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diff --git a/src/mesh/assimp-master/test/unit/utglTFImportExport.cpp b/src/mesh/assimp-master/test/unit/utglTFImportExport.cpp
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+++ b/src/mesh/assimp-master/test/unit/utglTFImportExport.cpp
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+/*
+---------------------------------------------------------------------------
+Open Asset Import Library (assimp)
+---------------------------------------------------------------------------
+
+Copyright (c) 2006-2022, assimp team
+
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms,
+with or without modification, are permitted provided that the following
+conditions are met:
+
+* Redistributions of source code must retain the above
+copyright notice, this list of conditions and the
+following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+copyright notice, this list of conditions and the
+following disclaimer in the documentation and/or other
+materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+contributors may be used to endorse or promote products
+derived from this software without specific prior
+written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+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,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+---------------------------------------------------------------------------
+*/
+#include "AbstractImportExportBase.h"
+#include "UnitTestPCH.h"
+
+#include <assimp/postprocess.h>
+#include <assimp/Importer.hpp>
+
+#include <assimp/commonMetaData.h>
+#include <assimp/scene.h>
+
+using namespace Assimp;
+
+class utglTFImportExport : public AbstractImportExportBase {
+public:
+    bool importerTest() override {
+        Assimp::Importer importer;
+        const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF/TwoBoxes/TwoBoxes.gltf", aiProcess_ValidateDataStructure);
+        return nullptr != scene;
+    }
+};
+
+TEST_F(utglTFImportExport, importglTFFromFileTest) {
+    EXPECT_TRUE(importerTest());
+}
+
+TEST_F(utglTFImportExport, incorrect_vertex_arrays) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF/IncorrectVertexArrays/Cube_v1.gltf",
+            aiProcess_ValidateDataStructure);
+    EXPECT_NE(nullptr, scene);
+    EXPECT_EQ(scene->mMeshes[0]->mNumVertices, 36u);
+    EXPECT_EQ(scene->mMeshes[0]->mNumFaces, 12u);
+    EXPECT_EQ(scene->mMeshes[1]->mNumVertices, 35u);
+    EXPECT_EQ(scene->mMeshes[1]->mNumFaces, 11u);
+    EXPECT_EQ(scene->mMeshes[2]->mNumVertices, 36u);
+    EXPECT_EQ(scene->mMeshes[2]->mNumFaces, 18u);
+    EXPECT_EQ(scene->mMeshes[3]->mNumVertices, 35u);
+    EXPECT_EQ(scene->mMeshes[3]->mNumFaces, 17u);
+    EXPECT_EQ(scene->mMeshes[4]->mNumVertices, 36u);
+    EXPECT_EQ(scene->mMeshes[4]->mNumFaces, 12u);
+    EXPECT_EQ(scene->mMeshes[5]->mNumVertices, 35u);
+    EXPECT_EQ(scene->mMeshes[5]->mNumFaces, 11u);
+    EXPECT_EQ(scene->mMeshes[6]->mNumVertices, 36u);
+    EXPECT_EQ(scene->mMeshes[6]->mNumFaces, 18u);
+    EXPECT_EQ(scene->mMeshes[7]->mNumVertices, 35u);
+    EXPECT_EQ(scene->mMeshes[7]->mNumFaces, 17u);
+}
+
+TEST_F(utglTFImportExport, sceneMetadata) {
+    Assimp::Importer importer;
+    const aiScene *scene = importer.ReadFile(ASSIMP_TEST_MODELS_DIR "/glTF/TwoBoxes/TwoBoxes.gltf", aiProcess_ValidateDataStructure);
+    ASSERT_TRUE(scene);
+    ASSERT_TRUE(scene->mMetaData);
+    {
+        ASSERT_TRUE(scene->mMetaData->HasKey(AI_METADATA_SOURCE_FORMAT));
+        aiString format;
+        ASSERT_TRUE(scene->mMetaData->Get(AI_METADATA_SOURCE_FORMAT, format));
+        ASSERT_EQ(strcmp(format.C_Str(), "glTF Importer"), 0);
+    }
+    {
+        ASSERT_TRUE(scene->mMetaData->HasKey(AI_METADATA_SOURCE_FORMAT_VERSION));
+        aiString version;
+        ASSERT_TRUE(scene->mMetaData->Get(AI_METADATA_SOURCE_FORMAT_VERSION, version));
+        ASSERT_EQ(strcmp(version.C_Str(), "1.0"), 0);
+    }
+    {
+        ASSERT_TRUE(scene->mMetaData->HasKey(AI_METADATA_SOURCE_GENERATOR));
+        aiString generator;
+        ASSERT_TRUE(scene->mMetaData->Get(AI_METADATA_SOURCE_GENERATOR, generator));
+        ASSERT_EQ(strncmp(generator.C_Str(), "collada2gltf", 12), 0);
+    }
+}