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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.
#
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# SCCS: @(#) env.test 1.14 97/10/31 17:00:03
if {[string compare test [info procs test]] == 1} then {source defs}
#
# These tests will run on any platform (and indeed crashed
# on the Mac). So put them before you test for the existance
# of exec.
#
test env-1.1 {propagation of env values to child interpreters} {
catch {interp delete child}
catch {unset env(test)}
interp create child
set env(test) garbage
set return [child eval {set env(test)}]
interp delete child
unset env(test)
set return
} {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} {
catch {unset env(test)}
set env(test) aaaaaaaaaaaaaaaa
append env(test) bbbbbbbbbbbbbb
unset env(test)
} {}
if {[info commands exec] == ""} {
puts "exec not implemented for this machine"
return
}
if {$tcl_platform(os) == "Win32s"} {
puts "Cannot run multiple copies of tcl at the same time under Win32s"
return
}
set f [open printenv w]
puts $f {
proc lrem {listname name} {
upvar $listname list
set i [lsearch $list $name]
if {$i >= 0} {
set list [lreplace $list $i $i]
}
return $list
}
set names [lsort [array names env]]
if {$tcl_platform(platform) == "windows"} {
lrem names HOME
lrem names COMSPEC
lrem names ComSpec
lrem names ""
}
foreach name {TCL_LIBRARY PATH LD_LIBRARY_PATH} {
lrem names $name
}
foreach p $names {
puts "$p=$env($p)"
}
}
close $f
proc getenv {} {
global printenv tcltest
catch {exec $tcltest printenv} out
if {$out == "child process exited abnormally"} {
set out {}
}
return $out
}
# Save the current environment variables at the start of the test.
foreach name [array names env] {
set env2($name) $env($name)
unset env($name)
}
# Added the following lines so that child tcltest can actually find its
# library if the initial tcltest is run from a non-standard place.
# ('saved' env vars)
foreach name {TCL_LIBRARY PATH LD_LIBRARY_PATH} {
if {[info exists env2($name)]} {
set env($name) $env2($name);
}
}
test env-2.1 {adding environment variables} {
getenv
} {}
set env(NAME1) "test string"
test env-2.2 {adding environment variables} {
getenv
} {NAME1=test string}
set env(NAME2) "more"
test env-2.3 {adding environment variables} {
getenv
} {NAME1=test string
NAME2=more}
set env(XYZZY) "garbage"
test env-2.4 {adding environment variables} {
getenv
} {NAME1=test string
NAME2=more
XYZZY=garbage}
set env(NAME2) "new value"
test env-3.1 {changing environment variables} {
getenv
} {NAME1=test string
NAME2=new value
XYZZY=garbage}
unset env(NAME2)
test env-4.1 {unsetting environment variables} {
getenv
} {NAME1=test string
XYZZY=garbage}
unset env(NAME1)
test env-4.2 {unsetting environment variables} {
getenv
} {XYZZY=garbage}
# Restore the environment variables at the end of the test.
foreach name [array names env] {
unset env($name)
}
foreach name [array names env2] {
set env($name) $env2($name)
}
file delete printenv
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