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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 | # Might be a little early in the testing process to start using these, |
17 | # but I can't think of a way to write this test without them. |
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18 | use File::Spec::Functions qw(:DEFAULT splitdir rel2abs splitpath); |
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19 | |
20 | # Can't use Cwd::abs_path() because it has different ideas about |
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21 | # path separators than File::Spec. |
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22 | sub abs_path { |
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23 | $IsVMS ? uc(rel2abs(curdir)) : rel2abs(curdir); |
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24 | } |
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25 | |
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26 | my $Cwd = abs_path; |
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27 | |
28 | # Let's get to a known position |
29 | SKIP: { |
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30 | my ($vol,$dir) = splitpath(abs_path,1); |
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31 | my $test_dir = $IsVMS ? 'T' : 't'; |
32 | skip("Already in t/", 2) if (splitdir($dir))[-1] eq $test_dir; |
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33 | |
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34 | ok( chdir($test_dir), 'chdir($test_dir)'); |
35 | is( abs_path, catdir($Cwd, $test_dir), ' abs_path() agrees' ); |
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36 | } |
37 | |
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38 | $Cwd = abs_path; |
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39 | |
40 | # The environment variables chdir() pays attention to. |
41 | my @magic_envs = qw(HOME LOGDIR SYS$LOGIN); |
42 | |
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43 | sub check_env { |
44 | my($key) = @_; |
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45 | |
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46 | # Make sure $ENV{'SYS$LOGIN'} is only honored on VMS. |
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47 | if( $key eq 'SYS$LOGIN' && !$IsVMS ) { |
48 | ok( !chdir(), "chdir() on $^O ignores only \$ENV{$key} set" ); |
49 | is( abs_path, $Cwd, ' abs_path() did not change' ); |
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50 | pass( " no need to test SYS\$LOGIN on $^O" ) for 1..7; |
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51 | } |
52 | else { |
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53 | ok( chdir(), "chdir() w/ only \$ENV{$key} set" ); |
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54 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
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55 | chdir($Cwd); |
56 | is( abs_path, $Cwd, ' and back again' ); |
57 | |
58 | my $warning = ''; |
59 | local $SIG{__WARN__} = sub { $warning .= join '', @_ }; |
60 | |
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61 | |
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62 | # Check the deprecated chdir(undef) feature. |
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63 | #line 64 |
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64 | ok( chdir(undef), "chdir(undef) w/ only \$ENV{$key} set" ); |
65 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
66 | is( $warning, <<WARNING, ' got uninit & deprecation warning' ); |
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67 | Use of uninitialized value in chdir at $0 line 64. |
68 | Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 64. |
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69 | WARNING |
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70 | |
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71 | chdir($Cwd); |
72 | |
73 | # Ditto chdir(''). |
74 | $warning = ''; |
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75 | #line 76 |
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76 | ok( chdir(''), "chdir('') w/ only \$ENV{$key} set" ); |
77 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
78 | is( $warning, <<WARNING, ' got deprecation warning' ); |
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79 | Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 76. |
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80 | WARNING |
81 | |
82 | chdir($Cwd); |
83 | } |
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84 | } |
85 | |
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86 | my %Saved_Env = (); |
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87 | sub clean_env { |
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88 | foreach my $env (@magic_envs) { |
89 | $Saved_Env{$env} = $ENV{$env}; |
90 | |
91 | # Can't actually delete SYS$ stuff on VMS. |
92 | next if $IsVMS && $env eq 'SYS$LOGIN'; |
93 | next if $IsVMS && $env eq 'HOME' && !$Config{'d_setenv'}; |
94 | |
95 | # On VMS, %ENV is many layered. |
96 | delete $ENV{$env} while exists $ENV{$env}; |
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97 | } |
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98 | |
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99 | # The following means we won't really be testing for non-existence, |
100 | # but in Perl we can only delete from the process table, not the job |
101 | # table. |
102 | $ENV{'SYS$LOGIN'} = '' if $IsVMS; |
103 | } |
104 | |
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105 | END { |
106 | no warnings 'uninitialized'; |
107 | |
108 | # Restore the environment for VMS (and doesn't hurt for anyone else) |
109 | @ENV{@magic_envs} = @Saved_Env{@magic_envs}; |
110 | } |
111 | |
112 | |
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113 | foreach my $key (@magic_envs) { |
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114 | # We're going to be using undefs a lot here. |
115 | no warnings 'uninitialized'; |
116 | |
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117 | clean_env; |
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118 | $ENV{$key} = catdir $Cwd, ($IsVMS ? 'OP' : 'op'); |
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119 | |
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120 | check_env($key); |
121 | } |
122 | |
123 | { |
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124 | clean_env; |
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125 | if ($IsVMS && !$Config{'d_setenv'}) { |
126 | pass("Can't reset HOME, so chdir() test meaningless"); |
127 | } else { |
128 | ok( !chdir(), 'chdir() w/o any ENV set' ); |
129 | } |
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130 | is( abs_path, $Cwd, ' abs_path() agrees' ); |
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131 | } |