# -*- tcl -*-
# fa_operations.test:  tests for the FA operations.
#
# Copyright (c) 2004-2007 by Andreas Kupries <andreas_kupries@users.sourceforge.net>
#
# RCS: @(#) $Id: faop_optional.test,v 1.4 2007/04/12 03:43:15 andreas_kupries Exp $

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

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


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


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


test faop-optional-${setimpl}-1.3 {optional, error} {
    grammar::fa a
    catch {grammar::fa::op::optional a} res
    a destroy
    set res
} {Unable to make a FA without start/final states optional}


test faop-optional-${setimpl}-1.4 {optional, error} {
    grammar::fa a
    a state add x
    a start add x
    catch {grammar::fa::op::optional a} res
    a destroy
    set res
} {Unable to make a FA without start/final states optional}


test faop-optional-${setimpl}-1.5 {optional, error} {
    grammar::fa a
    a state add x
    a final add x
    catch {grammar::fa::op::optional a} res
    a destroy
    set res
} {Unable to make a FA without start/final states optional}


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


foreach {n code st fin result} {
    00 datom x y
    {grammar::fa @ {x {0 0 {@ y}} y {0 0 {{} f.0}} s.0 {1 0 {{} {x f.0}}} f.0 {0 1 {}}}}

    01 dalt  u z
    {grammar::fa {@ =} {u {0 0 {{} {v w}}} v {0 0 {@ x}} w {0 0 {= y}} x {0 0 {{} z}} y {0 0 {{} z}} z {0 0 {{} f.0}} s.0 {1 0 {{} {u f.0}}} f.0 {0 1 {}}}}

    02 daltb  u z
    {grammar::fa {@ =} {u {0 0 {{} {v w}}} v {0 0 {@ x}} w {0 0 {= y}} x {0 0 {{} z}} y {0 0 {{} z}} z {0 0 {{} {u f.0}}} s.0 {1 0 {{} {u f.0}}} f.0 {0 1 {}}}}

    03 dopt  u x
    {grammar::fa @ {u {0 0 {{} {v x}}} v {0 0 {@ w}} w {0 0 {{} x}} x {0 0 {{} f.0}} s.0 {1 0 {{} {u f.0}}} f.0 {0 1 {}}}}

    04 drep  u x
    {grammar::fa @ {u {0 0 {{} {v x}}} v {0 0 {@ w}} w {0 0 {{} x}} x {0 0 {{} {u f.0}}} s.0 {1 0 {{} {u f.0}}} f.0 {0 1 {}}}}
} {
    set key ${n}.${code}

    test faop-optional-${setimpl}-2.$key {optional} {
	grammar::fa a
	gen $code
	a start add $st
	a final add $fin
	grammar::fa::op::optional a
	set res [validate_serial $result a]
	a destroy
	set res
    } ok

    test faop-optional-${setimpl}-3.$key {optional, as method} {
	grammar::fa a
	gen $code
	a start add $st
	a final add $fin
	a optional
	set res [validate_serial $result a]
	a destroy
	set res
    } ok
}


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