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diff --git a/src/mesh/assimp-master/test/unit/Common/utXmlParser.cpp b/src/mesh/assimp-master/test/unit/Common/utXmlParser.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/XmlParser.h>
+#include <assimp/DefaultIOStream.h>
+#include <assimp/DefaultIOSystem.h>
+
+using namespace Assimp;
+
+class utXmlParser : public ::testing::Test {
+public:
+    utXmlParser() :
+            Test(),
+            mIoSystem() {
+        // empty
+    }
+
+protected:
+    DefaultIOSystem mIoSystem;
+};
+
+TEST_F(utXmlParser, parse_xml_test) {
+    XmlParser parser;
+    std::string filename = ASSIMP_TEST_MODELS_DIR "/X3D/ComputerKeyboard.x3d";
+    std::unique_ptr<IOStream> stream(mIoSystem.Open(filename.c_str(), "rb"));
+    EXPECT_NE(stream.get(), nullptr);
+    bool result = parser.parse(stream.get());
+    EXPECT_TRUE(result);
+}
+
+TEST_F(utXmlParser, parse_xml_and_traverse_test) {
+    XmlParser parser;
+    std::string filename = ASSIMP_TEST_MODELS_DIR "/X3D/ComputerKeyboard.x3d";
+    std::unique_ptr<IOStream> stream(mIoSystem.Open(filename.c_str(), "rb"));
+    EXPECT_NE(stream.get(), nullptr);
+    bool result = parser.parse(stream.get());
+    EXPECT_TRUE(result);
+    XmlNode root = parser.getRootNode();
+
+    XmlNodeIterator nodeIt(root, XmlNodeIterator::PreOrderMode);
+    const size_t numNodes = nodeIt.size();
+    bool empty = nodeIt.isEmpty();
+    EXPECT_FALSE(empty);
+    EXPECT_NE(numNodes, 0U);
+    XmlNode node;
+    while (nodeIt.getNext(node)) {
+        const std::string nodeName = node.name();
+        EXPECT_FALSE(nodeName.empty());
+    }
+}