summaryrefslogtreecommitdiff
path: root/tcl/tests/env.test
blob: cecb2ba28e4b7edb919926f1b48f9d12203c69d1 (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
# 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.
#
# RCS: @(#) $Id$

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 SHLIB_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 SHLIB_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