11 # Test that defined() returns true for magic variables created on the fly,
12 # even before they have been created.
13 # This must come first, even before turning on warnings or setting up
14 # $SIG{__WARN__}, to avoid invalidating the tests. warnings.pm currently
15 # does not mention any special variables, but that could easily change.
17 # not available in miniperl
18 my %non_mini = map { $_ => 1 } qw(+ - [);
20 SIG ^OPEN ^TAINT ^UNICODE ^UTF8LOCALE ^WARNING_BITS 1 2 3 4 5 6 7 8
21 9 42 & ` ' : ? ! _ - [ ^ ~ = % . ( ) < > \ / $ | + ; ] ^A ^C ^D
22 ^E ^F ^H ^I ^L ^N ^O ^P ^S ^T ^V ^W ^UTF8CACHE ::12345 main::98732
26 # avoid using any global vars here:
27 if ($v =~ s/^\^(?=.)//) {
28 for(substr $v, 0, 1) {
34 skip_if_miniperl("the module for *$_ may not be available in "
35 . "miniperl", 1) if $non_mini{$_};
36 ok defined *$v, "*$_ appears to be defined at the outset";
41 # This must be in a separate BEGIN block, as the mere mention of ${^TAINT}
42 # will invalidate the test for it.
44 $ENV{PATH} = '/bin' if ${^TAINT};
45 $SIG{__WARN__} = sub { die "Dying on warning: ", @_ };
52 $Is_MSWin32 = $^O eq 'MSWin32';
53 $Is_NetWare = $^O eq 'NetWare';
54 $Is_VMS = $^O eq 'VMS';
55 $Is_Dos = $^O eq 'dos';
56 $Is_os2 = $^O eq 'os2';
57 $Is_Cygwin = $^O eq 'cygwin';
60 ($Is_NetWare ? 'perl' :
62 $Is_MSWin32 ? '.\perl' :
66 my ($key, $val, $desc) = @_;
68 use open IN => ":raw";
70 # cmd.exe will echo 'variable=value' but 4nt will echo just the value
73 my $cp = Win32::GetConsoleOutputCP();
74 Win32::SetConsoleOutputCP(Win32::GetACP());
75 (my $set = `set $key 2>nul`) =~ s/\r\n$/\n/;
76 Win32::SetConsoleOutputCP($cp);
77 like $set, qr/^(?:\Q$key\E=)?\Q$val\E$/, $desc;
79 my $eqv = `write sys\$output f\$trnlnm("\Q$key\E")`;
80 # A single null byte in the equivalence string means
81 # an undef value for Perl, so mimic that here.
82 $eqv = "\n" if length($eqv) == 2 and $eqv eq "\000\n";
83 is $eqv, "$val\n", $desc;
85 chomp (my @env = grep { s/^$key=// } `env`);
86 is "@env", $val, $desc;
91 # On VMS, environment variable changes are peristent after perl exits
94 delete $ENV{'__NoNeSuCh'};
95 delete $ENV{'__NoNeSuCh2'};
99 eval '$ENV{"FOO"} = "hi there";'; # check that ENV is inited inside eval
100 # cmd.exe will echo 'variable=value' but 4nt will echo just the value
102 if ($Is_MSWin32) { like `set FOO`, qr/^(?:FOO=)?hi there$/; }
103 elsif ($Is_VMS) { is `write sys\$output f\$trnlnm("FOO")`, "hi there\n"; }
104 else { is `echo \$FOO`, "hi there\n"; }
106 unlink_all 'ajslkdfpqjsjfk';
108 open(FOO,'ajslkdfpqjsjfk');
110 close FOO; # just mention it, squelch used-only-once
113 skip('SIGINT not safe on this platform', 5)
114 if $Is_MSWin32 || $Is_NetWare || $Is_Dos;
115 # the next tests are done in a subprocess because sh spits out a
116 # newline onto stderr when a child process kills itself with SIGINT.
117 # We use a pipe rather than system() because the VMS command buffer
118 # would overflow with a command that long.
120 # For easy interpolation of test numbers:
121 $next_test = curr_test() - 1;
122 sub TIEARRAY {bless[]}
123 sub FETCH { $next_test + pop }
124 tie my @tn, __PACKAGE__;
126 open( CMDPIPE, "| $PERL");
128 print CMDPIPE "\$t1 = $tn[1]; \$t2 = $tn[2];\n", <<'END';
130 $| = 1; # command buffering
132 $SIG{"INT"} = "ok1"; kill "INT",$$; sleep 1;
133 $SIG{"INT"} = "IGNORE"; kill "INT",$$; sleep 1; print "ok $t2\n";
134 $SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print" not ok $t2\n";
137 if (($x = pop(@_)) eq "INT") {
141 print "not ok $t1 ($x @_)\n";
149 open( CMDPIPE, "| $PERL");
150 print CMDPIPE "\$t3 = $tn[3];\n", <<'END';
161 $| = 1; # command buffering
164 local $SIG{"INT"}=x();
165 print ""; # Needed to expose failure in 5.8.0 (why?)
169 kill "INT",$$; sleep 1;
175 $? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte
176 my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : '');
177 print $? & 0xFF ? "ok $tn[4]$todo\n" : "not ok $tn[4]$todo\n";
179 open(CMDPIPE, "| $PERL");
180 print CMDPIPE <<'END';
182 sub PVBM () { 'foo' }
189 kill "INT", $$; sleep 1;
192 $? >>= 8 if $^O eq 'VMS';
193 print $? ? "not ok $tn[5]\n" : "ok $tn[5]\n";
195 curr_test(curr_test() + 5);
199 @val1 = @ENV{keys(%ENV)};
200 @val2 = values(%ENV);
201 is join(':',@val1), join(':',@val2);
202 cmp_ok @val1, '>', 1;
205 is runperl(prog => 'delete $::{ENV}; chdir; print qq-ok\n-'), "ok\n",
209 'foobarbaz' =~ /b(a)r/;
218 qq < \@$_; q "fff" =~ /(?!^)./; print "[\$$_]\\n" >,
220 "referencing \@$_ before \$$_ etc. still saws off ampersands";
224 @a = qw(foo bar baz);
225 is "@a", "foo bar baz";
228 is "@a", "foo,bar,baz";
233 $h{'foo', 'bar'} = 1;
234 is((keys %h)[0], "foo\034bar");
238 $h{'foo', 'bar'} = 1;
239 is((keys %h)[0], 'fooxbar');
243 system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(0)"];
245 system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(1)"];
248 eval { die "foo\n" };
251 ok !*@{HASH}, 'no %@';
256 is $$, 42, '$$ can be modified';
258 skip "no fork", 1 unless $Config{d_fork};
259 (my $kidpid = open my $fh, "-|") // skip "cannot fork: $!", 1;
260 if($kidpid) { # parent
261 my $kiddollars = <$fh>;
262 close $fh or die "cannot close pipe from kid proc: $!";
263 is $kiddollars, $kidpid, '$$ is reset on fork';
267 $::NO_ENDING = 1; # silence "Looks like you only ran..."
271 $$ = $pid; # Tests below use $$
275 my $is_abs = $Config{d_procselfexe} || $Config{usekernprocpathname}
276 || $Config{usensgetexecutablepath};
278 chomp($wd = `/usr/bin/fullpath -t`);
280 elsif($Is_Cygwin || $is_abs) {
281 # Cygwin turns the symlink into the real file
284 $wd =~ /(.*)/; $wd = $1; # untaint
286 $wd = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($wd, 1));
290 $wd = Cwd::sys_cwd();
295 my $perl = $Is_VMS || $is_abs ? $^X : "$wd/perl";
297 my $middlemaybe = '';
299 $script = "$wd/show-shebang";
303 $perl = "$wd/perl.exe";
304 $script = "$wd/show-shebang.bat";
319 $script = "./show-shebang";
322 $script = "[]show-shebang";
325 $middlemaybe = <<'EOX'
326 $^X = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($^X, 1));
327 $0 = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($0, 1));
330 if ($^O eq 'os390' or $^O eq 'posix-bc') { # no shebang
332 eval 'exec ./perl -S \$0 \${1+"\$\@"}'
336 $s1 = "\$^X is $perl, \$0 is $script\n";
337 ok open(SCRIPT, ">$script") or diag "Can't write to $script: $!";
338 ok print(SCRIPT $headmaybe . <<EOB . $middlemaybe . <<'EOF' . $tailmaybe) or diag $!;
341 print "\$^X is $^X, \$0 is $0\n";
343 ok close(SCRIPT) or diag $!;
344 ok chmod(0755, $script) or diag $!;
345 $_ = $Is_VMS ? `$perl $script` : `$script`;
346 s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
347 s{is perl}{is $perl}; # for systems where $^X is only a basename
349 if ($Is_MSWin32 || $Is_os2) {
354 skip "# TODO: Hit bug posix-2058; exec does not setup argv[0] correctly." if ($^O eq "vos");
358 $_ = `$perl $script`;
359 s/\.exe//i if $Is_Dos or $Is_os2 or $Is_Cygwin;
361 if ($Is_MSWin32 || $Is_os2) {
366 ok unlink($script) or diag $!;
368 # Could this be replaced with:
369 # unlink_all($script);
373 cmp_ok $], '>=', 5.00319;
375 cmp_ok $^T, '>', 850000000;
377 # Test change 25062 is working
378 my $orig_osname = $^O;
381 is $^O, $orig_osname, 'Assigning $^I does not clobber $^O';
387 foreach my $p (0, 1) {
388 fresh_perl_is(<<"EOP", '2 4 8', undef, "test \$^P = $p");
393 print "\$DB::single \$DB::trace \$DB::signal";
398 # Check that assigning to $0 on Linux sets the process name with both
399 # argv[0] assignment and by calling prctl()
402 skip "We don't have prctl() here", 2 unless $Config{d_prctl_set_name};
404 # We don't really need these tests. prctl() is tested in the
405 # Kernel, but test it anyway for our sanity. If something doesn't
406 # work (like if the system doesn't have a ps(1) for whatever
407 # reason) just bail out gracefully.
414 skip "Couldn't shell out to '$cmd', returned code $?", 2 if $?;
418 my $name = "Good Morning, Dave";
421 chomp(my $argv0 = $maybe_ps->("ps h $$"));
422 chomp(my $prctl = $maybe_ps->("ps hc $$"));
424 like($argv0, $name, "Set process name through argv[0] ($argv0)");
425 like($prctl, substr($name, 0, 15), "Set process name through prctl() ($prctl)");
432 local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; $warn =~ s/\n$//; };
434 local $TODO = $Is_VMS ? "'\$!=undef' does throw a warning" : '';
439 skip_if_miniperl("miniperl can't rely on loading %Errno", 2);
442 # Make sure Errno hasn't been prematurely autoloaded
446 # Test auto-loading of Errno when %! is used
455 skip_if_miniperl("miniperl can't rely on loading %Errno", 2);
456 # Make sure that Errno loading doesn't clobber $!
459 delete $INC{"Errno.pm"};
461 open(FOO, "nonesuch"); # Generate ENOENT
462 my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
465 # Make sure defined(*{"!"}) before %! does not stop %! from working
468 prog => 'BEGIN { defined *{q-!-} } print qq-ok\n- if tied %!',
471 'defined *{"!"} does not stop %! from working';
474 # Check that we don't auto-load packages
475 foreach (['powie::!', 'Errno'],
476 ['powie::+', 'Tie::Hash::NamedCapture']) {
477 my ($symbol, $package) = @$_;
479 (my $extension = $package) =~ s|::|/|g;
480 skip "$package is statically linked", 2
481 if $Config{static_ext} =~ m|\b\Q$extension\E\b|;
482 foreach my $scalar_first ('', '$$symbol;') {
483 my $desc = qq{Referencing %{"$symbol"}};
484 $desc .= qq{ after mentioning \${"$symbol"}} if $scalar_first;
485 $desc .= " doesn't load $package";
487 fresh_perl_is(<<"EOP", 0, {}, $desc);
488 use strict qw(vars subs);
489 my \$symbol = '$symbol';
492 print scalar %${package}::;
500 eval " BEGIN { ok ! defined \$^S } ";
503 my $taint = ${^TAINT};
504 is ${^TAINT}, $taint;
505 eval { ${^TAINT} = 1 };
506 is ${^TAINT}, $taint;
508 # 5.6.1 had a bug: @+ and @- were not properly interpolated
509 # into double-quoted strings
510 # 20020414 mjd-perl-patch+@plover.com
511 "I like pie" =~ /(I) (like) (pie)/;
513 is "@+", "10 1 6 10";
515 # Tests for the magic get of $\
528 $ok = "a$\b" eq "aa\0bb";
533 # Test for bug [perl #36434]
534 # Can not do this test on VMS, and SYMBIAN according to comments
535 # in mg.c/Perl_magic_clear_all_env()
537 skip('Can\'t make assignment to \%ENV on this system', 3) if $Is_VMS;
541 # This used to be __PACKAGE__, but that causes recursive
542 # inheritance, which is detected earlier now and broke
544 eval { push @ISA, __FILE__ };
545 is $@, '', 'Push a constant on a magic array';
547 eval { %ENV = (PATH => __PACKAGE__) };
548 is $@, '', 'Assign a constant to a magic hash';
550 eval { my %h = qw(A B); %ENV = (PATH => (keys %h)[0]) };
551 is $@, '', 'Assign a shared key to a magic hash';
555 # Tests for Perl_magic_clearsig
556 foreach my $sig (qw(__WARN__ INT)) {
557 $SIG{$sig} = lc $sig;
558 is $SIG{$sig}, 'main::' . lc $sig, "Can assign to $sig";
559 is delete $SIG{$sig}, 'main::' . lc $sig, "Can delete from $sig";
560 is $SIG{$sig}, undef, "$sig is now gone";
561 is delete $SIG{$sig}, undef, "$sig remains gone";
564 # And now one which doesn't exist;
566 no warnings 'signal';
567 $SIG{HUNGRY} = 'mmm, pie';
569 is $SIG{HUNGRY}, 'mmm, pie', 'Can assign to HUNGRY';
570 is delete $SIG{HUNGRY}, 'mmm, pie', 'Can delete from HUNGRY';
571 is $SIG{HUNGRY}, undef, "HUNGRY is now gone";
572 is delete $SIG{HUNGRY}, undef, "HUNGRY remains gone";
574 # Test deleting signals that we never set
575 foreach my $sig (qw(__DIE__ _BOGUS_HOOK KILL THIRSTY)) {
576 is $SIG{$sig}, undef, "$sig is not present";
577 is delete $SIG{$sig}, undef, "delete of $sig returns undef";
582 is int $!, 9999, q{[perl #72850] Core dump in bleadperl from perl -e '$! = 9999; $a = $!;'};
588 skip_if_miniperl("No XS in miniperl", 2);
589 # Make sure defined(*{"+"}) before %+ does not stop %+ from working
592 prog => 'BEGIN { defined *{q-+-} } print qq-ok\n- if tied %+',
595 'defined *{"+"} does not stop %+ from working';
598 prog => 'BEGIN { defined *{q=-=} } print qq-ok\n- if tied %-',
601 'defined *{"-"} does not stop %- from working';
605 skip_if_miniperl("No XS in miniperl", 3);
607 for ( [qw( %- Tie::Hash::NamedCapture )], [qw( $[ arybase )],
609 my ($var, $mod) = @$_;
610 my $modfile = $mod =~ s|::|/|gr . ".pm";
612 qq 'sub UNIVERSAL::AUTOLOAD{}
615 print "ok\\n" if \$INC{"$modfile"}',
617 { switches => [ '-X' ] },
618 "$var still loads $mod when stash and UNIVERSAL::AUTOLOAD exist";
624 is ${^LAST_FH}, \*STDOUT, '${^LAST_FH} after tell';
626 is ${^LAST_FH}, \*STDIN, '${^LAST_FH} after another tell';
630 is ${^LAST_FH}, \$fh, '${^LAST_FH} referencing lexical coercible glob';
632 # This also tests that ${^LAST_FH} is a weak reference:
633 is ${^LAST_FH}, undef, '${^LAST_FH} is undef when PL_last_in_gv is NULL';
637 fresh_perl_is 'print $| = ~$|', "1\n", {switches => ['-l']},
638 '[perl #4760] print $| = ~$|';
640 'select f; undef *f; ${q/|/}; print STDOUT qq|ok\n|', "ok\n", {},
641 '[perl #115206] no crash when vivifying $| while *{+select}{IO} is undef';
643 # ${^OPEN} and $^H interaction
644 # Setting ${^OPEN} causes $^H to change, but setting $^H would only some-
645 # times make ${^OPEN} change, depending on whether it was in the same BEGIN
646 # block. Don’t test actual values (subject to change); just test for
650 BEGIN { ${^OPEN} = "a\0b"; $^H = 0; push @stuff, ${^OPEN} }
651 BEGIN { ${^OPEN} = "a\0b"; $^H = 0 } BEGIN { push @stuff, ${^OPEN} }
653 is $stuff[0], $stuff[1], '$^H modifies ${^OPEN} consistently';
655 # deleting $::{"\cH"}
656 is runperl(prog => 'delete $::{qq-\cH-}; ${^OPEN}=foo; print qq-ok\n-'),
658 'deleting $::{"\cH"}';
660 # Tests for some non-magic names:
661 is ${^MPE}, undef, '${^MPE} starts undefined';
662 is ++${^MPE}, 1, '${^MPE} can be incremented';
664 # This one used to behave as ${^MATCH} due to a missing break:
665 is ${^MPEN}, undef, '${^MPEN} starts undefined';
666 # This one used to croak due to that missing break:
667 is ++${^MPEN}, 1, '${^MPEN} can be incremented';
669 # ^^^^^^^^^ New tests go here ^^^^^^^^^
672 skip("%ENV manipulations fail or aren't safe on $^O", 19)
676 skip("clearing \%ENV is not safe when running under valgrind or on VMS")
677 if $ENV{PERL_VALGRIND} || $Is_VMS;
680 $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0;
684 $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0;
686 is `set foo 2>NUL`, "";
688 is `echo \$foo`, "\n";
692 $ENV{__NoNeSuCh} = 'foo';
694 env_is(__NoNeSuCh => 'foo', 'setting $0 does not break %ENV');
696 $ENV{__NoNeSuCh2} = 'foo';
697 $ENV{__NoNeSuCh2} = undef;
698 env_is(__NoNeSuCh2 => '', 'setting a key as undef does not delete it');
702 env_is(foo => '*main::TODO', 'ENV store of stringified glob');
707 env_is(foo => "$ref", 'ENV store of stringified ref');
709 # downgrade utf8 when possible
710 $bytes = "eh zero \x{A0}";
711 utf8::upgrade($chars = $bytes);
712 $forced = $ENV{foo} = $chars;
713 ok(!utf8::is_utf8($forced) && $forced eq $bytes, 'ENV store downgrades utf8 in SV');
714 env_is(foo => $bytes, 'ENV store downgrades utf8 in setenv');
716 # warn when downgrading utf8 is not possible
717 $chars = "X-Day \x{1998}";
718 utf8::encode($bytes = $chars);
721 local $SIG{__WARN__} = sub { ++$warned if $_[0] =~ /^Wide character in setenv/; print "# @_" };
722 $forced = $ENV{foo} = $chars;
723 ok($warned == 1, 'ENV store warns about wide characters');
725 ok(!utf8::is_utf8($forced) && $forced eq $bytes, 'ENV store encodes high utf8 in SV');
726 env_is(foo => $bytes, 'ENV store encodes high utf8 in SV');
728 # test local $ENV{foo} on existing foo
730 local $ENV{__NoNeSuCh};
731 { local $TODO = 'exists on %ENV should reflect real env';
732 ok(!exists $ENV{__NoNeSuCh}, 'not exists $ENV{existing} during local $ENV{existing}'); }
733 env_is(__NoNeLoCaL => '');
735 ok(exists $ENV{__NoNeSuCh}, 'exists $ENV{existing} after local $ENV{existing}');
736 env_is(__NoNeSuCh => 'foo');
738 # test local $ENV{foo} on new foo
740 local $ENV{__NoNeLoCaL} = 'foo';
741 ok(exists $ENV{__NoNeLoCaL}, 'exists $ENV{new} during local $ENV{new}');
742 env_is(__NoNeLoCaL => 'foo');
744 ok(!exists $ENV{__NoNeLoCaL}, 'not exists $ENV{new} after local $ENV{new}');
745 env_is(__NoNeLoCaL => '');
748 skip("\$0 check only on Linux and FreeBSD", 2)
749 unless $^O =~ /^(linux|freebsd)$/
750 && open CMDLINE, "/proc/$$/cmdline";
752 chomp(my $line = scalar <CMDLINE>);
753 my $me = (split /\0/, $line)[0];
754 is $me, $0, 'altering $0 is effective (testing with /proc/)';
757 my $mydollarzero = sub {
759 $0 = $arg if defined $arg;
760 # In FreeBSD the ps -o command= will cause
761 # an empty header line, grab only the last line.
762 my $ps = (`ps -o command= -p $$`)[-1];
765 printf "# 0[%s]ps[%s]\n", $0, $ps;
768 my $ps = $mydollarzero->("x");
769 ok(!$ps # we allow that something goes wrong with the ps command
770 # In Linux 2.4 we would get an exact match ($ps eq 'x') but
771 # in Linux 2.2 there seems to be something funny going on:
772 # it seems as if the original length of the argv[] would
773 # be stored in the proc struct and then used by ps(1),
774 # no matter what characters we use to pad the argv[].
775 # (And if we use \0:s, they are shown as spaces.) Sigh.
777 # FreeBSD cannot get rid of both the leading "perl :"
778 # and the trailing " (perl)": some FreeBSD versions
779 # can get rid of the first one.
780 || ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/),
781 'altering $0 is effective (testing with `ps`)');
785 # test case-insignificance of %ENV (these tests must be enabled only
786 # when perl is compiled with -DENV_IS_CASELESS)
788 skip('no caseless %ENV support', 4) unless $Is_MSWin32 || $Is_NetWare;
793 is scalar(keys(%ENV)), 1;
794 ok exists $ENV{'FOo'};
795 is delete $ENV{'foO'}, 'baz';
796 is scalar(keys(%ENV)), 0;
801 # Put new tests before the various ENV tests, as they blow %ENV away.