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Add two deprecation warnings:
[perl5.git] / t / op / chdir.t
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1#!./perl -w
2
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3BEGIN {
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.
69026470 7 @INC = qw(t . lib ../lib);
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8}
9
58277c14 10use Config;
69026470 11require "test.pl";
73bf7cf9 12plan(tests => 48);
8ea155d1 13
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14my $IsVMS = $^O eq 'VMS';
15my $IsMacOS = $^O eq 'MacOS';
2d6b1654 16
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17# For an op regression test, I don't want to rely on "use constant" working.
18my $has_fchdir = ($Config{d_fchdir} || "") eq "define";
19
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20# Might be a little early in the testing process to start using these,
21# but I can't think of a way to write this test without them.
58277c14 22use File::Spec::Functions qw(:DEFAULT splitdir rel2abs splitpath);
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23
24# Can't use Cwd::abs_path() because it has different ideas about
d6cdadd4 25# path separators than File::Spec.
d9c93211 26sub abs_path {
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27 my $d = rel2abs(curdir);
28
29 $d = uc($d) if $IsVMS;
30 $d = lc($d) if $^O =~ /^uwin/;
31 $d;
d9c93211 32}
8ea155d1 33
35ae6b54 34my $Cwd = abs_path;
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35
36# Let's get to a known position
37SKIP: {
58277c14 38 my ($vol,$dir) = splitpath(abs_path,1);
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39 my $test_dir = $IsVMS ? 'T' : 't';
40 skip("Already in t/", 2) if (splitdir($dir))[-1] eq $test_dir;
8ea155d1 41
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42 ok( chdir($test_dir), 'chdir($test_dir)');
43 is( abs_path, catdir($Cwd, $test_dir), ' abs_path() agrees' );
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44}
45
35ae6b54 46$Cwd = abs_path;
8ea155d1 47
c4aca7d0 48SKIP: {
73bf7cf9 49 skip("no fchdir", 16) unless $has_fchdir;
55adfc3e 50 my $has_dirfd = ($Config{d_dirfd} || "") eq "define";
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51 ok(opendir(my $dh, "."), "opendir .");
52 ok(open(my $fh, "<", "op"), "open op");
53 ok(chdir($fh), "fchdir op");
54 ok(-f "chdir.t", "verify that we are in op");
55adfc3e 55 if ($has_dirfd) {
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56 ok(chdir($dh), "fchdir back");
57 }
58 else {
59 eval { chdir($dh); };
60 like($@, qr/^The dirfd function is unimplemented at/, "dirfd is unimplemented");
73bf7cf9 61 chdir ".." or die $!;
ac49b025 62 }
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63
64 # same with bareword file handles
65 no warnings 'once';
66 *DH = $dh;
67 *FH = $fh;
68 ok(chdir FH, "fchdir op bareword");
69 ok(-f "chdir.t", "verify that we are in op");
55adfc3e 70 if ($has_dirfd) {
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71 ok(chdir DH, "fchdir back bareword");
72 }
73 else {
74 eval { chdir(DH); };
75 like($@, qr/^The dirfd function is unimplemented at/, "dirfd is unimplemented");
73bf7cf9 76 chdir ".." or die $!;
d4ac975e 77 }
c4aca7d0 78 ok(-d "op", "verify that we are back");
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79
80 # And now the ambiguous case
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81 {
82 no warnings qw<io deprecated>;
83 ok(opendir(H, "op"), "opendir op") or diag $!;
84 ok(open(H, "<", "base"), "open base") or diag $!;
85 }
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86 if (($Config{d_dirfd} || "") eq "define") {
87 ok(chdir(H), "fchdir to op");
88 ok(-f "chdir.t", "verify that we are in 'op'");
89 chdir ".." or die $!;
90 }
91 else {
92 eval { chdir(H); };
93 like($@, qr/^The dirfd function is unimplemented at/,
94 "dirfd is unimplemented");
95 SKIP: {
96 skip("dirfd is unimplemented");
97 }
98 }
99 ok(closedir(H), "closedir");
100 ok(chdir(H), "fchdir to base");
101 ok(-f "cond.t", "verify that we are in 'base'");
102 chdir ".." or die $!;
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103}
104
105SKIP: {
55adfc3e 106 skip("has fchdir", 1) if $has_fchdir;
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107 opendir(my $dh, "op");
108 eval { chdir($dh); };
109 like($@, qr/^The fchdir function is unimplemented at/, "fchdir is unimplemented");
110}
111
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112# The environment variables chdir() pays attention to.
113my @magic_envs = qw(HOME LOGDIR SYS$LOGIN);
114
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115sub check_env {
116 my($key) = @_;
8ea155d1 117
89eee1ed 118 # Make sure $ENV{'SYS$LOGIN'} is only honored on VMS.
dc459aad 119 if( $key eq 'SYS$LOGIN' && !$IsVMS && !$IsMacOS ) {
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120 ok( !chdir(), "chdir() on $^O ignores only \$ENV{$key} set" );
121 is( abs_path, $Cwd, ' abs_path() did not change' );
d6cdadd4 122 pass( " no need to test SYS\$LOGIN on $^O" ) for 1..7;
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123 }
124 else {
89eee1ed 125 ok( chdir(), "chdir() w/ only \$ENV{$key} set" );
8ea155d1 126 is( abs_path, $ENV{$key}, ' abs_path() agrees' );
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127 chdir($Cwd);
128 is( abs_path, $Cwd, ' and back again' );
129
130 my $warning = '';
131 local $SIG{__WARN__} = sub { $warning .= join '', @_ };
132
8ea155d1 133
35ae6b54 134 # Check the deprecated chdir(undef) feature.
fb7a80d6 135#line 64
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136 ok( chdir(undef), "chdir(undef) w/ only \$ENV{$key} set" );
137 is( abs_path, $ENV{$key}, ' abs_path() agrees' );
138 is( $warning, <<WARNING, ' got uninit & deprecation warning' );
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139Use of uninitialized value in chdir at $0 line 64.
140Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 64.
35ae6b54 141WARNING
8ea155d1 142
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143 chdir($Cwd);
144
145 # Ditto chdir('').
146 $warning = '';
fb7a80d6 147#line 76
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148 ok( chdir(''), "chdir('') w/ only \$ENV{$key} set" );
149 is( abs_path, $ENV{$key}, ' abs_path() agrees' );
150 is( $warning, <<WARNING, ' got deprecation warning' );
fb7a80d6 151Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 76.
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152WARNING
153
154 chdir($Cwd);
155 }
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156}
157
fb7a80d6 158my %Saved_Env = ();
d6cdadd4 159sub clean_env {
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160 foreach my $env (@magic_envs) {
161 $Saved_Env{$env} = $ENV{$env};
162
163 # Can't actually delete SYS$ stuff on VMS.
164 next if $IsVMS && $env eq 'SYS$LOGIN';
165 next if $IsVMS && $env eq 'HOME' && !$Config{'d_setenv'};
166
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167 unless ($IsMacOS) { # ENV on MacOS is "special" :-)
168 # On VMS, %ENV is many layered.
169 delete $ENV{$env} while exists $ENV{$env};
170 }
58277c14 171 }
fb7a80d6 172
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173 # The following means we won't really be testing for non-existence,
174 # but in Perl we can only delete from the process table, not the job
175 # table.
176 $ENV{'SYS$LOGIN'} = '' if $IsVMS;
177}
178
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179END {
180 no warnings 'uninitialized';
181
182 # Restore the environment for VMS (and doesn't hurt for anyone else)
183 @ENV{@magic_envs} = @Saved_Env{@magic_envs};
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184
185 # On VMS this must be deleted or process table is wrong on exit
186 # when this script is run interactively.
187 delete $ENV{'SYS$LOGIN'} if $IsVMS;
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188}
189
190
35ae6b54 191foreach my $key (@magic_envs) {
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192 # We're going to be using undefs a lot here.
193 no warnings 'uninitialized';
194
d6cdadd4 195 clean_env;
9d4c144b 196 $ENV{$key} = catdir $Cwd, ($IsVMS ? 'OP' : 'op');
58277c14 197
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198 check_env($key);
199}
200
201{
d6cdadd4 202 clean_env;
dc459aad 203 if (($IsVMS || $IsMacOS) && !$Config{'d_setenv'}) {
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204 pass("Can't reset HOME, so chdir() test meaningless");
205 } else {
206 ok( !chdir(), 'chdir() w/o any ENV set' );
207 }
35ae6b54 208 is( abs_path, $Cwd, ' abs_path() agrees' );
8ea155d1 209}