[perl #3038] Re: $qr = qr/^a$/m; $x =~ $qr; fails

[p5sagit/p5-mst-13.2.git] / t / op / chdir.t

diff --git a/t/op/chdir.t b/t/op/chdir.t
index b44cd6f..8929069 100644 (file)
--- a/t/op/chdir.t
+++ b/t/op/chdir.t
@@ -1,3 +1,5 @@
+#!./perl -w
+
 BEGIN {
     # We're not going to chdir() into 't' because we don't know if
     # chdir() works!  Instead, we'll hedge our bets and put both
@@ -5,70 +7,132 @@ BEGIN {
     @INC = qw(t . lib ../lib);
 }
 
+use Config;
 require "test.pl";
-plan(tests => 25);
+plan(tests => 31);
+
+my $IsVMS   = $^O eq 'VMS';
+my $IsMacOS = $^O eq 'MacOS';
 
 # Might be a little early in the testing process to start using these,
 # but I can't think of a way to write this test without them.
-use File::Spec::Functions qw(:DEFAULT splitdir rel2abs);
+use File::Spec::Functions qw(:DEFAULT splitdir rel2abs splitpath);
 
 # Can't use Cwd::abs_path() because it has different ideas about
-# path seperators than File::Spec.
+# path separators than File::Spec.
 sub abs_path {
-    rel2abs(curdir);
+    my $d = rel2abs(curdir);
+
+    $d = uc($d) if $IsVMS;
+    $d = lc($d) if $^O =~ /^uwin/;
+    $d;
 }
 
-my $cwd = abs_path;
+my $Cwd = abs_path;
 
 # Let's get to a known position
 SKIP: {
-    skip("Already in t/", 2) if (splitdir(abs_path))[-1] eq 't';
+    my ($vol,$dir) = splitpath(abs_path,1);
+    my $test_dir = $IsVMS ? 'T' : 't';
+    skip("Already in t/", 2) if (splitdir($dir))[-1] eq $test_dir;
 
-    ok( chdir('t'),     'chdir("t")');
-    is( abs_path, catdir($cwd, 't'),       '  abs_path() agrees' );
+    ok( chdir($test_dir),     'chdir($test_dir)');
+    is( abs_path, catdir($Cwd, $test_dir),    '  abs_path() agrees' );
 }
 
-$cwd = abs_path;
+$Cwd = abs_path;
 
 # The environment variables chdir() pays attention to.
 my @magic_envs = qw(HOME LOGDIR SYS$LOGIN);
 
-foreach my $key (@magic_envs) {
-    # We're going to be using undefs a lot here.
-    no warnings 'uninitialized';
+sub check_env {
+    my($key) = @_;
 
-    delete @ENV{@magic_envs};
-    local $ENV{$key} = catdir $cwd, 'op';
-    
     # Make sure $ENV{'SYS$LOGIN'} is only honored on VMS.
-    if( $key eq 'SYS$LOGIN' && $^O ne 'VMS' ) {
-        ok( !chdir(),             "chdir() on $^O ignores only \$ENV{$key} set" );
-        is( abs_path, $cwd,       '  abs_path() did not change' );
-        ok( 1,                    "  no need to chdir back on $^O" );
+    if( $key eq 'SYS$LOGIN' && !$IsVMS && !$IsMacOS ) {
+        ok( !chdir(),         "chdir() on $^O ignores only \$ENV{$key} set" );
+        is( abs_path, $Cwd,   '  abs_path() did not change' );
+        pass( "  no need to test SYS\$LOGIN on $^O" ) for 1..7;
     }
     else {
         ok( chdir(),              "chdir() w/ only \$ENV{$key} set" );
         is( abs_path, $ENV{$key}, '  abs_path() agrees' );
-        chdir($cwd);
-        is( abs_path, $cwd,       '  and back again' );
+        chdir($Cwd);
+        is( abs_path, $Cwd,       '  and back again' );
+
+        my $warning = '';
+        local $SIG{__WARN__} = sub { $warning .= join '', @_ };
+
+
+        # Check the deprecated chdir(undef) feature.
+#line 64
+        ok( chdir(undef),           "chdir(undef) w/ only \$ENV{$key} set" );
+        is( abs_path, $ENV{$key},   '  abs_path() agrees' );
+        is( $warning,  <<WARNING,   '  got uninit & deprecation warning' );
+Use of uninitialized value in chdir at $0 line 64.
+Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 64.
+WARNING
+
+        chdir($Cwd);
+
+        # Ditto chdir('').
+        $warning = '';
+#line 76
+        ok( chdir(''),              "chdir('') w/ only \$ENV{$key} set" );
+        is( abs_path, $ENV{$key},   '  abs_path() agrees' );
+        is( $warning,  <<WARNING,   '  got deprecation warning' );
+Use of chdir('') or chdir(undef) as chdir() is deprecated at $0 line 76.
+WARNING
+
+        chdir($Cwd);
     }
+}
+
+my %Saved_Env = ();
+sub clean_env {
+    foreach my $env (@magic_envs) {
+        $Saved_Env{$env} = $ENV{$env};
 
-    # Bug had chdir(undef) being the same as chdir()
-    ok( !chdir(undef),              "chdir(undef) w/ only \$ENV{$key} set" );
-    is( abs_path, $cwd,             '  abs_path() agrees' );
+        # Can't actually delete SYS$ stuff on VMS.
+        next if $IsVMS && $env eq 'SYS$LOGIN';
+        next if $IsVMS && $env eq 'HOME' && !$Config{'d_setenv'};
 
-    # Ditto chdir('').
-    ok( !chdir(''),                 "chdir('') w/ only \$ENV{$key} set" );
-    is( abs_path, $cwd,             '  abs_path() agrees' );
+        unless ($IsMacOS) { # ENV on MacOS is "special" :-)
+            # On VMS, %ENV is many layered.
+            delete $ENV{$env} while exists $ENV{$env};
+        }
+    }
+
+    # The following means we won't really be testing for non-existence,
+    # but in Perl we can only delete from the process table, not the job 
+    # table.
+    $ENV{'SYS$LOGIN'} = '' if $IsVMS;
 }
 
-{
+END {
+    no warnings 'uninitialized';
+
+    # Restore the environment for VMS (and doesn't hurt for anyone else)
+    @ENV{@magic_envs} = @Saved_Env{@magic_envs};
+}
+
+
+foreach my $key (@magic_envs) {
     # We're going to be using undefs a lot here.
     no warnings 'uninitialized';
 
-    # Unset all the environment variables chdir() pay attention to.
-    local @ENV{@magic_envs} = (undef) x @magic_envs;
+    clean_env;
+    $ENV{$key} = catdir $Cwd, ($IsVMS ? 'OP' : 'op');
+
+    check_env($key);
+}
 
-    ok( !chdir(),                   'chdir() w/o any ENV set' );
-    is( abs_path, $cwd,             '  abs_path() agrees' );
+{
+    clean_env;
+    if (($IsVMS || $IsMacOS) && !$Config{'d_setenv'}) {
+        pass("Can't reset HOME, so chdir() test meaningless");
+    } else {
+        ok( !chdir(),                   'chdir() w/o any ENV set' );
+    }
+    is( abs_path, $Cwd,             '  abs_path() agrees' );
 }