# -*- tcl -*-
# fa_operations.test:  tests for the FA operations.
#
# Copyright (c) 2004 by Andreas Kupries <andreas_kupries@users.sourceforge.net>
#
# RCS: @(#) $Id: faop_reverse.test,v 1.4 2006/01/29 05:58:20 andreas_kupries Exp $

# -------------------------------------------------------------------------

test faop-reverse-1.0 {reverse, error} {
    catch {grammar::fa::op::reverse} res
    set res
} {wrong # args: should be "grammar::fa::op::reverse fa"}


test faop-reverse-1.1 {reverse, error} {
    catch {grammar::fa::op::reverse a b} res
    set res
} {wrong # args: should be "grammar::fa::op::reverse fa"}


test faop-reverse-1.2 {reverse, error} {
    catch {grammar::fa::op::reverse a} res
    set res
} {invalid command name "a"}


# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


foreach {n code result} {
    00 x       {grammar::fa {} {x {0 0 {}}}}
    01 x-      {grammar::fa @  {x {0 0 {@ x}}}}
    02 xe      {grammar::fa {} {x {0 0 {{} x}}}}
    03 xy      {grammar::fa {} {x {0 0 {}} y {0 0 {}}}}
    04 xy-     {grammar::fa @  {x {0 0 {}} y {0 0 {@  x}}}}
    05 xye     {grammar::fa {} {x {0 0 {}} y {0 0 {{} x}}}}
    06 xyee    {grammar::fa {} {x {0 0 {{} y}} y {0 0 {{} x}}}}
    07 xyz/ee  {grammar::fa {}    {x {0 0 {}} y {0 0 {{} x}} z {0 0 {{} x}}}}
    08 xyz/-=  {grammar::fa {@ =} {x {0 0 {}} y {0 0 {@  x}} z {0 0 {=  x}}}}
    09 xyz|ee  {grammar::fa {}    {x {0 0 {}} y {0 0 {}} z {0 0 {{} {x y}}}}}
    10 xyz|-=  {grammar::fa {@ =} {x {0 0 {}} y {0 0 {}} z {0 0 {@ x = y}}}}
    11 xyz+eee {grammar::fa {}      {x {0 0 {{} z}} y {0 0 {{} x}} z {0 0 {{} y}}}}
    12 xyz+-=_ {grammar::fa {@ % =} {x {0 0 {%  z}} y {0 0 {@  x}} z {0 0 {=  y}}}}
    13 xyz&eee {grammar::fa {}      {x {0 0 {}} y {0 0 {{} x}} z {0 0 {{} {x y}}}}}
    14 xyz&-=_ {grammar::fa {@ % =} {x {0 0 {}} y {0 0 {@  x}} z {0 0 {=  x %  y}}}}
    15 xyz!ee  {grammar::fa {}      {x {0 0 {}} y {0 0 {{} x}} z {0 0 {{} y}}}}
    16 xyz!-=  {grammar::fa {@ % =} {x {0 0 {}} y {0 0 {@  x}} z {0 0 {=  y}}}}
} {
    set key ${n}.${code}

    test faop-reverse-2.$key {reverse} {
	grammar::fa a
	gen $code
	grammar::fa::op::reverse a
	set res [validate_serial $result a]
	a destroy
	set res
    } ok

    test faop-reverse-3.$key {double reverse is identity} {
	grammar::fa a
	gen $code
	set res [a serialize]
	grammar::fa::op::reverse a
	grammar::fa::op::reverse a
	set res [validate_serial $res a]
	a destroy
	set res
    } ok

    test faop-reverse-4.$key {reverse, as method} {
	grammar::fa a
	gen $code
	a reverse
	set res [validate_serial $result a]
	a destroy
	set res
    } ok

    test faop-reverse-5.$key {double reverse is identity, for method} {
	grammar::fa a
	gen $code
	set res [a serialize]
	a reverse
	a reverse
	set res [validate_serial $res a]
	a destroy
	set res
    } ok
}


# -------------------------------------------------------------------------
::tcltest::cleanupTests
