# This file contains tests for the tclBasic.c source file. Tests appear in

# the same order as the C code that they test. The set of tests is

# currently incomplete since it currently includes only new tests for

# code changed for the addition of Tcl namespaces. Other variable-

# related tests appear in several other test files including

# assocd.test, cmdInfo.test, eval.test, expr.test, interp.test,

# and trace.test.

#

# Sourcing this file into Tcl runs the tests and generates output for

# errors. No output means no errors were found.

#

# Copyright (c) 1997 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: basic.test,v 1.25.2.7 2005/03/18 16:33:43 dgp Exp $

#

package require tcltest 2

namespace import -force ::tcltest::*

testConstraint testcmdtoken [llength [info commands testcmdtoken]]

testConstraint testcmdtrace [llength [info commands testcmdtrace]]

testConstraint testcreatecommand [llength [info commands testcreatecommand]]

testConstraint testevalex [llength [info commands testevalex]]

testConstraint exec [llength [info commands exec]]

# This variable needs to be changed when the major or minor version number for

# Tcl changes.

set tclvers 8.4

catch {namespace delete test_ns_basic}

catch {interp delete test_interp}

catch {rename p ""}

catch {rename q ""}

catch {rename cmd ""}

catch {unset x}

test basic-1.1 {Tcl_CreateInterp, creates interp's global namespace} {

    catch {interp delete test_interp}

    interp create test_interp

    interp eval test_interp {

        namespace eval test_ns_basic {

            proc p {} {

                return [namespace current]

            }

        }

    }

    list [interp eval test_interp {test_ns_basic::p}] \

         [interp delete test_interp]

} {::test_ns_basic {}}

test basic-2.1 {TclHideUnsafeCommands} {emptyTest} {

} {}

test basic-3.1 {Tcl_CallWhenDeleted: see dcall.test} {emptyTest} {

} {}

test basic-4.1 {Tcl_DontCallWhenDeleted: see dcall.test} {emptyTest} {

} {}

test basic-5.1 {Tcl_SetAssocData: see assoc.test} {emptyTest} {

} {}

test basic-6.1 {Tcl_DeleteAssocData: see assoc.test} {emptyTest} {

} {}

test basic-7.1 {Tcl_GetAssocData: see assoc.test} {emptyTest} {

} {}

test basic-8.1 {Tcl_InterpDeleted} {emptyTest} {

} {}

test basic-9.1 {Tcl_DeleteInterp: see interp.test} {emptyTest} {

} {}

test basic-10.1 {DeleteInterpProc, destroys interp's global namespace} {

    catch {interp delete test_interp}

    interp create test_interp

    interp eval test_interp {

        namespace eval test_ns_basic {

            namespace export p

            proc p {} {

                return [namespace current]

            }

        }

        namespace eval test_ns_2 {

            namespace import ::test_ns_basic::p

            variable v 27

            proc q {} {

                variable v

                return "[p] $v"

            }

        }

    }

    list [interp eval test_interp {test_ns_2::q}] \

         [interp eval test_interp {namespace delete ::}] \

         [catch {interp eval test_interp {set a 123}} msg] $msg \

         [interp delete test_interp]

} {{::test_ns_basic 27} {} 1 {invalid command name "set"} {}}

test basic-11.1 {HiddenCmdsDeleteProc, invalidate cached refs to deleted hidden cmd} {

    catch {interp delete test_interp}

    interp create test_interp

    interp eval test_interp {

        proc p {} {

            return 27

        }

    }

    interp alias {} localP test_interp p

    list [interp eval test_interp {p}] \

         [localP] \

         [test_interp hide p] \

         [catch {localP} msg] $msg \

         [interp delete test_interp] \

         [catch {localP} msg] $msg

} {27 27 {} 1 {invalid command name "p"} {} 1 {invalid command name "localP"}}

# NB: More tests about hide/expose are found in interp.test

test basic-12.1 {Tcl_HideCommand, names of hidden cmds can't have namespace qualifiers} {

    catch {interp delete test_interp}

    interp create test_interp

    interp eval test_interp {

        namespace eval test_ns_basic {

            proc p {} {

                return [namespace current]

            }

        }

    }

    list [catch {test_interp hide test_ns_basic::p x} msg] $msg \

	 [catch {test_interp hide x test_ns_basic::p} msg1] $msg1 \

         [interp delete test_interp]

} {1 {can only hide global namespace commands (use rename then hide)} 1 {cannot use namespace qualifiers in hidden command token (rename)} {}}

test basic-12.2 {Tcl_HideCommand, a hidden cmd remembers its containing namespace} {

    catch {namespace delete test_ns_basic}

    catch {rename cmd ""}

    proc cmd {} {   ;# note that this is global

        return [namespace current]

    }

    namespace eval test_ns_basic {

        proc hideCmd {} {

            interp hide {} cmd

        }

        proc exposeCmd {} {

            interp expose {} cmd

        }

        proc callCmd {} {

            cmd

        }

    }

    list [test_ns_basic::callCmd] \

         [test_ns_basic::hideCmd] \

         [catch {cmd} msg] $msg \

         [test_ns_basic::exposeCmd] \

         [test_ns_basic::callCmd] \

         [namespace delete test_ns_basic]

} {:: {} 1 {invalid command name "cmd"} {} :: {}}

test basic-13.1 {Tcl_ExposeCommand, a command stays in the global namespace and can not go to another namespace} {

    catch {namespace delete test_ns_basic}

    catch {rename cmd ""}

    proc cmd {} {   ;# note that this is global

        return [namespace current]

    }

    namespace eval test_ns_basic {

        proc hideCmd {} {

            interp hide {} cmd

        }

        proc exposeCmdFailing {} {

            interp expose {} cmd ::test_ns_basic::newCmd

        }

        proc exposeCmdWorkAround {} {

            interp expose {} cmd;

	    rename cmd ::test_ns_basic::newCmd;

        }

        proc callCmd {} {

            cmd

        }

    }

    list [test_ns_basic::callCmd] \

         [test_ns_basic::hideCmd] \

         [catch {test_ns_basic::exposeCmdFailing} msg] $msg \

         [test_ns_basic::exposeCmdWorkAround] \

         [test_ns_basic::newCmd] \

         [namespace delete test_ns_basic]

} {:: {} 1 {can not expose to a namespace (use expose to toplevel, then rename)} {} ::test_ns_basic {}}

test basic-13.2 {Tcl_ExposeCommand, invalidate cached refs to cmd now being exposed} {

    catch {rename p ""}

    catch {rename cmd ""}

    proc p {} {

        cmd

    }

    proc cmd {} {

        return 42

    }

    list [p] \

         [interp hide {} cmd] \

         [proc cmd {} {return Hello}] \

         [cmd] \

         [rename cmd ""] \

         [interp expose {} cmd] \

         [p]

} {42 {} {} Hello {} {} 42}

test basic-14.1 {Tcl_CreateCommand, new cmd goes into a namespace specified in its name, if any} {testcreatecommand} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    list [testcreatecommand create] \

	 [test_ns_basic::createdcommand] \

	 [testcreatecommand delete]

} {{} {CreatedCommandProc in ::test_ns_basic} {}}

test basic-14.2 {Tcl_CreateCommand, namespace code ignore single ":"s in middle or end of names} {testcreatecommand} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {rename value:at: ""}

    list [testcreatecommand create2] \

	 [value:at:] \

	 [testcreatecommand delete2]

} {{} {CreatedCommandProc2 in ::} {}}

test basic-15.1 {Tcl_CreateObjCommand, new cmd goes into a namespace specified in its name, if any} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    namespace eval test_ns_basic {}

    proc test_ns_basic::cmd {} {  ;# proc requires that ns already exist

        return [namespace current]

    }

    list [test_ns_basic::cmd] \

         [namespace delete test_ns_basic]

} {::test_ns_basic {}}

test basic-16.1 {TclInvokeStringCommand} {emptyTest} {

} {}

test basic-17.1 {TclInvokeObjCommand} {emptyTest} {

} {}

test basic-18.1 {TclRenameCommand, name of existing cmd can have namespace qualifiers} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {rename cmd ""}

    namespace eval test_ns_basic {

        proc p {} {

            return "p in [namespace current]"

        }

    }

    list [test_ns_basic::p] \

         [rename test_ns_basic::p test_ns_basic::q] \

         [test_ns_basic::q] 

} {{p in ::test_ns_basic} {} {p in ::test_ns_basic}}

test basic-18.2 {TclRenameCommand, existing cmd must be found} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    list [catch {rename test_ns_basic::p test_ns_basic::q} msg] $msg

} {1 {can't rename "test_ns_basic::p": command doesn't exist}}

test basic-18.3 {TclRenameCommand, delete cmd if new name is empty} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    namespace eval test_ns_basic {

        proc p {} {

            return "p in [namespace current]"

        }

    }

    list [info commands test_ns_basic::*] \

         [rename test_ns_basic::p ""] \

         [info commands test_ns_basic::*]

} {::test_ns_basic::p {} {}}

test basic-18.4 {TclRenameCommand, bad new name} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    namespace eval test_ns_basic {

        proc p {} {

            return "p in [namespace current]"

        }

    }

    rename test_ns_basic::p :::george::martha

} {}

test basic-18.5 {TclRenameCommand, new name must not already exist} {

    namespace eval test_ns_basic {

        proc q {} {

            return 42

        }

    }

    list [catch {rename test_ns_basic::q :::george::martha} msg] $msg

} {1 {can't rename to ":::george::martha": command already exists}}

test basic-18.6 {TclRenameCommand, check for command shadowing by newly renamed cmd} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {rename p ""}

    catch {rename q ""}

    proc p {} {

        return "p in [namespace current]"

    }

    proc q {} {

        return "q in [namespace current]"

    }

    namespace eval test_ns_basic {

        proc callP {} {

            p

        }

    }

    list [test_ns_basic::callP] \

         [rename q test_ns_basic::p] \

         [test_ns_basic::callP]

} {{p in ::} {} {q in ::test_ns_basic}}

test basic-19.1 {Tcl_SetCommandInfo} {emptyTest} {

} {}

test basic-20.1 {Tcl_GetCommandInfo, names for commands created inside namespaces} {testcmdtoken} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {rename p ""}

    catch {rename q ""}

    catch {unset x}

    set x [namespace eval test_ns_basic::test_ns_basic2 {

        # the following creates a cmd in the global namespace

        testcmdtoken create p

    }]

    list [testcmdtoken name $x] \

         [rename ::p q] \

         [testcmdtoken name $x]

} {{p ::p} {} {q ::q}}

test basic-20.2 {Tcl_GetCommandInfo, names for commands created outside namespaces} {testcmdtoken} {

    catch {rename q ""}

    set x [testcmdtoken create test_ns_basic::test_ns_basic2::p]

    list [testcmdtoken name $x] \

         [rename test_ns_basic::test_ns_basic2::p q] \

         [testcmdtoken name $x]

} {{p ::test_ns_basic::test_ns_basic2::p} {} {q ::q}}

test basic-21.1 {Tcl_GetCommandName} {emptyTest} {

} {}

test basic-22.1 {Tcl_GetCommandFullName} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    namespace eval test_ns_basic1 {

        namespace export cmd*

        proc cmd1 {} {}

        proc cmd2 {} {}

    }

    namespace eval test_ns_basic2 {

        namespace export *

        namespace import ::test_ns_basic1::*

        proc p {} {}

    }

    namespace eval test_ns_basic3 {

        namespace import ::test_ns_basic2::*

        proc q {} {}

        list [namespace which -command foreach] \

             [namespace which -command q] \

             [namespace which -command p] \

             [namespace which -command cmd1] \

             [namespace which -command ::test_ns_basic2::cmd2]

    }

} {::foreach ::test_ns_basic3::q ::test_ns_basic3::p ::test_ns_basic3::cmd1 ::test_ns_basic2::cmd2}

test basic-23.1 {Tcl_DeleteCommand} {emptyTest} {

} {}

test basic-24.1 {Tcl_DeleteCommandFromToken, invalidate all compiled code if cmd has compile proc} {

    catch {interp delete test_interp}

    catch {unset x}

    interp create test_interp

    interp eval test_interp {

        proc useSet {} {

            return [set a 123]

        }

    }

    set x [interp eval test_interp {useSet}]

    interp eval test_interp {

        rename set ""

        proc set {args} {

            return "set called with $args"

        }

    }

    list $x \

         [interp eval test_interp {useSet}] \

         [interp delete test_interp]

} {123 {set called with a 123} {}}

test basic-24.2 {Tcl_DeleteCommandFromToken, deleting commands changes command epoch} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {rename p ""}

    proc p {} {

        return "global p"

    }

    namespace eval test_ns_basic {

        proc p {} {

            return "namespace p"

        }

        proc callP {} {

            p

        }

    }

    list [test_ns_basic::callP] \

         [rename test_ns_basic::p ""] \

         [test_ns_basic::callP]

} {{namespace p} {} {global p}}

test basic-24.3 {Tcl_DeleteCommandFromToken, delete imported cmds that refer to a deleted cmd} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {rename p ""}

    namespace eval test_ns_basic {

        namespace export p

        proc p {} {return 42}

    }

    namespace eval test_ns_basic2 {

        namespace import ::test_ns_basic::*

        proc callP {} {

            p

        }

    }

    list [test_ns_basic2::callP] \

         [info commands test_ns_basic2::*] \

         [rename test_ns_basic::p ""] \

         [catch {test_ns_basic2::callP} msg] $msg \

         [info commands test_ns_basic2::*]

} {42 {::test_ns_basic2::callP ::test_ns_basic2::p} {} 1 {invalid command name "p"} ::test_ns_basic2::callP}

test basic-25.1 {TclCleanupCommand} {emptyTest} {

} {}

test basic-26.1 {Tcl_EvalObj: preserve object while evaling it} {

    # If object isn't preserved, errorInfo would be set to

    # "foo\n    while executing\n\"garbage bytes\"" because the object's

    # string would have been freed, leaving garbage bytes for the error

    # message.

    proc bgerror {args} {set ::x $::errorInfo}

    set fName [makeFile {} test1]

    set f [open $fName w]

    fileevent $f writable "fileevent $f writable {}; error foo"

    set x {}

    vwait x

    close $f

    removeFile test1

    rename bgerror {}

    set x

} "foo\n    while executing\n\"error foo\""

test basic-26.2 {Tcl_EvalObjEx, pure-list branch: preserve "objv"} {

    #

    # Follow the pure-list branch in a manner that

    #   a - the pure-list internal rep is destroyed by shimmering

    #   b - the command returns an error

    # As the error code in Tcl_EvalObjv accesses the list elements, this will

    # cause a segfault if [Bug 1119369] has not been fixed.

    #

    set SRC [list foo 1] ;# pure-list command 

    proc foo str {

	# Shimmer pure-list to cmdName, cleanup and error

	proc $::SRC {} {}; $::SRC

	error "BAD CALL"

    }

    catch {eval $SRC}

} 1

test basic-27.1 {Tcl_ExprLong} {emptyTest} {

} {}

test basic-28.1 {Tcl_ExprDouble} {emptyTest} {

} {}

test basic-29.1 {Tcl_ExprBoolean} {emptyTest} {

} {}

test basic-30.1 {Tcl_ExprLongObj} {emptyTest} {

} {}

test basic-31.1 {Tcl_ExprDoubleObj} {emptyTest} {

} {}

test basic-32.1 {Tcl_ExprBooleanObj} {emptyTest} {

} {}

test basic-33.1 {TclInvoke} {emptyTest} {

} {}

test basic-34.1 {TclGlobalInvoke} {emptyTest} {

} {}

test basic-35.1 {TclObjInvokeGlobal} {emptyTest} {

} {}

test basic-36.1 {TclObjInvoke, lookup of "unknown" command} {

    catch {eval namespace delete [namespace children :: test_ns_*]}

    catch {interp delete test_interp}

    interp create test_interp

    interp eval test_interp {

        proc unknown {args} {

            return "global unknown"

        }

        namespace eval test_ns_basic {

            proc unknown {args} {

                return "namespace unknown"

            }

        }

    }

    list [interp alias test_interp newAlias test_interp doesntExist] \

         [catch {interp eval test_interp {newAlias}} msg] $msg \

         [interp delete test_interp]

} {newAlias 0 {global unknown} {}}

test basic-37.1 {Tcl_ExprString: see expr.test} {emptyTest} {

} {}

test basic-38.1 {Tcl_ExprObj} {emptyTest} {

} {}

test basic-39.1 {Tcl_CreateTrace, correct command and argc/argv arguments of trace proc} {testcmdtrace} {

    testcmdtrace tracetest {set stuff [expr 14 + 16]}

} {{expr 14 + 16} {expr 14 + 16} {set stuff [expr 14 + 16]} {set stuff 30}}

test basic-39.2 {Tcl_CreateTrace, correct command and argc/argv arguments of trace proc} {testcmdtrace} {

    testcmdtrace tracetest {set stuff [info tclversion]}

} [list {info tclversion} {info tclversion} {set stuff [info tclversion]} "set stuff $tclvers"]

test basic-39.3 {Tcl_CreateTrace, correct command and argc/argv arguments of trace proc} {testcmdtrace} {

    testcmdtrace deletetest {set stuff [info tclversion]}

} $tclvers

test basic-39.4 {Tcl_CreateTrace, check that tracing doesn't cause memory faults} {testcmdtrace} {

    # Note that the proc call is the same as the variable name, and that

    # the call can be direct or indirect by way of another procedure

    proc tracer {args} {}

    proc tracedLoop {level} {

	incr level

	tracer

	foreach tracer [expr {$level==1 ? {1 2} : {}}] {tracedLoop $level}

    }

    testcmdtrace tracetest {tracedLoop 0}

} {{tracedLoop 0} {tracedLoop 0} {incr level} {incr level} tracer {tracer} {expr {$level==1 ? {1 2} : {}}} {expr {$level==1 ? {1 2} : {}}} {foreach tracer [expr {$level==1 ? {1 2} : {}}] {tracedLoop $level}} {foreach tracer {1 2} {tracedLoop $level}} {tracedLoop $level} {tracedLoop 1} {incr level} {incr level} tracer {tracer} {expr {$level==1 ? {1 2} : {}}} {expr {$level==1 ? {1 2} : {}}} {foreach tracer [expr {$level==1 ? {1 2} : {}}] {tracedLoop $level}} {foreach tracer {} {tracedLoop $level}} {tracedLoop $level} {tracedLoop 1} {incr level} {incr level} tracer {tracer} {expr {$level==1 ? {1 2} : {}}} {expr {$level==1 ? {1 2} : {}}} {foreach tracer [expr {$level==1 ? {1 2} : {}}] {tracedLoop $level}} {foreach tracer {} {tracedLoop $level}}}

catch {rename tracer {}}

catch {rename tracedLoop {}}

test basic-39.5 {Tcl_CreateObjTrace, status return TCL_ERROR} {testcmdtrace} {

    proc Error { args } { error "Shouldn't get here" }

    set x 1;

    list [catch {testcmdtrace resulttest {Error $x}} result] [set result]

} {1 {Error $x}}

test basic-39.6 {Tcl_CreateObjTrace, status return TCL_RETURN} {testcmdtrace} {

    proc Return { args } { error "Shouldn't get here" }

    set x 1;

    list [catch {testcmdtrace resulttest {Return $x}} result] [set result]

} {2 {}}

test basic-39.7 {Tcl_CreateObjTrace, status return TCL_BREAK} {testcmdtrace} {

    proc Break { args } { error "Shouldn't get here" }

    set x 1;

    list [catch {testcmdtrace resulttest {Break $x}} result] [set result]

} {3 {}}

test basic-39.8 {Tcl_CreateObjTrace, status return TCL_CONTINUE} {testcmdtrace} {

    proc Continue { args } { error "Shouldn't get here" }

    set x 1;

    list [catch {testcmdtrace resulttest {Continue $x}} result] [set result]

} {4 {}}

test basic-39.9 {Tcl_CreateObjTrace, status return unknown} {testcmdtrace} {

    proc OtherStatus { args } { error "Shouldn't get here" }

    set x 1;

    list [catch {testcmdtrace resulttest {OtherStatus $x}} result] [set result]

} {6 {}}

test basic-39.10 {Tcl_CreateTrace, correct level interpretation} {testcmdtrace} {

    proc foo {} {uplevel 1 bar}

    proc bar {} {uplevel 1 grok}

    proc grok {} {uplevel 1 spock}

    proc spock {} {uplevel 1 fascinating}

    proc fascinating {} {}

    testcmdtrace leveltest {foo}

} {foo {foo} {uplevel 1 bar} {uplevel 1 bar} bar {bar} {uplevel 1 grok} {uplevel 1 grok}}

test basic-40.1 {Tcl_DeleteTrace} {emptyTest} {

    # the above tests have tested Tcl_DeleteTrace

} {}

test basic-41.1 {Tcl_AddErrorInfo} {emptyTest} {

} {}

test basic-42.1 {Tcl_AddObjErrorInfo} {emptyTest} {

} {}

test basic-43.1 {Tcl_VarEval} {emptyTest} {

} {}

test basic-44.1 {Tcl_GlobalEval} {emptyTest} {

} {}

test basic-45.1 {Tcl_SetRecursionLimit: see interp.test} {emptyTest} {

} {}

test basic-46.1 {Tcl_AllowExceptions: exception return not allowed} {stdio} {

    catch {close $f}

    set res [catch {

	set f [open |[list [interpreter]] w+]

	fconfigure $f -buffering line

	puts $f {fconfigure stdout -buffering line}

	puts $f continue

	puts $f {puts $errorInfo}

	puts $f {puts DONE}

	set newMsg {}

	set msg {}

	while {$newMsg != "DONE"} {

	    set newMsg [gets $f]

	    append msg "${newMsg}\n"

	}

	close $f

    } error]

    list $res $msg

} {1 {invoked "continue" outside of a loop

    while executing

"continue"

DONE

}}

test basic-46.2 {Tcl_AllowExceptions: exception return not allowed} -setup {

    set fName [makeFile {

	puts hello

	break

    } BREAKtest]

} -constraints {

    exec

} -body {

    exec [interpreter] $fName

} -cleanup {

    removeFile BREAKtest

} -returnCodes error -match glob -result {hello

invoked "break" outside of a loop

    while executing

"break"

    (file "*BREAKtest" line 3)}    

test basic-46.3 {Tcl_AllowExceptions: exception return not allowed} -setup {

    set fName [makeFile {

	interp alias {} patch {} info patchlevel

	patch

	break

    } BREAKtest]

} -constraints {

    exec

} -body {

    exec [interpreter] $fName

} -cleanup {

    removeFile BREAKtest

} -returnCodes error -match glob -result {invoked "break" outside of a loop

    while executing

"break"

    (file "*BREAKtest" line 4)}    

test basic-46.4 {Tcl_AllowExceptions: exception return not allowed} -setup {

    set fName [makeFile {

	foo [set a 1] [break]

    } BREAKtest]

} -constraints {

    exec

} -body {

    exec [interpreter] $fName

} -cleanup {

    removeFile BREAKtest

} -returnCodes error -match glob -result {invoked "break" outside of a loop

    while executing*

"foo \[set a 1] \[break]"

    (file "*BREAKtest" line 2)}

test basic-46.5 {Tcl_AllowExceptions: exception return not allowed} -setup {

    set fName [makeFile {

	return -code return

    } BREAKtest]

} -constraints {

    exec

} -body {

    exec [interpreter] $fName

} -cleanup {

    removeFile BREAKtest

} -returnCodes error -match glob -result {command returned bad code: 2

    while executing

"return -code return"

    (file "*BREAKtest" line 2)}

test basic-47.1 {Tcl_EvalEx: check for missing close-bracket} -body {

    subst {a[set b [format cd]}

} -returnCodes error -result {missing close-bracket}

test basic-49.1 {Tcl_EvalEx: verify TCL_EVAL_GLOBAL operation} testevalex {

    set ::x global

    namespace eval ns {

        variable x namespace

        testevalex {set x changed} global

        set ::result [list $::x $x]

    } 

    namespace delete ns

    set ::result

} {changed namespace}

test basic-49.2 {Tcl_EvalEx: verify TCL_EVAL_GLOBAL operation} testevalex {

    set ::x global

    namespace eval ns {

        variable x namespace

        testevalex {set ::context $x} global

    }

    namespace delete ns

    set ::context

} {global}

# cleanup

catch {eval namespace delete [namespace children :: test_ns_*]}

catch {namespace delete george}

catch {interp delete test_interp}

catch {rename p ""}

catch {rename q ""}

catch {rename cmd ""}

catch {rename value:at: ""}

catch {unset x}

::tcltest::cleanupTests

return