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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 => 38); |
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13 | |
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14 | my $IsVMS = $^O eq 'VMS'; |
15 | my $IsMacOS = $^O eq 'MacOS'; |
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16 | |
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17 | # Might be a little early in the testing process to start using these, |
18 | # but I can't think of a way to write this test without them. |
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19 | use File::Spec::Functions qw(:DEFAULT splitdir rel2abs splitpath); |
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20 | |
21 | # Can't use Cwd::abs_path() because it has different ideas about |
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22 | # path separators than File::Spec. |
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23 | sub abs_path { |
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24 | my $d = rel2abs(curdir); |
25 | |
26 | $d = uc($d) if $IsVMS; |
27 | $d = lc($d) if $^O =~ /^uwin/; |
28 | $d; |
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29 | } |
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30 | |
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31 | my $Cwd = abs_path; |
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32 | |
33 | # Let's get to a known position |
34 | SKIP: { |
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35 | my ($vol,$dir) = splitpath(abs_path,1); |
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36 | my $test_dir = $IsVMS ? 'T' : 't'; |
37 | skip("Already in t/", 2) if (splitdir($dir))[-1] eq $test_dir; |
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38 | |
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39 | ok( chdir($test_dir), 'chdir($test_dir)'); |
40 | is( abs_path, catdir($Cwd, $test_dir), ' abs_path() agrees' ); |
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41 | } |
42 | |
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43 | $Cwd = abs_path; |
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44 | |
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45 | SKIP: { |
46 | skip("no fchdir", 6) unless ($Config{d_fchdir} || "") eq "define"; |
47 | ok(opendir(my $dh, "."), "opendir ."); |
48 | ok(open(my $fh, "<", "op"), "open op"); |
49 | ok(chdir($fh), "fchdir op"); |
50 | ok(-f "chdir.t", "verify that we are in op"); |
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51 | if (($Config{d_dirfd} || "") eq "define") { |
52 | ok(chdir($dh), "fchdir back"); |
53 | } |
54 | else { |
55 | eval { chdir($dh); }; |
56 | like($@, qr/^The dirfd function is unimplemented at/, "dirfd is unimplemented"); |
57 | chdir ".."; |
58 | } |
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59 | ok(-d "op", "verify that we are back"); |
60 | } |
61 | |
62 | SKIP: { |
63 | skip("has fchdir", 1) if ($Config{d_fchdir} || "") eq "define"; |
64 | opendir(my $dh, "op"); |
65 | eval { chdir($dh); }; |
66 | like($@, qr/^The fchdir function is unimplemented at/, "fchdir is unimplemented"); |
67 | } |
68 | |
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69 | # The environment variables chdir() pays attention to. |
70 | my @magic_envs = qw(HOME LOGDIR SYS$LOGIN); |
71 | |
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72 | sub check_env { |
73 | my($key) = @_; |
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74 | |
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75 | # Make sure $ENV{'SYS$LOGIN'} is only honored on VMS. |
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76 | if( $key eq 'SYS$LOGIN' && !$IsVMS && !$IsMacOS ) { |
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77 | ok( !chdir(), "chdir() on $^O ignores only \$ENV{$key} set" ); |
78 | is( abs_path, $Cwd, ' abs_path() did not change' ); |
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79 | pass( " no need to test SYS\$LOGIN on $^O" ) for 1..7; |
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80 | } |
81 | else { |
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82 | ok( chdir(), "chdir() w/ only \$ENV{$key} set" ); |
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83 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
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84 | chdir($Cwd); |
85 | is( abs_path, $Cwd, ' and back again' ); |
86 | |
87 | my $warning = ''; |
88 | local $SIG{__WARN__} = sub { $warning .= join '', @_ }; |
89 | |
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90 | |
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91 | # Check the deprecated chdir(undef) feature. |
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92 | #line 64 |
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93 | ok( chdir(undef), "chdir(undef) w/ only \$ENV{$key} set" ); |
94 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
95 | is( $warning, <<WARNING, ' got uninit & deprecation warning' ); |
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96 | Use of uninitialized value in chdir at $0 line 64. |
97 | Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 64. |
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98 | WARNING |
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99 | |
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100 | chdir($Cwd); |
101 | |
102 | # Ditto chdir(''). |
103 | $warning = ''; |
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104 | #line 76 |
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105 | ok( chdir(''), "chdir('') w/ only \$ENV{$key} set" ); |
106 | is( abs_path, $ENV{$key}, ' abs_path() agrees' ); |
107 | is( $warning, <<WARNING, ' got deprecation warning' ); |
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108 | Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 76. |
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109 | WARNING |
110 | |
111 | chdir($Cwd); |
112 | } |
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113 | } |
114 | |
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115 | my %Saved_Env = (); |
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116 | sub clean_env { |
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117 | foreach my $env (@magic_envs) { |
118 | $Saved_Env{$env} = $ENV{$env}; |
119 | |
120 | # Can't actually delete SYS$ stuff on VMS. |
121 | next if $IsVMS && $env eq 'SYS$LOGIN'; |
122 | next if $IsVMS && $env eq 'HOME' && !$Config{'d_setenv'}; |
123 | |
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124 | unless ($IsMacOS) { # ENV on MacOS is "special" :-) |
125 | # On VMS, %ENV is many layered. |
126 | delete $ENV{$env} while exists $ENV{$env}; |
127 | } |
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128 | } |
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129 | |
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130 | # The following means we won't really be testing for non-existence, |
131 | # but in Perl we can only delete from the process table, not the job |
132 | # table. |
133 | $ENV{'SYS$LOGIN'} = '' if $IsVMS; |
134 | } |
135 | |
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136 | END { |
137 | no warnings 'uninitialized'; |
138 | |
139 | # Restore the environment for VMS (and doesn't hurt for anyone else) |
140 | @ENV{@magic_envs} = @Saved_Env{@magic_envs}; |
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141 | |
142 | # On VMS this must be deleted or process table is wrong on exit |
143 | # when this script is run interactively. |
144 | delete $ENV{'SYS$LOGIN'} if $IsVMS; |
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145 | } |
146 | |
147 | |
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148 | foreach my $key (@magic_envs) { |
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149 | # We're going to be using undefs a lot here. |
150 | no warnings 'uninitialized'; |
151 | |
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152 | clean_env; |
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153 | $ENV{$key} = catdir $Cwd, ($IsVMS ? 'OP' : 'op'); |
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154 | |
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155 | check_env($key); |
156 | } |
157 | |
158 | { |
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159 | clean_env; |
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160 | if (($IsVMS || $IsMacOS) && !$Config{'d_setenv'}) { |
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161 | pass("Can't reset HOME, so chdir() test meaningless"); |
162 | } else { |
163 | ok( !chdir(), 'chdir() w/o any ENV set' ); |
164 | } |
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165 | is( abs_path, $Cwd, ' abs_path() agrees' ); |
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166 | } |