public void ParameterTable_Add_Action12() { var pt = new ParameterTable(); pt.Add((int arg8, int arg1, int arg2, int arg3, int arg4, int arg5, int arg6, int arg7, int arg9, int arg10, int arg11, int arg12) => Methods.Action12(arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8, arg9, arg10, arg11, arg12)); var m = typeof(Methods).GetMethod(nameof(Methods.Action12)); Assert.IsTrue(pt.Contains(m.GetParameters()[7])); }