public void TestOperator_Subtraction_i ()
{
var a = new Vector3(12, -4, 14);
var b = new Vector3(15, 11, 7);
var expected = new Vector3(-3, -15, 7);
this.TestSubtraction(a, b, expected);
var c = new Vector3(-423, 342, 7);
this.TestSubtraction(c, Vector3.Zero, c);
}