public void TestOperator_Subtraction_i ()
{
var a = new Vector4(12, -4, 14, 18);
var b = new Vector4(15, 11, 7, 27);
var expected = new Vector4(-3, -15, 7, -9);
this.TestSubtraction(a, b, expected);
var c = new Vector4(-423, 342, 7, -800);
this.TestSubtraction(c, Vector4.Zero, c);
}