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# Commands covered: none (tests environment variable implementation)
#
# 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) 1991-1993 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.
if {"::tcltest" ni [namespace children]} {
package require tcltest 2.5
namespace import -force ::tcltest::*
}
package require tcltests
# [exec] is required here to see the actual environment received by child
# processes.
proc getenv {} {
global printenvScript
catch {exec [interpreter] $printenvScript} out
if {$out eq "child process exited abnormally"} {
set out {}
}
return $out
}
proc envrestore {} {
# Restore the environment variables at the end of the test.
global env
variable env2
foreach name [array names env] {
unset env($name)
}
array set env $env2
return
}
proc envprep {} {
# Save the current environment variables at the start of the test.
global env
variable keep
variable env2
set env2 [array get env]
foreach name [array names env] {
# Keep some environment variables that support operation of the tcltest
# package.
if {[string toupper $name] ni [string toupper $keep]} {
unset env($name)
}
}
return
}
proc encodingrestore {} {
variable sysenc
encoding system $sysenc
return
}
proc encodingswitch encoding {
variable sysenc
# Need to run [getenv] in known encoding, so save the current one here...
set sysenc [encoding system]
encoding system $encoding
return
}
proc setup1 {} {
global env
envprep
encodingswitch iso8859-1
}
proc setup2 {} {
global env
setup1
set env(NAME1) {test string}
set env(NAME2) {new value}
set env(XYZZY) {garbage}
}
proc cleanup1 {} {
encodingrestore
envrestore
}
variable keep {
TCL_LIBRARY PATH LD_LIBRARY_PATH LIBPATH PURE_PROG_NAME DISPLAY
SHLIB_PATH SYSTEMDRIVE SYSTEMROOT DYLD_LIBRARY_PATH DYLD_FRAMEWORK_PATH
DYLD_NEW_LOCAL_SHARED_REGIONS DYLD_NO_FIX_PREBINDING MSYSTEM
__CF_USER_TEXT_ENCODING SECURITYSESSIONID LANG WINDIR TERM
CommonProgramFiles CommonProgramFiles(x86) ProgramFiles
ProgramFiles(x86) CommonProgramW6432 ProgramW6432
WINECONFIGDIR WINEDATADIR WINEDLLDIR0 WINEHOMEDIR PROCESSOR_ARCHITECTURE
}
variable printenvScript [makeFile [string map [list @keep@ [list $keep]] {
encoding system iso8859-1
proc lrem {listname name} {
upvar $listname list
set i [lsearch -nocase $list $name]
if {$i >= 0} {
set list [lreplace $list $i $i]
}
return $list
}
proc mangle s {
regsub -all {\[|\\|\]} $s {\\&} s
regsub -all "\[\u0000-\u001f\u007f-\uffff\]" $s {[manglechar {&}]} s
return [subst -novariables $s]
}
proc manglechar c {
return [format {\u%04x} [scan $c %c]]
}
set names [lsort [array names env]]
if {$tcl_platform(platform) eq "windows"} {
lrem names HOME
lrem names COMSPEC
lrem names ComSpec
lrem names ""
}
foreach name @keep@ {
lrem names $name
}
foreach p $names {
puts [mangle $p]=[mangle $env($p)]
}
exit
}] printenv]
test env-1.1 {propagation of env values to child interpreters} -setup {
catch {interp delete child}
catch {unset env(test)}
} -body {
interp create child
set env(test) garbage
child eval {set env(test)}
} -cleanup {
interp delete child
unset env(test)
} -result {garbage}
# This one crashed on Solaris under Tcl8.0, so we only want to make sure it
# runs.
test env-1.2 {lappend to env value} -setup {
catch {unset env(test)}
} -body {
set env(test) aaaaaaaaaaaaaaaa
append env(test) bbbbbbbbbbbbbb
unset env(test)
}
test env-1.3 {reflection of env by "array names"} -setup {
catch {interp delete child}
catch {unset env(test)}
} -body {
interp create child
child eval {set env(test) garbage}
expr {"test" in [array names env]}
} -cleanup {
interp delete child
catch {unset env(test)}
} -result 1
test env-2.1 {
adding environment variables
} -constraints exec -setup setup1 -body {
getenv
} -cleanup cleanup1 -result {}
test env-2.2 {
adding environment variables
} -constraints exec -setup setup1 -body {
set env(NAME1) "test string"
getenv
} -cleanup cleanup1 -result {NAME1=test string}
test env-2.3 {adding environment variables} -constraints exec -setup {
setup1
set env(NAME1) "test string"
} -body {
set env(NAME2) "more"
getenv
} -cleanup cleanup1 -result {NAME1=test string
NAME2=more}
test env-2.4 {
adding environment variables
} -constraints exec -setup {
setup1
set env(NAME1) "test string"
set env(NAME2) "more"
} -body {
set env(XYZZY) "garbage"
getenv
} -cleanup { cleanup1
} -result {NAME1=test string
NAME2=more
XYZZY=garbage}
test env-2.5 {different encoding (wide chars)} -constraints {win exec} -setup {
# be sure set of (unicode) environment occurs if single-byte encoding is used:
encodingswitch cp1252
# german (cp1252) and russian (cp1251) characters together encoded as utf-8:
set val 2d2dc3a4c3b6c3bcc39f2dd182d0b5d181d1822d2d
set env(XYZZY) [encoding convertfrom utf-8 [binary decode hex $val]]
# now switch to utf-8 (to see correct values from test):
encoding system utf-8
} -body {
exec [interpreter] << [string map [list \$val $val] {
encoding system utf-8; fconfigure stdout -encoding utf-8
set test [encoding convertfrom utf-8 [binary decode hex $val]]
puts "[expr {$env(XYZZY) eq $test}] \ngot:\t\
$env(XYZZY) ([binary encode hex [encoding convertto $env(XYZZY)]]) \nexp:\t\
$test ([binary encode hex [encoding convertto $test]])"
}]
} -cleanup {
encodingrestore
unset -nocomplain val f env(XYZZY)
} -match glob -result {1 *}
test env-3.1 {
changing environment variables
} -constraints exec -setup setup2 -body {
set result [getenv]
unset env(NAME2)
set result
} -cleanup {
cleanup1
} -result {NAME1=test string
NAME2=new value
XYZZY=garbage}
test env-4.1 {
unsetting environment variables
} -constraints exec -setup setup2 -body {
unset -nocomplain env(NAME2)
getenv
} -cleanup cleanup1 -result {NAME1=test string
XYZZY=garbage}
# env-4.2 is deleted
test env-4.3 {
setting international environment variables
} -constraints exec -setup setup1 -body {
set env(\ua7) \ub6
getenv
} -cleanup cleanup1 -result {\u00a7=\u00b6}
test env-4.4 {
changing international environment variables
} -constraints exec -setup setup1 -body {
set env(\ua7) \ua7
getenv
} -cleanup cleanup1 -result {\u00a7=\u00a7}
test env-4.5 {
unsetting international environment variables
} -constraints exec -setup {
setup1
set env(\ua7) \ua7
} -body {
set env(\ub6) \ua7
unset env(\ua7)
getenv
} -cleanup cleanup1 -result {\u00b6=\u00a7}
test env-5.0 {
corner cases - set a value, it should exist
} -setup setup1 -body {
set env(temp) a
set env(temp)
} -cleanup cleanup1 -result a
test env-5.1 {
corner cases - remove one elem at a time
} -setup setup1 -body {
# When no environment variables exist, the env var will contain no
# entries. The "array names" call synchs up the C-level environ array with
# the Tcl level env array. Make sure an empty Tcl array is created.
foreach e [array names env] {
unset env($e)
}
array size env
} -cleanup cleanup1 -result 0
test env-5.2 {corner cases - unset the env array} -setup {
interp create i
} -body {
# Unsetting a variable in an interp detaches the C-level traces from the
# Tcl "env" variable.
i eval {
unset env
set env(THIS_SHOULDNT_EXIST) a
}
info exists env(THIS_SHOULDNT_EXIST)
} -cleanup {
interp delete i
} -result {0}
test env-5.3 {corner cases: unset the env in parent should unset child} -setup {
setup1
interp create i
} -body {
# Variables deleted in a parent interp should be deleted in child interp
# too.
i eval {set env(THIS_SHOULD_EXIST) a}
set result [set env(THIS_SHOULD_EXIST)]
unset env(THIS_SHOULD_EXIST)
lappend result [i eval {catch {set env(THIS_SHOULD_EXIST)}}]
} -cleanup {
cleanup1
interp delete i
} -result {a 1}
test env-5.4 {corner cases - unset the env array} -setup {
setup1
interp create i
} -body {
# The info exists command should be in synch with the env array.
# Know Bug: 1737
i eval {set env(THIS_SHOULD_EXIST) a}
set result [info exists env(THIS_SHOULD_EXIST)]
lappend result [set env(THIS_SHOULD_EXIST)]
lappend result [info exists env(THIS_SHOULD_EXIST)]
} -cleanup {
cleanup1
interp delete i
} -result {1 a 1}
test env-5.5 {
corner cases - cannot have null entries on Windows
} -constraints win -body {
set env() a
catch {set env()}
} -cleanup cleanup1 -result 1
test env-6.1 {corner cases - add lots of env variables} -setup setup1 -body {
set size [array size env]
for {set i 0} {$i < 100} {incr i} {
set env(BOGUS$i) $i
}
expr {[array size env] - $size}
} -cleanup cleanup1 -result 100
test env-7.1 {[219226]: whole env array should not be unset by read} -body {
set n [array size env]
set s [array startsearch env]
while {[array anymore env $s]} {
array nextelement env $s
incr n -1
}
array donesearch env $s
return $n
} -result 0
test env-7.2 {
[219226]: links to env elements should not be removed by read
} -setup setup1 -body {
apply {{} {
set ::env(test7_2) ok
upvar env(test7_2) elem
set ::env(PATH)
return $elem
}}
} -cleanup cleanup1 -result ok
test env-7.3 {
[9b4702]: testing existence of env(some_thing) should not destroy trace
} -setup setup1 -body {
apply {{} {
catch {unset ::env(test7_3)}
proc foo args {
set ::env(test7_3) ok
}
trace add variable ::env(not_yet_existent) write foo
info exists ::env(not_yet_existent)
set ::env(not_yet_existent) "Now I'm here";
return [info exists ::env(test7_3)]
}}
} -cleanup cleanup1 -result 1
test env-8.0 {
memory usage - valgrind does not report reachable memory
} -body {
set res [set env(__DUMMY__) {i'm with dummy}]
unset env(__DUMMY__)
return $res
} -result {i'm with dummy}
# cleanup
rename getenv {}
rename envrestore {}
rename envprep {}
rename encodingrestore {}
rename encodingswitch {}
removeFile $printenvScript
::tcltest::cleanupTests
return
# Local Variables:
# mode: tcl
# End:
|