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108 lines
2.8 KiB
Text
108 lines
2.8 KiB
Text
# 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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# Copyright (c) 1994 Sun Microsystems, Inc.
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#
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# See the file "license.terms" for information on usage and redistribution
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# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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#
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# SCCS: @(#) env.test 1.9 96/02/16 08:55:47
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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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