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diff --git a/src/mesh/assimp-master/test/unit/utVector3.cpp b/src/mesh/assimp-master/test/unit/utVector3.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/vector3.h>
+
+using namespace ::Assimp;
+
+class utVector3 : public ::testing::Test {
+    // empty
+};
+
+TEST_F(utVector3, CreationTest) {
+    aiVector3D v0;
+    aiVector3D v1(1.0f, 2.0f, 3.0f);
+    EXPECT_FLOAT_EQ(1.0f, v1[0]);
+    EXPECT_FLOAT_EQ(2.0f, v1[1]);
+    EXPECT_FLOAT_EQ(3.0f, v1[2]);
+    aiVector3D v2(1);
+    EXPECT_FLOAT_EQ(1.0f, v2[0]);
+    EXPECT_FLOAT_EQ(1.0f, v2[1]);
+    EXPECT_FLOAT_EQ(1.0f, v2[2]);
+    aiVector3D v3(v1);
+    EXPECT_FLOAT_EQ(v1[0], v3[0]);
+    EXPECT_FLOAT_EQ(v1[1], v3[1]);
+    EXPECT_FLOAT_EQ(v1[2], v3[2]);
+}
+
+TEST_F(utVector3, BracketOpTest) {
+    aiVector3D v(1.0f, 2.0f, 3.0f);
+    EXPECT_FLOAT_EQ(1.0f, v[0]);
+    EXPECT_FLOAT_EQ(2.0f, v[1]);
+    EXPECT_FLOAT_EQ(3.0f, v[2]);
+}