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[/] [or1k/] [trunk/] [insight/] [itcl/] [itcl/] [tests/] [delete.test] - Blame information for rev 1773

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Line No. Rev Author Line
1 578 markom 
#
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# Tests for deleting classes and objects
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# ----------------------------------------------------------------------
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#   AUTHOR:  Michael J. McLennan
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#            Bell Labs Innovations for Lucent Technologies
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#            mmclennan@lucent.com
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#            http://www.tcltk.com/itcl
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#
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#      RCS:  $Id: delete.test,v 1.1.1.1 2002-01-16 10:24:47 markom Exp $
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# ----------------------------------------------------------------------
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#            Copyright (c) 1993-1998  Lucent Technologies, Inc.
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# ======================================================================
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# See the file "license.terms" for information on usage and
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# redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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if {[string compare test [info procs test]] == 1} then {source defs}
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# ----------------------------------------------------------------------
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#  Deleting classes and objects
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# ----------------------------------------------------------------------
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test delete-1.1 {define a simple classes with inheritance} {
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    itcl::class test_delete_base {
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        variable num 0
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        method show {} {
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            return $num
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        }
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    }
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} ""
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test delete-1.2 {create some base class objects} {
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    for {set i 0} {$i < 5} {incr i} {
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        test_delete_base #auto
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    }
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    lsort [find objects -class test_delete_base]
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} {test_delete_base0 test_delete_base1 test_delete_base2 test_delete_base3 test_delete_base4}
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test delete-1.3 {delete the base class--class and all objects go away} {
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    list [delete class test_delete_base] \
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         [find classes test_delete_base] \
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         [namespace children :: test_delete_base] \
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         [namespace which -command test_delete_base] \
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         [find objects test_delete_base*]
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} {{} {} {} {} {}}
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# ----------------------------------------------------------------------
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#  Deleting classes and objects with inheritance
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# ----------------------------------------------------------------------
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test delete-2.1 {define a simple classes with inheritance} {
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    variable ::test_delete_watch ""
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    itcl::class test_delete_base {
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        variable num 0
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        method show {} {
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            return $num
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        }
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        destructor {
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            global ::test_delete_watch
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            lappend test_delete_watch $this
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        }
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    }
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    itcl::class test_delete {
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        inherit test_delete_base
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        method show {} {
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            return ">$num<"
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        }
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    }
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} ""
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test delete-2.2 {create some base and derived class objects} {
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    for {set i 0} {$i < 3} {incr i} {
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        test_delete_base #auto
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    }
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    for {set i 0} {$i < 3} {incr i} {
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        test_delete #auto
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    }
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    lsort [find objects -isa test_delete_base]
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} {test_delete0 test_delete1 test_delete2 test_delete_base0 test_delete_base1 test_delete_base2}
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test delete-2.3 {delete the base class--class and all objects go away} {
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    list [delete class test_delete_base] \
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         [find classes test_delete*] \
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         [namespace children :: test_delete*] \
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         [namespace which -command test_delete_base] \
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         [namespace which -command test_delete] \
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         [find objects test_delete*]
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} {{} {} {} {} {} {}}
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test delete-2.4 {object destructors get invoked properly} {
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    lsort $test_delete_watch
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} {::test_delete0 ::test_delete1 ::test_delete2 ::test_delete_base0 ::test_delete_base1 ::test_delete_base2}
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# ----------------------------------------------------------------------
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#  Deleting class namespaces
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# ----------------------------------------------------------------------
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test delete-3.1 {redefine classes with inheritance} {
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    variable ::test_delete_watch ""
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    itcl::class test_delete_base {
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        variable num 0
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        method show {} {
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            return $num
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        }
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        destructor {
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            global test_delete_watch
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            lappend test_delete_watch $this
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        }
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    }
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    itcl::class test_delete {
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        inherit test_delete_base
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        method show {} {
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            return ">$num<"
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        }
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    }
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} ""
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test delete-3.2 {create some base and derived class objects} {
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    for {set i 0} {$i < 3} {incr i} {
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        test_delete_base #auto
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    }
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    for {set i 0} {$i < 3} {incr i} {
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        test_delete #auto
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    }
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    lsort [find objects -isa test_delete_base]
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} {test_delete0 test_delete1 test_delete2 test_delete_base0 test_delete_base1 test_delete_base2}
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test delete-3.3 {deleting a class namespace is like deleting a class} {
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    list [namespace delete test_delete_base] \
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         [find classes test_delete*] \
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         [namespace children :: test_delete*] \
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         [namespace which -command test_delete_base] \
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         [namespace which -command test_delete] \
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         [find objects test_delete*]
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} {{} {} {} {} {} {}}
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test delete-3.4 {object destructors get invoked, even during catastrophe} {
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    lsort $test_delete_watch
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} {::test_delete0 ::test_delete1 ::test_delete2 ::test_delete_base0 ::test_delete_base1 ::test_delete_base2}
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# ----------------------------------------------------------------------
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#  Self-destructing objects
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# ----------------------------------------------------------------------
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test basic-4.1 {define a class where objects destroy themselves} {
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    itcl::class test_delete {
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        public variable x ""
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        public variable deletecommand ""
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        constructor {args} {
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            eval configure $args
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        }
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        destructor {
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            eval $deletecommand
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        }
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        method killme {code} {
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            delete object $this
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            eval $code
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        }
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    }
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} {}
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test basic-4.2 {an object can delete itself} {
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    set obj [test_delete #auto -x "data stays"]
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    list [$obj killme {return $x}] [find objects -isa test_delete]
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} {{data stays} {}}
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test basic-4.3 {the "this" variable becomes null after delete} {
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    set obj [test_delete #auto]
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    list [$obj killme {return $this}] [find objects -isa test_delete]
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} {{} {}}
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test basic-4.4 {an object being destructed can't be deleted} {
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    set obj [test_delete #auto -deletecommand {delete object $this}]
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    list [catch {delete object $obj} msg] $msg
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} {1 {can't delete an object while it is being destructed}}
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namespace delete test_delete
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# ----------------------------------------------------------------------
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#  Delete objects using path names and scoped values
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# ----------------------------------------------------------------------
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test basic-5.1 {define a simple class} {
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    itcl::class test_delete_name {
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        private variable x 0
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        method test {x} {
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            return $x
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        }
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    }
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} {}
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test basic-5.2 {delete using a qualified name} {
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    namespace eval test_delete2 {test_delete_name #auto}
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    set cmd {delete object test_delete2::test_delete_name0}
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    list [catch $cmd msg] $msg [find objects -isa test_delete_name]
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} {0 {} {}}
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test basic-5.3 {delete using a scoped value} {
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    set obj [namespace eval test_delete2 {code [test_delete_name #auto]}]
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    set cmd [list delete object $obj]
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    list [catch $cmd msg] $msg [find objects -isa test_delete_name]
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} {0 {} {}}
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test basic-5.4 {scoped command names are decoded properly} {
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    list [catch {delete object {namespace inscope ::xyzzy xxx}} msg] $msg \
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         [catch {delete object {namespace inscope :: xxx yyy}} msg] $msg \
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         [catch {delete object {namespace inscope :: xyzzy}} msg] $msg
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} {1 {unknown namespace "::xyzzy"} 1 {malformed command "namespace inscope :: xxx yyy": should be "namespace inscope namesp command"} 1 {object "namespace inscope :: xyzzy" not found}}
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namespace delete test_delete_name test_delete2

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