1#!./perl -w 2 3BEGIN { 4 unless(grep /blib/, @INC) { 5 chdir 't' if -d 't'; 6 @INC = '../lib' if -d '../lib'; 7 } 8} 9 10use warnings; 11use strict; 12use Config; 13 14BEGIN { 15 if(-d "lib" && -f "TEST") { 16 if ($Config{'extensions'} !~ /\bDB_File\b/ ) { 17 print "1..0 # Skip: DB_File was not built\n"; 18 exit 0; 19 } 20 } 21} 22 23use DB_File; 24use Fcntl; 25our ($dbh, $Dfile, $bad_ones, $FA); 26 27# full tied array support started in Perl 5.004_57 28# Double check to see if it is available. 29 30{ 31 sub try::TIEARRAY { bless [], "try" } 32 sub try::FETCHSIZE { $FA = 1 } 33 $FA = 0 ; 34 my @a ; 35 tie @a, 'try' ; 36 my $a = @a ; 37} 38 39 40sub ok 41{ 42 my $no = shift ; 43 my $result = shift ; 44 45 print "not " unless $result ; 46 print "ok $no\n" ; 47 48 return $result ; 49} 50 51{ 52 package Redirect ; 53 use Symbol ; 54 55 sub new 56 { 57 my $class = shift ; 58 my $filename = shift ; 59 my $fh = gensym ; 60 open ($fh, ">$filename") || die "Cannot open $filename: $!" ; 61 my $real_stdout = select($fh) ; 62 return bless [$fh, $real_stdout ] ; 63 64 } 65 sub DESTROY 66 { 67 my $self = shift ; 68 close $self->[0] ; 69 select($self->[1]) ; 70 } 71} 72 73sub docat 74{ 75 my $file = shift; 76 local $/ = undef; 77 open(CAT,$file) || die "Cannot open $file:$!"; 78 my $result = <CAT>; 79 close(CAT); 80 normalise($result) ; 81 return $result; 82} 83 84sub docat_del 85{ 86 my $file = shift; 87 my $result = docat($file); 88 unlink $file ; 89 return $result; 90} 91 92sub safeUntie 93{ 94 my $hashref = shift ; 95 my $no_inner = 1; 96 local $SIG{__WARN__} = sub {-- $no_inner } ; 97 untie @$hashref; 98 return $no_inner; 99} 100 101sub bad_one 102{ 103 unless ($bad_ones++) { 104 print STDERR <<EOM ; 105# 106# Some older versions of Berkeley DB version 1 will fail db-recno 107# tests 61, 63, 64 and 65. 108EOM 109 if ($^O eq 'darwin' 110 && $Config{db_version_major} == 1 111 && $Config{db_version_minor} == 0 112 && $Config{db_version_patch} == 0) { 113 print STDERR <<EOM ; 114# 115# For example Mac OS X 10.2 (or earlier) has such an old 116# version of Berkeley DB. 117EOM 118 } 119 120 print STDERR <<EOM ; 121# 122# You can safely ignore the errors if you're never going to use the 123# broken functionality (recno databases with a modified bval). 124# Otherwise you'll have to upgrade your DB library. 125# 126# If you want to use Berkeley DB version 1, then 1.85 and 1.86 are the 127# last versions that were released. Berkeley DB version 2 is continually 128# being updated -- Check out http://www.sleepycat.com/ for more details. 129# 130EOM 131 } 132} 133 134sub normalise 135{ 136 return unless $^O eq 'cygwin' ; 137 foreach (@_) 138 { s#\r\n#\n#g } 139} 140 141BEGIN 142{ 143 { 144 local $SIG{__DIE__} ; 145 eval { require Data::Dumper ; import Data::Dumper } ; 146 } 147 148 if ($@) { 149 *Dumper = sub { my $a = shift; return "[ @{ $a } ]" } ; 150 } 151} 152 153my $splice_tests = 10 + 12 + 1; # ten regressions, plus the randoms 154my $total_tests = 181 ; 155$total_tests += $splice_tests if $FA ; 156print "1..$total_tests\n"; 157 158$Dfile = "recno.tmp"; 159unlink $Dfile ; 160 161umask(0); 162 163# Check the interface to RECNOINFO 164 165$dbh = new DB_File::RECNOINFO ; 166ok(1, ! defined $dbh->{bval}) ; 167ok(2, ! defined $dbh->{cachesize}) ; 168ok(3, ! defined $dbh->{psize}) ; 169ok(4, ! defined $dbh->{flags}) ; 170ok(5, ! defined $dbh->{lorder}) ; 171ok(6, ! defined $dbh->{reclen}) ; 172ok(7, ! defined $dbh->{bfname}) ; 173 174$dbh->{bval} = 3000 ; 175ok(8, $dbh->{bval} == 3000 ); 176 177$dbh->{cachesize} = 9000 ; 178ok(9, $dbh->{cachesize} == 9000 ); 179 180$dbh->{psize} = 400 ; 181ok(10, $dbh->{psize} == 400 ); 182 183$dbh->{flags} = 65 ; 184ok(11, $dbh->{flags} == 65 ); 185 186$dbh->{lorder} = 123 ; 187ok(12, $dbh->{lorder} == 123 ); 188 189$dbh->{reclen} = 1234 ; 190ok(13, $dbh->{reclen} == 1234 ); 191 192$dbh->{bfname} = 1234 ; 193ok(14, $dbh->{bfname} == 1234 ); 194 195 196# Check that an invalid entry is caught both for store & fetch 197eval '$dbh->{fred} = 1234' ; 198ok(15, $@ =~ /^DB_File::RECNOINFO::STORE - Unknown element 'fred' at/ ); 199eval 'my $q = $dbh->{fred}' ; 200ok(16, $@ =~ /^DB_File::RECNOINFO::FETCH - Unknown element 'fred' at/ ); 201 202# Now check the interface to RECNOINFO 203 204my $X ; 205my @h ; 206ok(17, $X = tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ; 207 208my %noMode = map { $_, 1} qw( amigaos MSWin32 NetWare cygwin ) ; 209 210ok(18, ((stat($Dfile))[2] & 0777) == (($^O eq 'os2' || $^O eq 'MacOS') ? 0666 : 0640) 211 || $noMode{$^O} ); 212 213#my $l = @h ; 214my $l = $X->length ; 215ok(19, ($FA ? @h == 0 : !$l) ); 216 217my @data = qw( a b c d ever f g h i j k longername m n o p) ; 218 219$h[0] = shift @data ; 220ok(20, $h[0] eq 'a' ); 221 222my $ i; 223foreach (@data) 224 { $h[++$i] = $_ } 225 226unshift (@data, 'a') ; 227 228ok(21, defined $h[1] ); 229ok(22, ! defined $h[16] ); 230ok(23, $FA ? @h == @data : $X->length == @data ); 231 232 233# Overwrite an entry & check fetch it 234$h[3] = 'replaced' ; 235$data[3] = 'replaced' ; 236ok(24, $h[3] eq 'replaced' ); 237 238#PUSH 239my @push_data = qw(added to the end) ; 240($FA ? push(@h, @push_data) : $X->push(@push_data)) ; 241push (@data, @push_data) ; 242ok(25, $h[++$i] eq 'added' ); 243ok(26, $h[++$i] eq 'to' ); 244ok(27, $h[++$i] eq 'the' ); 245ok(28, $h[++$i] eq 'end' ); 246 247# POP 248my $popped = pop (@data) ; 249my $value = ($FA ? pop @h : $X->pop) ; 250ok(29, $value eq $popped) ; 251 252# SHIFT 253$value = ($FA ? shift @h : $X->shift) ; 254my $shifted = shift @data ; 255ok(30, $value eq $shifted ); 256 257# UNSHIFT 258 259# empty list 260($FA ? unshift @h,() : $X->unshift) ; 261ok(31, ($FA ? @h == @data : $X->length == @data )); 262 263my @new_data = qw(add this to the start of the array) ; 264$FA ? unshift (@h, @new_data) : $X->unshift (@new_data) ; 265unshift (@data, @new_data) ; 266ok(32, $FA ? @h == @data : $X->length == @data ); 267ok(33, $h[0] eq "add") ; 268ok(34, $h[1] eq "this") ; 269ok(35, $h[2] eq "to") ; 270ok(36, $h[3] eq "the") ; 271ok(37, $h[4] eq "start") ; 272ok(38, $h[5] eq "of") ; 273ok(39, $h[6] eq "the") ; 274ok(40, $h[7] eq "array") ; 275ok(41, $h[8] eq $data[8]) ; 276 277# Brief test for SPLICE - more thorough 'soak test' is later. 278my @old; 279if ($FA) { 280 @old = splice(@h, 1, 2, qw(bananas just before)); 281} 282else { 283 @old = $X->splice(1, 2, qw(bananas just before)); 284} 285ok(42, $h[0] eq "add") ; 286ok(43, $h[1] eq "bananas") ; 287ok(44, $h[2] eq "just") ; 288ok(45, $h[3] eq "before") ; 289ok(46, $h[4] eq "the") ; 290ok(47, $h[5] eq "start") ; 291ok(48, $h[6] eq "of") ; 292ok(49, $h[7] eq "the") ; 293ok(50, $h[8] eq "array") ; 294ok(51, $h[9] eq $data[8]) ; 295$FA ? splice(@h, 1, 3, @old) : $X->splice(1, 3, @old); 296 297# Now both arrays should be identical 298 299my $ok = 1 ; 300my $j = 0 ; 301foreach (@data) 302{ 303 $ok = 0, last if $_ ne $h[$j ++] ; 304} 305ok(52, $ok ); 306 307# Neagtive subscripts 308 309# get the last element of the array 310ok(53, $h[-1] eq $data[-1] ); 311ok(54, $h[-1] eq $h[ ($FA ? @h : $X->length) -1] ); 312 313# get the first element using a negative subscript 314eval '$h[ - ( $FA ? @h : $X->length)] = "abcd"' ; 315ok(55, $@ eq "" ); 316ok(56, $h[0] eq "abcd" ); 317 318# now try to read before the start of the array 319eval '$h[ - (1 + ($FA ? @h : $X->length))] = 1234' ; 320ok(57, $@ =~ '^Modification of non-creatable array value attempted' ); 321 322# IMPORTANT - $X must be undefined before the untie otherwise the 323# underlying DB close routine will not get called. 324undef $X ; 325ok(58, safeUntie \@h); 326 327unlink $Dfile; 328 329 330{ 331 # Check bval defaults to \n 332 333 my @h = () ; 334 my $dbh = new DB_File::RECNOINFO ; 335 ok(59, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ; 336 $h[0] = "abc" ; 337 $h[1] = "def" ; 338 $h[3] = "ghi" ; 339 ok(60, safeUntie \@h); 340 my $x = docat($Dfile) ; 341 unlink $Dfile; 342 ok(61, $x eq "abc\ndef\n\nghi\n") ; 343} 344 345{ 346 # Change bval 347 348 my @h = () ; 349 my $dbh = new DB_File::RECNOINFO ; 350 $dbh->{bval} = "-" ; 351 ok(62, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ; 352 $h[0] = "abc" ; 353 $h[1] = "def" ; 354 $h[3] = "ghi" ; 355 ok(63, safeUntie \@h); 356 my $x = docat($Dfile) ; 357 unlink $Dfile; 358 my $ok = ($x eq "abc-def--ghi-") ; 359 bad_one() unless $ok ; 360 ok(64, $ok) ; 361} 362 363{ 364 # Check R_FIXEDLEN with default bval (space) 365 366 my @h = () ; 367 my $dbh = new DB_File::RECNOINFO ; 368 $dbh->{flags} = R_FIXEDLEN ; 369 $dbh->{reclen} = 5 ; 370 ok(65, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ; 371 $h[0] = "abc" ; 372 $h[1] = "def" ; 373 $h[3] = "ghi" ; 374 ok(66, safeUntie \@h); 375 my $x = docat($Dfile) ; 376 unlink $Dfile; 377 my $ok = ($x eq "abc def ghi ") ; 378 bad_one() unless $ok ; 379 ok(67, $ok) ; 380} 381 382{ 383 # Check R_FIXEDLEN with user-defined bval 384 385 my @h = () ; 386 my $dbh = new DB_File::RECNOINFO ; 387 $dbh->{flags} = R_FIXEDLEN ; 388 $dbh->{bval} = "-" ; 389 $dbh->{reclen} = 5 ; 390 ok(68, tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $dbh ) ; 391 $h[0] = "abc" ; 392 $h[1] = "def" ; 393 $h[3] = "ghi" ; 394 ok(69, safeUntie \@h); 395 my $x = docat($Dfile) ; 396 unlink $Dfile; 397 my $ok = ($x eq "abc--def-------ghi--") ; 398 bad_one() unless $ok ; 399 ok(70, $ok) ; 400} 401 402{ 403 # check that attempting to tie an associative array to a DB_RECNO will fail 404 405 my $filename = "xyz" ; 406 my %x ; 407 eval { tie %x, 'DB_File', $filename, O_RDWR|O_CREAT, 0640, $DB_RECNO ; } ; 408 ok(71, $@ =~ /^DB_File can only tie an array to a DB_RECNO database/) ; 409 unlink $filename ; 410} 411 412{ 413 # sub-class test 414 415 package Another ; 416 417 use warnings ; 418 use strict ; 419 420 open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ; 421 print FILE <<'EOM' ; 422 423 package SubDB ; 424 425 use warnings ; 426 use strict ; 427 our (@ISA, @EXPORT); 428 429 require Exporter ; 430 use DB_File; 431 @ISA=qw(DB_File); 432 @EXPORT = @DB_File::EXPORT ; 433 434 sub STORE { 435 my $self = shift ; 436 my $key = shift ; 437 my $value = shift ; 438 $self->SUPER::STORE($key, $value * 2) ; 439 } 440 441 sub FETCH { 442 my $self = shift ; 443 my $key = shift ; 444 $self->SUPER::FETCH($key) - 1 ; 445 } 446 447 sub put { 448 my $self = shift ; 449 my $key = shift ; 450 my $value = shift ; 451 $self->SUPER::put($key, $value * 3) ; 452 } 453 454 sub get { 455 my $self = shift ; 456 $self->SUPER::get($_[0], $_[1]) ; 457 $_[1] -= 2 ; 458 } 459 460 sub A_new_method 461 { 462 my $self = shift ; 463 my $key = shift ; 464 my $value = $self->FETCH($key) ; 465 return "[[$value]]" ; 466 } 467 468 1 ; 469EOM 470 471 close FILE or die "Could not close: $!"; 472 473 BEGIN { push @INC, '.'; } 474 eval 'use SubDB ; '; 475 main::ok(72, $@ eq "") ; 476 my @h ; 477 my $X ; 478 eval ' 479 $X = tie(@h, "SubDB","recno.tmp", O_RDWR|O_CREAT, 0640, $DB_RECNO ); 480 ' ; 481 die "Could not tie: $!" unless $X; 482 483 main::ok(73, $@ eq "") ; 484 485 my $ret = eval '$h[3] = 3 ; return $h[3] ' ; 486 main::ok(74, $@ eq "") ; 487 main::ok(75, $ret == 5) ; 488 489 my $value = 0; 490 $ret = eval '$X->put(1, 4) ; $X->get(1, $value) ; return $value' ; 491 main::ok(76, $@ eq "") ; 492 main::ok(77, $ret == 10) ; 493 494 $ret = eval ' R_NEXT eq main::R_NEXT ' ; 495 main::ok(78, $@ eq "" ) ; 496 main::ok(79, $ret == 1) ; 497 498 $ret = eval '$X->A_new_method(1) ' ; 499 main::ok(80, $@ eq "") ; 500 main::ok(81, $ret eq "[[11]]") ; 501 502 undef $X; 503 main::ok(82, main::safeUntie \@h); 504 unlink "SubDB.pm", "recno.tmp" ; 505 506} 507 508{ 509 510 # test $# 511 my $self ; 512 unlink $Dfile; 513 ok(83, $self = tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ; 514 $h[0] = "abc" ; 515 $h[1] = "def" ; 516 $h[2] = "ghi" ; 517 $h[3] = "jkl" ; 518 ok(84, $FA ? $#h == 3 : $self->length() == 4) ; 519 undef $self ; 520 ok(85, safeUntie \@h); 521 my $x = docat($Dfile) ; 522 ok(86, $x eq "abc\ndef\nghi\njkl\n") ; 523 524 # $# sets array to same length 525 $self = tie @h, 'DB_File', $Dfile, O_RDWR, 0640, $DB_RECNO ; 526 ok(87, $self) 527 or warn "# $DB_File::Error\n"; 528 if ($FA) 529 { $#h = 3 } 530 else 531 { $self->STORESIZE(4) } 532 ok(88, $FA ? $#h == 3 : $self->length() == 4) ; 533 undef $self ; 534 ok(89, safeUntie \@h); 535 $x = docat($Dfile) ; 536 ok(90, $x eq "abc\ndef\nghi\njkl\n") ; 537 538 # $# sets array to bigger 539 ok(91, $self = tie @h, 'DB_File', $Dfile, O_RDWR, 0640, $DB_RECNO ) ; 540 if ($FA) 541 { $#h = 6 } 542 else 543 { $self->STORESIZE(7) } 544 ok(92, $FA ? $#h == 6 : $self->length() == 7) ; 545 undef $self ; 546 ok(93, safeUntie \@h); 547 $x = docat($Dfile) ; 548 ok(94, $x eq "abc\ndef\nghi\njkl\n\n\n\n") ; 549 550 # $# sets array smaller 551 ok(95, $self = tie @h, 'DB_File', $Dfile, O_RDWR, 0640, $DB_RECNO ) ; 552 if ($FA) 553 { $#h = 2 } 554 else 555 { $self->STORESIZE(3) } 556 ok(96, $FA ? $#h == 2 : $self->length() == 3) ; 557 undef $self ; 558 ok(97, safeUntie \@h); 559 $x = docat($Dfile) ; 560 ok(98, $x eq "abc\ndef\nghi\n") ; 561 562 unlink $Dfile; 563 564 565} 566 567{ 568 # DBM Filter tests 569 use warnings ; 570 use strict ; 571 my (@h, $db) ; 572 my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 573 unlink $Dfile; 574 575 sub checkOutput 576 { 577 my($fk, $sk, $fv, $sv) = @_ ; 578 579 print "# Fetch Key : expected '$fk' got '$fetch_key'\n" 580 if $fetch_key ne $fk ; 581 print "# Fetch Value : expected '$fv' got '$fetch_value'\n" 582 if $fetch_value ne $fv ; 583 print "# Store Key : expected '$sk' got '$store_key'\n" 584 if $store_key ne $sk ; 585 print "# Store Value : expected '$sv' got '$store_value'\n" 586 if $store_value ne $sv ; 587 print "# \$_ : expected 'original' got '$_'\n" 588 if $_ ne 'original' ; 589 590 return 591 $fetch_key eq $fk && $store_key eq $sk && 592 $fetch_value eq $fv && $store_value eq $sv && 593 $_ eq 'original' ; 594 } 595 596 ok(99, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ); 597 598 $db->filter_fetch_key (sub { $fetch_key = $_ }) ; 599 $db->filter_store_key (sub { $store_key = $_ }) ; 600 $db->filter_fetch_value (sub { $fetch_value = $_}) ; 601 $db->filter_store_value (sub { $store_value = $_ }) ; 602 603 $_ = "original" ; 604 605 $h[0] = "joe" ; 606 # fk sk fv sv 607 ok(100, checkOutput( "", 0, "", "joe")) ; 608 609 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 610 ok(101, $h[0] eq "joe"); 611 # fk sk fv sv 612 ok(102, checkOutput( "", 0, "joe", "")) ; 613 614 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 615 ok(103, $db->FIRSTKEY() == 0) ; 616 # fk sk fv sv 617 ok(104, checkOutput( 0, "", "", "")) ; 618 619 # replace the filters, but remember the previous set 620 my ($old_fk) = $db->filter_fetch_key 621 (sub { ++ $_ ; $fetch_key = $_ }) ; 622 my ($old_sk) = $db->filter_store_key 623 (sub { $_ *= 2 ; $store_key = $_ }) ; 624 my ($old_fv) = $db->filter_fetch_value 625 (sub { $_ = "[$_]"; $fetch_value = $_ }) ; 626 my ($old_sv) = $db->filter_store_value 627 (sub { s/o/x/g; $store_value = $_ }) ; 628 629 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 630 $h[1] = "Joe" ; 631 # fk sk fv sv 632 ok(105, checkOutput( "", 2, "", "Jxe")) ; 633 634 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 635 ok(106, $h[1] eq "[Jxe]"); 636 # fk sk fv sv 637 ok(107, checkOutput( "", 2, "[Jxe]", "")) ; 638 639 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 640 ok(108, $db->FIRSTKEY() == 1) ; 641 # fk sk fv sv 642 ok(109, checkOutput( 1, "", "", "")) ; 643 644 # put the original filters back 645 $db->filter_fetch_key ($old_fk); 646 $db->filter_store_key ($old_sk); 647 $db->filter_fetch_value ($old_fv); 648 $db->filter_store_value ($old_sv); 649 650 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 651 $h[0] = "joe" ; 652 ok(110, checkOutput( "", 0, "", "joe")) ; 653 654 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 655 ok(111, $h[0] eq "joe"); 656 ok(112, checkOutput( "", 0, "joe", "")) ; 657 658 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 659 ok(113, $db->FIRSTKEY() == 0) ; 660 ok(114, checkOutput( 0, "", "", "")) ; 661 662 # delete the filters 663 $db->filter_fetch_key (undef); 664 $db->filter_store_key (undef); 665 $db->filter_fetch_value (undef); 666 $db->filter_store_value (undef); 667 668 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 669 $h[0] = "joe" ; 670 ok(115, checkOutput( "", "", "", "")) ; 671 672 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 673 ok(116, $h[0] eq "joe"); 674 ok(117, checkOutput( "", "", "", "")) ; 675 676 ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ; 677 ok(118, $db->FIRSTKEY() == 0) ; 678 ok(119, checkOutput( "", "", "", "")) ; 679 680 undef $db ; 681 ok(120, safeUntie \@h); 682 unlink $Dfile; 683} 684 685{ 686 # DBM Filter with a closure 687 688 use warnings ; 689 use strict ; 690 my (@h, $db) ; 691 692 unlink $Dfile; 693 ok(121, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ); 694 695 my %result = () ; 696 697 sub Closure 698 { 699 my ($name) = @_ ; 700 my $count = 0 ; 701 my @kept = () ; 702 703 return sub { ++$count ; 704 push @kept, $_ ; 705 $result{$name} = "$name - $count: [@kept]" ; 706 } 707 } 708 709 $db->filter_store_key(Closure("store key")) ; 710 $db->filter_store_value(Closure("store value")) ; 711 $db->filter_fetch_key(Closure("fetch key")) ; 712 $db->filter_fetch_value(Closure("fetch value")) ; 713 714 $_ = "original" ; 715 716 $h[0] = "joe" ; 717 ok(122, $result{"store key"} eq "store key - 1: [0]"); 718 ok(123, $result{"store value"} eq "store value - 1: [joe]"); 719 ok(124, ! defined $result{"fetch key"} ); 720 ok(125, ! defined $result{"fetch value"} ); 721 ok(126, $_ eq "original") ; 722 723 ok(127, $db->FIRSTKEY() == 0 ) ; 724 ok(128, $result{"store key"} eq "store key - 1: [0]"); 725 ok(129, $result{"store value"} eq "store value - 1: [joe]"); 726 ok(130, $result{"fetch key"} eq "fetch key - 1: [0]"); 727 ok(131, ! defined $result{"fetch value"} ); 728 ok(132, $_ eq "original") ; 729 730 $h[7] = "john" ; 731 ok(133, $result{"store key"} eq "store key - 2: [0 7]"); 732 ok(134, $result{"store value"} eq "store value - 2: [joe john]"); 733 ok(135, $result{"fetch key"} eq "fetch key - 1: [0]"); 734 ok(136, ! defined $result{"fetch value"} ); 735 ok(137, $_ eq "original") ; 736 737 ok(138, $h[0] eq "joe"); 738 ok(139, $result{"store key"} eq "store key - 3: [0 7 0]"); 739 ok(140, $result{"store value"} eq "store value - 2: [joe john]"); 740 ok(141, $result{"fetch key"} eq "fetch key - 1: [0]"); 741 ok(142, $result{"fetch value"} eq "fetch value - 1: [joe]"); 742 ok(143, $_ eq "original") ; 743 744 undef $db ; 745 ok(144, safeUntie \@h); 746 unlink $Dfile; 747} 748 749{ 750 # DBM Filter recursion detection 751 use warnings ; 752 use strict ; 753 my (@h, $db) ; 754 unlink $Dfile; 755 756 ok(145, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ); 757 758 $db->filter_store_key (sub { $_ = $h[0] }) ; 759 760 eval '$h[1] = 1234' ; 761 ok(146, $@ =~ /^recursion detected in filter_store_key at/ ); 762 763 undef $db ; 764 ok(147, safeUntie \@h); 765 unlink $Dfile; 766} 767 768 769{ 770 # Examples from the POD 771 772 my $file = "xyzt" ; 773 { 774 my $redirect = new Redirect $file ; 775 776 use warnings FATAL => qw(all); 777 use strict ; 778 use DB_File ; 779 780 my $filename = "text" ; 781 unlink $filename ; 782 783 my @h ; 784 my $x = tie @h, "DB_File", $filename, O_RDWR|O_CREAT, 0640, $DB_RECNO 785 or die "Cannot open file 'text': $!\n" ; 786 787 # Add a few key/value pairs to the file 788 $h[0] = "orange" ; 789 $h[1] = "blue" ; 790 $h[2] = "yellow" ; 791 792 $FA ? push @h, "green", "black" 793 : $x->push("green", "black") ; 794 795 my $elements = $FA ? scalar @h : $x->length ; 796 print "The array contains $elements entries\n" ; 797 798 my $last = $FA ? pop @h : $x->pop ; 799 print "popped $last\n" ; 800 801 $FA ? unshift @h, "white" 802 : $x->unshift("white") ; 803 my $first = $FA ? shift @h : $x->shift ; 804 print "shifted $first\n" ; 805 806 # Check for existence of a key 807 print "Element 1 Exists with value $h[1]\n" if $h[1] ; 808 809 # use a negative index 810 print "The last element is $h[-1]\n" ; 811 print "The 2nd last element is $h[-2]\n" ; 812 813 undef $x ; 814 untie @h ; 815 816 unlink $filename ; 817 } 818 819 ok(148, docat_del($file) eq <<'EOM') ; 820The array contains 5 entries 821popped black 822shifted white 823Element 1 Exists with value blue 824The last element is green 825The 2nd last element is yellow 826EOM 827 828 my $save_output = "xyzt" ; 829 { 830 my $redirect = new Redirect $save_output ; 831 832 use warnings FATAL => qw(all); 833 use strict ; 834 our (@h, $H, $file, $i); 835 use DB_File ; 836 use Fcntl ; 837 838 $file = "text" ; 839 840 unlink $file ; 841 842 $H = tie @h, "DB_File", $file, O_RDWR|O_CREAT, 0640, $DB_RECNO 843 or die "Cannot open file $file: $!\n" ; 844 845 # first create a text file to play with 846 $h[0] = "zero" ; 847 $h[1] = "one" ; 848 $h[2] = "two" ; 849 $h[3] = "three" ; 850 $h[4] = "four" ; 851 852 853 # Print the records in order. 854 # 855 # The length method is needed here because evaluating a tied 856 # array in a scalar context does not return the number of 857 # elements in the array. 858 859 print "\nORIGINAL\n" ; 860 foreach $i (0 .. $H->length - 1) { 861 print "$i: $h[$i]\n" ; 862 } 863 864 # use the push & pop methods 865 $a = $H->pop ; 866 $H->push("last") ; 867 print "\nThe last record was [$a]\n" ; 868 869 # and the shift & unshift methods 870 $a = $H->shift ; 871 $H->unshift("first") ; 872 print "The first record was [$a]\n" ; 873 874 # Use the API to add a new record after record 2. 875 $i = 2 ; 876 $H->put($i, "Newbie", R_IAFTER) ; 877 878 # and a new record before record 1. 879 $i = 1 ; 880 $H->put($i, "New One", R_IBEFORE) ; 881 882 # delete record 3 883 $H->del(3) ; 884 885 # now print the records in reverse order 886 print "\nREVERSE\n" ; 887 for ($i = $H->length - 1 ; $i >= 0 ; -- $i) 888 { print "$i: $h[$i]\n" } 889 890 # same again, but use the API functions instead 891 print "\nREVERSE again\n" ; 892 my ($s, $k, $v) = (0, 0, 0) ; 893 for ($s = $H->seq($k, $v, R_LAST) ; 894 $s == 0 ; 895 $s = $H->seq($k, $v, R_PREV)) 896 { print "$k: $v\n" } 897 898 undef $H ; 899 untie @h ; 900 901 unlink $file ; 902 } 903 904 ok(149, docat_del($save_output) eq <<'EOM') ; 905 906ORIGINAL 9070: zero 9081: one 9092: two 9103: three 9114: four 912 913The last record was [four] 914The first record was [zero] 915 916REVERSE 9175: last 9184: three 9193: Newbie 9202: one 9211: New One 9220: first 923 924REVERSE again 9255: last 9264: three 9273: Newbie 9282: one 9291: New One 9300: first 931EOM 932 933} 934 935{ 936 # Bug ID 20001013.009 937 # 938 # test that $hash{KEY} = undef doesn't produce the warning 939 # Use of uninitialized value in null operation 940 use warnings ; 941 use strict ; 942 use DB_File ; 943 944 unlink $Dfile; 945 my @h ; 946 my $a = ""; 947 local $SIG{__WARN__} = sub {$a = $_[0]} ; 948 949 tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0664, $DB_RECNO 950 or die "Can't open file: $!\n" ; 951 $h[0] = undef; 952 ok(150, $a eq "") ; 953 ok(151, safeUntie \@h); 954 unlink $Dfile; 955} 956 957{ 958 # test that %hash = () doesn't produce the warning 959 # Argument "" isn't numeric in entersub 960 use warnings ; 961 use strict ; 962 use DB_File ; 963 my $a = ""; 964 local $SIG{__WARN__} = sub {$a = $_[0]} ; 965 966 unlink $Dfile; 967 my @h ; 968 969 tie @h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0664, $DB_RECNO 970 or die "Can't open file: $!\n" ; 971 @h = (); ; 972 ok(152, $a eq "") ; 973 ok(153, safeUntie \@h); 974 unlink $Dfile; 975} 976 977{ 978 # Check that DBM Filter can cope with read-only $_ 979 980 use warnings ; 981 use strict ; 982 my (@h, $db) ; 983 unlink $Dfile; 984 985 ok(154, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ); 986 987 $db->filter_fetch_key (sub { }) ; 988 $db->filter_store_key (sub { }) ; 989 $db->filter_fetch_value (sub { }) ; 990 $db->filter_store_value (sub { }) ; 991 992 $_ = "original" ; 993 994 $h[0] = "joe" ; 995 ok(155, $h[0] eq "joe"); 996 997 eval { my @r= grep { $h[$_] } (1, 2, 3) }; 998 ok (156, ! $@); 999 1000 1001 # delete the filters 1002 $db->filter_fetch_key (undef); 1003 $db->filter_store_key (undef); 1004 $db->filter_fetch_value (undef); 1005 $db->filter_store_value (undef); 1006 1007 $h[1] = "joe" ; 1008 1009 ok(157, $h[1] eq "joe"); 1010 1011 eval { my @r= grep { $h[$_] } (1, 2, 3) }; 1012 ok (158, ! $@); 1013 1014 undef $db ; 1015 untie @h; 1016 unlink $Dfile; 1017} 1018 1019{ 1020 # Check low-level API works with filter 1021 1022 use warnings ; 1023 use strict ; 1024 my (@h, $db) ; 1025 my $Dfile = "xxy.db"; 1026 unlink $Dfile; 1027 1028 ok(159, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO ) ); 1029 1030 1031 $db->filter_fetch_key (sub { ++ $_ } ); 1032 $db->filter_store_key (sub { -- $_ } ); 1033 $db->filter_fetch_value (sub { $_ = unpack("i", $_) } ); 1034 $db->filter_store_value (sub { $_ = pack("i", $_) } ); 1035 1036 $_ = 'fred'; 1037 1038 my $key = 22 ; 1039 my $value = 34 ; 1040 1041 $db->put($key, $value) ; 1042 ok 160, $key == 22; 1043 ok 161, $value == 34 ; 1044 ok 162, $_ eq 'fred'; 1045 #print "k [$key][$value]\n" ; 1046 1047 my $val ; 1048 $db->get($key, $val) ; 1049 ok 163, $key == 22; 1050 ok 164, $val == 34 ; 1051 ok 165, $_ eq 'fred'; 1052 1053 $key = 51 ; 1054 $value = 454; 1055 $h[$key] = $value ; 1056 ok 166, $key == 51; 1057 ok 167, $value == 454 ; 1058 ok 168, $_ eq 'fred'; 1059 1060 undef $db ; 1061 untie @h; 1062 unlink $Dfile; 1063} 1064 1065 1066{ 1067 # Regression Test for bug 30237 1068 # Check that substr can be used in the key to db_put 1069 # and that db_put does not trigger the warning 1070 # 1071 # Use of uninitialized value in subroutine entry 1072 1073 1074 use warnings ; 1075 use strict ; 1076 my (@h, $db) ; 1077 my $status ; 1078 my $Dfile = "xxy.db"; 1079 unlink $Dfile; 1080 1081 ok(169, $db = tie(@h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_RECNO) ); 1082 1083 my $warned = ''; 1084 local $SIG{__WARN__} = sub {$warned = $_[0]} ; 1085 1086 # db-put with substr of key 1087 my %remember = () ; 1088 for my $ix ( 0 .. 2 ) 1089 { 1090 my $key = $ix . "data" ; 1091 my $value = "value$ix" ; 1092 $remember{substr($key,0, 1)} = $value ; 1093 $db->put(substr($key,0, 1), $value) ; 1094 } 1095 1096 ok 170, $warned eq '' 1097 or print "# Caught warning [$warned]\n" ; 1098 1099 # db-put with substr of value 1100 $warned = ''; 1101 for my $ix ( 3 .. 5 ) 1102 { 1103 my $key = $ix . "data" ; 1104 my $value = "value$ix" ; 1105 $remember{$ix} = $value ; 1106 $db->put($ix, substr($value,0)) ; 1107 } 1108 1109 ok 171, $warned eq '' 1110 or print "# Caught warning [$warned]\n" ; 1111 1112 # via the tied array is not a problem, but check anyway 1113 # substr of key 1114 $warned = ''; 1115 for my $ix ( 6 .. 8 ) 1116 { 1117 my $key = $ix . "data" ; 1118 my $value = "value$ix" ; 1119 $remember{substr($key,0,1)} = $value ; 1120 $h[substr($key,0,1)] = $value ; 1121 } 1122 1123 ok 172, $warned eq '' 1124 or print "# Caught warning [$warned]\n" ; 1125 1126 # via the tied array is not a problem, but check anyway 1127 # substr of value 1128 $warned = ''; 1129 for my $ix ( 9 .. 10 ) 1130 { 1131 my $key = $ix . "data" ; 1132 my $value = "value$ix" ; 1133 $remember{$ix} = $value ; 1134 $h[$ix] = substr($value,0) ; 1135 } 1136 1137 ok 173, $warned eq '' 1138 or print "# Caught warning [$warned]\n" ; 1139 1140 my %bad = () ; 1141 my $key = ''; 1142 for (my $status = $db->seq($key, $value, R_FIRST ) ; 1143 $status == 0 ; 1144 $status = $db->seq($key, $value, R_NEXT ) ) { 1145 1146 #print "# key [$key] value [$value]\n" ; 1147 if (defined $remember{$key} && defined $value && 1148 $remember{$key} eq $value) { 1149 delete $remember{$key} ; 1150 } 1151 else { 1152 $bad{$key} = $value ; 1153 } 1154 } 1155 1156 ok 174, keys %bad == 0 ; 1157 ok 175, keys %remember == 0 ; 1158 1159 print "# missing -- $key $value\n" while ($key, $value) = each %remember; 1160 print "# bad -- $key $value\n" while ($key, $value) = each %bad; 1161 1162 # Make sure this fix does not break code to handle an undef key 1163 my $value = 'fred'; 1164 $warned = ''; 1165 $status = $db->put(undef, $value) ; 1166 ok 176, $status == 0 1167 or print "# put failed - status $status\n"; 1168 ok 177, $warned eq '' 1169 or print "# Caught warning [$warned]\n" ; 1170 $warned = ''; 1171 1172 print "# db_ver $DB_File::db_ver\n"; 1173 $value = '' ; 1174 $status = $db->get(undef, $value) ; 1175 ok 178, $status == 0 1176 or print "# get failed - status $status\n" ; 1177 ok(179, $db->get(undef, $value) == 0) or print "# get failed\n" ; 1178 ok 180, $value eq 'fred' or print "# got [$value]\n" ; 1179 ok 181, $warned eq '' 1180 or print "# Caught warning [$warned]\n" ; 1181 $warned = ''; 1182 1183 undef $db ; 1184 untie @h; 1185 unlink $Dfile; 1186} 1187 1188# Only test splice if this is a newish version of Perl 1189exit unless $FA ; 1190 1191# Test SPLICE 1192 1193{ 1194 # check that the splice warnings are under the same lexical control 1195 # as their non-tied counterparts. 1196 1197 use warnings; 1198 use strict; 1199 1200 my $a = ''; 1201 my @a = (1); 1202 local $SIG{__WARN__} = sub {$a = $_[0]} ; 1203 1204 unlink $Dfile; 1205 my @tied ; 1206 1207 tie @tied, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0664, $DB_RECNO 1208 or die "Can't open file: $!\n" ; 1209 1210 # uninitialized offset 1211 use warnings; 1212 my $offset ; 1213 $a = ''; 1214 splice(@a, $offset); 1215 ok(182, $a =~ /^Use of uninitialized value /); 1216 $a = ''; 1217 splice(@tied, $offset); 1218 ok(183, $a =~ /^Use of uninitialized value in splice/); 1219 1220 no warnings 'uninitialized'; 1221 $a = ''; 1222 splice(@a, $offset); 1223 ok(184, $a eq ''); 1224 $a = ''; 1225 splice(@tied, $offset); 1226 ok(185, $a eq ''); 1227 1228 # uninitialized length 1229 use warnings; 1230 my $length ; 1231 $a = ''; 1232 splice(@a, 0, $length); 1233 ok(186, $a =~ /^Use of uninitialized value /); 1234 $a = ''; 1235 splice(@tied, 0, $length); 1236 ok(187, $a =~ /^Use of uninitialized value in splice/); 1237 1238 no warnings 'uninitialized'; 1239 $a = ''; 1240 splice(@a, 0, $length); 1241 ok(188, $a eq ''); 1242 $a = ''; 1243 splice(@tied, 0, $length); 1244 ok(189, $a eq ''); 1245 1246 # offset past end of array 1247 use warnings; 1248 $a = ''; 1249 splice(@a, 3); 1250 my $splice_end_array = ($a =~ /^splice\(\) offset past end of array/); 1251 $a = ''; 1252 splice(@tied, 3); 1253 ok(190, !$splice_end_array || $a =~ /^splice\(\) offset past end of array/); 1254 1255 no warnings 'misc'; 1256 $a = ''; 1257 splice(@a, 3); 1258 ok(191, $a eq ''); 1259 $a = ''; 1260 splice(@tied, 3); 1261 ok(192, $a eq ''); 1262 1263 ok(193, safeUntie \@tied); 1264 unlink $Dfile; 1265} 1266 1267# 1268# These are a few regression tests: bundles of five arguments to pass 1269# to test_splice(). The first four arguments correspond to those 1270# given to splice(), and the last says which context to call it in 1271# (scalar, list or void). 1272# 1273# The expected result is not needed because we get that by running 1274# Perl's built-in splice(). 1275# 1276my @tests = ([ [ 'falsely', 'dinosaur', 'remedy', 'commotion', 1277 'rarely', 'paleness' ], 1278 -4, -2, 1279 [ 'redoubled', 'Taylorize', 'Zoe', 'halogen' ], 1280 'void' ], 1281 1282 [ [ 'a' ], -2, 1, [ 'B' ], 'void' ], 1283 1284 [ [ 'Hartley', 'Islandia', 'assents', 'wishful' ], 1285 0, -4, 1286 [ 'maids' ], 1287 'void' ], 1288 1289 [ [ 'visibility', 'pocketful', 'rectangles' ], 1290 -10, 0, 1291 [ 'garbages' ], 1292 'void' ], 1293 1294 [ [ 'sleeplessly' ], 1295 8, -4, 1296 [ 'Margery', 'clearing', 'repercussion', 'clubs', 1297 'arise' ], 1298 'void' ], 1299 1300 [ [ 'chastises', 'recalculates' ], 1301 0, 0, 1302 [ 'momentariness', 'mediates', 'accents', 'toils', 1303 'regaled' ], 1304 'void' ], 1305 1306 [ [ 'b', '' ], 1307 9, 8, 1308 [ 'otrb', 'stje', 'ixrpw', 'vxfx', 'lhhf' ], 1309 'scalar' ], 1310 1311 [ [ 'b', '' ], 1312 undef, undef, 1313 [ 'otrb', 'stje', 'ixrpw', 'vxfx', 'lhhf' ], 1314 'scalar' ], 1315 1316 [ [ 'riheb' ], -8, undef, [], 'void' ], 1317 1318 [ [ 'uft', 'qnxs', '' ], 1319 6, -2, 1320 [ 'znp', 'mhnkh', 'bn' ], 1321 'void' ], 1322 ); 1323 1324my $testnum = 194; 1325my $failed = 0; 1326my $tmp = "dbr$$"; 1327foreach my $test (@tests) { 1328 my $err = test_splice(@$test); 1329 if (defined $err) { 1330 print STDERR "# failed: ", Dumper($test); 1331 print STDERR "# error: $err\n"; 1332 $failed = 1; 1333 ok($testnum++, 0); 1334 } 1335 else { ok($testnum++, 1) } 1336} 1337 1338if ($failed) { 1339 # Not worth running the random ones 1340 print STDERR '# skipping ', $testnum++, "\n"; 1341} 1342else { 1343 # A thousand randomly-generated tests 1344 $failed = 0; 1345 srand(0); 1346 foreach (0 .. 1000 - 1) { 1347 my $test = rand_test(); 1348 my $err = test_splice(@$test); 1349 if (defined $err) { 1350 print STDERR "# failed: ", Dumper($test); 1351 print STDERR "# error: $err\n"; 1352 $failed = 1; 1353 print STDERR "# skipping any remaining random tests\n"; 1354 last; 1355 } 1356 } 1357 1358 ok($testnum++, not $failed); 1359} 1360 1361die "testnum ($testnum) != total_tests ($total_tests) + 1" 1362 if $testnum != $total_tests + 1; 1363 1364exit ; 1365 1366# Subroutines for SPLICE testing 1367 1368# test_splice() 1369# 1370# Test the new splice() against Perl's built-in one. The first four 1371# parameters are those passed to splice(), except that the lists must 1372# be (explicitly) passed by reference, and are not actually modified. 1373# (It's just a test!) The last argument specifies the context in 1374# which to call the functions: 'list', 'scalar', or 'void'. 1375# 1376# Returns: 1377# undef, if the two splices give the same results for the given 1378# arguments and context; 1379# 1380# an error message showing the difference, otherwise. 1381# 1382# Reads global variable $tmp. 1383# 1384sub test_splice { 1385 die 'usage: test_splice(array, offset, length, list, context)' if @_ != 5; 1386 my ($array, $offset, $length, $list, $context) = @_; 1387 my @array = @$array; 1388 my @list = @$list; 1389 1390 unlink $tmp; 1391 1392 my @h; 1393 my $H = tie @h, 'DB_File', $tmp, O_CREAT|O_RDWR, 0644, $DB_RECNO 1394 or die "cannot open $tmp: $!"; 1395 1396 my $i = 0; 1397 foreach ( @array ) { $h[$i++] = $_ } 1398 1399 return "basic DB_File sanity check failed" 1400 if list_diff(\@array, \@h); 1401 1402 # Output from splice(): 1403 # Returned value (munged a bit), error msg, warnings 1404 # 1405 my ($s_r, $s_error, @s_warnings); 1406 1407 my $gather_warning = sub { push @s_warnings, $_[0] }; 1408 if ($context eq 'list') { 1409 my @r; 1410 eval { 1411 local $SIG{__WARN__} = $gather_warning; 1412 @r = splice @array, $offset, $length, @list; 1413 }; 1414 $s_error = $@; 1415 $s_r = \@r; 1416 } 1417 elsif ($context eq 'scalar') { 1418 my $r; 1419 eval { 1420 local $SIG{__WARN__} = $gather_warning; 1421 $r = splice @array, $offset, $length, @list; 1422 }; 1423 $s_error = $@; 1424 $s_r = [ $r ]; 1425 } 1426 elsif ($context eq 'void') { 1427 eval { 1428 local $SIG{__WARN__} = $gather_warning; 1429 splice @array, $offset, $length, @list; 1430 }; 1431 $s_error = $@; 1432 $s_r = []; 1433 } 1434 else { 1435 die "bad context $context"; 1436 } 1437 1438 foreach ($s_error, @s_warnings) { 1439 chomp; 1440 s/ at \S+ line \d+\.$//; 1441 # only built-in splice identifies name of uninit value 1442 s/(uninitialized value) \$\w+/$1/; 1443 } 1444 1445 # Now do the same for DB_File's version of splice 1446 my ($ms_r, $ms_error, @ms_warnings); 1447 $gather_warning = sub { push @ms_warnings, $_[0] }; 1448 if ($context eq 'list') { 1449 my @r; 1450 eval { 1451 local $SIG{__WARN__} = $gather_warning; 1452 @r = splice @h, $offset, $length, @list; 1453 }; 1454 $ms_error = $@; 1455 $ms_r = \@r; 1456 } 1457 elsif ($context eq 'scalar') { 1458 my $r; 1459 eval { 1460 local $SIG{__WARN__} = $gather_warning; 1461 $r = splice @h, $offset, $length, @list; 1462 }; 1463 $ms_error = $@; 1464 $ms_r = [ $r ]; 1465 } 1466 elsif ($context eq 'void') { 1467 eval { 1468 local $SIG{__WARN__} = $gather_warning; 1469 splice @h, $offset, $length, @list; 1470 }; 1471 $ms_error = $@; 1472 $ms_r = []; 1473 } 1474 else { 1475 die "bad context $context"; 1476 } 1477 1478 foreach ($ms_error, @ms_warnings) { 1479 chomp; 1480 s/ at \S+ line \d+\.?.*//s; 1481 } 1482 1483 return "different errors: '$s_error' vs '$ms_error'" 1484 if $s_error ne $ms_error; 1485 return('different return values: ' . Dumper($s_r) . ' vs ' . Dumper($ms_r)) 1486 if list_diff($s_r, $ms_r); 1487 return('different changed list: ' . Dumper(\@array) . ' vs ' . Dumper(\@h)) 1488 if list_diff(\@array, \@h); 1489 1490 if ((scalar @s_warnings) != (scalar @ms_warnings)) { 1491 return 'different number of warnings'; 1492 } 1493 1494 while (@s_warnings) { 1495 my $sw = shift @s_warnings; 1496 my $msw = shift @ms_warnings; 1497 1498 if (defined $sw and defined $msw) { 1499 $msw =~ s/ \(.+\)$//; 1500 $msw =~ s/ in splice$// if $] < 5.006; 1501 if ($sw ne $msw) { 1502 return "different warning: '$sw' vs '$msw'"; 1503 } 1504 } 1505 elsif (not defined $sw and not defined $msw) { 1506 # Okay. 1507 } 1508 else { 1509 return "one warning defined, another undef"; 1510 } 1511 } 1512 1513 undef $H; 1514 untie @h; 1515 1516 open(TEXT, $tmp) or die "cannot open $tmp: $!"; 1517 @h = <TEXT>; normalise @h; chomp @h; 1518 close TEXT or die "cannot close $tmp: $!"; 1519 return('list is different when re-read from disk: ' 1520 . Dumper(\@array) . ' vs ' . Dumper(\@h)) 1521 if list_diff(\@array, \@h); 1522 1523 unlink $tmp; 1524 1525 return undef; # success 1526} 1527 1528 1529# list_diff() 1530# 1531# Do two lists differ? 1532# 1533# Parameters: 1534# reference to first list 1535# reference to second list 1536# 1537# Returns true iff they differ. Only works for lists of (string or 1538# undef). 1539# 1540# Surely there is a better way to do this? 1541# 1542sub list_diff { 1543 die 'usage: list_diff(ref to first list, ref to second list)' 1544 if @_ != 2; 1545 my ($a, $b) = @_; 1546 my @a = @$a; my @b = @$b; 1547 return 1 if (scalar @a) != (scalar @b); 1548 for (my $i = 0; $i < @a; $i++) { 1549 my ($ae, $be) = ($a[$i], $b[$i]); 1550 if (defined $ae and defined $be) { 1551 return 1 if $ae ne $be; 1552 } 1553 elsif (not defined $ae and not defined $be) { 1554 # Two undefined values are 'equal' 1555 } 1556 else { 1557 return 1; 1558 } 1559 } 1560 return 0; 1561} 1562 1563 1564# rand_test() 1565# 1566# Think up a random ARRAY, OFFSET, LENGTH, LIST, and context. 1567# ARRAY or LIST might be empty, and OFFSET or LENGTH might be 1568# undefined. Return a 'test' - a listref of these five things. 1569# 1570sub rand_test { 1571 die 'usage: rand_test()' if @_; 1572 my @contexts = qw<list scalar void>; 1573 my $context = $contexts[int(rand @contexts)]; 1574 return [ rand_list(), 1575 (rand() < 0.5) ? (int(rand(20)) - 10) : undef, 1576 (rand() < 0.5) ? (int(rand(20)) - 10) : undef, 1577 rand_list(), 1578 $context ]; 1579} 1580 1581 1582sub rand_list { 1583 die 'usage: rand_list()' if @_; 1584 my @r; 1585 1586 while (rand() > 0.1 * (scalar @r + 1)) { 1587 push @r, rand_word(); 1588 } 1589 return \@r; 1590} 1591 1592 1593sub rand_word { 1594 die 'usage: rand_word()' if @_; 1595 my $r = ''; 1596 my @chars = qw<a b c d e f g h i j k l m n o p q r s t u v w x y z>; 1597 while (rand() > 0.1 * (length($r) + 1)) { 1598 $r .= $chars[int(rand(scalar @chars))]; 1599 } 1600 return $r; 1601} 1602 1603 1604