xref: /openbsd-src/gnu/usr.bin/perl/t/op/magic.t (revision 7bfa9f444b545f1bc96a4b2919ed2583bf07c7ea)
1#!./perl
2
3BEGIN {
4    $| = 1;
5    chdir 't' if -d 't';
6    @INC = '../lib';
7    $SIG{__WARN__} = sub { die "Dying on warning: ", @_ };
8}
9
10use warnings;
11use Config;
12
13my $test = 1;
14sub ok {
15    my($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];
23        print  "# $info\n" if defined $info;
24    }
25
26    $test++;
27    return $ok;
28}
29
30sub skip {
31    my($reason) = @_;
32
33    printf "ok $test # skipped%s\n", defined $reason ? ": $reason" : '';
34
35    $test++;
36    return 1;
37}
38
39print "1..58\n";
40
41$Is_MSWin32  = $^O eq 'MSWin32';
42$Is_NetWare  = $^O eq 'NetWare';
43$Is_VMS      = $^O eq 'VMS';
44$Is_Dos      = $^O eq 'dos';
45$Is_os2      = $^O eq 'os2';
46$Is_Cygwin   = $^O eq 'cygwin';
47$Is_MacOS    = $^O eq 'MacOS';
48$Is_MPE      = $^O eq 'mpeix';
49$Is_miniperl = $ENV{PERL_CORE_MINITEST};
50$Is_BeOS     = $^O eq 'beos';
51
52$PERL = $ENV{PERL}
53    || ($Is_NetWare           ? 'perl'   :
54       ($Is_MacOS || $Is_VMS) ? $^X      :
55       $Is_MSWin32            ? '.\perl' :
56       './perl');
57
58eval '$ENV{"FOO"} = "hi there";';	# check that ENV is inited inside eval
59# cmd.exe will echo 'variable=value' but 4nt will echo just the value
60# -- Nikola Knezevic
61if ($Is_MSWin32)  { ok `set FOO` =~ /^(?:FOO=)?hi there$/; }
62elsif ($Is_MacOS) { ok "1 # skipped", 1; }
63elsif ($Is_VMS)   { ok `write sys\$output f\$trnlnm("FOO")` eq "hi there\n"; }
64else              { ok `echo \$FOO` eq "hi there\n"; }
65
66unlink 'ajslkdfpqjsjfk';
67$! = 0;
68open(FOO,'ajslkdfpqjsjfk');
69ok $!, $!;
70close FOO; # just mention it, squelch used-only-once
71
72if ($Is_MSWin32 || $Is_NetWare || $Is_Dos || $Is_MPE || $Is_MacOS) {
73    skip('SIGINT not safe on this platform') for 1..4;
74}
75else {
76  # the next tests are done in a subprocess because sh spits out a
77  # newline onto stderr when a child process kills itself with SIGINT.
78  # We use a pipe rather than system() because the VMS command buffer
79  # would overflow with a command that long.
80
81    open( CMDPIPE, "| $PERL");
82
83    print CMDPIPE <<'END';
84
85    $| = 1;		# command buffering
86
87    $SIG{"INT"} = "ok3";     kill "INT",$$; sleep 1;
88    $SIG{"INT"} = "IGNORE";  kill "INT",$$; sleep 1; print "ok 4\n";
89    $SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print "not ok 4\n";
90
91    sub ok3 {
92	if (($x = pop(@_)) eq "INT") {
93	    print "ok 3\n";
94	}
95	else {
96	    print "not ok 3 ($x @_)\n";
97	}
98    }
99
100END
101
102    close CMDPIPE;
103
104    open( CMDPIPE, "| $PERL");
105    print CMDPIPE <<'END';
106
107    { package X;
108	sub DESTROY {
109	    kill "INT",$$;
110	}
111    }
112    sub x {
113	my $x=bless [], 'X';
114	return sub { $x };
115    }
116    $| = 1;		# command buffering
117    $SIG{"INT"} = "ok5";
118    {
119	local $SIG{"INT"}=x();
120	print ""; # Needed to expose failure in 5.8.0 (why?)
121    }
122    sleep 1;
123    delete $SIG{"INT"};
124    kill "INT",$$; sleep 1;
125    sub ok5 {
126	print "ok 5\n";
127    }
128END
129    close CMDPIPE;
130    $? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte
131    my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : '');
132    print $? & 0xFF ? "ok 6$todo\n" : "not ok 6$todo\n";
133
134    $test += 4;
135}
136
137# can we slice ENV?
138@val1 = @ENV{keys(%ENV)};
139@val2 = values(%ENV);
140ok join(':',@val1) eq join(':',@val2);
141ok @val1 > 1;
142
143# regex vars
144'foobarbaz' =~ /b(a)r/;
145ok $` eq 'foo', $`;
146ok $& eq 'bar', $&;
147ok $' eq 'baz', $';
148ok $+ eq 'a', $+;
149
150# $"
151@a = qw(foo bar baz);
152ok "@a" eq "foo bar baz", "@a";
153{
154    local $" = ',';
155    ok "@a" eq "foo,bar,baz", "@a";
156}
157
158# $;
159%h = ();
160$h{'foo', 'bar'} = 1;
161ok((keys %h)[0] eq "foo\034bar", (keys %h)[0]);
162{
163    local $; = 'x';
164    %h = ();
165    $h{'foo', 'bar'} = 1;
166    ok((keys %h)[0] eq 'fooxbar', (keys %h)[0]);
167}
168
169# $?, $@, $$
170if ($Is_MacOS) {
171    skip('$? + system are broken on MacPerl') for 1..2;
172}
173else {
174    system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(0)"];
175    ok $? == 0, $?;
176    system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(1)"];
177    ok $? != 0, $?;
178}
179
180eval { die "foo\n" };
181ok $@ eq "foo\n", $@;
182
183ok $$ > 0, $$;
184eval { $$++ };
185ok $@ =~ /^Modification of a read-only value attempted/;
186
187# $^X and $0
188{
189    if ($^O eq 'qnx') {
190	chomp($wd = `/usr/bin/fullpath -t`);
191    }
192    elsif($Is_Cygwin || $Config{'d_procselfexe'}) {
193       # Cygwin turns the symlink into the real file
194       chomp($wd = `pwd`);
195       $wd =~ s#/t$##;
196       if ($Is_Cygwin) {
197	   $wd = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($wd, 1));
198       }
199    }
200    elsif($Is_os2) {
201       $wd = Cwd::sys_cwd();
202    }
203    elsif($Is_MacOS) {
204       $wd = ':';
205    }
206    else {
207	$wd = '.';
208    }
209    my $perl = ($Is_MacOS || $Is_VMS) ? $^X : "$wd/perl";
210    my $headmaybe = '';
211    my $middlemaybe = '';
212    my $tailmaybe = '';
213    $script = "$wd/show-shebang";
214    if ($Is_MSWin32) {
215	chomp($wd = `cd`);
216	$wd =~ s|\\|/|g;
217	$perl = "$wd/perl.exe";
218	$script = "$wd/show-shebang.bat";
219	$headmaybe = <<EOH ;
220\@rem ='
221\@echo off
222$perl -x \%0
223goto endofperl
224\@rem ';
225EOH
226	$tailmaybe = <<EOT ;
227
228__END__
229:endofperl
230EOT
231    }
232    elsif ($Is_os2) {
233      $script = "./show-shebang";
234    }
235    elsif ($Is_MacOS) {
236      $script = ":show-shebang";
237    }
238    elsif ($Is_VMS) {
239      $script = "[]show-shebang";
240    }
241    elsif ($Is_Cygwin) {
242      $middlemaybe = <<'EOX'
243$^X = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($^X, 1));
244$0 = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($0, 1));
245EOX
246    }
247    if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'vmesa') {  # no shebang
248	$headmaybe = <<EOH ;
249    eval 'exec ./perl -S \$0 \${1+"\$\@"}'
250        if 0;
251EOH
252    }
253    $s1 = "\$^X is $perl, \$0 is $script\n";
254    ok open(SCRIPT, ">$script"), $!;
255    ok print(SCRIPT $headmaybe . <<EOB . $middlemaybe . <<'EOF' . $tailmaybe), $!;
256#!$wd/perl
257EOB
258print "\$^X is $^X, \$0 is $0\n";
259EOF
260    ok close(SCRIPT), $!;
261    ok chmod(0755, $script), $!;
262    $_ = ($Is_MacOS || $Is_VMS) ? `$perl $script` : `$script`;
263    s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
264    s{./$script}{$script} if $Is_BeOS; # revert BeOS execvp() side-effect
265    s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
266    s{is perl}{is $perl}; # for systems where $^X is only a basename
267    s{\\}{/}g;
268    ok((($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1:");
269    $_ = `$perl $script`;
270    s/\.exe//i if $Is_Dos or $Is_os2 or $Is_Cygwin;
271    s{./$perl}{$perl} if $Is_BeOS; # revert BeOS execvp() side-effect
272    s{\\}{/}g;
273    ok((($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1: after `$perl $script`");
274    ok unlink($script), $!;
275}
276
277# $], $^O, $^T
278ok $] >= 5.00319, $];
279ok $^O;
280ok $^T > 850000000, $^T;
281
282# Test change 25062 is working
283my $orig_osname = $^O;
284{
285local $^I = '.bak';
286ok($^O eq $orig_osname, 'Assigning $^I does not clobber $^O');
287}
288$^O = $orig_osname;
289
290if ($Is_VMS || $Is_Dos || $Is_MacOS) {
291    skip("%ENV manipulations fail or aren't safe on $^O") for 1..4;
292}
293else {
294	if ($ENV{PERL_VALGRIND}) {
295	    skip("clearing \%ENV is not safe when running under valgrind");
296	} else {
297	    $PATH = $ENV{PATH};
298	    $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0;
299	    $ENV{foo} = "bar";
300	    %ENV = ();
301	    $ENV{PATH} = $PATH;
302	    $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0;
303	    ok ($Is_MSWin32 ? (`set foo 2>NUL` eq "")
304			    : (`echo \$foo` eq "\n") );
305	}
306
307	$ENV{__NoNeSuCh} = "foo";
308	$0 = "bar";
309# cmd.exe will echo 'variable=value' but 4nt will echo just the value
310# -- Nikola Knezevic
311       ok ($Is_MSWin32 ? (`set __NoNeSuCh` =~ /^(?:__NoNeSuCh=)?foo$/)
312			    : (`echo \$__NoNeSuCh` eq "foo\n") );
313	if ($^O =~ /^(linux|freebsd)$/ &&
314	    open CMDLINE, "/proc/$$/cmdline") {
315	    chomp(my $line = scalar <CMDLINE>);
316	    my $me = (split /\0/, $line)[0];
317	    ok($me eq $0, 'altering $0 is effective (testing with /proc/)');
318	    close CMDLINE;
319            # perlbug #22811
320            my $mydollarzero = sub {
321              my($arg) = shift;
322              $0 = $arg if defined $arg;
323	      # In FreeBSD the ps -o command= will cause
324	      # an empty header line, grab only the last line.
325              my $ps = (`ps -o command= -p $$`)[-1];
326              return if $?;
327              chomp $ps;
328              printf "# 0[%s]ps[%s]\n", $0, $ps;
329              $ps;
330            };
331            my $ps = $mydollarzero->("x");
332            ok(!$ps  # we allow that something goes wrong with the ps command
333	       # In Linux 2.4 we would get an exact match ($ps eq 'x') but
334	       # in Linux 2.2 there seems to be something funny going on:
335	       # it seems as if the original length of the argv[] would
336	       # be stored in the proc struct and then used by ps(1),
337	       # no matter what characters we use to pad the argv[].
338	       # (And if we use \0:s, they are shown as spaces.)  Sigh.
339               || $ps =~ /^x\s*$/
340	       # FreeBSD cannot get rid of both the leading "perl :"
341	       # and the trailing " (perl)": some FreeBSD versions
342	       # can get rid of the first one.
343	       || ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/),
344		       'altering $0 is effective (testing with `ps`)');
345	} else {
346	    skip("\$0 check only on Linux and FreeBSD") for 0, 1;
347	}
348}
349
350{
351    my $ok = 1;
352    my $warn = '';
353    local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; };
354    $! = undef;
355    ok($ok, $warn, $Is_VMS ? "'\$!=undef' does throw a warning" : '');
356}
357
358# test case-insignificance of %ENV (these tests must be enabled only
359# when perl is compiled with -DENV_IS_CASELESS)
360if ($Is_MSWin32 || $Is_NetWare) {
361    %ENV = ();
362    $ENV{'Foo'} = 'bar';
363    $ENV{'fOo'} = 'baz';
364    ok (scalar(keys(%ENV)) == 1);
365    ok exists($ENV{'FOo'});
366    ok (delete($ENV{'foO'}) eq 'baz');
367    ok (scalar(keys(%ENV)) == 0);
368}
369else {
370    skip('no caseless %ENV support') for 1..4;
371}
372
373if ($Is_miniperl) {
374    skip ("miniperl can't rely on loading %Errno") for 1..2;
375} else {
376   no warnings 'void';
377
378# Make sure Errno hasn't been prematurely autoloaded
379
380   ok !keys %Errno::;
381
382# Test auto-loading of Errno when %! is used
383
384   ok scalar eval q{
385      %!;
386      defined %Errno::;
387   }, $@;
388}
389
390if ($Is_miniperl) {
391    skip ("miniperl can't rely on loading %Errno");
392} else {
393    # Make sure that Errno loading doesn't clobber $!
394
395    undef %Errno::;
396    delete $INC{"Errno.pm"};
397
398    open(FOO, "nonesuch"); # Generate ENOENT
399    my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
400    ok ${"!"}{ENOENT};
401}
402
403ok $^S == 0 && defined $^S;
404eval { ok $^S == 1 };
405eval " BEGIN { ok ! defined \$^S } ";
406ok $^S == 0 && defined $^S;
407
408ok ${^TAINT} == 0;
409eval { ${^TAINT} = 1 };
410ok ${^TAINT} == 0;
411
412# 5.6.1 had a bug: @+ and @- were not properly interpolated
413# into double-quoted strings
414# 20020414 mjd-perl-patch+@plover.com
415"I like pie" =~ /(I) (like) (pie)/;
416ok "@-" eq  "0 0 2 7";
417ok "@+" eq "10 1 6 10";
418
419# Tests for the magic get of $\
420{
421    my $ok = 0;
422    # [perl #19330]
423    {
424	local $\ = undef;
425	$\++; $\++;
426	$ok = $\ eq 2;
427    }
428    ok $ok;
429    $ok = 0;
430    {
431	local $\ = "a\0b";
432	$ok = "a$\b" eq "aa\0bb";
433    }
434    ok $ok;
435}
436
437# Test for bug [perl #27839]
438{
439    my $x;
440    sub f {
441	"abc" =~ /(.)./;
442	$x = "@+";
443	return @+;
444    };
445    my @y = f();
446    ok( $x eq "@y", "return a magic array ($x) vs (@y)" );
447}
448
449# Test for bug [perl #36434]
450if (!$Is_VMS) {
451    local @ISA;
452    local %ENV;
453    # This used to be __PACKAGE__, but that causes recursive
454    #  inheritance, which is detected earlier now and broke
455    #  this test
456    eval { push @ISA, __FILE__ };
457    ok( $@ eq '', 'Push a constant on a magic array');
458    $@ and print "# $@";
459    eval { %ENV = (PATH => __PACKAGE__) };
460    ok( $@ eq '', 'Assign a constant to a magic hash');
461    $@ and print "# $@";
462    eval { my %h = qw(A B); %ENV = (PATH => (keys %h)[0]) };
463    ok( $@ eq '', 'Assign a shared key to a magic hash');
464    $@ and print "# $@";
465}
466else {
467# Can not do this test on VMS, EPOC, and SYMBIAN according to comments
468# in mg.c/Perl_magic_clear_all_env()
469#
470    skip('Can\'t make assignment to \%ENV on this system') for 1..3;
471}
472