public void ConstructorTest()
{
Vector3 v1 = new Vector3(1, 2, 3);
Vector3 v2 = new Vector3(-1, -2, -3);
Vector3 v3 = new Vector3(7);
Assert.AreEqual(v1.X, 1);
Assert.AreEqual(v1.Y, 2);
Assert.AreEqual(v1.Z, 3);
Assert.AreEqual(v2.X, -1);
Assert.AreEqual(v2.Y, -2);
Assert.AreEqual(v2.Z, -3);
Assert.AreEqual(v3.X, 7);
Assert.AreEqual(v3.Y, 7);
Assert.AreEqual(v3.Z, 7);
}