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1 | #!./perl -w |
2 | |
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3 | BEGIN { |
4 | # We're not going to chdir() into 't' because we don't know if |
5 | # chdir() works! Instead, we'll hedge our bets and put both |
6 | # possibilities into @INC. |
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7 | @INC = qw(t . lib ../lib); |
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8 | } |
9 | |
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10 | use Config; |
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11 | require "test.pl"; |
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12 | plan(tests => 31); |
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13 | |
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14 | my $IsVMS = $^O eq 'VMS'; |
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15 | |
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16 | my ($saved_sys_login); |
17 | BEGIN { |
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18 | $saved_sys_login = $ENV{'SYS$LOGIN'} if $^O eq 'VMS' |
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19 | } |
20 | END { |
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21 | $ENV{'SYS$LOGIN'} = $saved_sys_login if $^O eq 'VMS'; |
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22 | } |
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23 | |
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24 | # Might be a little early in the testing process to start using these, |
25 | # but I can't think of a way to write this test without them. |
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26 | use File::Spec::Functions qw(:DEFAULT splitdir rel2abs splitpath); |
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27 | |
28 | # Can't use Cwd::abs_path() because it has different ideas about |
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29 | # path separators than File::Spec. |
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30 | sub abs_path { |
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31 | $IsVMS ? uc(rel2abs(curdir)) : rel2abs(curdir); |
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32 | } |
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33 | |
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34 | my $Cwd = abs_path; |
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35 | |
36 | # Let's get to a known position |
37 | SKIP: { |
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38 | my ($vol,$dir) = splitpath(abs_path,1); |
39 | skip("Already in t/", 2) if (splitdir($dir))[-1] eq ($IsVMS ? 'T' : 't'); |
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40 | |
41 | ok( chdir('t'), 'chdir("t")'); |
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42 | is( abs_path, catdir($Cwd, 't'), ' abs_path() agrees' ); |
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43 | } |
44 | |
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45 | $Cwd = abs_path; |
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46 | |
47 | # The environment variables chdir() pays attention to. |
48 | my @magic_envs = qw(HOME LOGDIR SYS$LOGIN); |
49 | |
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50 | sub check_env { |
51 | my($key) = @_; |
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52 | |
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53 | # Make sure $ENV{'SYS$LOGIN'} is only honored on VMS. |
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54 | if( $key eq 'SYS$LOGIN' && !$IsVMS ) { |
55 | ok( !chdir(), "chdir() on $^O ignores only \$ENV{$key} set" ); |
56 | is( abs_path, $Cwd, ' abs_path() did not change' ); |
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57 | pass( " no need to test SYS\$LOGIN on $^O" ) for 1..7; |
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58 | } |
59 | else { |
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60 | ok( chdir(), "chdir() w/ only \$ENV{$key} set" ); |
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61 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
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62 | chdir($Cwd); |
63 | is( abs_path, $Cwd, ' and back again' ); |
64 | |
65 | my $warning = ''; |
66 | local $SIG{__WARN__} = sub { $warning .= join '', @_ }; |
67 | |
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68 | |
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69 | # Check the deprecated chdir(undef) feature. |
70 | #line 60 |
71 | ok( chdir(undef), "chdir(undef) w/ only \$ENV{$key} set" ); |
72 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
73 | is( $warning, <<WARNING, ' got uninit & deprecation warning' ); |
74 | Use of uninitialized value in chdir at $0 line 60. |
75 | Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 60. |
76 | WARNING |
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77 | |
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78 | chdir($Cwd); |
79 | |
80 | # Ditto chdir(''). |
81 | $warning = ''; |
82 | #line 72 |
83 | ok( chdir(''), "chdir('') w/ only \$ENV{$key} set" ); |
84 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
85 | is( $warning, <<WARNING, ' got deprecation warning' ); |
86 | Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 72. |
87 | WARNING |
88 | |
89 | chdir($Cwd); |
90 | } |
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91 | } |
92 | |
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93 | sub clean_env { |
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94 | foreach (@magic_envs) { |
95 | delete $ENV{$_} unless $IsVMS && $_ eq 'HOME' && !$Config{'d_setenv'}; |
96 | } |
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97 | # The following means we won't really be testing for non-existence, |
98 | # but in Perl we can only delete from the process table, not the job |
99 | # table. |
100 | $ENV{'SYS$LOGIN'} = '' if $IsVMS; |
101 | } |
102 | |
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103 | foreach my $key (@magic_envs) { |
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104 | # We're going to be using undefs a lot here. |
105 | no warnings 'uninitialized'; |
106 | |
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107 | clean_env; |
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108 | $ENV{$key} = catdir $Cwd, ($IsVMS ? 'OP' : 'op'); |
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109 | |
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110 | check_env($key); |
111 | } |
112 | |
113 | { |
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114 | clean_env; |
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115 | if ($IsVMS && !$Config{'d_setenv'}) { |
116 | pass("Can't reset HOME, so chdir() test meaningless"); |
117 | } else { |
118 | ok( !chdir(), 'chdir() w/o any ENV set' ); |
119 | } |
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120 | is( abs_path, $Cwd, ' abs_path() agrees' ); |
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121 | } |