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.
7 @INC = qw(t . lib ../lib);
14 my $IsVMS = $^O eq 'VMS';
15 my $IsMacOS = $^O eq 'MacOS';
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.
19 use File::Spec::Functions qw(:DEFAULT splitdir rel2abs splitpath);
21 # Can't use Cwd::abs_path() because it has different ideas about
22 # path separators than File::Spec.
24 my $d = rel2abs(curdir);
26 $d = uc($d) if $IsVMS;
27 $d = lc($d) if $^O =~ /^uwin/;
33 # Let's get to a known position
35 my ($vol,$dir) = splitpath(abs_path,1);
36 my $test_dir = $IsVMS ? 'T' : 't';
37 skip("Already in t/", 2) if (splitdir($dir))[-1] eq $test_dir;
39 ok( chdir($test_dir), 'chdir($test_dir)');
40 is( abs_path, catdir($Cwd, $test_dir), ' abs_path() agrees' );
46 skip("no fchdir", 6) unless ($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");
51 ok(chdir($dh), "fchdir back");
52 ok(-d "op", "verify that we are back");
56 skip("has fchdir", 1) if ($Config{d_fchdir} || "") eq "define";
57 opendir(my $dh, "op");
59 like($@, qr/^The fchdir function is unimplemented at/, "fchdir is unimplemented");
62 # The environment variables chdir() pays attention to.
63 my @magic_envs = qw(HOME LOGDIR SYS$LOGIN);
68 # Make sure $ENV{'SYS$LOGIN'} is only honored on VMS.
69 if( $key eq 'SYS$LOGIN' && !$IsVMS && !$IsMacOS ) {
70 ok( !chdir(), "chdir() on $^O ignores only \$ENV{$key} set" );
71 is( abs_path, $Cwd, ' abs_path() did not change' );
72 pass( " no need to test SYS\$LOGIN on $^O" ) for 1..7;
75 ok( chdir(), "chdir() w/ only \$ENV{$key} set" );
76 is( abs_path, $ENV{$key}, ' abs_path() agrees' );
78 is( abs_path, $Cwd, ' and back again' );
81 local $SIG{__WARN__} = sub { $warning .= join '', @_ };
84 # Check the deprecated chdir(undef) feature.
86 ok( chdir(undef), "chdir(undef) w/ only \$ENV{$key} set" );
87 is( abs_path, $ENV{$key}, ' abs_path() agrees' );
88 is( $warning, <<WARNING, ' got uninit & deprecation warning' );
89 Use of uninitialized value in chdir at $0 line 64.
90 Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 64.
98 ok( chdir(''), "chdir('') w/ only \$ENV{$key} set" );
99 is( abs_path, $ENV{$key}, ' abs_path() agrees' );
100 is( $warning, <<WARNING, ' got deprecation warning' );
101 Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 76.
110 foreach my $env (@magic_envs) {
111 $Saved_Env{$env} = $ENV{$env};
113 # Can't actually delete SYS$ stuff on VMS.
114 next if $IsVMS && $env eq 'SYS$LOGIN';
115 next if $IsVMS && $env eq 'HOME' && !$Config{'d_setenv'};
117 unless ($IsMacOS) { # ENV on MacOS is "special" :-)
118 # On VMS, %ENV is many layered.
119 delete $ENV{$env} while exists $ENV{$env};
123 # The following means we won't really be testing for non-existence,
124 # but in Perl we can only delete from the process table, not the job
126 $ENV{'SYS$LOGIN'} = '' if $IsVMS;
130 no warnings 'uninitialized';
132 # Restore the environment for VMS (and doesn't hurt for anyone else)
133 @ENV{@magic_envs} = @Saved_Env{@magic_envs};
137 foreach my $key (@magic_envs) {
138 # We're going to be using undefs a lot here.
139 no warnings 'uninitialized';
142 $ENV{$key} = catdir $Cwd, ($IsVMS ? 'OP' : 'op');
149 if (($IsVMS || $IsMacOS) && !$Config{'d_setenv'}) {
150 pass("Can't reset HOME, so chdir() test meaningless");
152 ok( !chdir(), 'chdir() w/o any ENV set' );
154 is( abs_path, $Cwd, ' abs_path() agrees' );