1#!./perl 2 3BEGIN { 4 $| = 1; 5 chdir 't' if -d 't'; 6 @INC = '../lib'; 7 require './test.pl'; 8 plan (tests => 187); 9} 10 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. 16BEGIN { 17 # not available in miniperl 18 my %non_mini = map { $_ => 1 } qw(+ - [); 19 for (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 23 ^LAST_FH 24 )) { 25 my $v = $_; 26 # avoid using any global vars here: 27 if ($v =~ s/^\^(?=.)//) { 28 for(substr $v, 0, 1) { 29 $_ = chr ord() - 64; 30 } 31 } 32 SKIP: 33 { 34 skip_if_miniperl("the module for *$_ may not be available in " 35 . "miniperl", 1) if $non_mini{$_}; 36 ok defined *$v, "*$_ appears to be defined at the outset"; 37 } 38 } 39} 40 41# This must be in a separate BEGIN block, as the mere mention of ${^TAINT} 42# will invalidate the test for it. 43BEGIN { 44 $ENV{PATH} = '/bin' if ${^TAINT}; 45 $SIG{__WARN__} = sub { die "Dying on warning: ", @_ }; 46} 47 48use warnings; 49use Config; 50 51 52$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 = $^O eq 'cygwin'; 58 59$PERL = 60 ($Is_NetWare ? 'perl' : 61 $Is_VMS ? $^X : 62 $Is_MSWin32 ? '.\perl' : 63 './perl'); 64 65sub env_is { 66 my ($key, $val, $desc) = @_; 67 68 use open IN => ":raw"; 69 if ($Is_MSWin32) { 70 # cmd.exe will echo 'variable=value' but 4nt will echo just the value 71 # -- Nikola Knezevic 72 require Win32; 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$val\E$/, $desc; 78 } elsif ($Is_VMS) { 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; 84 } else { 85 my @env = `env`; 86 SKIP: { 87 skip("env doesn't work on this android", 1) if !@env && $^O =~ /android/; 88 chomp (my @env = grep { s/^$key=// } @env); 89 is "@env", $val, $desc; 90 } 91 } 92} 93 94END { 95 # On VMS, environment variable changes are peristent after perl exits 96 if ($Is_VMS) { 97 delete $ENV{'FOO'}; 98 delete $ENV{'__NoNeSuCh'}; 99 delete $ENV{'__NoNeSuCh2'}; 100 } 101} 102 103eval '$ENV{"FOO"} = "hi there";'; # check that ENV is inited inside eval 104# cmd.exe will echo 'variable=value' but 4nt will echo just the value 105# -- Nikola Knezevic 106if ($Is_MSWin32) { like `set FOO`, qr/^(?:FOO=)?hi there$/; } 107elsif ($Is_VMS) { is `write sys\$output f\$trnlnm("FOO")`, "hi there\n"; } 108else { is `echo \$FOO`, "hi there\n"; } 109 110unlink_all 'ajslkdfpqjsjfk'; 111$! = 0; 112open(FOO,'ajslkdfpqjsjfk'); 113isnt($!, 0, "Unlinked file can't be opened"); 114close FOO; # just mention it, squelch used-only-once 115 116SKIP: { 117 skip('SIGINT not safe on this platform', 5) 118 if $Is_MSWin32 || $Is_NetWare || $Is_Dos; 119 # the next tests are done in a subprocess because sh spits out a 120 # newline onto stderr when a child process kills itself with SIGINT. 121 # We use a pipe rather than system() because the VMS command buffer 122 # would overflow with a command that long. 123 124 # For easy interpolation of test numbers: 125 $next_test = curr_test() - 1; 126 sub TIEARRAY {bless[]} 127 sub FETCH { $next_test + pop } 128 tie my @tn, __PACKAGE__; 129 130 open( CMDPIPE, "|-", $PERL); 131 132 print CMDPIPE "\$t1 = $tn[1]; \$t2 = $tn[2];\n", <<'END'; 133 134 $| = 1; # command buffering 135 136 $SIG{"INT"} = "ok1"; kill "INT",$$; sleep 1; 137 $SIG{"INT"} = "IGNORE"; kill "INT",$$; sleep 1; print "ok $t2\n"; 138 $SIG{"INT"} = "DEFAULT"; kill "INT",$$; sleep 1; print" not ok $t2\n"; 139 140 sub ok1 { 141 if (($x = pop(@_)) eq "INT") { 142 print "ok $t1\n"; 143 } 144 else { 145 print "not ok $t1 ($x @_)\n"; 146 } 147 } 148 149END 150 151 close CMDPIPE; 152 153 open( CMDPIPE, "|-", $PERL); 154 print CMDPIPE "\$t3 = $tn[3];\n", <<'END'; 155 156 { package X; 157 sub DESTROY { 158 kill "INT",$$; 159 } 160 } 161 sub x { 162 my $x=bless [], 'X'; 163 return sub { $x }; 164 } 165 $| = 1; # command buffering 166 $SIG{"INT"} = "ok3"; 167 { 168 local $SIG{"INT"}=x(); 169 print ""; # Needed to expose failure in 5.8.0 (why?) 170 } 171 sleep 1; 172 delete $SIG{"INT"}; 173 kill "INT",$$; sleep 1; 174 sub ok3 { 175 print "ok $t3\n"; 176 } 177END 178 close CMDPIPE; 179 $? >>= 8 if $^O eq 'VMS'; # POSIX status hiding in 2nd byte 180 my $todo = ($^O eq 'os2' ? ' # TODO: EMX v0.9d_fix4 bug: wrong nibble? ' : ''); 181 $todo = ($Config{usecrosscompile} ? '# TODO: Not sure whats going on here when cross-compiling' : ''); 182 print $? & 0xFF ? "ok $tn[4]$todo\n" : "not ok $tn[4]$todo\n"; 183 184 open(CMDPIPE, "|-", $PERL); 185 print CMDPIPE <<'END'; 186 187 sub PVBM () { 'foo' } 188 index 'foo', PVBM; 189 my $pvbm = PVBM; 190 191 sub foo { exit 0 } 192 193 $SIG{"INT"} = $pvbm; 194 kill "INT", $$; sleep 1; 195END 196 close CMDPIPE; 197 $? >>= 8 if $^O eq 'VMS'; 198 print $? ? "not ok $tn[5]\n" : "ok $tn[5]\n"; 199 200 curr_test(curr_test() + 5); 201} 202 203# can we slice ENV? 204@val1 = @ENV{keys(%ENV)}; 205@val2 = values(%ENV); 206is join(':',@val1), join(':',@val2); 207cmp_ok @val1, '>', 1; 208 209# deleting $::{ENV} 210is runperl(prog => 'delete $::{ENV}; chdir; print qq-ok\n-'), "ok\n", 211 'deleting $::{ENV}'; 212 213# regex vars 214'foobarbaz' =~ /b(a)r/; 215is $`, 'foo'; 216is $&, 'bar'; 217is $', 'baz'; 218is $+, 'a'; 219 220# [perl #24237] 221for (qw < ` & ' >) { 222 fresh_perl_is 223 qq < \@$_; q "fff" =~ /(?!^)./; print "[\$$_]\\n" >, 224 "[f]\n", {}, 225 "referencing \@$_ before \$$_ etc. still saws off ampersands"; 226} 227 228# $" 229@a = qw(foo bar baz); 230is "@a", "foo bar baz"; 231{ 232 local $" = ','; 233 is "@a", "foo,bar,baz"; 234} 235 236# $; 237%h = (); 238$h{'foo', 'bar'} = 1; 239is((keys %h)[0], "foo\034bar"); 240{ 241 local $; = 'x'; 242 %h = (); 243 $h{'foo', 'bar'} = 1; 244 is((keys %h)[0], 'fooxbar'); 245} 246 247# $?, $@, $$ 248system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(0)"]; 249is $?, 0; 250system qq[$PERL "-I../lib" -e "use vmsish qw(hushed); exit(1)"]; 251isnt $?, 0; 252 253eval { die "foo\n" }; 254is $@, "foo\n"; 255 256ok !*@{HASH}, 'no %@'; 257 258cmp_ok($$, '>', 0); 259my $pid = $$; 260eval { $$ = 42 }; 261is $$, 42, '$$ can be modified'; 262SKIP: { 263 skip "no fork", 1 unless $Config{d_fork}; 264 (my $kidpid = open my $fh, "-|") // skip "cannot fork: $!", 1; 265 if($kidpid) { # parent 266 my $kiddollars = <$fh>; 267 close $fh or die "cannot close pipe from kid proc: $!"; 268 is $kiddollars, $kidpid, '$$ is reset on fork'; 269 } 270 else { # child 271 print $$; 272 $::NO_ENDING = 1; # silence "Looks like you only ran..." 273 exit; 274 } 275} 276$$ = $pid; # Tests below use $$ 277 278# $^X and $0 279{ 280 my $is_abs = $Config{d_procselfexe} || $Config{usekernprocpathname} 281 || $Config{usensgetexecutablepath}; 282 if ($^O eq 'qnx') { 283 chomp($wd = `/usr/bin/fullpath -t`); 284 } 285 elsif($^O =~ /android/) { 286 chomp($wd = `sh -c 'pwd'`); 287 } 288 elsif($Is_Cygwin || $is_abs) { 289 # Cygwin turns the symlink into the real file 290 chomp($wd = `pwd`); 291 $wd =~ s#/t$##; 292 $wd =~ /(.*)/; $wd = $1; # untaint 293 if ($Is_Cygwin) { 294 $wd = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($wd, 1)); 295 } 296 } 297 elsif($Is_os2) { 298 $wd = Cwd::sys_cwd(); 299 } 300 else { 301 $wd = '.'; 302 } 303 my $perl = $Is_VMS || $is_abs ? $^X : "$wd/perl"; 304 my $headmaybe = ''; 305 my $middlemaybe = ''; 306 my $tailmaybe = ''; 307 $script = "$wd/show-shebang"; 308 if ($Is_MSWin32) { 309 chomp($wd = `cd`); 310 $wd =~ s|\\|/|g; 311 $perl = "$wd/perl.exe"; 312 $script = "$wd/show-shebang.bat"; 313 $headmaybe = <<EOH ; 314\@rem =' 315\@echo off 316$perl -x \%0 317goto endofperl 318\@rem '; 319EOH 320 $tailmaybe = <<EOT ; 321 322__END__ 323:endofperl 324EOT 325 } 326 elsif ($Is_os2) { 327 $script = "./show-shebang"; 328 } 329 elsif ($Is_VMS) { 330 $script = "[]show-shebang"; 331 } 332 elsif ($Is_Cygwin) { 333 $middlemaybe = <<'EOX' 334$^X = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($^X, 1)); 335$0 = Cygwin::win_to_posix_path(Cygwin::posix_to_win_path($0, 1)); 336EOX 337 } 338 if ($^O eq 'os390' or $^O eq 'posix-bc') { # no shebang 339 $headmaybe = <<EOH ; 340 eval 'exec ./perl -S \$0 \${1+"\$\@"}' 341 if 0; 342EOH 343 } 344 $s1 = "\$^X is $perl, \$0 is $script\n"; 345 ok open(SCRIPT, ">$script") or diag "Can't write to $script: $!"; 346 ok print(SCRIPT $headmaybe . <<EOB . $middlemaybe . <<'EOF' . $tailmaybe) or diag $!; 347#!$perl 348EOB 349print "\$^X is $^X, \$0 is $0\n"; 350EOF 351 ok close(SCRIPT) or diag $!; 352 ok chmod(0755, $script) or diag $!; 353 $_ = $Is_VMS ? `$perl $script` : `$script`; 354 s/\.exe//i if $Is_Dos or $Is_Cygwin or $Is_os2; 355 s{is perl}{is $perl}; # for systems where $^X is only a basename 356 s{\\}{/}g; 357 if ($Is_MSWin32 || $Is_os2) { 358 is uc $_, uc $s1; 359 } else { 360 SKIP: 361 { 362 skip "# TODO: Hit bug posix-2058; exec does not setup argv[0] correctly." if ($^O eq "vos"); 363 is $_, $s1; 364 } 365 } 366 $_ = `$perl $script`; 367 s/\.exe//i if $Is_Dos or $Is_os2 or $Is_Cygwin; 368 s{\\}{/}g; 369 if ($Is_MSWin32 || $Is_os2) { 370 is uc $_, uc $s1; 371 } else { 372 is $_, $s1; 373 } 374 ok unlink($script) or diag $!; 375 # CHECK 376 # Could this be replaced with: 377 # unlink_all($script); 378} 379 380# $], $^O, $^T 381cmp_ok $], '>=', 5.00319; 382ok $^O; 383cmp_ok $^T, '>', 850000000; 384 385# Test change 25062 is working 386my $orig_osname = $^O; 387{ 388local $^I = '.bak'; 389is $^O, $orig_osname, 'Assigning $^I does not clobber $^O'; 390} 391$^O = $orig_osname; 392 393{ 394 #RT #72422 395 foreach my $p (0, 1) { 396 fresh_perl_is(<<"EOP", '2 4 8', undef, "test \$^P = $p"); 397\$DB::single = 2; 398\$DB::trace = 4; 399\$DB::signal = 8; 400\$^P = $p; 401print "\$DB::single \$DB::trace \$DB::signal"; 402EOP 403 } 404} 405 406# Check that assigning to $0 on Linux sets the process name with both 407# argv[0] assignment and by calling prctl() 408{ 409 SKIP: { 410 skip "We don't have prctl() here, or we're on Android", 2 unless $Config{d_prctl_set_name} && $^O ne 'android'; 411 412 # We don't really need these tests. prctl() is tested in the 413 # Kernel, but test it anyway for our sanity. If something doesn't 414 # work (like if the system doesn't have a ps(1) for whatever 415 # reason) just bail out gracefully. 416 my $maybe_ps = sub { 417 my ($cmd) = @_; 418 local ($?, $!); 419 420 no warnings; 421 my $res = `$cmd`; 422 skip "Couldn't shell out to '$cmd', returned code $?", 2 if $?; 423 return $res; 424 }; 425 426 my $name = "Good Morning, Dave"; 427 $0 = $name; 428 429 chomp(my $argv0 = $maybe_ps->("ps h $$")); 430 chomp(my $prctl = $maybe_ps->("ps hc $$")); 431 432 like($argv0, $name, "Set process name through argv[0] ($argv0)"); 433 like($prctl, substr($name, 0, 15), "Set process name through prctl() ($prctl)"); 434 } 435} 436 437{ 438 my $ok = 1; 439 my $warn = ''; 440 local $SIG{'__WARN__'} = sub { $ok = 0; $warn = join '', @_; $warn =~ s/\n$//; }; 441 $! = undef; 442 local $TODO = $Is_VMS ? "'\$!=undef' does throw a warning" : ''; 443 ok($ok, $warn); 444} 445 446SKIP: { 447 skip_if_miniperl("miniperl can't rely on loading %Errno", 2); 448 no warnings 'void'; 449 450# Make sure Errno hasn't been prematurely autoloaded 451 452 ok !keys %Errno::; 453 454# Test auto-loading of Errno when %! is used 455 456 ok scalar eval q{ 457 %!; 458 scalar %Errno::; 459 }, $@; 460} 461 462SKIP: { 463 skip_if_miniperl("miniperl can't rely on loading %Errno", 2); 464 # Make sure that Errno loading doesn't clobber $! 465 466 undef %Errno::; 467 delete $INC{"Errno.pm"}; 468 469 open(FOO, "nonesuch"); # Generate ENOENT 470 my %errs = %{"!"}; # Cause Errno.pm to be loaded at run-time 471 ok ${"!"}{ENOENT}; 472 473 # Make sure defined(*{"!"}) before %! does not stop %! from working 474 is 475 runperl( 476 prog => 'BEGIN { defined *{q-!-} } print qq-ok\n- if tied %!', 477 ), 478 "ok\n", 479 'defined *{"!"} does not stop %! from working'; 480} 481 482# Check that we don't auto-load packages 483foreach (['powie::!', 'Errno'], 484 ['powie::+', 'Tie::Hash::NamedCapture']) { 485 my ($symbol, $package) = @$_; 486 SKIP: { 487 (my $extension = $package) =~ s|::|/|g; 488 skip "$package is statically linked", 2 489 if $Config{static_ext} =~ m|\b\Q$extension\E\b|; 490 foreach my $scalar_first ('', '$$symbol;') { 491 my $desc = qq{Referencing %{"$symbol"}}; 492 $desc .= qq{ after mentioning \${"$symbol"}} if $scalar_first; 493 $desc .= " doesn't load $package"; 494 495 fresh_perl_is(<<"EOP", 0, {}, $desc); 496use strict qw(vars subs); 497my \$symbol = '$symbol'; 498$scalar_first; 4991 if %{\$symbol}; 500print scalar %${package}::; 501EOP 502 } 503 } 504} 505 506is $^S, 0; 507eval { is $^S,1 }; 508eval " BEGIN { ok ! defined \$^S } "; 509is $^S, 0; 510 511my $taint = ${^TAINT}; 512is ${^TAINT}, $taint; 513eval { ${^TAINT} = 1 }; 514is ${^TAINT}, $taint; 515 516# 5.6.1 had a bug: @+ and @- were not properly interpolated 517# into double-quoted strings 518# 20020414 mjd-perl-patch+@plover.com 519"I like pie" =~ /(I) (like) (pie)/; 520is "@-", "0 0 2 7"; 521is "@+", "10 1 6 10"; 522 523# Tests for the magic get of $\ 524{ 525 my $ok = 0; 526 # [perl #19330] 527 { 528 local $\ = undef; 529 $\++; $\++; 530 $ok = $\ eq 2; 531 } 532 ok $ok; 533 $ok = 0; 534 { 535 local $\ = "a\0b"; 536 $ok = "a$\b" eq "aa\0bb"; 537 } 538 ok $ok; 539} 540 541# Test for bug [perl #36434] 542# Can not do this test on VMS, and SYMBIAN according to comments 543# in mg.c/Perl_magic_clear_all_env() 544SKIP: { 545 skip('Can\'t make assignment to \%ENV on this system', 3) if $Is_VMS; 546 547 local @ISA; 548 local %ENV; 549 # This used to be __PACKAGE__, but that causes recursive 550 # inheritance, which is detected earlier now and broke 551 # this test 552 eval { push @ISA, __FILE__ }; 553 is $@, '', 'Push a constant on a magic array'; 554 $@ and print "# $@"; 555 eval { %ENV = (PATH => __PACKAGE__) }; 556 is $@, '', 'Assign a constant to a magic hash'; 557 $@ and print "# $@"; 558 eval { my %h = qw(A B); %ENV = (PATH => (keys %h)[0]) }; 559 is $@, '', 'Assign a shared key to a magic hash'; 560 $@ and print "# $@"; 561} 562 563# Tests for Perl_magic_clearsig 564foreach my $sig (qw(__WARN__ INT)) { 565 $SIG{$sig} = lc $sig; 566 is $SIG{$sig}, 'main::' . lc $sig, "Can assign to $sig"; 567 is delete $SIG{$sig}, 'main::' . lc $sig, "Can delete from $sig"; 568 is $SIG{$sig}, undef, "$sig is now gone"; 569 is delete $SIG{$sig}, undef, "$sig remains gone"; 570} 571 572# And now one which doesn't exist; 573{ 574 no warnings 'signal'; 575 $SIG{HUNGRY} = 'mmm, pie'; 576} 577is $SIG{HUNGRY}, 'mmm, pie', 'Can assign to HUNGRY'; 578is delete $SIG{HUNGRY}, 'mmm, pie', 'Can delete from HUNGRY'; 579is $SIG{HUNGRY}, undef, "HUNGRY is now gone"; 580is delete $SIG{HUNGRY}, undef, "HUNGRY remains gone"; 581 582# Test deleting signals that we never set 583foreach my $sig (qw(__DIE__ _BOGUS_HOOK KILL THIRSTY)) { 584 is $SIG{$sig}, undef, "$sig is not present"; 585 is delete $SIG{$sig}, undef, "delete of $sig returns undef"; 586} 587 588{ 589 $! = 9999; 590 is int $!, 9999, q{[perl #72850] Core dump in bleadperl from perl -e '$! = 9999; $a = $!;'}; 591 592} 593 594# %+ %- 595SKIP: { 596 skip_if_miniperl("No XS in miniperl", 2); 597 # Make sure defined(*{"+"}) before %+ does not stop %+ from working 598 is 599 runperl( 600 prog => 'BEGIN { defined *{q-+-} } print qq-ok\n- if tied %+', 601 ), 602 "ok\n", 603 'defined *{"+"} does not stop %+ from working'; 604 is 605 runperl( 606 prog => 'BEGIN { defined *{q=-=} } print qq-ok\n- if tied %-', 607 ), 608 "ok\n", 609 'defined *{"-"} does not stop %- from working'; 610} 611 612SKIP: { 613 skip_if_miniperl("No XS in miniperl", 3); 614 615 for ( [qw( %- Tie::Hash::NamedCapture )], [qw( $[ arybase )], 616 [qw( %! Errno )] ) { 617 my ($var, $mod) = @$_; 618 my $modfile = $mod =~ s|::|/|gr . ".pm"; 619 fresh_perl_is 620 qq 'sub UNIVERSAL::AUTOLOAD{} 621 $mod\::foo() if 0; 622 $var; 623 print "ok\\n" if \$INC{"$modfile"}', 624 "ok\n", 625 { switches => [ '-X' ] }, 626 "$var still loads $mod when stash and UNIVERSAL::AUTOLOAD exist"; 627 } 628} 629 630# ${^LAST_FH} 631() = tell STDOUT; 632is ${^LAST_FH}, \*STDOUT, '${^LAST_FH} after tell'; 633() = tell STDIN; 634is ${^LAST_FH}, \*STDIN, '${^LAST_FH} after another tell'; 635{ 636 my $fh = *STDOUT; 637 () = tell $fh; 638 is ${^LAST_FH}, \$fh, '${^LAST_FH} referencing lexical coercible glob'; 639} 640# This also tests that ${^LAST_FH} is a weak reference: 641is ${^LAST_FH}, undef, '${^LAST_FH} is undef when PL_last_in_gv is NULL'; 642 643 644# $| 645fresh_perl_is 'print $| = ~$|', "1\n", {switches => ['-l']}, 646 '[perl #4760] print $| = ~$|'; 647fresh_perl_is 648 'select f; undef *f; ${q/|/}; print STDOUT qq|ok\n|', "ok\n", {}, 649 '[perl #115206] no crash when vivifying $| while *{+select}{IO} is undef'; 650 651# ${^OPEN} and $^H interaction 652# Setting ${^OPEN} causes $^H to change, but setting $^H would only some- 653# times make ${^OPEN} change, depending on whether it was in the same BEGIN 654# block. Don’t test actual values (subject to change); just test for 655# consistency. 656my @stuff; 657eval ' 658 BEGIN { ${^OPEN} = "a\0b"; $^H = 0; push @stuff, ${^OPEN} } 659 BEGIN { ${^OPEN} = "a\0b"; $^H = 0 } BEGIN { push @stuff, ${^OPEN} } 6601' or die $@; 661is $stuff[0], $stuff[1], '$^H modifies ${^OPEN} consistently'; 662 663# deleting $::{"\cH"} 664is runperl(prog => 'delete $::{qq-\cH-}; ${^OPEN}=foo; print qq-ok\n-'), 665 "ok\n", 666 'deleting $::{"\cH"}'; 667 668# Tests for some non-magic names: 669is ${^MPE}, undef, '${^MPE} starts undefined'; 670is ++${^MPE}, 1, '${^MPE} can be incremented'; 671 672# This one used to behave as ${^MATCH} due to a missing break: 673is ${^MPEN}, undef, '${^MPEN} starts undefined'; 674# This one used to croak due to that missing break: 675is ++${^MPEN}, 1, '${^MPEN} can be incremented'; 676 677# ^^^^^^^^^ New tests go here ^^^^^^^^^ 678 679SKIP: { 680 skip("%ENV manipulations fail or aren't safe on $^O", 19) 681 if $Is_Dos; 682 683 SKIP: { 684 skip("clearing \%ENV is not safe when running under valgrind or on VMS") 685 if $ENV{PERL_VALGRIND} || $Is_VMS; 686 687 $PATH = $ENV{PATH}; 688 $PDL = $ENV{PERL_DESTRUCT_LEVEL} || 0; 689 $ENV{foo} = "bar"; 690 %ENV = (); 691 $ENV{PATH} = $PATH; 692 $ENV{PERL_DESTRUCT_LEVEL} = $PDL || 0; 693 if ($Is_MSWin32) { 694 is `set foo 2>NUL`, ""; 695 } else { 696 is `echo \$foo`, "\n"; 697 } 698 } 699 700 $ENV{__NoNeSuCh} = 'foo'; 701 $0 = 'bar'; 702 env_is(__NoNeSuCh => 'foo', 'setting $0 does not break %ENV'); 703 704 $ENV{__NoNeSuCh2} = 'foo'; 705 $ENV{__NoNeSuCh2} = undef; 706 env_is(__NoNeSuCh2 => '', 'setting a key as undef does not delete it'); 707 708 # stringify a glob 709 $ENV{foo} = *TODO; 710 env_is(foo => '*main::TODO', 'ENV store of stringified glob'); 711 712 # stringify a ref 713 my $ref = []; 714 $ENV{foo} = $ref; 715 env_is(foo => "$ref", 'ENV store of stringified ref'); 716 717 # downgrade utf8 when possible 718 $bytes = "eh zero \x{A0}"; 719 utf8::upgrade($chars = $bytes); 720 $forced = $ENV{foo} = $chars; 721 ok(!utf8::is_utf8($forced) && $forced eq $bytes, 'ENV store downgrades utf8 in SV'); 722 env_is(foo => $bytes, 'ENV store downgrades utf8 in setenv'); 723 724 # warn when downgrading utf8 is not possible 725 $chars = "X-Day \x{1998}"; 726 utf8::encode($bytes = $chars); 727 { 728 my $warned = 0; 729 local $SIG{__WARN__} = sub { ++$warned if $_[0] =~ /^Wide character in setenv/; print "# @_" }; 730 $forced = $ENV{foo} = $chars; 731 ok($warned == 1, 'ENV store warns about wide characters'); 732 } 733 ok(!utf8::is_utf8($forced) && $forced eq $bytes, 'ENV store encodes high utf8 in SV'); 734 env_is(foo => $bytes, 'ENV store encodes high utf8 in SV'); 735 736 # test local $ENV{foo} on existing foo 737 { 738 local $ENV{__NoNeSuCh}; 739 { local $TODO = 'exists on %ENV should reflect real env'; 740 ok(!exists $ENV{__NoNeSuCh}, 'not exists $ENV{existing} during local $ENV{existing}'); } 741 env_is(__NoNeLoCaL => ''); 742 } 743 ok(exists $ENV{__NoNeSuCh}, 'exists $ENV{existing} after local $ENV{existing}'); 744 env_is(__NoNeSuCh => 'foo'); 745 746 # test local $ENV{foo} on new foo 747 { 748 local $ENV{__NoNeLoCaL} = 'foo'; 749 ok(exists $ENV{__NoNeLoCaL}, 'exists $ENV{new} during local $ENV{new}'); 750 env_is(__NoNeLoCaL => 'foo'); 751 } 752 ok(!exists $ENV{__NoNeLoCaL}, 'not exists $ENV{new} after local $ENV{new}'); 753 env_is(__NoNeLoCaL => ''); 754 755 SKIP: { 756 skip("\$0 check only on Linux and FreeBSD", 2) 757 unless $^O =~ /^(linux|android|freebsd)$/ 758 && open CMDLINE, "/proc/$$/cmdline"; 759 760 chomp(my $line = scalar <CMDLINE>); 761 my $me = (split /\0/, $line)[0]; 762 is $me, $0, 'altering $0 is effective (testing with /proc/)'; 763 close CMDLINE; 764 skip("\$0 check with 'ps' only on Linux (but not Android) and FreeBSD", 1) if $^O eq 'android'; 765 # perlbug #22811 766 my $mydollarzero = sub { 767 my($arg) = shift; 768 $0 = $arg if defined $arg; 769 # In FreeBSD the ps -o command= will cause 770 # an empty header line, grab only the last line. 771 my $ps = (`ps -o command= -p $$`)[-1]; 772 return if $?; 773 chomp $ps; 774 printf "# 0[%s]ps[%s]\n", $0, $ps; 775 $ps; 776 }; 777 my $ps = $mydollarzero->("x"); 778 ok(!$ps # we allow that something goes wrong with the ps command 779 # In Linux 2.4 we would get an exact match ($ps eq 'x') but 780 # in Linux 2.2 there seems to be something funny going on: 781 # it seems as if the original length of the argv[] would 782 # be stored in the proc struct and then used by ps(1), 783 # no matter what characters we use to pad the argv[]. 784 # (And if we use \0:s, they are shown as spaces.) Sigh. 785 || $ps =~ /^x\s*$/ 786 # FreeBSD cannot get rid of both the leading "perl :" 787 # and the trailing " (perl)": some FreeBSD versions 788 # can get rid of the first one. 789 || ($^O eq 'freebsd' && $ps =~ m/^(?:perl: )?x(?: \(perl\))?$/), 790 'altering $0 is effective (testing with `ps`)'); 791 } 792} 793 794# test case-insignificance of %ENV (these tests must be enabled only 795# when perl is compiled with -DENV_IS_CASELESS) 796SKIP: { 797 skip('no caseless %ENV support', 4) unless $Is_MSWin32 || $Is_NetWare; 798 799 %ENV = (); 800 $ENV{'Foo'} = 'bar'; 801 $ENV{'fOo'} = 'baz'; 802 is scalar(keys(%ENV)), 1; 803 ok exists $ENV{'FOo'}; 804 is delete $ENV{'foO'}, 'baz'; 805 is scalar(keys(%ENV)), 0; 806} 807 808__END__ 809 810# Put new tests before the various ENV tests, as they blow %ENV away. 811