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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_aiVector3D : public AssimpMathTest {
+protected:
+    virtual void SetUp() {
+        result_c = result_cpp = aiVector3D();
+        temp = random_vec3(); // Generates a random 3D vector != null vector.
+    }
+
+    aiVector3D result_c, result_cpp, temp;
+};
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3AreEqualTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp == result_c,
+        (bool)aiVector3AreEqual(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3AreEqualEpsilonTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp.Equal(result_c, Epsilon),
+        (bool)aiVector3AreEqualEpsilon(&result_cpp, &result_c, Epsilon));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3LessThanTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp < temp,
+        (bool)aiVector3LessThan(&result_c, &temp));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3AddTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp += temp;
+    aiVector3Add(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3SubtractTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp -= temp;
+    aiVector3Subtract(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3ScaleTest) {
+    const float FACTOR = RandNonZero.next();
+    result_c = result_cpp = random_vec3();
+    result_cpp *= FACTOR;
+    aiVector3Scale(&result_c, FACTOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3SymMulTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp = result_cpp.SymMul(temp);
+    aiVector3SymMul(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3DivideByScalarTest) {
+    const float DIVISOR = RandNonZero.next();
+    result_c = result_cpp = random_vec3();
+    result_cpp /= DIVISOR;
+    aiVector3DivideByScalar(&result_c, DIVISOR);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3DivideByVectorTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp = result_cpp / temp;
+    aiVector3DivideByVector(&result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3LengthTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp.Length(), aiVector3Length(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3SquareLengthTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp.SquareLength(), aiVector3SquareLength(&result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3NegateTest) {
+    result_c = result_cpp = random_vec3();
+    aiVector3Negate(&result_c);
+    EXPECT_EQ(-result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3DotProductTest) {
+    result_c = result_cpp = random_vec3();
+    EXPECT_EQ(result_cpp * result_c,
+        aiVector3DotProduct(&result_cpp, &result_c));
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3CrossProductTest) {
+    result_c = result_cpp = random_vec3();
+    result_cpp = result_cpp ^ temp;
+    aiVector3CrossProduct(&result_c, &result_c, &temp);
+    EXPECT_EQ(result_cpp, result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3NormalizeTest) {
+    result_c = result_cpp = random_vec3();
+    aiVector3Normalize(&result_c);
+    EXPECT_EQ(result_cpp.Normalize(), result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3NormalizeSafeTest) {
+    result_c = result_cpp = random_vec3();
+    aiVector3NormalizeSafe(&result_c);
+    EXPECT_EQ(result_cpp.NormalizeSafe(), result_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiVector3RotateByQuaternionTest) {
+    aiVector3D v_c, v_cpp;
+    v_c = v_cpp = random_vec3();
+    const auto q = random_quat();
+    aiVector3RotateByQuaternion(&v_c, &q);
+    EXPECT_EQ(q.Rotate(v_cpp), v_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiTransformVecByMatrix3Test) {
+    const auto m = random_mat3();
+    aiVector3D v_c, v_cpp;
+    v_c = v_cpp = random_vec3();
+    v_cpp *= m;
+    aiTransformVecByMatrix3(&v_c, &m);
+    EXPECT_EQ(v_cpp, v_c);
+}
+
+TEST_F(AssimpAPITest_aiVector3D, aiTransformVecByMatrix4Test) {
+    const auto m = random_mat4();
+    aiVector3D v_c, v_cpp;
+    v_c = v_cpp = random_vec3();
+    v_cpp *= m;
+    aiTransformVecByMatrix4(&v_c, &m);
+    EXPECT_EQ(v_cpp, v_c);
+}