summaryrefslogtreecommitdiffstats
path: root/tests/env.test
blob: 6cf4ea72b3fa1d10b56b4a122346cf620ce39210 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
# 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.
#
# RCS: @(#) $Id: env.test,v 1.8 1999/07/08 03:35:18 rjohnson Exp $

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

#
# 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)
} {}
test env-1.3 {reflection of env by "array names"} {
    catch {interp delete child}
    catch {unset env(test)}
    interp create child
    child eval {set env(test) garbage}
    set names [array names env]
    interp delete child
    set ix [lsearch $names test]
    catch {unset env(test)}
    expr {$ix >= 0}
} {1}


# Some tests require the "exec" command.
# Skip them if exec is not defined.
set ::tcltest::testConstraints(execCommandExists) [expr {[info commands exec] != ""}]

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 PURE_PROG_NAME DISPLAY SHLIB_PATH } {
	lrem names $name
    }
    foreach p $names {
	puts "$p=$env($p)"
    }
}
close $f
	
proc getenv {} {
    global printenv tcltest
    catch {exec $::tcltest::tcltest printenv} out
    if {$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 DISPLAY SHLIB_PATH} {
  if {[info exists env2($name)]} {
     set env($name) $env2($name);
  }
}

test env-2.1 {adding environment variables} {execCommandExists} {
    getenv
} {}

set env(NAME1) "test string"
test env-2.2 {adding environment variables} {execCommandExists} {
    getenv
} {NAME1=test string}

set env(NAME2) "more"
test env-2.3 {adding environment variables} {execCommandExists} {
    getenv
} {NAME1=test string
NAME2=more}

set env(XYZZY) "garbage"
test env-2.4 {adding environment variables} {execCommandExists} {
    getenv
} {NAME1=test string
NAME2=more
XYZZY=garbage}

set env(NAME2) "new value"
test env-3.1 {changing environment variables} {execCommandExists} {
    set result [getenv]
    unset env(NAME2)
    set result
} {NAME1=test string
NAME2=new value
XYZZY=garbage}

test env-4.1 {unsetting environment variables} {execCommandExists} {
    set result [getenv]
    unset env(NAME1)
    set result
} {NAME1=test string
XYZZY=garbage}

test env-4.2 {unsetting environment variables} {execCommandExists} {
    set result [getenv]
    unset env(XYZZY)
    set result
} {XYZZY=garbage}

test env-4.3 {setting international environment variables} {execCommandExists} {
    set env(\ua7) \ub6
    getenv
} "\ua7=\ub6"
test env-4.4 {changing international environment variables} {execCommandExists} {
    set env(\ua7) \ua7
    getenv
} "\ua7=\ua7"
test env-4.5 {unsetting international environment variables} {execCommandExists} {
    set env(\ub6) \ua7
    unset env(\ua7)
    set result [getenv]
    unset env(\ub6)
    set result
} "\ub6=\ua7"

test env-5.0 {corner cases - set a value, it should exist} {} {
    if {[llength [array names env]] == 0} {
	error "env array unexpectedly empty"
    }
    set temp [lindex [array names env] end]
    set x $env($temp)
    set env($temp) a
    set result [set env($temp)]
    set env($temp) $x
    set result
} {a}
test env-5.1 {corner cases - remove one elem at a time} {} {
    # 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.

    set x [array get env]
    foreach e [array names env] {
	unset env($e)
    }
    set result [catch {array names env}]
    array set env $x
    set result
} {0}
test env-5.2 {corner cases - unset the env array} {} {
    # Unsetting a variable in an interp detaches the C-level
    # traces from the Tcl "env" variable.

    interp create i 
    i eval { unset env }
    i eval { set env(THIS_SHOULDNT_EXIST) a}
    set result [info exist env(THIS_SHOULDNT_EXIST)]
    interp delete i
    set result
} {0}
test env-5.3 {corner cases - unset the env in master should unset child} {} {
    # Variables deleted in a master interp should be deleted in
    # child interp too.

    interp create i 
    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)}}]
    interp delete i
    set result
} {a 1}
test env-5.4 {corner cases - unset the env array} {knownBug} {
    # The info exist command should be in synch with the env array.
    # Know Bug: 1737

    interp create i 
    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)]
    interp delete i
    set result
} {1 a 1}
test env-5.5 {corner cases - cannot have null entries on Windows} {pcOnly} {
    set env() a
    catch {set env()}
} {1}


# 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)
}

# cleanup
file delete printenv
::tcltest::cleanupTests
return