT "sorry, this is a test"

static const aiImporterDesc desc = {
    "UNIT TEST - IMPORTER",
    "",
    "",
    "",
    0,
    0,
    0,
    0,
    0,
    "apple mac linux windows"
};

class TestPlugin : public BaseImporter {
public:
    virtual bool CanRead(
            const std::string &pFile, IOSystem * /*pIOHandler*/, bool /*test*/) const {
        std::string::size_type pos = pFile.find_last_of('.');
        // no file extension - can't read
        if (pos == std::string::npos)
            return false;
        std::string extension = pFile.substr(pos);

        // todo ... make case-insensitive
        return (extension == ".apple" || extension == ".mac" ||
                extension == ".linux" || extension == ".windows");
    }

    virtual const aiImporterDesc *GetInfo() const {
        return &desc;
    }

    virtual void InternReadFile(
            const std::string & /*pFile*/, aiScene * /*pScene*/, IOSystem * /*pIOHandler*/) {
        throw DeadlyImportError(AIUT_DEF_ERROR_TEXT);
    }
};

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testMemoryRead) {
    const aiScene *sc = pImp->ReadFileFromMemory(InputData_abRawBlock, InputData_BLOCK_SIZE,
            aiProcessPreset_TargetRealtime_Quality, "3ds");

    ASSERT_TRUE(sc != nullptr);
    EXPECT_EQ(aiString("<3DSRoot>"), sc->mRootNode->mName);
    EXPECT_EQ(1U, sc->mNumMeshes);
    EXPECT_EQ(24U, sc->mMeshes[0]->mNumVertices);
    EXPECT_EQ(12U, sc->mMeshes[0]->mNumFaces);
}

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testIntProperty) {
    bool b = pImp->SetPropertyInteger("quakquak", 1503);
    EXPECT_FALSE(b);
    EXPECT_EQ(1503, pImp->GetPropertyInteger("quakquak", 0));
    EXPECT_EQ(314159, pImp->GetPropertyInteger("not_there", 314159));

    b = pImp->SetPropertyInteger("quakquak", 1504);
    EXPECT_TRUE(b);
}

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testFloatProperty) {
    bool b = pImp->SetPropertyFloat("quakquak", 1503.f);
    EXPECT_TRUE(!b);
    EXPECT_EQ(1503.f, pImp->GetPropertyFloat("quakquak", 0.f));
    EXPECT_EQ(314159.f, pImp->GetPropertyFloat("not_there", 314159.f));
}

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testStringProperty) {
    bool b = pImp->SetPropertyString("quakquak", "test");
    EXPECT_TRUE(!b);
    EXPECT_EQ("test", pImp->GetPropertyString("quakquak", "weghwekg"));
    EXPECT_EQ("ILoveYou", pImp->GetPropertyString("not_there", "ILoveYou"));
}

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testPluginInterface) {
    pImp->RegisterLoader(new TestPlugin());
    EXPECT_TRUE(pImp->IsExtensionSupported(".apple"));
    EXPECT_TRUE(pImp->IsExtensionSupported(".mac"));
    EXPECT_TRUE(pImp->IsExtensionSupported("*.linux"));
    EXPECT_TRUE(pImp->IsExtensionSupported("windows"));
    EXPECT_TRUE(pImp->IsExtensionSupported(".x")); /* x and 3ds must be available in this Assimp build, of course! */
    EXPECT_TRUE(pImp->IsExtensionSupported(".3ds"));
    EXPECT_FALSE(pImp->IsExtensionSupported("."));

    TestPlugin *p = (TestPlugin *)pImp->GetImporter(".windows");
    ASSERT_TRUE(nullptr != p);

    try {
        p->InternReadFile("", nullptr, nullptr);
    } catch (const DeadlyImportError &dead) {
        EXPECT_TRUE(!strcmp(dead.what(), AIUT_DEF_ERROR_TEXT));

        // unregister the plugin and delete it
        pImp->UnregisterLoader(p);
        delete p;

        return;
    }
    EXPECT_TRUE(false); // control shouldn't reach this point
}

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testExtensionCheck) {
    std::string s;
    pImp->GetExtensionList(s);

    // TODO
}

// ------------------------------------------------------------------------------------------------
TEST_F(ImporterTest, testMultipleReads) {
    // see http://sourceforge.net/projects/assimp/forums/forum/817654/topic/3591099
    // Check whether reading and post-processing multiple times using
    // the same objects is *generally* fine. This test doesn't target
    // importers. Testing post-processing stability is the main point.

    const unsigned int flags =
            aiProcess_Triangulate |
            aiProcess_JoinIdenticalVertices |
            aiProcess_GenSmoothNormals |
            aiProcess_ValidateDataStructure |
            aiProcess_RemoveRedundantMaterials |
            aiProcess_SortByPType |
            aiProcess_FindDegenerates |
            aiProcess_FindInvalidData |
            aiProcess_GenUVCoords |
            aiProcess_OptimizeMeshes |
            aiProcess_OptimizeGraph;

    EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/test.x", flags));
    //EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/dwarf.x",flags)); # is in nonbsd
    EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/Testwuson.X", flags));
    EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/anim_test.x", flags));
    //EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/dwarf.x",flags)); # is in nonbsd

    EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/anim_test.x", flags));
    EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/BCN_Epileptic.X", flags));
    //EXPECT_TRUE(pImp->ReadFile(ASSIMP_TEST_MODELS_DIR "/X/dwarf.x",flags)); # is in nonbsd
}

TEST_F(ImporterTest, SearchFileHeaderForTokenTest) {
    //DefaultIOSystem ioSystem;
    //    BaseImporter::SearchFileHeaderForToken( &ioSystem, assetPath, Token, 2 )
}

namespace {
// Description for an importer which fails in specific ways.
aiImporterDesc s_failingImporterDescription = {
    "Failing importer",
    "assimp team",
    "",
    "",
    0,
    1,
    0,
    1,
    0,
    "fail"
};

// This importer fails in specific ways.
class FailingImporter : public Assimp::BaseImporter {
public:
    virtual ~FailingImporter() = default;
    virtual bool CanRead(const std::string &, Assimp::IOSystem *, bool) const override {
        return true;
    }

protected:
    const aiImporterDesc *GetInfo() const override {
        return &s_failingImporterDescription;
    }

    void InternReadFile(const std::string &pFile, aiScene *, Assimp::IOSystem *) override {
        if (pFile == "deadlyImportError.fail") {
            throw DeadlyImportError("Deadly import error test. Details: ", 42, " More Details: ", "Failure");
        } else if (pFile == "stdException.fail") {
            throw std::runtime_error("std::exception test");
        } else if (pFile == "unexpectedException.fail") {
            throw 5;
        }
    }
};
} // namespace

TEST_F(ImporterTest, deadlyImportError) {
    pImp->RegisterLoader(new FailingImporter);
    pImp->SetIOHandler(new TestIOSystem);
    const aiScene *scene = pImp->ReadFile("deadlyImportError.fail", 0);
    EXPECT_EQ(scene, nullptr);
    EXPECT_STREQ(pImp->GetErrorString(), "Deadly import error test. Details: 42 More Details: Failure");
    EXPECT_NE(pImp->GetException(), std::exception_ptr());
}

TEST_F(ImporterTest, stdException) {
    pImp->RegisterLoader(new FailingImporter);
    pImp->SetIOHandler(new TestIOSystem);
    const aiScene *scene = pImp->ReadFile("stdException.fail", 0);
    EXPECT_EQ(scene, nullptr);
    EXPECT_STREQ(pImp->GetErrorString(), "std::exception test");
    EXPECT_NE(pImp->GetException(), std::exception_ptr());
    try {
        std::rethrow_exception(pImp->GetException());
    } catch (const std::exception &e) {
        EXPECT_STREQ(e.what(), "std::exception test");
    } catch (...) {
        EXPECT_TRUE(false);
    }
}

TEST_F(ImporterTest, unexpectedException) {
    pImp->RegisterLoader(new FailingImporter);
    pImp->SetIOHandler(new TestIOSystem);
    const aiScene *scene = pImp->ReadFile("unexpectedException.fail", 0);

    EXPECT_EQ(scene, nullptr);
    EXPECT_STREQ(pImp->GetErrorString(), "Unknown exception");
    ASSERT_NE(pImp->GetException(), std::exception_ptr());
    try {
        std::rethrow_exception(pImp->GetException());
    } catch (int x) {
        EXPECT_EQ(x, 5);
    } catch (...) {
        EXPECT_TRUE(false);
    }
}

// ------------------------------------------------------------------------------------------------

struct ExtensionTestCase {
    std::string testName;
    std::string filename;
    std::string getExtensionResult;
    std::string hasExtension;
    bool hasExtensionResult;
};

using ExtensionTest = ::testing::TestWithParam<ExtensionTestCase>;

TEST_P(ExtensionTest, testGetAndHasExtension) {
    const ExtensionTestCase& testCase = GetParam();
    EXPECT_EQ(testCase.getExtensionResult, BaseImporter::GetExtension(testCase.filename));
    EXPECT_EQ(testCase.hasExtensionResult, BaseImporter::HasExtension(testCase.filename, {testCase.hasExtension}));
}

INSTANTIATE_TEST_SUITE_P(
    ExtensionTests, ExtensionTest,
    ::testing::ValuesIn<ExtensionTestCase>({
        {"NoExtension", "name", "", "glb", false},
        {"NoExtensionAndEmptyVersion", "name#", "", "glb", false},
        {"WithExtensionAndEmptyVersion", "name.glb#", "glb#", "glb", false},
        {"WithExtensionAndVersion", "name.glb#1234", "glb", "glb", true},
        {"WithExtensionAndHashInStem", "name#1234.glb", "glb", "glb", true},
        {"WithExtensionAndInvalidVersion", "name.glb#_", "glb#_", "glb", false},
        {"WithExtensionAndDotAndHashInStem", "name.glb#.abc", "abc", "glb", false},
        {"WithTwoExtensions", "name.abc.def", "def", "abc.def", true},
    }),
    [](const ::testing::TestParamInfo<ExtensionTest::ParamType>& info) {
        return info.param.testName;
    });