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# Commands covered:  load
#
# This file contains a collection of tests for one or more of the Tcl
# built-in commands.  Sourcing this file into Tcl runs the tests and
# generates output for errors.  No output means no errors were found.
#
# Copyright (c) 1995 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.

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

::tcltest::loadTestedCommands
catch [list package require -exact Tcltest [info patchlevel]]

# Figure out what extension is used for shared libraries on this
# platform.
if {![info exists ext]} {
    set ext [info sharedlibextension]
}
# Tests require the existence of one of the DLLs in the dltest directory.
set testDir [file join [file dirname [info nameofexecutable]] dltest]
set x [file join $testDir pkga$ext]
set dll "[file tail $x]Required"
testConstraint $dll [file readable $x]

# Tests also require that this DLL has not already been loaded.
set loaded "[file tail $x]Loaded"
set alreadyLoaded [info loaded]
testConstraint $loaded [expr {![string match *pkga* $alreadyLoaded]}]

set alreadyTotalLoaded [info loaded]

# Certain tests require the 'teststaticpkg' command from tcltest

testConstraint teststaticpkg [llength [info commands teststaticpkg]]

# Test load-10.1 requires the 'testsimplefilesystem' command from tcltest

testConstraint testsimplefilesystem \
	[llength [info commands testsimplefilesystem]]

test load-1.1 {basic errors} {} {
    list [catch {load} msg] $msg
} "1 {wrong \# args: should be \"load ?-global? ?-lazy? ?--? fileName ?packageName? ?interp?\"}"
test load-1.2 {basic errors} {} {
    list [catch {load a b c d} msg] $msg
} "1 {wrong \# args: should be \"load ?-global? ?-lazy? ?--? fileName ?packageName? ?interp?\"}"
test load-1.3 {basic errors} {} {
    list [catch {load a b foobar} msg] $msg
} {1 {could not find interpreter "foobar"}}
test load-1.4 {basic errors} {} {
    list [catch {load -global {}} msg] $msg
} {1 {must specify either file name or package name}}
test load-1.5 {basic errors} {} {
    list [catch {load -lazy {} {}} msg] $msg
} {1 {must specify either file name or package name}}
test load-1.6 {basic errors} {} {
    list [catch {load {} Unknown} msg] $msg
} {1 {package "Unknown" isn't loaded statically}}
test load-1.7 {basic errors} {} {
    list [catch {load -abc foo} msg] $msg
} "1 {bad option \"-abc\": must be -global, -lazy, or --}"
test load-1.8 {basic errors} {} {
    list [catch {load -global} msg] $msg
} "1 {couldn't figure out package name for -global}"

test load-2.1 {basic loading, with guess for package name} \
	[list $dll $loaded] {
    load -global [file join $testDir pkga$ext]
    list [pkga_eq abc def] [lsort [info commands pkga_*]]
} {0 {pkga_eq pkga_quote}}
interp create -safe child
test load-2.2 {loading into a safe interpreter, with package name conversion} \
	[list $dll $loaded] {
    load -lazy [file join $testDir pkgb$ext] pKgB child
    list [child eval pkgb_sub 44 13] [catch {child eval pkgb_unsafe} msg] $msg \
	    [catch {pkgb_sub 12 10} msg2] $msg2
} {31 1 {invalid command name "pkgb_unsafe"} 1 {invalid command name "pkgb_sub"}}
test load-2.3 {loading with no _Init procedure} -constraints [list $dll $loaded] \
-body {
    list [catch {load [file join $testDir pkgc$ext] foo} msg] $msg $errorCode
} -match glob \
    -result [list 1 {cannot find symbol "Foo_Init"*} \
		 {TCL LOOKUP LOAD_SYMBOL *Foo_Init}]
test load-2.4 {loading with no _SafeInit procedure} [list $dll $loaded] {
    list [catch {load [file join $testDir pkga$ext] {} child} msg] $msg
} {1 {can't use package in a safe interpreter: no Pkga_SafeInit procedure}}

test load-3.1 {error in _Init procedure, same interpreter} \
	[list $dll $loaded] {
    list [catch {load [file join $testDir pkge$ext] pkge} msg] \
	    $msg $::errorInfo $::errorCode
} {1 {couldn't open "non_existent": no such file or directory} {couldn't open "non_existent": no such file or directory
    while executing
"open non_existent"
    invoked from within
"if 44 {open non_existent}"
    invoked from within
"load [file join $testDir pkge$ext] pkge"} {POSIX ENOENT {no such file or directory}}}
test load-3.2 {error in _Init procedure, slave interpreter} \
	[list $dll $loaded] {
    catch {interp delete x}
    interp create x
    set ::errorCode foo
    set ::errorInfo bar
    set result [list [catch {load [file join $testDir pkge$ext] pkge x} msg] \
	    $msg $::errorInfo $::errorCode]
    interp delete x
    set result
} {1 {couldn't open "non_existent": no such file or directory} {couldn't open "non_existent": no such file or directory
    while executing
"open non_existent"
    invoked from within
"if 44 {open non_existent}"
    invoked from within
"load [file join $testDir pkge$ext] pkge x"} {POSIX ENOENT {no such file or directory}}}

test load-4.1 {reloading package into same interpreter} [list $dll $loaded] {
    list [catch {load [file join $testDir pkga$ext] pkga} msg] $msg
} {0 {}}
test load-4.2 {reloading package into same interpreter} -setup {
    catch {load [file join $testDir pkga$ext] pkga}
} -constraints [list $dll $loaded] -returnCodes error -body {
    load [file join $testDir pkga$ext] pkgb
} -result "file \"[file join $testDir pkga$ext]\" is already loaded for package \"Pkga\""

test load-5.1 {file name not specified and no static package: pick default} \
	[list $dll $loaded] {
    catch {interp delete x}
    interp create x
    load -global [file join $testDir pkga$ext] pkga
    load {} pkga x
    set result [info loaded x]
    interp delete x
    set result
} [list [list [file join $testDir pkga$ext] Pkga]]

# On some platforms, like SunOS 4.1.3, these tests can't be run because
# they cause the process to exit.
#
# As of 2005, such ancient broken systems no longer matter.

test load-6.1 {errors loading file} [list $dll $loaded] {
    catch {load foo foo}
} {1}

test load-7.1 {Tcl_StaticPackage procedure} [list teststaticpkg] {
    set x "not loaded"
    teststaticpkg Test 1 0
    load {} Test
    load {} Test child
    list [set x] [child eval set x]
} {loaded loaded}
test load-7.2 {Tcl_StaticPackage procedure} [list teststaticpkg] {
    set x "not loaded"
    teststaticpkg Another 0 0
    load {} Another
    child eval {set x "not loaded"}
    list [catch {load {} Another child} msg] $msg \
	[child eval set x] [set x]
} {1 {can't use package in a safe interpreter: no Another_SafeInit procedure} {not loaded} loaded}
test load-7.3 {Tcl_StaticPackage procedure} [list teststaticpkg] {
    set x "not loaded"
    teststaticpkg More 0 1
    load {} More
    set x
} {not loaded}
catch {load [file join $testDir pkga$ext] pkga}
catch {load [file join $testDir pkgb$ext] pkgb}
catch {load [file join $testDir pkge$ext] pkge}
set currentRealPackages [list [list [file join $testDir pkge$ext] Pkge] [list [file join $testDir pkgb$ext] Pkgb] [list [file join $testDir pkga$ext] Pkga]]
test load-7.4 {Tcl_StaticPackage procedure, redundant calls} -setup {
    teststaticpkg Test 1 0
    teststaticpkg Another 0 0
    teststaticpkg More 0 1
} -constraints [list teststaticpkg $dll $loaded] -body {
    teststaticpkg Double 0 1
    teststaticpkg Double 0 1
    info loaded
} -result [list {{} Double} {{} More} {{} Another} {{} Test} {*}$currentRealPackages {*}$alreadyTotalLoaded]

testConstraint teststaticpkg_8.x \
    [if {[testConstraint teststaticpkg]} {
	teststaticpkg Test 1 1
	teststaticpkg Another 0 1
	teststaticpkg More 0 1
	teststaticpkg Double 0 1
	expr 1
    } else {
	expr 0
    }]

test load-8.1 {TclGetLoadedPackages procedure} [list teststaticpkg_8.x $dll $loaded] {
    lsort -index 1 [info loaded]
} [lsort -index 1 [list {{} Double} {{} More} {{} Another} {{} Test} {*}$currentRealPackages {*}$alreadyTotalLoaded]]
test load-8.2 {TclGetLoadedPackages procedure} -constraints {teststaticpkg_8.x} -body {
    info loaded gorp
} -returnCodes error -result {could not find interpreter "gorp"}
test load-8.3a {TclGetLoadedPackages procedure} [list teststaticpkg_8.x $dll $loaded] {
    lsort -index 1 [info loaded {}]
} [lsort -index 1 [list {{} Double} {{} More} {{} Another} {{} Test} [list [file join $testDir pkga$ext] Pkga] [list [file join $testDir pkgb$ext] Pkgb] {*}$alreadyLoaded]]
test load-8.3b {TclGetLoadedPackages procedure} [list teststaticpkg_8.x $dll $loaded] {
    lsort -index 1 [info loaded child]
} [lsort -index 1 [list {{} Test} [list [file join $testDir pkgb$ext] Pkgb]]]
test load-8.4 {TclGetLoadedPackages procedure} [list teststaticpkg_8.x $dll $loaded] {
    load [file join $testDir pkgb$ext] pkgb
    list [lsort -index 1 [info loaded {}]] [lsort [info commands pkgb_*]]
} [list [lsort -index 1 [concat [list [list [file join $testDir pkgb$ext] Pkgb] {{} Double} {{} More} {{} Another} {{} Test} [list [file join $testDir pkga$ext] Pkga]] $alreadyLoaded]] {pkgb_demo pkgb_sub pkgb_unsafe}]
interp delete child

test load-9.1 {Tcl_StaticPackage, load already-loaded package into another interp} \
    -constraints {teststaticpkg} \
    -setup {
	interp create child1
	interp create child2
	load {} Tcltest child1
	load {} Tcltest child2
    } \
    -body {
	child1 eval { teststaticpkg Loadninepointone 0 1 }
	child2 eval { teststaticpkg Loadninepointone 0 1 }
	list \
	    [child1 eval { info loaded {} }] \
	    [child2 eval { info loaded {} }]
    } \
    -match glob -result {{{{} Loadninepointone} {* Tcltest}} {{{} Loadninepointone} {* Tcltest}}} \
    -cleanup { interp delete child1 ; interp delete child2 }

test load-10.1 {load from vfs} \
    -constraints [list $dll $loaded testsimplefilesystem] \
    -setup {set dir [pwd]; cd $testDir; testsimplefilesystem 1} \
    -body {list [catch {load simplefs:/pkgd$ext pkgd} msg] $msg} \
    -result {0 {}} \
    -cleanup {testsimplefilesystem 0; cd $dir; unset dir}

test load-11.1 {Load TclOO extension using Stubs (Bug [f51efe99a7])} \
	[list $dll $loaded] {
    load [file join $testDir pkgooa$ext]
    list [pkgooa_stubsok] [lsort [info commands pkgooa_*]]
} {1 pkgooa_stubsok}

# cleanup
unset ext
::tcltest::cleanupTests
return

# Local Variables:
# mode: tcl
# End: