[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: ", @_ };
}

use warnings;
use Config;

my $test = 1;
sub ok {
    my($ok, $info, $todo) = @_;

    # You have to do it this way or VMS will get confused.
    printf "%s $test%s\n", $ok ? "ok" : "not ok",
                           $todo ? " # TODO $todo" : '';

    unless( $ok ) {
        printf "# Failed test at line %d\n", (caller)[2];
        print  "# $info\n" if defined $info;
    }

    $test++;
    return $ok;
}

sub skip {
    my($reason) = @_;

    printf "ok $test # skipped%s\n", defined $reason ? ": $reason" : '';

    $test++;
    return 1;
}

print "1..53\n";

$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';		

$PERL = ($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)  { ok `set FOO` =~ /^(?:FOO=)?hi there$/; }
elsif ($Is_MacOS) { ok "1 # skipped", 1; }
elsif ($Is_VMS)   { ok `write sys\$output f\$trnlnm("FOO")` eq "hi there\n"; }
else              { ok `echo \$FOO` eq "hi there\n"; }

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

if ($Is_MSWin32 || $Is_NetWare || $Is_Dos || $Is_MPE || $Is_MacOS) {
    skip('SIGINT not safe on this platform') for 1..4;
}
else {
  # 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";

    $test += 4;
}

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

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

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

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

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

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

ok $$ > 0, $$;
eval { $$++ };
ok $@ =~ /^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`);
       $wd =~ s#/t$##;
    }
    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 $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) {
      $script = "[]show-shebang";
    }
    if ($^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"), $!;
    ok print(SCRIPT $headmaybe . <<EOB . <<'EOF' . $tailmaybe), $!;
#!$wd/perl
EOB
print "\$^X is $^X, \$0 is $0\n";
EOF
    ok close(SCRIPT), $!;
    ok chmod(0755, $script), $!;
    $_ = ($Is_MacOS || $Is_VMS) ? `$perl $script` : `$script`;
    s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
    s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
    s{is perl}{is $perl}; # for systems where $^X is only a basename
    s{\\}{/}g;
    ok((($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1:");
    $_ = `$perl $script`;
    s/\.exe//i if $Is_Dos or $Is_os2;
    s{\\}{/}g;
    ok((($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1: after `$perl $script`");
    ok unlink($script), $!;
}

# $], $^O, $^T
ok $] >= 5.00319, $];
ok $^O;
ok $^T > 850000000, $^T;

if ($Is_VMS || $Is_Dos || $Is_MacOS) {
    skip("%ENV manipulations fail or aren't safe on $^O") for 1..4;
}
else {
	if ($ENV{PERL_VALGRIND}) {
	    skip("clearing \%ENV is not safe when running under valgrind");
	} else {
	    $PATH = $ENV{PATH};
	    $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0;
	    $ENV{foo} = "bar";
	    %ENV = ();
	    $ENV{PATH} = $PATH;
	    $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0;
	    ok ($Is_MSWin32 ? (`set foo 2>NUL` eq "")
			    : (`echo \$foo` eq "\n") );
	}

	$ENV{__NoNeSuCh} = "foo";
	$0 = "bar";
# cmd.exe will echo 'variable=value' but 4nt will echo just the value
# -- Nikola Knezevic
       ok ($Is_MSWin32 ? (`set __NoNeSuCh` =~ /^(?:__NoNeSuCh=)?foo$/)
			    : (`echo \$__NoNeSuCh` eq "foo\n") );
	if ($^O =~ /^(linux|freebsd)$/ &&
	    open CMDLINE, "/proc/$$/cmdline") {
	    chomp(my $line = scalar <CMDLINE>);
	    my $me = (split /\0/, $line)[0];
	    ok($me eq $0, 'altering $0 is effective (testing with /proc/)');
	    close CMDLINE;
            # perlbug #22811
            my $mydollarzero = sub {
              my($arg) = shift;
              $0 = $arg if defined $arg;
	      # In FreeBSD the ps -o command= will cause
	      # an empty header line, grab only the last line.
              my $ps = (`ps -o command= -p $$`)[-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`)');
	} else {
	    skip("\$0 check only on Linux and FreeBSD") for 0, 1;
	}
}

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

# test case-insignificance of %ENV (these tests must be enabled only
# when perl is compiled with -DENV_IS_CASELESS)
if ($Is_MSWin32 || $Is_NetWare) {
    %ENV = ();
    $ENV{'Foo'} = 'bar';
    $ENV{'fOo'} = 'baz';
    ok (scalar(keys(%ENV)) == 1);
    ok exists($ENV{'FOo'});
    ok (delete($ENV{'foO'}) eq 'baz');
    ok (scalar(keys(%ENV)) == 0);
}
else {
    skip('no caseless %ENV support') for 1..4;
}

{
   no warnings 'void';

# Make sure Errno hasn't been prematurely autoloaded

   ok !defined %Errno::;

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

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


# 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};

ok $^S == 0 && defined $^S;
eval { ok $^S == 1 };
eval " BEGIN { ok ! defined \$^S } ";
ok $^S == 0 && defined $^S;

ok ${^TAINT} == 0;
eval { ${^TAINT} = 1 };
ok ${^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)/;
ok "@-" eq  "0 0 2 7";
ok "@+" eq "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;
}
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: ", @_ };
90ce63d5	8	}
8d063cd8	9
9f1b1f2d	10	use warnings;
04fee9b5	11	use Config;
9f1b1f2d	12
0bee926d	13	my $test = 1;
90ce63d5	14	sub ok {
0bee926d	15	my($ok, $info, $todo) = @_;
	16
	17	# You have to do it this way or VMS will get confused.
	18	printf "%s $test%s\n", $ok ? "ok" : "not ok",
	19	$todo ? " # TODO $todo" : '';
	20
	21	unless( $ok ) {
	22	printf "# Failed test at line %d\n", (caller)[2];
09fdc078	23	print "# $info\n" if defined $info;
90ce63d5	24	}
0bee926d	25
	26	$test++;
	27	return $ok;
	28	}
	29
	30	sub skip {
	31	my($reason) = @_;
	32
	33	printf "ok $test # skipped%s\n", defined $reason ? ": $reason" : '';
	34
	35	$test++;
	36	return 1;
90ce63d5	37	}
90ce63d5	38
ecce83c2	39	print "1..53\n";
0bee926d	40
3e3baf6d	41	$Is_MSWin32 = $^O eq 'MSWin32';
2986a63f	42	$Is_NetWare = $^O eq 'NetWare';
3e3baf6d	43	$Is_VMS = $^O eq 'VMS';
be708cc0	44	$Is_Dos = $^O eq 'dos';
	45	$Is_os2 = $^O eq 'os2';
	46	$Is_Cygwin = $^O eq 'cygwin';
	47	$Is_MacOS = $^O eq 'MacOS';
dc22e1c4	48	$Is_MPE = $^O eq 'mpeix';
be708cc0	49
c363d00c	50	$PERL = ($Is_NetWare ? 'perl' :
	51	($Is_MacOS \|\| $Is_VMS) ? $^X :
	52	$Is_MSWin32 ? '.\perl' :
be708cc0	53	'./perl');
68dc0745	54
39e571d4	55	eval '$ENV{"FOO"} = "hi there";'; # check that ENV is inited inside eval
26f6e342	56	# cmd.exe will echo 'variable=value' but 4nt will echo just the value
26f6e342	57	# -- Nikola Knezevic
8efe09f7	58	if ($Is_MSWin32) { ok `set FOO` =~ /^(?:FOO=)?hi there$/; }
be708cc0	59	elsif ($Is_MacOS) { ok "1 # skipped", 1; }
c363d00c	60	elsif ($Is_VMS) { ok `write sys\$output f\$trnlnm("FOO")` eq "hi there\n"; }
be708cc0	61	else { ok `echo \$FOO` eq "hi there\n"; }
8d063cd8	62
bf38876a	63	unlink 'ajslkdfpqjsjfk';
8d063cd8	64	$! = 0;
90ce63d5	65	open(FOO,'ajslkdfpqjsjfk');
0bee926d	66	ok $!, $!;
90ce63d5	67	close FOO; # just mention it, squelch used-only-once
8d063cd8	68
be708cc0	69	if ($Is_MSWin32 \|\| $Is_NetWare \|\| $Is_Dos \|\| $Is_MPE \|\| $Is_MacOS) {
2d4fcd5e	70	skip('SIGINT not safe on this platform') for 1..4;
68dc0745	71	}
68dc0745	72	else {
c363d00c	73	# the next tests are done in a subprocess because sh spits out a
c363d00c	74	# newline onto stderr when a child process kills itself with SIGINT.
04fee9b5	75	# We use a pipe rather than system() because the VMS command buffer
c363d00c	76	# would overflow with a command that long.
	77
	78	open( CMDPIPE, "\| $PERL");
	79
	80	print CMDPIPE <<'END';
378cc40b	81
79072805	82	$\| = 1; # command buffering
378cc40b	83
b715f106	84	$SIG{"INT"} = "ok3"; kill "INT",$$; sleep 1;
b715f106	85	$SIG{"INT"} = "IGNORE"; kill "INT",$$; sleep 1; print "ok 4\n";
0bee926d	86	$SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print "not ok 4\n";
79072805	87
	88	sub ok3 {
	89	if (($x = pop(@_)) eq "INT") {
	90	print "ok 3\n";
	91	}
	92	else {
652ed9f8	93	print "not ok 3 ($x @_)\n";
79072805	94	}
	95	}
	96
	97	END
c363d00c	98
	99	close CMDPIPE;
	100
2d4fcd5e	101	open( CMDPIPE, "\| $PERL");
	102	print CMDPIPE <<'END';
	103
	104	{ package X;
	105	sub DESTROY {
	106	kill "INT",$$;
	107	}
	108	}
	109	sub x {
	110	my $x=bless [], 'X';
	111	return sub { $x };
	112	}
	113	$\| = 1; # command buffering
	114	$SIG{"INT"} = "ok5";
	115	{
	116	local $SIG{"INT"}=x();
	117	print ""; # Needed to expose failure in 5.8.0 (why?)
	118	}
	119	sleep 1;
	120	delete $SIG{"INT"};
	121	kill "INT",$$; sleep 1;
	122	sub ok5 {
	123	print "ok 5\n";
	124	}
	125	END
	126	close CMDPIPE;
bb4e15c8	127	$? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte
639cf43b	128	my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : '');
639cf43b	129	print $? & 0xFF ? "ok 6$todo\n" : "not ok 6$todo\n";
2d4fcd5e	130
2d4fcd5e	131	$test += 4;
68dc0745	132	}
a687059c	133
68dc0745	134	# can we slice ENV?
68dc0745	135	@val1 = @ENV{keys(%ENV)};
a687059c	136	@val2 = values(%ENV);
0bee926d	137	ok join(':',@val1) eq join(':',@val2);
0bee926d	138	ok @val1 > 1;
90ce63d5	139
	140	# regex vars
	141	'foobarbaz' =~ /b(a)r/;
0bee926d	142	ok $` eq 'foo', $`;
	143	ok $& eq 'bar', $&;
	144	ok $' eq 'baz', $';
	145	ok $+ eq 'a', $+;
90ce63d5	146
	147	# $"
	148	@a = qw(foo bar baz);
0bee926d	149	ok "@a" eq "foo bar baz", "@a";
90ce63d5	150	{
90ce63d5	151	local $" = ',';
0bee926d	152	ok "@a" eq "foo,bar,baz", "@a";
90ce63d5	153	}
a687059c	154
90ce63d5	155	# $;
	156	%h = ();
	157	$h{'foo', 'bar'} = 1;
0bee926d	158	ok((keys %h)[0] eq "foo\034bar", (keys %h)[0]);
90ce63d5	159	{
	160	local $; = 'x';
	161	%h = ();
	162	$h{'foo', 'bar'} = 1;
0bee926d	163	ok((keys %h)[0] eq 'fooxbar', (keys %h)[0]);
90ce63d5	164	}
ed6116ce	165
90ce63d5	166	# $?, $@, $$
dc459aad	167	if ($Is_MacOS) {
	168	skip('$? + system are broken on MacPerl') for 1..2;
	169	}
	170	else {
	171	system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(0)"];
	172	ok $? == 0, $?;
	173	system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(1)"];
	174	ok $? != 0, $?;
	175	}
90ce63d5	176
90ce63d5	177	eval { die "foo\n" };
0bee926d	178	ok $@ eq "foo\n", $@;
90ce63d5	179
0bee926d	180	ok $$ > 0, $$;
306196c3	181	eval { $$++ };
306196c3	182	ok $@ =~ /^Modification of a read-only value attempted/;
90ce63d5	183
90ce63d5	184	# $^X and $0
ed37317b	185	{
3e3baf6d	186	if ($^O eq 'qnx') {
7fbf1995	187	chomp($wd = `/usr/bin/fullpath -t`);
68dc0745	188	}
04fee9b5	189	elsif($Is_Cygwin \|\| $Config{'d_procselfexe'}) {
1cab015a	190	# Cygwin turns the symlink into the real file
	191	chomp($wd = `pwd`);
	192	$wd =~ s#/t$##;
	193	}
ed344e4f	194	elsif($Is_os2) {
	195	$wd = Cwd::sys_cwd();
	196	}
be708cc0	197	elsif($Is_MacOS) {
	198	$wd = ':';
	199	}
68dc0745	200	else {
	201	$wd = '.';
	202	}
c363d00c	203	my $perl = ($Is_MacOS \|\| $Is_VMS) ? $^X : "$wd/perl";
ed37317b	204	my $headmaybe = '';
ed37317b	205	my $tailmaybe = '';
68dc0745	206	$script = "$wd/show-shebang";
ed37317b	207	if ($Is_MSWin32) {
ed37317b	208	chomp($wd = `cd`);
8ac9c18d	209	$wd =~ s\|\\\|/\|g;
	210	$perl = "$wd/perl.exe";
	211	$script = "$wd/show-shebang.bat";
ed37317b	212	$headmaybe = <<EOH ;
	213	\@rem ='
	214	\@echo off
	215	$perl -x \%0
	216	goto endofperl
	217	\@rem ';
	218	EOH
	219	$tailmaybe = <<EOT ;
	220
	221	__END__
	222	:endofperl
	223	EOT
	224	}
ed344e4f	225	elsif ($Is_os2) {
	226	$script = "./show-shebang";
	227	}
be708cc0	228	elsif ($Is_MacOS) {
	229	$script = ":show-shebang";
	230	}
c363d00c	231	elsif ($Is_VMS) {
c363d00c	232	$script = "[]show-shebang";
be708cc0	233	}
a1a0e61e	234	if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'vmesa') { # no shebang
9d116dd7	235	$headmaybe = <<EOH ;
	236	eval 'exec ./perl -S \$0 \${1+"\$\@"}'
	237	if 0;
	238	EOH
	239	}
2eecd615	240	$s1 = "\$^X is $perl, \$0 is $script\n";
0bee926d	241	ok open(SCRIPT, ">$script"), $!;
0bee926d	242	ok print(SCRIPT $headmaybe . <<EOB . <<'EOF' . $tailmaybe), $!;
774d564b	243	#!$wd/perl
774d564b	244	EOB
90ce63d5	245	print "\$^X is $^X, \$0 is $0\n";
90ce63d5	246	EOF
0bee926d	247	ok close(SCRIPT), $!;
0bee926d	248	ok chmod(0755, $script), $!;
c363d00c	249	$_ = ($Is_MacOS \|\| $Is_VMS) ? `$perl $script` : `$script`;
ed344e4f	250	s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
68dc0745	251	s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
ed37317b	252	s{is perl}{is $perl}; # for systems where $^X is only a basename
a6c40364	253	s{\\}{/}g;
0bee926d	254	ok((($Is_MSWin32 \|\| $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1:");
ed37317b	255	$_ = `$perl $script`;
ed344e4f	256	s/\.exe//i if $Is_Dos or $Is_os2;
a6c40364	257	s{\\}{/}g;
0bee926d	258	ok((($Is_MSWin32 \|\| $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1: after `$perl $script`");
22fc9b38	259	ok unlink($script), $!;
68dc0745	260	}
ed6116ce	261
90ce63d5	262	# $], $^O, $^T
0bee926d	263	ok $] >= 5.00319, $];
	264	ok $^O;
	265	ok $^T > 850000000, $^T;
66b1d557	266
be708cc0	267	if ($Is_VMS \|\| $Is_Dos \|\| $Is_MacOS) {
44d95355	268	skip("%ENV manipulations fail or aren't safe on $^O") for 1..4;
66b1d557	269	}
66b1d557	270	else {
da51b73c	271	if ($ENV{PERL_VALGRIND}) {
	272	skip("clearing \%ENV is not safe when running under valgrind");
	273	} else {
	274	$PATH = $ENV{PATH};
	275	$PDL = $ENV{PERL_DESTRUCT_LEVEL} \|\| 0;
	276	$ENV{foo} = "bar";
	277	%ENV = ();
	278	$ENV{PATH} = $PATH;
	279	$ENV{PERL_DESTRUCT_LEVEL} = $PDL \|\| 0;
	280	ok ($Is_MSWin32 ? (`set foo 2>NUL` eq "")
	281	: (`echo \$foo` eq "\n") );
	282	}
3e3baf6d	283
ec00bdd8	284	$ENV{__NoNeSuCh} = "foo";
3e3baf6d	285	$0 = "bar";
26f6e342	286	# cmd.exe will echo 'variable=value' but 4nt will echo just the value
26f6e342	287	# -- Nikola Knezevic
8efe09f7	288	ok ($Is_MSWin32 ? (`set __NoNeSuCh` =~ /^(?:__NoNeSuCh=)?foo$/)
ec00bdd8	289	: (`echo \$__NoNeSuCh` eq "foo\n") );
09fdc078	290	if ($^O =~ /^(linux\|freebsd)$/ &&
	291	open CMDLINE, "/proc/$$/cmdline") {
	292	chomp(my $line = scalar <CMDLINE>);
	293	my $me = (split /\0/, $line)[0];
ecce83c2	294	ok($me eq $0, 'altering $0 is effective (testing with /proc/)');
09fdc078	295	close CMDLINE;
ecce83c2	296	# perlbug #22811
	297	my $mydollarzero = sub {
	298	my($arg) = shift;
	299	$0 = $arg if defined $arg;
fbd3c14b	300	# In FreeBSD the ps -o command= will cause
	301	# an empty header line, grab only the last line.
	302	my $ps = (`ps -o command= -p $$`)[-1];
ecce83c2	303	return if $?;
	304	chomp $ps;
	305	printf "# 0[%s]ps[%s]\n", $0, $ps;
	306	$ps;
	307	};
	308	my $ps = $mydollarzero->("x");
e26ae24d	309	ok(!$ps # we allow that something goes wrong with the ps command
80bca1b4	310	# In Linux 2.4 we would get an exact match ($ps eq 'x') but
	311	# in Linux 2.2 there seems to be something funny going on:
	312	# it seems as if the original length of the argv[] would
	313	# be stored in the proc struct and then used by ps(1),
	314	# no matter what characters we use to pad the argv[].
	315	# (And if we use \0:s, they are shown as spaces.) Sigh.
	316	\|\| $ps =~ /^x\s*$/
6a4647a3	317	# FreeBSD cannot get rid of both the leading "perl :"
	318	# and the trailing " (perl)": some FreeBSD versions
	319	# can get rid of the first one.
d2e0b13f	320	\|\| ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/),
e26ae24d	321	'altering $0 is effective (testing with `ps`)');
09fdc078	322	} else {
651aa52e	323	skip("\$0 check only on Linux and FreeBSD") for 0, 1;
09fdc078	324	}
66b1d557	325	}
3e3baf6d	326
c7213721	327	{
a45269de	328	my $ok = 1;
	329	my $warn = '';
	330	local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; };
78987ded	331	$! = undef;
a45269de	332	ok($ok, $warn, $Is_VMS ? "'\$!=undef' does throw a warning" : '');
78987ded	333	}
78987ded	334
902173a3	335	# test case-insignificance of %ENV (these tests must be enabled only
902173a3	336	# when perl is compiled with -DENV_IS_CASELESS)
2986a63f	337	if ($Is_MSWin32 \|\| $Is_NetWare) {
902173a3	338	%ENV = ();
	339	$ENV{'Foo'} = 'bar';
	340	$ENV{'fOo'} = 'baz';
0bee926d	341	ok (scalar(keys(%ENV)) == 1);
	342	ok exists($ENV{'FOo'});
	343	ok (delete($ENV{'foO'}) eq 'baz');
	344	ok (scalar(keys(%ENV)) == 0);
902173a3	345	}
902173a3	346	else {
0bee926d	347	skip('no caseless %ENV support') for 1..4;
902173a3	348	}
d2c93421	349
126c71c8	350	{
	351	no warnings 'void';
	352
d2c93421	353	# Make sure Errno hasn't been prematurely autoloaded
d2c93421	354
126c71c8	355	ok !defined %Errno::;
d2c93421	356
	357	# Test auto-loading of Errno when %! is used
	358
126c71c8	359	ok scalar eval q{
	360	%!;
	361	defined %Errno::;
	362	}, $@;
	363	}
d2c93421	364
	365
	366	# Make sure that Errno loading doesn't clobber $!
	367
	368	undef %Errno::;
	369	delete $INC{"Errno.pm"};
	370
	371	open(FOO, "nonesuch"); # Generate ENOENT
	372	my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
0bee926d	373	ok ${"!"}{ENOENT};
a4268c0a	374
b0e6f864	375	ok $^S == 0 && defined $^S;
0bee926d	376	eval { ok $^S == 1 };
b0e6f864	377	eval " BEGIN { ok ! defined \$^S } ";
b0e6f864	378	ok $^S == 0 && defined $^S;
7c36658b	379
	380	ok ${^TAINT} == 0;
	381	eval { ${^TAINT} = 1 };
	382	ok ${^TAINT} == 0;
9aa702ec	383
	384	# 5.6.1 had a bug: @+ and @- were not properly interpolated
	385	# into double-quoted strings
	386	# 20020414 mjd-perl-patch+@plover.com
b64ebf53	387	"I like pie" =~ /(I) (like) (pie)/;
	388	ok "@-" eq "0 0 2 7";
	389	ok "@+" eq "10 1 6 10";
9aa702ec	390
f28098ff	391	# Tests for the magic get of $\
	392	{
	393	my $ok = 0;
	394	# [perl #19330]
	395	{
	396	local $\ = undef;
	397	$\++; $\++;
	398	$ok = $\ eq 2;
	399	}
	400	ok $ok;
	401	$ok = 0;
	402	{
	403	local $\ = "a\0b";
	404	$ok = "a$\b" eq "aa\0bb";
	405	}
	406	ok $ok;
	407	}