source: downloads/tcl8.5.2/tests/init.test @ 42

# Functionality covered: this file contains a collection of tests for the
# auto loading and namespaces.
#
# 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: init.test,v 1.18 2007/12/13 15:26:06 dgp Exp $

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

# Clear out any namespaces called test_ns_*
catch {namespace delete {*}[namespace children :: test_ns_*]}

# Six cases - white box testing

test init-1.1 {auto_qualify - absolute cmd - namespace} {
    auto_qualify ::foo::bar ::blue
} ::foo::bar

test init-1.2 {auto_qualify - absolute cmd - global} {
    auto_qualify ::global ::sub
} global

test init-1.3 {auto_qualify - no colons cmd - global} {
    auto_qualify nocolons ::
} nocolons 

test init-1.4 {auto_qualify - no colons cmd - namespace} {
    auto_qualify nocolons ::sub
} {::sub::nocolons nocolons}

test init-1.5 {auto_qualify - colons in cmd - global} {
    auto_qualify foo::bar ::
} ::foo::bar

test init-1.6 {auto_qualify - colons in cmd - namespace} {
    auto_qualify foo::bar ::sub
} {::sub::foo::bar ::foo::bar}

# Some additional tests

test init-1.7 {auto_qualify - multiples colons 1} {
    auto_qualify :::foo::::bar ::blue
} ::foo::bar

test init-1.8 {auto_qualify - multiple colons 2} {
    auto_qualify :::foo ::bar
} foo


# we use a sub interp and auto_reset and double the tests because there is 2
# places where auto_loading occur (before loading the indexes files and after)

set testInterp [interp create]
interp eval $testInterp [list set argv $argv]
interp eval $testInterp [list package require tcltest]
interp eval $testInterp [list namespace import -force ::tcltest::*]

interp eval $testInterp {

auto_reset
catch {rename parray {}}

test init-2.0 {load parray - stage 1} {
    set ret [catch {parray} error]
    rename parray {} ; # remove it, for the next test - that should not fail.
    list $ret $error
} {1 {wrong # args: should be "parray a ?pattern?"}}


test init-2.1 {load parray - stage 2} {
    set ret [catch {parray} error]
    list $ret $error
} {1 {wrong # args: should be "parray a ?pattern?"}}


auto_reset
catch {rename ::safe::setLogCmd {}}
#unset auto_index(::safe::setLogCmd)
#unset auto_oldpath

test init-2.2 {load ::safe::setLogCmd - stage 1} {
    ::safe::setLogCmd
    rename ::safe::setLogCmd {} ; # should not fail
} {}

test init-2.3 {load ::safe::setLogCmd - stage 2} {
    ::safe::setLogCmd
    rename ::safe::setLogCmd {} ; # should not fail
} {}

auto_reset
catch {rename ::safe::setLogCmd {}}

test init-2.4 {load safe:::setLogCmd - stage 1} {
    safe:::setLogCmd ; # intentionally 3 :
    rename ::safe::setLogCmd {} ; # should not fail
} {}

test init-2.5 {load safe:::setLogCmd - stage 2} {
    safe:::setLogCmd ; # intentionally 3 :
    rename ::safe::setLogCmd {} ; # should not fail
} {}

auto_reset
catch {rename ::safe::setLogCmd {}}

test init-2.6 {load setLogCmd from safe:: - stage 1} {
    namespace eval safe setLogCmd 
    rename ::safe::setLogCmd {} ; # should not fail
} {}

test init-2.7 {oad setLogCmd from safe::  - stage 2} {
    namespace eval safe setLogCmd 
    rename ::safe::setLogCmd {} ; # should not fail
} {}



test init-2.8 {load tcl::HistAdd} -setup {
    auto_reset
    catch {rename ::tcl::HistAdd {}}
} -body {
    # 3 ':' on purpose
    list [catch {tcl:::HistAdd} error] $error
} -cleanup {
    rename ::tcl::HistAdd {} ; 
} -result {1 {wrong # args: should be "tcl:::HistAdd command ?exec?"}}


test init-3.0 {random stuff in the auto_index, should still work} {
    set auto_index(foo:::bar::blah) {
        namespace eval foo {namespace eval bar {proc blah {} {return 1}}}
    }
    foo:::bar::blah
} 1

# Tests that compare the error stack trace generated when autoloading
# with that generated when no autoloading is necessary.  Ideally they
# should be the same.

set count 0
foreach arg [subst -nocommands -novariables {
                c
                {argument
                which spans
                multiple lines}
                {argument which is all on one line but which is of such great length that the Tcl C library will truncate it when appending it onto the global error stack}
                {argument which spans multiple lines
                and is long enough to be truncated and
"               <- includes a false lead in the prune point search
                and must be longer still to force truncation}
                {contrived example: rare circumstance 
                where the point at which to prune the
                error stack cannot be uniquely determined.
                foo bar foo
"}
                {contrived example: rare circumstance 
                where the point at which to prune the
                error stack cannot be uniquely determined.
                foo bar
"}
                {argument that contains non-ASCII character, \u20ac, and which is of such great length that it will be longer than 150 bytes so it will be truncated by the Tcl C library}
        }] {

    test init-4.$count.0 {::errorInfo produced by [unknown]} {
        auto_reset
        catch {parray a b $arg}
        set first $::errorInfo
        catch {parray a b $arg}
        set second $::errorInfo
        string equal $first $second
    } 1

    test init-4.$count.1 {::errorInfo produced by [unknown]} {
        auto_reset
        namespace eval junk [list array set $arg [list 1 2 3 4]]
        trace variable ::junk::$arg r \
                "[list error [subst {Variable \"$arg\" is write-only}]] ;# "
        catch {parray ::junk::$arg}
        set first $::errorInfo
        catch {parray ::junk::$arg}
        set second $::errorInfo
        string equal $first $second
    } 1

    incr count
}

test init-5.0 {return options passed through ::unknown} -setup {
    catch {rename xxx {}}
    set ::auto_index(::xxx) {proc ::xxx {} {
        return -code error -level 2 xxx
    }}
} -body {
    set code [catch {::xxx} foo bar]
    set code2 [catch {::xxx} foo2 bar2]
    list $code $foo $bar $code2 $foo2 $bar2
} -cleanup {
    unset ::auto_index(::xxx)
} -result {2 xxx {-errorcode NONE -code 1 -level 1} 2 xxx {-code 1 -level 1 -errorcode NONE}}

cleanupTests
}       ;#  End of [interp eval $testInterp]

# cleanup
interp delete $testInterp
::tcltest::cleanupTests
return