public void TestInitializeAndReturnMagnitude()
{
double magnitude;
UnitQuaternion test = new UnitQuaternion(2.0, 4.0, 7.0, 10.0, out magnitude);
Assert.AreEqual(2.0 / 13.0, test.W, Constants.Epsilon15);
Assert.AreEqual(4.0 / 13.0, test.X, Constants.Epsilon15);
Assert.AreEqual(7.0 / 13.0, test.Y, Constants.Epsilon15);
Assert.AreEqual(10.0 / 13.0, test.Z, Constants.Epsilon15);
Assert.AreEqual(13.0, magnitude, Constants.Epsilon15);
}