Small optimisations, by Brandon Black
[p5sagit/p5-mst-13.2.git] / t / op / magic.t
CommitLineData
8d063cd8 1#!./perl
2
90ce63d5 3BEGIN {
90ce63d5 4 $| = 1;
5 chdir 't' if -d 't';
20822f61 6 @INC = '../lib';
774d564b 7 $SIG{__WARN__} = sub { die "Dying on warning: ", @_ };
90ce63d5 8}
8d063cd8 9
9f1b1f2d 10use warnings;
04fee9b5 11use Config;
9f1b1f2d 12
0bee926d 13my $test = 1;
90ce63d5 14sub ok {
0bee926d 15 my($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 $ok;
28}
29
30sub skip {
31 my($reason) = @_;
32
33 printf "ok $test # skipped%s\n", defined $reason ? ": $reason" : '';
34
35 $test++;
36 return 1;
90ce63d5 37}
38
881ddac4 39print "1..58\n";
0bee926d 40
43651d81 41$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 = $ENV{PERL_CORE_MINITEST};
dbc1d986 50$Is_BeOS = $^O eq 'beos';
be708cc0 51
c8d62b71 52$PERL = $ENV{PERL}
53 || ($Is_NetWare ? 'perl' :
54 ($Is_MacOS || $Is_VMS) ? $^X :
55 $Is_MSWin32 ? '.\perl' :
56 './perl');
68dc0745 57
39e571d4 58eval '$ENV{"FOO"} = "hi there";'; # check that ENV is inited inside eval
26f6e342 59# cmd.exe will echo 'variable=value' but 4nt will echo just the value
60# -- Nikola Knezevic
8efe09f7 61if ($Is_MSWin32) { ok `set FOO` =~ /^(?:FOO=)?hi there$/; }
be708cc0 62elsif ($Is_MacOS) { ok "1 # skipped", 1; }
c363d00c 63elsif ($Is_VMS) { ok `write sys\$output f\$trnlnm("FOO")` eq "hi there\n"; }
be708cc0 64else { ok `echo \$FOO` eq "hi there\n"; }
8d063cd8 65
bf38876a 66unlink 'ajslkdfpqjsjfk';
8d063cd8 67$! = 0;
90ce63d5 68open(FOO,'ajslkdfpqjsjfk');
0bee926d 69ok $!, $!;
90ce63d5 70close FOO; # just mention it, squelch used-only-once
8d063cd8 71
be708cc0 72if ($Is_MSWin32 || $Is_NetWare || $Is_Dos || $Is_MPE || $Is_MacOS) {
2d4fcd5e 73 skip('SIGINT not safe on this platform') for 1..4;
68dc0745 74}
75else {
c363d00c 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.
04fee9b5 78 # We use a pipe rather than system() because the VMS command buffer
c363d00c 79 # would overflow with a command that long.
80
81 open( CMDPIPE, "| $PERL");
82
83 print CMDPIPE <<'END';
378cc40b 84
79072805 85 $| = 1; # command buffering
378cc40b 86
b715f106 87 $SIG{"INT"} = "ok3"; kill "INT",$$; sleep 1;
88 $SIG{"INT"} = "IGNORE"; kill "INT",$$; sleep 1; print "ok 4\n";
0bee926d 89 $SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print "not ok 4\n";
79072805 90
91 sub ok3 {
92 if (($x = pop(@_)) eq "INT") {
93 print "ok 3\n";
94 }
95 else {
652ed9f8 96 print "not ok 3 ($x @_)\n";
79072805 97 }
98 }
99
100END
c363d00c 101
102 close CMDPIPE;
103
2d4fcd5e 104 open( CMDPIPE, "| $PERL");
105 print CMDPIPE <<'END';
106
107 { package X;
108 sub DESTROY {
109 kill "INT",$$;
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",$$; sleep 1;
125 sub ok5 {
126 print "ok 5\n";
127 }
128END
129 close CMDPIPE;
bb4e15c8 130 $? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte
639cf43b 131 my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : '');
132 print $? & 0xFF ? "ok 6$todo\n" : "not ok 6$todo\n";
2d4fcd5e 133
134 $test += 4;
68dc0745 135}
a687059c 136
68dc0745 137# can we slice ENV?
138@val1 = @ENV{keys(%ENV)};
a687059c 139@val2 = values(%ENV);
0bee926d 140ok join(':',@val1) eq join(':',@val2);
141ok @val1 > 1;
90ce63d5 142
143# regex vars
144'foobarbaz' =~ /b(a)r/;
0bee926d 145ok $` eq 'foo', $`;
146ok $& eq 'bar', $&;
147ok $' eq 'baz', $';
148ok $+ eq 'a', $+;
90ce63d5 149
150# $"
151@a = qw(foo bar baz);
0bee926d 152ok "@a" eq "foo bar baz", "@a";
90ce63d5 153{
154 local $" = ',';
0bee926d 155 ok "@a" eq "foo,bar,baz", "@a";
90ce63d5 156}
a687059c 157
90ce63d5 158# $;
159%h = ();
160$h{'foo', 'bar'} = 1;
0bee926d 161ok((keys %h)[0] eq "foo\034bar", (keys %h)[0]);
90ce63d5 162{
163 local $; = 'x';
164 %h = ();
165 $h{'foo', 'bar'} = 1;
0bee926d 166 ok((keys %h)[0] eq 'fooxbar', (keys %h)[0]);
90ce63d5 167}
ed6116ce 168
90ce63d5 169# $?, $@, $$
dc459aad 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}
90ce63d5 179
180eval { die "foo\n" };
0bee926d 181ok $@ eq "foo\n", $@;
90ce63d5 182
0bee926d 183ok $$ > 0, $$;
306196c3 184eval { $$++ };
185ok $@ =~ /^Modification of a read-only value attempted/;
90ce63d5 186
187# $^X and $0
ed37317b 188{
3e3baf6d 189 if ($^O eq 'qnx') {
7fbf1995 190 chomp($wd = `/usr/bin/fullpath -t`);
68dc0745 191 }
04fee9b5 192 elsif($Is_Cygwin || $Config{'d_procselfexe'}) {
1cab015a 193 # Cygwin turns the symlink into the real file
194 chomp($wd = `pwd`);
195 $wd =~ s#/t$##;
196 }
ed344e4f 197 elsif($Is_os2) {
198 $wd = Cwd::sys_cwd();
199 }
be708cc0 200 elsif($Is_MacOS) {
201 $wd = ':';
202 }
68dc0745 203 else {
204 $wd = '.';
205 }
c363d00c 206 my $perl = ($Is_MacOS || $Is_VMS) ? $^X : "$wd/perl";
ed37317b 207 my $headmaybe = '';
208 my $tailmaybe = '';
68dc0745 209 $script = "$wd/show-shebang";
ed37317b 210 if ($Is_MSWin32) {
211 chomp($wd = `cd`);
8ac9c18d 212 $wd =~ s|\\|/|g;
213 $perl = "$wd/perl.exe";
214 $script = "$wd/show-shebang.bat";
ed37317b 215 $headmaybe = <<EOH ;
216\@rem ='
217\@echo off
218$perl -x \%0
219goto endofperl
220\@rem ';
221EOH
222 $tailmaybe = <<EOT ;
223
224__END__
225:endofperl
226EOT
227 }
ed344e4f 228 elsif ($Is_os2) {
229 $script = "./show-shebang";
230 }
be708cc0 231 elsif ($Is_MacOS) {
232 $script = ":show-shebang";
233 }
c363d00c 234 elsif ($Is_VMS) {
235 $script = "[]show-shebang";
be708cc0 236 }
a1a0e61e 237 if ($^O eq 'os390' or $^O eq 'posix-bc' or $^O eq 'vmesa') { # no shebang
9d116dd7 238 $headmaybe = <<EOH ;
239 eval 'exec ./perl -S \$0 \${1+"\$\@"}'
240 if 0;
241EOH
242 }
2eecd615 243 $s1 = "\$^X is $perl, \$0 is $script\n";
0bee926d 244 ok open(SCRIPT, ">$script"), $!;
245 ok print(SCRIPT $headmaybe . <<EOB . <<'EOF' . $tailmaybe), $!;
774d564b 246#!$wd/perl
247EOB
90ce63d5 248print "\$^X is $^X, \$0 is $0\n";
249EOF
0bee926d 250 ok close(SCRIPT), $!;
251 ok chmod(0755, $script), $!;
c363d00c 252 $_ = ($Is_MacOS || $Is_VMS) ? `$perl $script` : `$script`;
ed344e4f 253 s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2;
dbc1d986 254 s{./$script}{$script} if $Is_BeOS; # revert BeOS execvp() side-effect
68dc0745 255 s{\bminiperl\b}{perl}; # so that test doesn't fail with miniperl
ed37317b 256 s{is perl}{is $perl}; # for systems where $^X is only a basename
a6c40364 257 s{\\}{/}g;
0bee926d 258 ok((($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1:");
ed37317b 259 $_ = `$perl $script`;
4bbb7126 260 s/\.exe//i if $Is_Dos or $Is_os2 or $Is_Cygwin;
dbc1d986 261 s{./$perl}{$perl} if $Is_BeOS; # revert BeOS execvp() side-effect
a6c40364 262 s{\\}{/}g;
0bee926d 263 ok((($Is_MSWin32 || $Is_os2) ? uc($_) eq uc($s1) : $_ eq $s1), " :$_:!=:$s1: after `$perl $script`");
22fc9b38 264 ok unlink($script), $!;
68dc0745 265}
ed6116ce 266
90ce63d5 267# $], $^O, $^T
0bee926d 268ok $] >= 5.00319, $];
269ok $^O;
270ok $^T > 850000000, $^T;
66b1d557 271
881ddac4 272# Test change 25062 is working
273my $orig_osname = $^O;
274{
275local $^I = '.bak';
276ok($^O eq $orig_osname, 'Assigning $^I does not clobber $^O');
277}
278$^O = $orig_osname;
279
be708cc0 280if ($Is_VMS || $Is_Dos || $Is_MacOS) {
44d95355 281 skip("%ENV manipulations fail or aren't safe on $^O") for 1..4;
66b1d557 282}
283else {
da51b73c 284 if ($ENV{PERL_VALGRIND}) {
285 skip("clearing \%ENV is not safe when running under valgrind");
286 } else {
287 $PATH = $ENV{PATH};
288 $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0;
289 $ENV{foo} = "bar";
290 %ENV = ();
291 $ENV{PATH} = $PATH;
292 $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0;
293 ok ($Is_MSWin32 ? (`set foo 2>NUL` eq "")
294 : (`echo \$foo` eq "\n") );
295 }
3e3baf6d 296
ec00bdd8 297 $ENV{__NoNeSuCh} = "foo";
3e3baf6d 298 $0 = "bar";
26f6e342 299# cmd.exe will echo 'variable=value' but 4nt will echo just the value
300# -- Nikola Knezevic
8efe09f7 301 ok ($Is_MSWin32 ? (`set __NoNeSuCh` =~ /^(?:__NoNeSuCh=)?foo$/)
ec00bdd8 302 : (`echo \$__NoNeSuCh` eq "foo\n") );
09fdc078 303 if ($^O =~ /^(linux|freebsd)$/ &&
304 open CMDLINE, "/proc/$$/cmdline") {
305 chomp(my $line = scalar <CMDLINE>);
306 my $me = (split /\0/, $line)[0];
ecce83c2 307 ok($me eq $0, 'altering $0 is effective (testing with /proc/)');
09fdc078 308 close CMDLINE;
ecce83c2 309 # perlbug #22811
310 my $mydollarzero = sub {
311 my($arg) = shift;
312 $0 = $arg if defined $arg;
fbd3c14b 313 # In FreeBSD the ps -o command= will cause
314 # an empty header line, grab only the last line.
315 my $ps = (`ps -o command= -p $$`)[-1];
ecce83c2 316 return if $?;
317 chomp $ps;
318 printf "# 0[%s]ps[%s]\n", $0, $ps;
319 $ps;
320 };
321 my $ps = $mydollarzero->("x");
e26ae24d 322 ok(!$ps # we allow that something goes wrong with the ps command
80bca1b4 323 # In Linux 2.4 we would get an exact match ($ps eq 'x') but
324 # in Linux 2.2 there seems to be something funny going on:
325 # it seems as if the original length of the argv[] would
326 # be stored in the proc struct and then used by ps(1),
327 # no matter what characters we use to pad the argv[].
328 # (And if we use \0:s, they are shown as spaces.) Sigh.
329 || $ps =~ /^x\s*$/
6a4647a3 330 # FreeBSD cannot get rid of both the leading "perl :"
331 # and the trailing " (perl)": some FreeBSD versions
332 # can get rid of the first one.
d2e0b13f 333 || ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/),
e26ae24d 334 'altering $0 is effective (testing with `ps`)');
09fdc078 335 } else {
651aa52e 336 skip("\$0 check only on Linux and FreeBSD") for 0, 1;
09fdc078 337 }
66b1d557 338}
3e3baf6d 339
c7213721 340{
a45269de 341 my $ok = 1;
342 my $warn = '';
343 local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; };
78987ded 344 $! = undef;
a45269de 345 ok($ok, $warn, $Is_VMS ? "'\$!=undef' does throw a warning" : '');
78987ded 346}
347
902173a3 348# test case-insignificance of %ENV (these tests must be enabled only
349# when perl is compiled with -DENV_IS_CASELESS)
2986a63f 350if ($Is_MSWin32 || $Is_NetWare) {
902173a3 351 %ENV = ();
352 $ENV{'Foo'} = 'bar';
353 $ENV{'fOo'} = 'baz';
0bee926d 354 ok (scalar(keys(%ENV)) == 1);
355 ok exists($ENV{'FOo'});
356 ok (delete($ENV{'foO'}) eq 'baz');
357 ok (scalar(keys(%ENV)) == 0);
902173a3 358}
359else {
0bee926d 360 skip('no caseless %ENV support') for 1..4;
902173a3 361}
d2c93421 362
43651d81 363if ($Is_miniperl) {
13b238e6 364 skip ("miniperl can't rely on loading %Errno") for 1..2;
43651d81 365} else {
126c71c8 366 no warnings 'void';
367
d2c93421 368# Make sure Errno hasn't been prematurely autoloaded
369
b79f7545 370 ok !keys %Errno::;
d2c93421 371
372# Test auto-loading of Errno when %! is used
373
126c71c8 374 ok scalar eval q{
375 %!;
376 defined %Errno::;
377 }, $@;
378}
d2c93421 379
43651d81 380if ($Is_miniperl) {
381 skip ("miniperl can't rely on loading %Errno");
382} else {
383 # Make sure that Errno loading doesn't clobber $!
d2c93421 384
43651d81 385 undef %Errno::;
386 delete $INC{"Errno.pm"};
d2c93421 387
43651d81 388 open(FOO, "nonesuch"); # Generate ENOENT
389 my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time
390 ok ${"!"}{ENOENT};
391}
a4268c0a 392
b0e6f864 393ok $^S == 0 && defined $^S;
0bee926d 394eval { ok $^S == 1 };
b0e6f864 395eval " BEGIN { ok ! defined \$^S } ";
396ok $^S == 0 && defined $^S;
7c36658b 397
398ok ${^TAINT} == 0;
399eval { ${^TAINT} = 1 };
400ok ${^TAINT} == 0;
9aa702ec 401
402# 5.6.1 had a bug: @+ and @- were not properly interpolated
403# into double-quoted strings
404# 20020414 mjd-perl-patch+@plover.com
b64ebf53 405"I like pie" =~ /(I) (like) (pie)/;
406ok "@-" eq "0 0 2 7";
407ok "@+" eq "10 1 6 10";
9aa702ec 408
f28098ff 409# Tests for the magic get of $\
410{
411 my $ok = 0;
412 # [perl #19330]
413 {
414 local $\ = undef;
415 $\++; $\++;
416 $ok = $\ eq 2;
417 }
418 ok $ok;
419 $ok = 0;
420 {
421 local $\ = "a\0b";
422 $ok = "a$\b" eq "aa\0bb";
423 }
424 ok $ok;
425}
547d1dd8 426
427# Test for bug [perl #27839]
428{
429 my $x;
430 sub f {
431 "abc" =~ /(.)./;
432 $x = "@+";
433 return @+;
434 };
435 my @y = f();
436 ok( $x eq "@y", "return a magic array ($x) vs (@y)" );
437}
4c9140ed 438
439# Test for bug [perl #36434]
5ec759d9 440if (!$Is_VMS) {
4c9140ed 441 local @ISA;
442 local %ENV;
e1a479c5 443 # This used to be __PACKAGE__, but that causes recursive
444 # inheritance, which is detected earlier now and broke
445 # this test
446 eval { push @ISA, __FILE__ };
d8084ca5 447 ok( $@ eq '', 'Push a constant on a magic array');
4c9140ed 448 $@ and print "# $@";
449 eval { %ENV = (PATH => __PACKAGE__) };
d8084ca5 450 ok( $@ eq '', 'Assign a constant to a magic hash');
451 $@ and print "# $@";
452 eval { my %h = qw(A B); %ENV = (PATH => (keys %h)[0]) };
453 ok( $@ eq '', 'Assign a shared key to a magic hash');
4c9140ed 454 $@ and print "# $@";
455}
5ec759d9 456else {
457# Can not do this test on VMS, EPOC, and SYMBIAN according to comments
458# in mg.c/Perl_magic_clear_all_env()
459#
460 skip('Can\'t make assignment to \%ENV on this system') for 1..3;
461}