123 lines
3.7 KiB
Plaintext
123 lines
3.7 KiB
Plaintext
# Commands covered: none (tests environment variable implementation)
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#
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# This file contains a collection of tests for one or more of the Tcl
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# built-in commands. Sourcing this file into Tcl runs the tests and
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# generates output for errors. No output means no errors were found.
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#
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# Copyright (c) 1991-1993 The Regents of the University of California.
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# All rights reserved.
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#
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# Permission is hereby granted, without written agreement and without
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# license or royalty fees, to use, copy, modify, and distribute this
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# software and its documentation for any purpose, provided that the
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# above copyright notice and the following two paragraphs appear in
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# all copies of this software.
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#
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# IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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# DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
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# OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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# CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#
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# THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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# AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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# ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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# PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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#
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# $Header: /user6/ouster/tcl/tests/RCS/env.test,v 1.7 93/10/14 14:59:14 ouster Exp $ (Berkeley)
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if {[string compare test [info procs test]] == 1} then {source defs}
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# If there is no "printenv" program on this system, then it's just too
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# much trouble to run this test (can't necessarily run csh to get the
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# environment: on some systems it barfs if there isn't a minimum set
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# predefined environment variables. Also, printenv returns a non-zero
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# status on some systems, so read the environment using a procedure
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# that catches errors.
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set printenv {}
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if [info exists env(PATH)] {
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set dirs [split $env(PATH) :]
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} else {
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set dirs {/bin /usr/bin /usr/ucb /usr/local /usr/public /usr/etc}
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}
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foreach i $dirs {
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if [file executable $i/printenv] {
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# The following hack is needed because of weirdness with
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# environment variables in symbolic lines on Apollos (?!#?).
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if ![catch {exec sh -c "cd $i; pwd"} x] {
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set printenv $x/printenv
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} else {
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set printenv $i/printenv
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}
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break
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}
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}
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if {$printenv == ""} {
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puts stdout "Skipping env tests: need \"printenv\" to read environment."
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return ""
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}
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proc getenv {} {
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global printenv
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catch {exec $printenv} out
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if {$out == "child process exited abnormally"} {
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set out {}
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}
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return $out
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}
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# Save the current environment variables at the start of the test.
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foreach name [array names env] {
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set env2($name) $env($name)
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unset env($name)
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}
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test env-1.1 {adding environment variables} {
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getenv
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} {}
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set env(NAME1) "test string"
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test env-1.2 {adding environment variables} {
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getenv
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} {NAME1=test string}
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set env(NAME2) "more"
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test env-1.3 {adding environment variables} {
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getenv
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} {NAME1=test string
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NAME2=more}
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set env(XYZZY) "garbage"
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test env-1.4 {adding environment variables} {
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getenv
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} {NAME1=test string
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NAME2=more
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XYZZY=garbage}
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set env(NAME2) "new value"
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test env-2.1 {changing environment variables} {
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getenv
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} {NAME1=test string
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NAME2=new value
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XYZZY=garbage}
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unset env(NAME2)
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test env-3.1 {unsetting environment variables} {
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getenv
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} {NAME1=test string
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XYZZY=garbage}
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unset env(NAME1)
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test env-3.2 {unsetting environment variables} {
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getenv
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} {XYZZY=garbage}
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# Restore the environment variables at the end of the test.
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foreach name [array names env] {
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unset env($name)
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}
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foreach name [array names env2] {
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set env($name) $env2($name)
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}
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