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diff --git a/src/mesh/assimp-master/test/unit/utSceneCombiner.cpp b/src/mesh/assimp-master/test/unit/utSceneCombiner.cpp
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+++ b/src/mesh/assimp-master/test/unit/utSceneCombiner.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 "UnitTestPCH.h"
+#include <assimp/SceneCombiner.h>
+#include <assimp/mesh.h>
+#include <memory>
+
+using namespace ::Assimp;
+
+class utSceneCombiner : public ::testing::Test {
+    // empty
+};
+
+TEST_F(utSceneCombiner, MergeMeshes_ValidNames_Test) {
+    std::vector<aiMesh *> merge_list;
+    aiMesh *mesh1 = new aiMesh;
+    mesh1->mName.Set("mesh_1");
+    merge_list.push_back(mesh1);
+
+    aiMesh *mesh2 = new aiMesh;
+    mesh2->mName.Set("mesh_2");
+    merge_list.push_back(mesh2);
+
+    aiMesh *mesh3 = new aiMesh;
+    mesh3->mName.Set("mesh_3");
+    merge_list.push_back(mesh3);
+
+    std::unique_ptr<aiMesh> out;
+    aiMesh *ptr = nullptr;
+    SceneCombiner::MergeMeshes(&ptr, 0, merge_list.begin(), merge_list.end());
+    out.reset(ptr);
+    std::string outName = out->mName.C_Str();
+    EXPECT_EQ("mesh_1.mesh_2.mesh_3", outName);
+}
+
+TEST_F(utSceneCombiner, CopySceneWithNullptr_AI_NO_EXCEPTion) {
+    EXPECT_NO_THROW(SceneCombiner::CopyScene(nullptr, nullptr));
+    EXPECT_NO_THROW(SceneCombiner::CopySceneFlat(nullptr, nullptr));
+}