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diff --git a/libs/assimp/test/unit/AssimpAPITest_aiVector2D.cpp b/libs/assimp/test/unit/AssimpAPITest_aiVector2D.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 "MathTest.h"
+
+using namespace Assimp;
+
+class AssimpAPITest_aiVector2D : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiVector2D();
+        temp = random_vec2(); // Generates a random 2D vector != null vector.
+    }
+
+    aiVector2D result_c, result_cpp, temp;
+};
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2AreEqualTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiVector2AreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2AreEqualEpsilonTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiVector2AreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2AddTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp += temp;
+    aiVector2Add(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2SubtractTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp -= temp;
+    aiVector2Subtract(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2ScaleTest) {
+    const float FACTOR = RandNonZero.next();
+    result_c = result_cpp = random_vec2();
+    result_cpp *= FACTOR;
+    aiVector2Scale(&result_c, FACTOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2SymMulTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp = result_cpp.SymMul(temp);
+    aiVector2SymMul(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2DivideByScalarTest) {
+    const float DIVISOR = RandNonZero.next();
+    result_c = result_cpp = random_vec2();
+    result_cpp /= DIVISOR;
+    aiVector2DivideByScalar(&result_c, DIVISOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2DivideByVectorTest) {
+    result_c = result_cpp = random_vec2();
+    result_cpp = result_cpp / temp;
+    aiVector2DivideByVector(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2LengthTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp.Length(), aiVector2Length(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2SquareLengthTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp.SquareLength(), aiVector2SquareLength(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2NegateTest) {
+    result_c = result_cpp = random_vec2();
+    aiVector2Negate(&result_c);
+    EXPECT_EQ(-result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2DotProductTest) {
+    result_c = result_cpp = random_vec2();
+    EXPECT_EQ(result_cpp * result_c,
+        aiVector2DotProduct(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector2D, aiVector2NormalizeTest) {
+    result_c = result_cpp = random_vec2();
+    aiVector2Normalize(&result_c);
+    EXPECT_EQ(result_cpp.Normalize(), result_c);
+}