source: downloads/tcl8.5.2/tests/link.test @ 25

# 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 1.17 2007/12/13 15:26:06 dgp Exp $

if {[lsearch [namespace children] ::tcltest] == -1} {
    package require tcltest 2
    namespace import -force ::tcltest::*
}

testConstraint testlink [llength [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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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 1 1 1 1 1 1 1 1 1
    testlink set -3 2 0 "A long string with spaces"  43214321 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    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 64 250 30000 60000 0xbaadbeef 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 1 1 1 1 1
    set int "0o0721"
    set real -10.5
    set bool true
    set string abcdef
    set wide 135135
    set char 79
    set uchar 161
    set short 8000
    set ushort 40000
    set uint 0xc001babe
    set long 34543
    set ulong 567890
    set float 1.0987654321
    set uwide 357357357357
    concat [testlink get] | $int $real $bool $string $wide $char $uchar $short $ushort $uint $long $ulong $float $uwide
} {465 -10.5 1 abcdef 135135 79 161 8000 40000 -1073628482 34543 567890 1.0987653732299805 357357357357 | 0o0721 -10.5 true abcdef 135135 79 161 8000 40000 0xc001babe 34543 567890 1.0987654321 357357357357}
test link-2.2 {writing bad values into variables} {testlink} {
    testlink delete
    testlink set 43 1.23 4 - 56785678 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 0 1 1 0 0 0 0 0 0 0 0 0 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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 0 0 1 1 0 0 0 0 0 0 0 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
} {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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 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
    lrange [testlink get] 0 4
} {102 16.0 1 newValue 333555}

test link-5.1 {unlinking variables} {testlink} {
    testlink delete
    testlink set -6 -2.25 0 stringValue 13579 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink delete
    set int xx1
    set real qrst
    set bool bogus
    set string 12345
    set wide 875421
    set char skjdf
    set uchar dslfjk
    set short slkf
    set ushort skrh
    set uint sfdkfkh
    set long srkjh
    set ulong sjkg
    set float dskjfbjfd
    set uwide isdfsngs
    testlink get
} {-6 -2.25 0 stringValue 13579 64 250 30000 60000 -1091585346 12321 32123 3.25 1231231234}
test link-5.2 {unlinking variables} {testlink} {
    testlink delete
    testlink set -6 -2.25 0 stringValue 97531 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink create 1 1 1 1 1 1 1 1 1 1 1 1 1 1
    testlink delete
    testlink set 25 14.7 7 - 999999 65 251 30001 60001 0xbabebeef 12322 32124 3.125 12312312340
    list $int $real $bool $string $wide $char $uchar $short $ushort $uint $long $ulong $float $uwide
} {-6 -2.25 0 stringValue 97531 64 250 30000 60000 3203381950 12321 32123 3.25 1231231234}

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 1 1 1 1 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 0 0 0 0 0 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 0 0 0 0 0 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 0 0 0 0 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 1 1 1 1 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 1 1 1 1 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 1 1 1 1 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 1 1 1 1 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 1 1 1 1 1 1 1 1 1
    testlink set 14 -2.0 0 xyzzy 995511 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    trace var int w x
    testlink update 32 4.0 3 abcd 113355 65 251 30001 60001 0xbabebeef 12322 32124 3.125 12312312340
    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 1 1 1 1 1 1 1 1 1
    testlink set 14 -2.0 0 xyzzy 995511 64 250 30000 60000 0xbeefbabe 12321 32123 3.25 1231231234
    testlink delete
    trace var int w x
    testlink update 32 4.0 6 abcd 113355 65 251 30001 60001 0xbabebeef 12322 32124 3.125 12312312340
    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 0 0 0 0 0 0 0 0 0
    list [catch {
        testlink update 47 {} {} {} {} {} {} {} {} {} {} {} {} {}
    } msg] $msg $int
} {0 {} 47}

catch {testlink set 0 0 0 - 0 0 0 0 0 0 0 0 0 0}
catch {testlink delete}
foreach i {int real bool string wide} {
    catch {unset $i}
}

# cleanup
::tcltest::cleanupTests
return