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

#!./perl

BEGIN {
    $| = 1;
    chdir 't' if -d 't';
    @INC = '../lib';
    $SIG{__WARN__} = sub { die "Dying on warning: ", @_ };
    require './test.pl';
}

use warnings;
use Config;

plan (tests => 79);

$Is_MSWin32  = $^O eq 'MSWin32';
$Is_NetWare  = $^O eq 'NetWare';
$Is_VMS      = $^O eq 'VMS';
$Is_Dos      = $^O eq 'dos';
$Is_os2      = $^O eq 'os2';
$Is_Cygwin   = $^O eq 'cygwin';
$Is_MacOS    = $^O eq 'MacOS';
$Is_MPE      = $^O eq 'mpeix';		
$Is_miniperl = $ENV{PERL_CORE_MINITEST};
$Is_BeOS     = $^O eq 'beos';

$PERL = $ENV{PERL}
    || ($Is_NetWare           ? 'perl'   :
       ($Is_MacOS || $Is_VMS) ? $^X      :
       $Is_MSWin32            ? '.\perl' :
       './perl');

eval '$ENV{"FOO"} = "hi there";';	# check that ENV is inited inside eval
# cmd.exe will echo 'variable=value' but 4nt will echo just the value
# -- Nikola Knezevic
if ($Is_MSWin32)  { like `set FOO`, qr/^(?:FOO=)?hi there$/; }
elsif ($Is_MacOS) { ok "1 # skipped", 1; }
elsif ($Is_VMS)   { is `write sys\$output f\$trnlnm("FOO")`, "hi there\n"; }
else              { is `echo \$FOO`, "hi there\n"; }

unlink 'ajslkdfpqjsjfk';
$! = 0;
open(FOO,'ajslkdfpqjsjfk');
isnt($!, 0);
close FOO; # just mention it, squelch used-only-once

SKIP: {
    skip('SIGINT not safe on this platform', 5)
	if $Is_MSWin32 || $Is_NetWare || $Is_Dos || $Is_MPE || $Is_MacOS;
  # the next tests are done in a subprocess because sh spits out a
  # newline onto stderr when a child process kills itself with SIGINT.
  # We use a pipe rather than system() because the VMS command buffer
  # would overflow with a command that long.

    open( CMDPIPE, "| $PERL");

    print CMDPIPE <<'END';

    $| = 1;		# command buffering

    $SIG{"INT"} = "ok3";     kill "INT",$$; sleep 1;
    $SIG{"INT"} = "IGNORE";  kill "INT",$$; sleep 1; print "ok 4\n";
    $SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print "not ok 4\n";

    sub ok3 {
	if (($x = pop(@_)) eq "INT") {
	    print "ok 3\n";
	}
	else {
	    print "not ok 3 ($x @_)\n";
	}
    }

END

    close CMDPIPE;

    open( CMDPIPE, "| $PERL");
    print CMDPIPE <<'END';

    { package X;
	sub DESTROY {
	    kill "INT",$$;
	}
    }
    sub x {
	my $x=bless [], 'X';
	return sub { $x };
    }
    $| = 1;		# command buffering
    $SIG{"INT"} = "ok5";
    {
	local $SIG{"INT"}=x();
	print ""; # Needed to expose failure in 5.8.0 (why?)
    }
    sleep 1;
    delete $SIG{"INT"};
    kill "INT",$$; sleep 1;
    sub ok5 {
	print "ok 5\n";
    }
END
    close CMDPIPE;
    $? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte
    my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : '');
    print $? & 0xFF ? "ok 6$todo\n" : "not ok 6$todo\n";

    open(CMDPIPE, "| $PERL");
    print CMDPIPE <<'END';

    sub PVBM () { 'foo' }
    index 'foo', PVBM;
    my $pvbm = PVBM;

    sub foo { exit 0 }

    $SIG{"INT"} = $pvbm;
    kill "INT", $$; sleep 1;
END
    close CMDPIPE;
    $? >>= 8 if $^O eq 'VMS';
    print $? ? "not ok 7\n" : "ok 7\n";

    curr_test(curr_test() + 5);
}

# can we slice ENV?
@val1 = @ENV{keys(%ENV)};
@val2 = values(%ENV);
is join(':',@val1), join(':',@val2);
cmp_ok @val1, '>', 1;

# regex vars
'foobarbaz' =~ /b(a)r/;
is $`, 'foo';
is $&, 'bar';
is $', 'baz';
is $+, 'a';

# $"
@a = qw(foo bar baz);
is "@a", "foo bar baz";
{
    local $" = ',';
    is "@a", "foo,bar,baz";
}

# $;
%h = ();
$h{'foo', 'bar'} = 1;
is((keys %h)[0], "foo\034bar");
{
    local $; = 'x';
    %h = ();
    $h{'foo', 'bar'} = 1;
    is((keys %h)[0], 'fooxbar');
}

# $?, $@, $$
SKIP:  {
    skip('$? + system are broken on MacPerl', 2) if $Is_MacOS;
    system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(0)"];
    is $?, 0;
    system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(1)"];
    isnt $?, 0;
}

eval { die "foo\n" };
is $@, "foo\n";

cmp_ok($$, '>', 0);
eval { $$++ };
like ($@, qr/^Modification of a read-only value attempted/);

# $^X and $0
{
    if ($^O eq 'qnx') {
	chomp($wd = `/usr/bin/fullpath -t`);
    }
    elsif($Is_Cygwin || $Config{'d_procselfexe'}) {
       # Cygwin turns the symlink into the real file
       chomp($wd = `pwd`);
       $wd =~ s#/t$##;
       if ($Is_Cygwin) {
	   $wd = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($wd, 1));
       }
    }
    elsif($Is_os2) {
       $wd = Cwd::sys_cwd();
    }
    elsif($Is_MacOS) {
       $wd = ':';
    }
    else {
	$wd = '.';
    }
    my $perl = ($Is_MacOS || $Is_VMS) ? $^X : "$wd/perl";
    my $headmaybe = '';
    my $middlemaybe = '';
    my $tailmaybe = '';
    $script = "$wd/show-shebang";
    if ($Is_MSWin32) {
	chomp($wd = `cd`);
	$wd =~ s|\\|/|g;
	$perl = "$wd/perl.exe";
	$script = "$wd/show-shebang.bat";
	$headmaybe = <<EOH ;
\@rem ='
\@echo off
$perl -x \%0
goto endofperl
\@rem ';
EOH
	$tailmaybe = <<EOT ;

__END__
:endofperl
EOT
    }
    elsif ($Is_os2) {
      $script = "./show-shebang";
    }
    elsif ($Is_MacOS) {
      $script = ":show-shebang";
    }
    elsif ($Is_VMS) {
      $script = "[]show-shebang";
    }
    elsif ($Is_Cygwin) {
      $middlemaybe = <<'EOX'
$^X = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($^X, 1));
$0 = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($0, 1));
EOX
    }
    if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'vmesa') {  # no shebang
	$headmaybe = <<EOH ;
    eval 'exec ./perl -S \$0 \${1+"\$\@"}'
        if 0;
EOH
    }
    $s1 = "\$^X is $perl, \$0 is $script\n";
    ok open(SCRIPT, ">$script") or diag $!;
    ok print(SCRIPT $headmaybe . <<EOB . $middlemaybe . <<'EOF' . $tailmaybe) or diag $!;
#!$wd/perl
EOB
print "\$^X is $^X, \$0 is $0\n";
EOF
    ok close(SCRIPT) or diag $!;
    ok chmod(0755, $script) or diag $!;
    $_ = ($Is_MacOS || $Is_VMS) ? `$perl $script` : `$script`;
    s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
    s{./$script}{$script} if $Is_BeOS; # revert BeOS execvp() side-effect
    s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
    s{is perl}{is $perl}; # for systems where $^X is only a basename
    s{\\}{/}g;
    if ($Is_MSWin32 || $Is_os2) {
	is uc $_, uc $s1;
    } else {
	is $_, $s1;
    }
    $_ = `$perl $script`;
    s/\.exe//i if $Is_Dos or $Is_os2 or $Is_Cygwin;
    s{./$perl}{$perl} if $Is_BeOS; # revert BeOS execvp() side-effect
    s{\\}{/}g;
    if ($Is_MSWin32 || $Is_os2) {
	is uc $_, uc $s1;
    } else {
	is $_, $s1;
    }
    ok unlink($script) or diag $!;
}

# $], $^O, $^T
cmp_ok $], '>=', 5.00319;
ok $^O;
cmp_ok $^T, '>', 850000000;

# Test change 25062 is working
my $orig_osname = $^O;
{
local $^I = '.bak';
is $^O, $orig_osname, 'Assigning $^I does not clobber $^O';
}
$^O = $orig_osname;

SKIP: {
    skip("%ENV manipulations fail or aren't safe on $^O", 4)
	if $Is_VMS || $Is_Dos || $Is_MacOS;

 SKIP: {
	skip("clearing \%ENV is not safe when running under valgrind")
	    if $ENV{PERL_VALGRIND};

	    $PATH = $ENV{PATH};
	    $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0;
	    $ENV{foo} = "bar";
	    %ENV = ();
	    $ENV{PATH} = $PATH;
	    $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0;
	    if ($Is_MSWin32) {
		is `set foo 2>NUL`, "";
	    } else {
		is `echo \$foo`, "\n";
	    }
	}

	$ENV{__NoNeSuCh} = "foo";
	$0 = "bar";
# cmd.exe will echo 'variable=value' but 4nt will echo just the value
# -- Nikola Knezevic
    	if ($Is_MSWin32) {
	    like `set __NoNeSuCh`, qr/^(?:__NoNeSuCh=)?foo$/;
	} else {
	    is `echo \$__NoNeSuCh`, "foo\n";
	}
    SKIP: {
	    skip("\$0 check only on Linux and FreeBSD", 2)
		unless $^O =~ /^(linux|freebsd)$/
		    && open CMDLINE, "/proc/$$/cmdline";

	    chomp(my $line = scalar <CMDLINE>);
	    my $me = (split /\0/, $line)[0];
	    is $me, $0, 'altering $0 is effective (testing with /proc/)';
	    close CMDLINE;
            # perlbug #22811
            my $mydollarzero = sub {
              my($arg) = shift;
              $0 = $arg if defined $arg;
	      # In FreeBSD the ps -o command= will cause
	      # an empty header line, grab only the last line.
              my $ps = (`ps -o command= -p $$`)[-1];
              return if $?;
              chomp $ps;
              printf "# 0[%s]ps[%s]\n", $0, $ps;
              $ps;
            };
            my $ps = $mydollarzero->("x");
            ok(!$ps  # we allow that something goes wrong with the ps command
	       # In Linux 2.4 we would get an exact match ($ps eq 'x') but
	       # in Linux 2.2 there seems to be something funny going on:
	       # it seems as if the original length of the argv[] would
	       # be stored in the proc struct and then used by ps(1),
	       # no matter what characters we use to pad the argv[].
	       # (And if we use \0:s, they are shown as spaces.)  Sigh.
               || $ps =~ /^x\s*$/
	       # FreeBSD cannot get rid of both the leading "perl :"
	       # and the trailing " (perl)": some FreeBSD versions
	       # can get rid of the first one.
	       || ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/),
		       'altering $0 is effective (testing with `ps`)');
	}
}

{
    my $ok = 1;
    my $warn = '';
    local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; };
    $! = undef;
    local $TODO = $Is_VMS ? "'\$!=undef' does throw a warning" : '';
    ok($ok, $warn);
}

# test case-insignificance of %ENV (these tests must be enabled only
# when perl is compiled with -DENV_IS_CASELESS)
SKIP: {
    skip('no caseless %ENV support', 4) unless $Is_MSWin32 || $Is_NetWare;

    %ENV = ();
    $ENV{'Foo'} = 'bar';
    $ENV{'fOo'} = 'baz';
    is scalar(keys(%ENV)), 1;
    ok exists $ENV{'FOo'};
    is delete $ENV{'foO'}, 'baz';
    is scalar(keys(%ENV)), 0;
}

SKIP: {
    skip ("miniperl can't rely on loading %Errno", 2) if $Is_miniperl;
   no warnings 'void';

# Make sure Errno hasn't been prematurely autoloaded

   ok !keys %Errno::;

# Test auto-loading of Errno when %! is used

   ok scalar eval q{
      %!;
      defined %Errno::;
   }, $@;
}

SKIP:  {
    skip ("miniperl can't rely on loading %Errno") if $Is_miniperl;
    # Make sure that Errno loading doesn't clobber $!

    undef %Errno::;
    delete $INC{"Errno.pm"};

    open(FOO, "nonesuch"); # Generate ENOENT
    my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
    ok ${"!"}{ENOENT};
}

is $^S, 0;
eval { is $^S,1 };
eval " BEGIN { ok ! defined \$^S } ";
is $^S, 0;

is ${^TAINT}, 0;
eval { ${^TAINT} = 1 };
is ${^TAINT}, 0;

# 5.6.1 had a bug: @+ and @- were not properly interpolated
# into double-quoted strings
# 20020414 mjd-perl-patch+@plover.com
"I like pie" =~ /(I) (like) (pie)/;
is "@-",  "0 0 2 7";
is "@+", "10 1 6 10";

# Tests for the magic get of $\
{
    my $ok = 0;
    # [perl #19330]
    {
	local $\ = undef;
	$\++; $\++;
	$ok = $\ eq 2;
    }
    ok $ok;
    $ok = 0;
    {
	local $\ = "a\0b";
	$ok = "a$\b" eq "aa\0bb";
    }
    ok $ok;
}

# Test for bug [perl #27839]
{
    my $x;
    sub f {
	"abc" =~ /(.)./;
	$x = "@+";
	return @+;
    };
    my @y = f();
    is $x, "@y", "return a magic array ($x) vs (@y)";
}

# Test for bug [perl #36434]
# Can not do this test on VMS, EPOC, and SYMBIAN according to comments
# in mg.c/Perl_magic_clear_all_env()
SKIP: {
    skip('Can\'t make assignment to \%ENV on this system', 3) if $Is_VMS;

    local @ISA;
    local %ENV;
    # This used to be __PACKAGE__, but that causes recursive
    #  inheritance, which is detected earlier now and broke
    #  this test
    eval { push @ISA, __FILE__ };
    is $@, '', 'Push a constant on a magic array';
    $@ and print "# $@";
    eval { %ENV = (PATH => __PACKAGE__) };
    is $@, '', 'Assign a constant to a magic hash';
    $@ and print "# $@";
    eval { my %h = qw(A B); %ENV = (PATH => (keys %h)[0]) };
    is $@, '', 'Assign a shared key to a magic hash';
    $@ and print "# $@";
}

# Tests for Perl_magic_clearsig
foreach my $sig (qw(__WARN__ INT)) {
    $SIG{$sig} = lc $sig;
    is $SIG{$sig}, 'main::' . lc $sig, "Can assign to $sig";
    is delete $SIG{$sig}, 'main::' . lc $sig, "Can delete from $sig";
    is $SIG{$sig}, undef, "$sig is now gone";
    is delete $SIG{$sig}, undef, "$sig remains gone";
}

# And now one which doesn't exist;
{
    no warnings 'signal';
    $SIG{HUNGRY} = 'mmm, pie';
}
is $SIG{HUNGRY}, 'mmm, pie', 'Can assign to HUNGRY';
is delete $SIG{HUNGRY}, 'mmm, pie', 'Can delete from HUNGRY';
is $SIG{HUNGRY}, undef, "HUNGRY is now gone";
is delete $SIG{HUNGRY}, undef, "HUNGRY remains gone";

# Test deleting signals that we never set
foreach my $sig (qw(__DIE__ _BOGUS_HOOK PIPE THIRSTY)) {
    is $SIG{$sig}, undef, "$sig is not present";
    is delete $SIG{$sig}, undef, "delete of $sig returns undef";
}
Commit	Line	Data
8d063cd8	1	#!./perl
8d063cd8	2
90ce63d5	3	BEGIN {
90ce63d5	4	$\| = 1;
90ce63d5	5	chdir 't' if -d 't';
20822f61	6	@INC = '../lib';
774d564b	7	$SIG{__WARN__} = sub { die "Dying on warning: ", @_ };
b2978f4e	8	require './test.pl';
90ce63d5	9	}
8d063cd8	10
9f1b1f2d	11	use warnings;
04fee9b5	12	use Config;
9f1b1f2d	13
179c85a2	14	plan (tests => 79);
0bee926d	15
43651d81	16	$Is_MSWin32 = $^O eq 'MSWin32';
	17	$Is_NetWare = $^O eq 'NetWare';
	18	$Is_VMS = $^O eq 'VMS';
	19	$Is_Dos = $^O eq 'dos';
	20	$Is_os2 = $^O eq 'os2';
	21	$Is_Cygwin = $^O eq 'cygwin';
	22	$Is_MacOS = $^O eq 'MacOS';
	23	$Is_MPE = $^O eq 'mpeix';
	24	$Is_miniperl = $ENV{PERL_CORE_MINITEST};
dbc1d986	25	$Is_BeOS = $^O eq 'beos';
be708cc0	26
c8d62b71	27	$PERL = $ENV{PERL}
	28	\|\| ($Is_NetWare ? 'perl' :
	29	($Is_MacOS \|\| $Is_VMS) ? $^X :
	30	$Is_MSWin32 ? '.\perl' :
	31	'./perl');
68dc0745	32
39e571d4	33	eval '$ENV{"FOO"} = "hi there";'; # check that ENV is inited inside eval
26f6e342	34	# cmd.exe will echo 'variable=value' but 4nt will echo just the value
26f6e342	35	# -- Nikola Knezevic
b2978f4e	36	if ($Is_MSWin32) { like `set FOO`, qr/^(?:FOO=)?hi there$/; }
be708cc0	37	elsif ($Is_MacOS) { ok "1 # skipped", 1; }
b2978f4e	38	elsif ($Is_VMS) { is `write sys\$output f\$trnlnm("FOO")`, "hi there\n"; }
b2978f4e	39	else { is `echo \$FOO`, "hi there\n"; }
8d063cd8	40
bf38876a	41	unlink 'ajslkdfpqjsjfk';
8d063cd8	42	$! = 0;
90ce63d5	43	open(FOO,'ajslkdfpqjsjfk');
b2978f4e	44	isnt($!, 0);
90ce63d5	45	close FOO; # just mention it, squelch used-only-once
8d063cd8	46
b2978f4e	47	SKIP: {
	48	skip('SIGINT not safe on this platform', 5)
	49	if $Is_MSWin32 \|\| $Is_NetWare \|\| $Is_Dos \|\| $Is_MPE \|\| $Is_MacOS;
c363d00c	50	# the next tests are done in a subprocess because sh spits out a
c363d00c	51	# newline onto stderr when a child process kills itself with SIGINT.
04fee9b5	52	# We use a pipe rather than system() because the VMS command buffer
c363d00c	53	# would overflow with a command that long.
	54
	55	open( CMDPIPE, "\| $PERL");
	56
	57	print CMDPIPE <<'END';
378cc40b	58
79072805	59	$\| = 1; # command buffering
378cc40b	60
b715f106	61	$SIG{"INT"} = "ok3"; kill "INT",$$; sleep 1;
b715f106	62	$SIG{"INT"} = "IGNORE"; kill "INT",$$; sleep 1; print "ok 4\n";
0bee926d	63	$SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print "not ok 4\n";
79072805	64
	65	sub ok3 {
	66	if (($x = pop(@_)) eq "INT") {
	67	print "ok 3\n";
	68	}
	69	else {
652ed9f8	70	print "not ok 3 ($x @_)\n";
79072805	71	}
	72	}
	73
	74	END
c363d00c	75
	76	close CMDPIPE;
	77
2d4fcd5e	78	open( CMDPIPE, "\| $PERL");
	79	print CMDPIPE <<'END';
	80
	81	{ package X;
	82	sub DESTROY {
	83	kill "INT",$$;
	84	}
	85	}
	86	sub x {
	87	my $x=bless [], 'X';
	88	return sub { $x };
	89	}
	90	$\| = 1; # command buffering
	91	$SIG{"INT"} = "ok5";
	92	{
	93	local $SIG{"INT"}=x();
	94	print ""; # Needed to expose failure in 5.8.0 (why?)
	95	}
	96	sleep 1;
	97	delete $SIG{"INT"};
	98	kill "INT",$$; sleep 1;
	99	sub ok5 {
	100	print "ok 5\n";
	101	}
	102	END
	103	close CMDPIPE;
bb4e15c8	104	$? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte
639cf43b	105	my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : '');
639cf43b	106	print $? & 0xFF ? "ok 6$todo\n" : "not ok 6$todo\n";
2d4fcd5e	107
6e592b3a	108	open(CMDPIPE, "\| $PERL");
	109	print CMDPIPE <<'END';
	110
	111	sub PVBM () { 'foo' }
	112	index 'foo', PVBM;
	113	my $pvbm = PVBM;
	114
	115	sub foo { exit 0 }
	116
	117	$SIG{"INT"} = $pvbm;
	118	kill "INT", $$; sleep 1;
	119	END
	120	close CMDPIPE;
	121	$? >>= 8 if $^O eq 'VMS';
	122	print $? ? "not ok 7\n" : "ok 7\n";
	123
b2978f4e	124	curr_test(curr_test() + 5);
68dc0745	125	}
a687059c	126
68dc0745	127	# can we slice ENV?
68dc0745	128	@val1 = @ENV{keys(%ENV)};
a687059c	129	@val2 = values(%ENV);
b2978f4e	130	is join(':',@val1), join(':',@val2);
b2978f4e	131	cmp_ok @val1, '>', 1;
90ce63d5	132
	133	# regex vars
	134	'foobarbaz' =~ /b(a)r/;
b2978f4e	135	is $`, 'foo';
	136	is $&, 'bar';
	137	is $', 'baz';
	138	is $+, 'a';
90ce63d5	139
	140	# $"
	141	@a = qw(foo bar baz);
b2978f4e	142	is "@a", "foo bar baz";
90ce63d5	143	{
90ce63d5	144	local $" = ',';
b2978f4e	145	is "@a", "foo,bar,baz";
90ce63d5	146	}
a687059c	147
90ce63d5	148	# $;
	149	%h = ();
	150	$h{'foo', 'bar'} = 1;
b2978f4e	151	is((keys %h)[0], "foo\034bar");
90ce63d5	152	{
	153	local $; = 'x';
	154	%h = ();
	155	$h{'foo', 'bar'} = 1;
b2978f4e	156	is((keys %h)[0], 'fooxbar');
90ce63d5	157	}
ed6116ce	158
90ce63d5	159	# $?, $@, $$
b2978f4e	160	SKIP: {
b2978f4e	161	skip('$? + system are broken on MacPerl', 2) if $Is_MacOS;
dc459aad	162	system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(0)"];
b2978f4e	163	is $?, 0;
dc459aad	164	system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(1)"];
b2978f4e	165	isnt $?, 0;
dc459aad	166	}
90ce63d5	167
90ce63d5	168	eval { die "foo\n" };
b2978f4e	169	is $@, "foo\n";
90ce63d5	170
b2978f4e	171	cmp_ok($$, '>', 0);
306196c3	172	eval { $$++ };
b2978f4e	173	like ($@, qr/^Modification of a read-only value attempted/);
90ce63d5	174
90ce63d5	175	# $^X and $0
ed37317b	176	{
3e3baf6d	177	if ($^O eq 'qnx') {
7fbf1995	178	chomp($wd = `/usr/bin/fullpath -t`);
68dc0745	179	}
04fee9b5	180	elsif($Is_Cygwin \|\| $Config{'d_procselfexe'}) {
1cab015a	181	# Cygwin turns the symlink into the real file
	182	chomp($wd = `pwd`);
	183	$wd =~ s#/t$##;
6178c52a	184	if ($Is_Cygwin) {
	185	$wd = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($wd, 1));
	186	}
1cab015a	187	}
ed344e4f	188	elsif($Is_os2) {
	189	$wd = Cwd::sys_cwd();
	190	}
be708cc0	191	elsif($Is_MacOS) {
	192	$wd = ':';
	193	}
68dc0745	194	else {
	195	$wd = '.';
	196	}
c363d00c	197	my $perl = ($Is_MacOS \|\| $Is_VMS) ? $^X : "$wd/perl";
ed37317b	198	my $headmaybe = '';
6178c52a	199	my $middlemaybe = '';
ed37317b	200	my $tailmaybe = '';
68dc0745	201	$script = "$wd/show-shebang";
ed37317b	202	if ($Is_MSWin32) {
ed37317b	203	chomp($wd = `cd`);
8ac9c18d	204	$wd =~ s\|\\\|/\|g;
	205	$perl = "$wd/perl.exe";
	206	$script = "$wd/show-shebang.bat";
ed37317b	207	$headmaybe = <<EOH ;
	208	\@rem ='
	209	\@echo off
	210	$perl -x \%0
	211	goto endofperl
	212	\@rem ';
	213	EOH
	214	$tailmaybe = <<EOT ;
	215
	216	__END__
	217	:endofperl
	218	EOT
	219	}
ed344e4f	220	elsif ($Is_os2) {
	221	$script = "./show-shebang";
	222	}
be708cc0	223	elsif ($Is_MacOS) {
	224	$script = ":show-shebang";
	225	}
c363d00c	226	elsif ($Is_VMS) {
c363d00c	227	$script = "[]show-shebang";
be708cc0	228	}
6178c52a	229	elsif ($Is_Cygwin) {
	230	$middlemaybe = <<'EOX'
	231	$^X = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($^X, 1));
	232	$0 = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($0, 1));
	233	EOX
	234	}
a1a0e61e	235	if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'vmesa') { # no shebang
9d116dd7	236	$headmaybe = <<EOH ;
	237	eval 'exec ./perl -S \$0 \${1+"\$\@"}'
	238	if 0;
	239	EOH
	240	}
2eecd615	241	$s1 = "\$^X is $perl, \$0 is $script\n";
b2978f4e	242	ok open(SCRIPT, ">$script") or diag $!;
b2978f4e	243	ok print(SCRIPT $headmaybe . <<EOB . $middlemaybe . <<'EOF' . $tailmaybe) or diag $!;
774d564b	244	#!$wd/perl
774d564b	245	EOB
90ce63d5	246	print "\$^X is $^X, \$0 is $0\n";
90ce63d5	247	EOF
b2978f4e	248	ok close(SCRIPT) or diag $!;
b2978f4e	249	ok chmod(0755, $script) or diag $!;
c363d00c	250	$_ = ($Is_MacOS \|\| $Is_VMS) ? `$perl $script` : `$script`;
ed344e4f	251	s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
dbc1d986	252	s{./$script}{$script} if $Is_BeOS; # revert BeOS execvp() side-effect
68dc0745	253	s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
ed37317b	254	s{is perl}{is $perl}; # for systems where $^X is only a basename
a6c40364	255	s{\\}{/}g;
b2978f4e	256	if ($Is_MSWin32 \|\| $Is_os2) {
	257	is uc $_, uc $s1;
	258	} else {
	259	is $_, $s1;
	260	}
ed37317b	261	$_ = `$perl $script`;
4bbb7126	262	s/\.exe//i if $Is_Dos or $Is_os2 or $Is_Cygwin;
dbc1d986	263	s{./$perl}{$perl} if $Is_BeOS; # revert BeOS execvp() side-effect
a6c40364	264	s{\\}{/}g;
b2978f4e	265	if ($Is_MSWin32 \|\| $Is_os2) {
	266	is uc $_, uc $s1;
	267	} else {
	268	is $_, $s1;
	269	}
	270	ok unlink($script) or diag $!;
68dc0745	271	}
ed6116ce	272
90ce63d5	273	# $], $^O, $^T
b2978f4e	274	cmp_ok $], '>=', 5.00319;
0bee926d	275	ok $^O;
b2978f4e	276	cmp_ok $^T, '>', 850000000;
66b1d557	277
881ddac4	278	# Test change 25062 is working
	279	my $orig_osname = $^O;
	280	{
	281	local $^I = '.bak';
b2978f4e	282	is $^O, $orig_osname, 'Assigning $^I does not clobber $^O';
881ddac4	283	}
	284	$^O = $orig_osname;
	285
b2978f4e	286	SKIP: {
	287	skip("%ENV manipulations fail or aren't safe on $^O", 4)
	288	if $Is_VMS \|\| $Is_Dos \|\| $Is_MacOS;
	289
	290	SKIP: {
	291	skip("clearing \%ENV is not safe when running under valgrind")
	292	if $ENV{PERL_VALGRIND};
	293
da51b73c	294	$PATH = $ENV{PATH};
	295	$PDL = $ENV{PERL_DESTRUCT_LEVEL} \|\| 0;
	296	$ENV{foo} = "bar";
	297	%ENV = ();
	298	$ENV{PATH} = $PATH;
	299	$ENV{PERL_DESTRUCT_LEVEL} = $PDL \|\| 0;
b2978f4e	300	if ($Is_MSWin32) {
	301	is `set foo 2>NUL`, "";
	302	} else {
	303	is `echo \$foo`, "\n";
	304	}
da51b73c	305	}
3e3baf6d	306
ec00bdd8	307	$ENV{__NoNeSuCh} = "foo";
3e3baf6d	308	$0 = "bar";
26f6e342	309	# cmd.exe will echo 'variable=value' but 4nt will echo just the value
26f6e342	310	# -- Nikola Knezevic
b2978f4e	311	if ($Is_MSWin32) {
	312	like `set __NoNeSuCh`, qr/^(?:__NoNeSuCh=)?foo$/;
	313	} else {
	314	is `echo \$__NoNeSuCh`, "foo\n";
	315	}
	316	SKIP: {
	317	skip("\$0 check only on Linux and FreeBSD", 2)
	318	unless $^O =~ /^(linux\|freebsd)$/
	319	&& open CMDLINE, "/proc/$$/cmdline";
	320
09fdc078	321	chomp(my $line = scalar <CMDLINE>);
09fdc078	322	my $me = (split /\0/, $line)[0];
b2978f4e	323	is $me, $0, 'altering $0 is effective (testing with /proc/)';
09fdc078	324	close CMDLINE;
ecce83c2	325	# perlbug #22811
	326	my $mydollarzero = sub {
	327	my($arg) = shift;
	328	$0 = $arg if defined $arg;
fbd3c14b	329	# In FreeBSD the ps -o command= will cause
	330	# an empty header line, grab only the last line.
	331	my $ps = (`ps -o command= -p $$`)[-1];
ecce83c2	332	return if $?;
	333	chomp $ps;
	334	printf "# 0[%s]ps[%s]\n", $0, $ps;
	335	$ps;
	336	};
	337	my $ps = $mydollarzero->("x");
e26ae24d	338	ok(!$ps # we allow that something goes wrong with the ps command
80bca1b4	339	# In Linux 2.4 we would get an exact match ($ps eq 'x') but
	340	# in Linux 2.2 there seems to be something funny going on:
	341	# it seems as if the original length of the argv[] would
	342	# be stored in the proc struct and then used by ps(1),
	343	# no matter what characters we use to pad the argv[].
	344	# (And if we use \0:s, they are shown as spaces.) Sigh.
	345	\|\| $ps =~ /^x\s*$/
6a4647a3	346	# FreeBSD cannot get rid of both the leading "perl :"
	347	# and the trailing " (perl)": some FreeBSD versions
	348	# can get rid of the first one.
d2e0b13f	349	\|\| ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/),
e26ae24d	350	'altering $0 is effective (testing with `ps`)');
09fdc078	351	}
66b1d557	352	}
3e3baf6d	353
c7213721	354	{
a45269de	355	my $ok = 1;
	356	my $warn = '';
	357	local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; };
78987ded	358	$! = undef;
b2978f4e	359	local $TODO = $Is_VMS ? "'\$!=undef' does throw a warning" : '';
b2978f4e	360	ok($ok, $warn);
78987ded	361	}
78987ded	362
902173a3	363	# test case-insignificance of %ENV (these tests must be enabled only
902173a3	364	# when perl is compiled with -DENV_IS_CASELESS)
b2978f4e	365	SKIP: {
	366	skip('no caseless %ENV support', 4) unless $Is_MSWin32 \|\| $Is_NetWare;
	367
902173a3	368	%ENV = ();
	369	$ENV{'Foo'} = 'bar';
	370	$ENV{'fOo'} = 'baz';
b2978f4e	371	is scalar(keys(%ENV)), 1;
	372	ok exists $ENV{'FOo'};
	373	is delete $ENV{'foO'}, 'baz';
	374	is scalar(keys(%ENV)), 0;
902173a3	375	}
d2c93421	376
b2978f4e	377	SKIP: {
b2978f4e	378	skip ("miniperl can't rely on loading %Errno", 2) if $Is_miniperl;
126c71c8	379	no warnings 'void';
126c71c8	380
d2c93421	381	# Make sure Errno hasn't been prematurely autoloaded
d2c93421	382
b79f7545	383	ok !keys %Errno::;
d2c93421	384
	385	# Test auto-loading of Errno when %! is used
	386
126c71c8	387	ok scalar eval q{
	388	%!;
	389	defined %Errno::;
	390	}, $@;
	391	}
d2c93421	392
b2978f4e	393	SKIP: {
b2978f4e	394	skip ("miniperl can't rely on loading %Errno") if $Is_miniperl;
43651d81	395	# Make sure that Errno loading doesn't clobber $!
d2c93421	396
43651d81	397	undef %Errno::;
43651d81	398	delete $INC{"Errno.pm"};
d2c93421	399
43651d81	400	open(FOO, "nonesuch"); # Generate ENOENT
	401	my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
	402	ok ${"!"}{ENOENT};
	403	}
a4268c0a	404
b2978f4e	405	is $^S, 0;
b2978f4e	406	eval { is $^S,1 };
b0e6f864	407	eval " BEGIN { ok ! defined \$^S } ";
b2978f4e	408	is $^S, 0;
7c36658b	409
b2978f4e	410	is ${^TAINT}, 0;
7c36658b	411	eval { ${^TAINT} = 1 };
b2978f4e	412	is ${^TAINT}, 0;
9aa702ec	413
	414	# 5.6.1 had a bug: @+ and @- were not properly interpolated
	415	# into double-quoted strings
	416	# 20020414 mjd-perl-patch+@plover.com
b64ebf53	417	"I like pie" =~ /(I) (like) (pie)/;
b2978f4e	418	is "@-", "0 0 2 7";
b2978f4e	419	is "@+", "10 1 6 10";
9aa702ec	420
f28098ff	421	# Tests for the magic get of $\
	422	{
	423	my $ok = 0;
	424	# [perl #19330]
	425	{
	426	local $\ = undef;
	427	$\++; $\++;
	428	$ok = $\ eq 2;
	429	}
	430	ok $ok;
	431	$ok = 0;
	432	{
	433	local $\ = "a\0b";
	434	$ok = "a$\b" eq "aa\0bb";
	435	}
	436	ok $ok;
	437	}
547d1dd8	438
	439	# Test for bug [perl #27839]
	440	{
	441	my $x;
	442	sub f {
	443	"abc" =~ /(.)./;
	444	$x = "@+";
	445	return @+;
	446	};
	447	my @y = f();
b2978f4e	448	is $x, "@y", "return a magic array ($x) vs (@y)";
547d1dd8	449	}
4c9140ed	450
4c9140ed	451	# Test for bug [perl #36434]
b2978f4e	452	# Can not do this test on VMS, EPOC, and SYMBIAN according to comments
	453	# in mg.c/Perl_magic_clear_all_env()
	454	SKIP: {
	455	skip('Can\'t make assignment to \%ENV on this system', 3) if $Is_VMS;
	456
4c9140ed	457	local @ISA;
4c9140ed	458	local %ENV;
e1a479c5	459	# This used to be __PACKAGE__, but that causes recursive
	460	# inheritance, which is detected earlier now and broke
	461	# this test
	462	eval { push @ISA, __FILE__ };
b2978f4e	463	is $@, '', 'Push a constant on a magic array';
4c9140ed	464	$@ and print "# $@";
4c9140ed	465	eval { %ENV = (PATH => __PACKAGE__) };
b2978f4e	466	is $@, '', 'Assign a constant to a magic hash';
d8084ca5	467	$@ and print "# $@";
d8084ca5	468	eval { my %h = qw(A B); %ENV = (PATH => (keys %h)[0]) };
b2978f4e	469	is $@, '', 'Assign a shared key to a magic hash';
4c9140ed	470	$@ and print "# $@";
4c9140ed	471	}
179c85a2	472
	473	# Tests for Perl_magic_clearsig
	474	foreach my $sig (qw(__WARN__ INT)) {
	475	$SIG{$sig} = lc $sig;
	476	is $SIG{$sig}, 'main::' . lc $sig, "Can assign to $sig";
	477	is delete $SIG{$sig}, 'main::' . lc $sig, "Can delete from $sig";
	478	is $SIG{$sig}, undef, "$sig is now gone";
	479	is delete $SIG{$sig}, undef, "$sig remains gone";
	480	}
	481
	482	# And now one which doesn't exist;
	483	{
	484	no warnings 'signal';
	485	$SIG{HUNGRY} = 'mmm, pie';
	486	}
	487	is $SIG{HUNGRY}, 'mmm, pie', 'Can assign to HUNGRY';
	488	is delete $SIG{HUNGRY}, 'mmm, pie', 'Can delete from HUNGRY';
	489	is $SIG{HUNGRY}, undef, "HUNGRY is now gone";
	490	is delete $SIG{HUNGRY}, undef, "HUNGRY remains gone";
	491
	492	# Test deleting signals that we never set
	493	foreach my $sig (qw(__DIE__ _BOGUS_HOOK PIPE THIRSTY)) {
	494	is $SIG{$sig}, undef, "$sig is not present";
	495	is delete $SIG{$sig}, undef, "delete of $sig returns undef";
	496	}