# Commands covered:  none

 #

 # This file contains a collection of tests for Tcl_LinkVar and related

 # library procedures.  Sourcing this file into Tcl runs the tests and

 # generates output for errors.  No output means no errors were found.

 #

 # Copyright (c) 1993 The Regents of the University of California.

 # Copyright (c) 1994 Sun Microsystems, Inc.

 # Copyright (c) 1998-1999 by Scriptics Corporation.

 #

 # See the file "license.terms" for information on usage and redistribution

 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.

 #

 # RCS: @(#) $Id: link.test,v 1.7 2002/06/22 04:19:47 dgp Exp $

 if {[lsearch [namespace children] ::tcltest] == -1} {

     package require tcltest 2

     namespace import -force ::tcltest::*

 }

 ::tcltest::testConstraint testlink \

         [expr {[info commands testlink] != {}}]

 foreach i {int real bool string} {

     catch {unset $i}

 }

 test link-1.1 {reading C variables from Tcl} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 12341234

     testlink create 1 1 1 1 1

     list $int $real $bool $string $wide

 } {43 1.23 1 NULL 12341234}

 test link-1.2 {reading C variables from Tcl} {testlink} {

     testlink delete

     testlink create 1 1 1 1 1

     testlink set -3 2 0 "A long string with spaces"  43214321

     list $int $real $bool $string $wide $int $real $bool $string $wide

 } {-3 2.0 0 {A long string with spaces} 43214321 -3 2.0 0 {A long string with spaces} 43214321}

 test link-2.1 {writing C variables from Tcl} {testlink} {

     testlink delete

     testlink set 43 1.21 4 - 56785678

     testlink create 1 1 1 1 1

     set int "00721"

     set real -10.5

     set bool true

     set string abcdef

     set wide 135135

     concat [testlink get] $int $real $bool $string $wide

 } {465 -10.5 1 abcdef 135135 00721 -10.5 true abcdef 135135}

 test link-2.2 {writing bad values into variables} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 56785678

     testlink create 1 1 1 1 1

     list [catch {set int 09a} msg] $msg $int

 } {1 {can't set "int": variable must have integer value} 43}

 test link-2.3 {writing bad values into variables} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 56785678

     testlink create 1 1 1 1 1

     list [catch {set real 1.x3} msg] $msg $real

 } {1 {can't set "real": variable must have real value} 1.23}

 test link-2.4 {writing bad values into variables} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 56785678

     testlink create 1 1 1 1 1

     list [catch {set bool gorp} msg] $msg $bool

 } {1 {can't set "bool": variable must have boolean value} 1}

 test link-2.5 {writing bad values into variables} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 56785678

     testlink create 1 1 1 1 1

     list [catch {set wide gorp} msg] $msg $bool

 } {1 {can't set "wide": variable must have integer value} 1}

 test link-3.1 {read-only variables} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 56785678

     testlink create 0 1 1 0 0

     list [catch {set int 4} msg] $msg $int \

 	[catch {set real 10.6} msg] $msg $real \

 	[catch {set bool no} msg] $msg $bool \

 	[catch {set string "new value"} msg] $msg $string \

 	[catch {set wide 12341234} msg] $msg $wide

 } {1 {can't set "int": linked variable is read-only} 43 0 10.6 10.6 0 no no 1 {can't set "string": linked variable is read-only} NULL 1 {can't set "wide": linked variable is read-only} 56785678}

 test link-3.2 {read-only variables} {testlink} {

     testlink delete

     testlink set 43 1.23 4 - 56785678

     testlink create 1 0 0 1 1

     list [catch {set int 4} msg] $msg $int \

 	[catch {set real 10.6} msg] $msg $real \

 	[catch {set bool no} msg] $msg $bool \

 	[catch {set string "new value"} msg] $msg $string\

 	[catch {set wide 12341234} msg] $msg $wide

 } {0 4 4 1 {can't set "real": linked variable is read-only} 1.23 1 {can't set "bool": linked variable is read-only} 1 0 {new value} {new value} 0 12341234 12341234}

 test link-4.1 {unsetting linked variables} {testlink} {

     testlink delete

     testlink set -6 -2.5 0 stringValue 13579

     testlink create 1 1 1 1 1

     unset int real bool string wide

     list [catch {set int} msg] $msg [catch {set real} msg] $msg \

 	    [catch {set bool} msg] $msg [catch {set string} msg] $msg \

 	    [catch {set wide} msg] $msg

 } {0 -6 0 -2.5 0 0 0 stringValue 0 13579}

 test link-4.2 {unsetting linked variables} {testlink} {

     testlink delete

     testlink set -6 -2.1 0 stringValue 97531

     testlink create 1 1 1 1 1

     unset int real bool string wide

     set int 102

     set real 16

     set bool true

     set string newValue

     set wide 333555

     testlink get

 } {102 16.0 1 newValue 333555}

 test link-5.1 {unlinking variables} {testlink} {

     testlink delete

     testlink set -6 -2.25 0 stringValue 13579

     testlink delete

     set int xx1

     set real qrst

     set bool bogus

     set string 12345

     set wide 875421

     testlink get

 } {-6 -2.25 0 stringValue 13579}

 test link-5.2 {unlinking variables} {testlink} {

     testlink delete

     testlink set -6 -2.25 0 stringValue 97531

     testlink create 1 1 1 1 1

     testlink delete

     testlink set 25 14.7 7 - 999999

     list $int $real $bool $string $wide

 } {-6 -2.25 0 stringValue 97531}

 test link-6.1 {errors in setting up link} {testlink} {

     testlink delete

     catch {unset int}

     set int(44) 1

     list [catch {testlink create 1 1 1 1 1} msg] $msg

 } {1 {can't set "int": variable is array}}

 catch {unset int}

 test link-7.1 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar int y

 	unset y

     }

     testlink delete

     testlink create 1 0 0 0 0

     testlink set 14 {} {} {} {}

     x

     list [catch {set int} msg] $msg

 } {0 14}

 test link-7.2 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar int y

 	return [set y]

     }

     testlink delete

     testlink create 1 0 0 0 0

     testlink set 0 {} {} {} {}

     set int

     testlink set 23 {} {} {} {}

     x

     list [x] $int

 } {23 23}

 test link-7.3 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar int y

 	set y 44

     }

     testlink delete

     testlink create 0 0 0 0 0

     testlink set 11 {} {} {} {}

     list [catch x msg] $msg $int

 } {1 {can't set "y": linked variable is read-only} 11}

 test link-7.4 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar int y

 	set y abc

     }

     testlink delete

     testlink create 1 1 1 1 1

     testlink set -4 {} {} {} {}

     list [catch x msg] $msg $int

 } {1 {can't set "y": variable must have integer value} -4}

 test link-7.5 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar real y

 	set y abc

     }

     testlink delete

     testlink create 1 1 1 1 1

     testlink set -4 16.75 {} {} {}

     list [catch x msg] $msg $real

 } {1 {can't set "y": variable must have real value} 16.75}

 test link-7.6 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar bool y

 	set y abc

     }

     testlink delete

     testlink create 1 1 1 1 1

     testlink set -4 16.3 1 {} {}

     list [catch x msg] $msg $bool

 } {1 {can't set "y": variable must have boolean value} 1}

 test link-7.7 {access to linked variables via upvar} {testlink} {

     proc x {} {

 	upvar wide y

 	set y abc

     }

     testlink delete

     testlink create 1 1 1 1 1

     testlink set -4 16.3 1 {} 778899

     list [catch x msg] $msg $wide

 } {1 {can't set "y": variable must have integer value} 778899}

 test link-8.1 {Tcl_UpdateLinkedVar procedure} {testlink} {

     proc x args {

 	global x int real bool string wide

 	lappend x $args $int $real $bool $string $wide

     }

     set x {}

     testlink create 1 1 1 1 1

     testlink set 14 -2.0 0 xyzzy 995511

     trace var int w x

     testlink update 32 4.0 3 abcd 113355

     trace vdelete int w x

     set x

 } {{int {} w} 32 -2.0 0 xyzzy 995511}

 test link-8.2 {Tcl_UpdateLinkedVar procedure} {testlink} {

     proc x args {

 	global x int real bool string wide

 	lappend x $args $int $real $bool $string $wide

     }

     set x {}

     testlink create 1 1 1 1 1

     testlink set 14 -2.0 0 xyzzy 995511

     testlink delete

     trace var int w x

     testlink update 32 4.0 6 abcd 113355

     trace vdelete int w x

     set x

 } {}

 test link-8.3 {Tcl_UpdateLinkedVar procedure, read-only variable} {testlink} {

     testlink create 0 0 0 0 0

     list [catch {testlink update 47 {} {} {} {}} msg] $msg $int

 } {0 {} 47}

 catch {testlink set 0 0 0 - 0}

 catch {testlink delete}

 foreach i {int real bool string wide} {

     catch {unset $i}

 }

 # cleanup

 ::tcltest::cleanupTests

 return