[p5sagit/p5-mst-13.2.git] / t / lib / gdbm.t

#!./perl

# $RCSfile: dbm.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:43 $

BEGIN {
    @INC = '../lib';
    require Config; import Config;
    if ($Config{'extensions'} !~ /\bGDBM_File\b/) {
	print "1..0 # Skip: GDBM_File was not built\n";
	exit 0;
    }
}

use strict;
use warnings;


use GDBM_File;

print "1..68\n";

unlink <Op.dbmx*>;

umask(0);
my %h ;
print (tie(%h,'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640) ? "ok 1\n" : "not ok 1\n");

my $Dfile = "Op.dbmx.pag";
if (! -e $Dfile) {
	($Dfile) = <Op.dbmx*>;
}
if ($^O eq 'amigaos' || $^O eq 'os2' || $^O eq 'MSWin32' || $^O eq 'dos') {
    print "ok 2 # Skipped: different file permission semantics\n";
}
else {
    my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
     $blksize,$blocks) = stat($Dfile);
    print (($mode & 0777) == 0640 ? "ok 2\n" : "not ok 2\n");
}
my $i = 0;
while (my ($key,$value) = each(%h)) {
    $i++;
}
print (!$i ? "ok 3\n" : "not ok 3\n");

$h{'goner1'} = 'snork';

$h{'abc'} = 'ABC';
$h{'def'} = 'DEF';
$h{'jkl','mno'} = "JKL\034MNO";
$h{'a',2,3,4,5} = join("\034",'A',2,3,4,5);
$h{'a'} = 'A';
$h{'b'} = 'B';
$h{'c'} = 'C';
$h{'d'} = 'D';
$h{'e'} = 'E';
$h{'f'} = 'F';
$h{'g'} = 'G';
$h{'h'} = 'H';
$h{'i'} = 'I';

$h{'goner2'} = 'snork';
delete $h{'goner2'};

untie(%h);
print (tie(%h,'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640) ? "ok 4\n" : "not ok 4\n");

$h{'j'} = 'J';
$h{'k'} = 'K';
$h{'l'} = 'L';
$h{'m'} = 'M';
$h{'n'} = 'N';
$h{'o'} = 'O';
$h{'p'} = 'P';
$h{'q'} = 'Q';
$h{'r'} = 'R';
$h{'s'} = 'S';
$h{'t'} = 'T';
$h{'u'} = 'U';
$h{'v'} = 'V';
$h{'w'} = 'W';
$h{'x'} = 'X';
$h{'y'} = 'Y';
$h{'z'} = 'Z';

$h{'goner3'} = 'snork';

delete $h{'goner1'};
delete $h{'goner3'};

my @keys = keys(%h);
my @values = values(%h);

if ($#keys == 29 && $#values == 29) {print "ok 5\n";} else {print "not ok 5\n";}

while (my ($key,$value) = each(%h)) {
    if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
	$key =~ y/a-z/A-Z/;
	$i++ if $key eq $value;
    }
}

if ($i == 30) {print "ok 6\n";} else {print "not ok 6\n";}

@keys = ('blurfl', keys(%h), 'dyick');
if ($#keys == 31) {print "ok 7\n";} else {print "not ok 7\n";}

$h{'foo'} = '';
$h{''} = 'bar';

# check cache overflow and numeric keys and contents
my $ok = 1;
for ($i = 1; $i < 200; $i++) { $h{$i + 0} = $i + 0; }
for ($i = 1; $i < 200; $i++) { $ok = 0 unless $h{$i} == $i; }
print ($ok ? "ok 8\n" : "not ok 8\n");

my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
   $blksize,$blocks) = stat($Dfile);
print ($size > 0 ? "ok 9\n" : "not ok 9\n");

@h{0..200} = 200..400;
my @foo = @h{0..200};
print join(':',200..400) eq join(':',@foo) ? "ok 10\n" : "not ok 10\n";

print ($h{'foo'} eq '' ? "ok 11\n" : "not ok 11\n");
print ($h{''} eq 'bar' ? "ok 12\n" : "not ok 12\n");

untie %h;
unlink 'Op.dbmx.dir', $Dfile;

sub ok
{
    my $no = shift ;
    my $result = shift ;

    print "not " unless $result ;
    print "ok $no\n" ;
}

{
   # sub-class test

   package Another ;

   use strict ;
   use warnings ;

   open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ;
   print FILE <<'EOM' ;

   package SubDB ;

   use strict ;
   use vars qw(@ISA @EXPORT) ;

   require Exporter ;
   use GDBM_File;
   @ISA=qw(GDBM_File);
   @EXPORT = @GDBM_File::EXPORT ;

   sub STORE { 
	my $self = shift ;
        my $key = shift ;
        my $value = shift ;
        $self->SUPER::STORE($key, $value * 2) ;
   }

   sub FETCH { 
	my $self = shift ;
        my $key = shift ;
        $self->SUPER::FETCH($key) - 1 ;
   }

   sub A_new_method
   {
	my $self = shift ;
        my $key = shift ;
        my $value = $self->FETCH($key) ;
	return "[[$value]]" ;
   }

   1 ;
EOM

    close FILE ;

    BEGIN { push @INC, '.'; }
    unlink <dbhash.tmp*> ;

    eval 'use SubDB ; ';
    main::ok(13, $@ eq "") ;
    my %h ;
    my $X ;
    eval '
	$X = tie(%h, "SubDB","dbhash.tmp", &GDBM_WRCREAT, 0640 );
	' ;

    main::ok(14, $@ eq "") ;

    my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
    main::ok(15, $@ eq "") ;
    main::ok(16, $ret == 5) ;

    $ret = eval ' &GDBM_WRCREAT eq &main::GDBM_WRCREAT ' ;
    main::ok(17, $@ eq "" ) ;
    main::ok(18, $ret == 1) ;

    $ret = eval '$X->A_new_method("fred") ' ;
    main::ok(19, $@ eq "") ;
    main::ok(20, $ret eq "[[5]]") ;

    undef $X;
    untie(%h);
    unlink "SubDB.pm", <dbhash.tmp*> ;

}

{
   # DBM Filter tests
   use strict ;
   use warnings ;
   my (%h, $db) ;
   my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;

   sub checkOutput
   {
       my($fk, $sk, $fv, $sv) = @_ ;
       return
           $fetch_key eq $fk && $store_key eq $sk && 
	   $fetch_value eq $fv && $store_value eq $sv &&
	   $_ eq 'original' ;
   }
   
   unlink <Op.dbmx*>;
   ok(21, $db = tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640)) ;

   $db->filter_fetch_key   (sub { $fetch_key = $_ }) ;
   $db->filter_store_key   (sub { $store_key = $_ }) ;
   $db->filter_fetch_value (sub { $fetch_value = $_}) ;
   $db->filter_store_value (sub { $store_value = $_ }) ;

   $_ = "original" ;

   $h{"fred"} = "joe" ;
   #                   fk   sk     fv   sv
   ok(22, checkOutput( "", "fred", "", "joe")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(23, $h{"fred"} eq "joe");
   #                   fk    sk     fv    sv
   ok(24, checkOutput( "", "fred", "joe", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(25, $db->FIRSTKEY() eq "fred") ;
   #                    fk     sk  fv  sv
   ok(26, checkOutput( "fred", "", "", "")) ;

   # replace the filters, but remember the previous set
   my ($old_fk) = $db->filter_fetch_key   
   			(sub { $_ = uc $_ ; $fetch_key = $_ }) ;
   my ($old_sk) = $db->filter_store_key   
   			(sub { $_ = lc $_ ; $store_key = $_ }) ;
   my ($old_fv) = $db->filter_fetch_value 
   			(sub { $_ = "[$_]"; $fetch_value = $_ }) ;
   my ($old_sv) = $db->filter_store_value 
   			(sub { s/o/x/g; $store_value = $_ }) ;
   
   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   $h{"Fred"} = "Joe" ;
   #                   fk   sk     fv    sv
   ok(27, checkOutput( "", "fred", "", "Jxe")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(28, $h{"Fred"} eq "[Jxe]");
   #                   fk   sk     fv    sv
   ok(29, checkOutput( "", "fred", "[Jxe]", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(30, $db->FIRSTKEY() eq "FRED") ;
   #                   fk   sk     fv    sv
   ok(31, checkOutput( "FRED", "", "", "")) ;

   # put the original filters back
   $db->filter_fetch_key   ($old_fk);
   $db->filter_store_key   ($old_sk);
   $db->filter_fetch_value ($old_fv);
   $db->filter_store_value ($old_sv);

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   $h{"fred"} = "joe" ;
   ok(32, checkOutput( "", "fred", "", "joe")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(33, $h{"fred"} eq "joe");
   ok(34, checkOutput( "", "fred", "joe", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(35, $db->FIRSTKEY() eq "fred") ;
   ok(36, checkOutput( "fred", "", "", "")) ;

   # delete the filters
   $db->filter_fetch_key   (undef);
   $db->filter_store_key   (undef);
   $db->filter_fetch_value (undef);
   $db->filter_store_value (undef);

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   $h{"fred"} = "joe" ;
   ok(37, checkOutput( "", "", "", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(38, $h{"fred"} eq "joe");
   ok(39, checkOutput( "", "", "", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(40, $db->FIRSTKEY() eq "fred") ;
   ok(41, checkOutput( "", "", "", "")) ;

   undef $db ;
   untie %h;
   unlink <Op.dbmx*>;
}

{    
    # DBM Filter with a closure

    use strict ;
    use warnings ;
    my (%h, $db) ;

    unlink <Op.dbmx*>;
    ok(42, $db = tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640)) ;

    my %result = () ;

    sub Closure
    {
        my ($name) = @_ ;
	my $count = 0 ;
	my @kept = () ;

	return sub { ++$count ; 
		     push @kept, $_ ; 
		     $result{$name} = "$name - $count: [@kept]" ;
		   }
    }

    $db->filter_store_key(Closure("store key")) ;
    $db->filter_store_value(Closure("store value")) ;
    $db->filter_fetch_key(Closure("fetch key")) ;
    $db->filter_fetch_value(Closure("fetch value")) ;

    $_ = "original" ;

    $h{"fred"} = "joe" ;
    ok(43, $result{"store key"} eq "store key - 1: [fred]");
    ok(44, $result{"store value"} eq "store value - 1: [joe]");
    ok(45, !defined $result{"fetch key"} );
    ok(46, !defined $result{"fetch value"} );
    ok(47, $_ eq "original") ;

    ok(48, $db->FIRSTKEY() eq "fred") ;
    ok(49, $result{"store key"} eq "store key - 1: [fred]");
    ok(50, $result{"store value"} eq "store value - 1: [joe]");
    ok(51, $result{"fetch key"} eq "fetch key - 1: [fred]");
    ok(52, ! defined $result{"fetch value"} );
    ok(53, $_ eq "original") ;

    $h{"jim"}  = "john" ;
    ok(54, $result{"store key"} eq "store key - 2: [fred jim]");
    ok(55, $result{"store value"} eq "store value - 2: [joe john]");
    ok(56, $result{"fetch key"} eq "fetch key - 1: [fred]");
    ok(57, ! defined $result{"fetch value"} );
    ok(58, $_ eq "original") ;

    ok(59, $h{"fred"} eq "joe");
    ok(60, $result{"store key"} eq "store key - 3: [fred jim fred]");
    ok(61, $result{"store value"} eq "store value - 2: [joe john]");
    ok(62, $result{"fetch key"} eq "fetch key - 1: [fred]");
    ok(63, $result{"fetch value"} eq "fetch value - 1: [joe]");
    ok(64, $_ eq "original") ;

    undef $db ;
    untie %h;
    unlink <Op.dbmx*>;
}

{
   # DBM Filter recursion detection
   use strict ;
   use warnings ;
   my (%h, $db) ;
   unlink <Op.dbmx*>;

   ok(65, $db = tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640)) ;

   $db->filter_store_key (sub { $_ = $h{$_} }) ;

   eval '$h{1} = 1234' ;
   ok(66, $@ =~ /^recursion detected in filter_store_key at/ );
   
   undef $db ;
   untie %h;
   unlink <Op.dbmx*>;
}

{
    # Bug ID 20001013.009
    #
    # test that $hash{KEY} = undef doesn't produce the warning
    #     Use of uninitialized value in null operation 
    use warnings ;
    use strict ;
    use GDBM_File ;

    unlink <Op.dbmx*>;
    my %h ;
    my $a = "";
    local $SIG{__WARN__} = sub {$a = $_[0]} ;
    
    ok(67, tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640));
    $h{ABC} = undef;
    ok(68, $a eq "") ;
    untie %h;
    unlink <Op.dbmx*>;
}
Commit	Line	Data
bee1dbe2	1	#!./perl
bee1dbe2	2
a0d0e21e	3	# $RCSfile: dbm.t,v $$Revision: 4.1 $$Date: 92/08/07 18:27:43 $
	4
	5	BEGIN {
20822f61	6	@INC = '../lib';
a0d0e21e	7	require Config; import Config;
a0d0e21e	8	if ($Config{'extensions'} !~ /\bGDBM_File\b/) {
45c0de28	9	print "1..0 # Skip: GDBM_File was not built\n";
a0d0e21e	10	exit 0;
	11	}
	12	}
	13
698828ad	14	use strict;
	15	use warnings;
	16
	17
a0d0e21e	18	use GDBM_File;
a0d0e21e	19
cbc5248d	20	print "1..68\n";
bee1dbe2	21
a0d0e21e	22	unlink <Op.dbmx*>;
a0d0e21e	23
bee1dbe2	24	umask(0);
698828ad	25	my %h ;
698828ad	26	print (tie(%h,'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640) ? "ok 1\n" : "not ok 1\n");
a0d0e21e	27
698828ad	28	my $Dfile = "Op.dbmx.pag";
a0d0e21e	29	if (! -e $Dfile) {
	30	($Dfile) = <Op.dbmx*>;
	31	}
39e571d4	32	if ($^O eq 'amigaos' \|\| $^O eq 'os2' \|\| $^O eq 'MSWin32' \|\| $^O eq 'dos') {
fac76ed7	33	print "ok 2 # Skipped: different file permission semantics\n";
544a3566	34	}
544a3566	35	else {
698828ad	36	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
544a3566	37	$blksize,$blocks) = stat($Dfile);
	38	print (($mode & 0777) == 0640 ? "ok 2\n" : "not ok 2\n");
	39	}
698828ad	40	my $i = 0;
698828ad	41	while (my ($key,$value) = each(%h)) {
bee1dbe2	42	$i++;
	43	}
	44	print (!$i ? "ok 3\n" : "not ok 3\n");
	45
	46	$h{'goner1'} = 'snork';
	47
	48	$h{'abc'} = 'ABC';
	49	$h{'def'} = 'DEF';
	50	$h{'jkl','mno'} = "JKL\034MNO";
	51	$h{'a',2,3,4,5} = join("\034",'A',2,3,4,5);
	52	$h{'a'} = 'A';
	53	$h{'b'} = 'B';
	54	$h{'c'} = 'C';
	55	$h{'d'} = 'D';
	56	$h{'e'} = 'E';
	57	$h{'f'} = 'F';
	58	$h{'g'} = 'G';
	59	$h{'h'} = 'H';
	60	$h{'i'} = 'I';
	61
	62	$h{'goner2'} = 'snork';
	63	delete $h{'goner2'};
	64
a0d0e21e	65	untie(%h);
698828ad	66	print (tie(%h,'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640) ? "ok 4\n" : "not ok 4\n");
bee1dbe2	67
	68	$h{'j'} = 'J';
	69	$h{'k'} = 'K';
	70	$h{'l'} = 'L';
	71	$h{'m'} = 'M';
	72	$h{'n'} = 'N';
	73	$h{'o'} = 'O';
	74	$h{'p'} = 'P';
	75	$h{'q'} = 'Q';
	76	$h{'r'} = 'R';
	77	$h{'s'} = 'S';
	78	$h{'t'} = 'T';
	79	$h{'u'} = 'U';
	80	$h{'v'} = 'V';
	81	$h{'w'} = 'W';
	82	$h{'x'} = 'X';
	83	$h{'y'} = 'Y';
	84	$h{'z'} = 'Z';
	85
	86	$h{'goner3'} = 'snork';
	87
	88	delete $h{'goner1'};
	89	delete $h{'goner3'};
	90
698828ad	91	my @keys = keys(%h);
698828ad	92	my @values = values(%h);
bee1dbe2	93
	94	if ($#keys == 29 && $#values == 29) {print "ok 5\n";} else {print "not ok 5\n";}
	95
698828ad	96	while (my ($key,$value) = each(%h)) {
2f52a358	97	if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
bee1dbe2	98	$key =~ y/a-z/A-Z/;
	99	$i++ if $key eq $value;
	100	}
	101	}
	102
	103	if ($i == 30) {print "ok 6\n";} else {print "not ok 6\n";}
	104
c6aa4a32	105	@keys = ('blurfl', keys(%h), 'dyick');
bee1dbe2	106	if ($#keys == 31) {print "ok 7\n";} else {print "not ok 7\n";}
	107
	108	$h{'foo'} = '';
	109	$h{''} = 'bar';
	110
	111	# check cache overflow and numeric keys and contents
698828ad	112	my $ok = 1;
bee1dbe2	113	for ($i = 1; $i < 200; $i++) { $h{$i + 0} = $i + 0; }
	114	for ($i = 1; $i < 200; $i++) { $ok = 0 unless $h{$i} == $i; }
	115	print ($ok ? "ok 8\n" : "not ok 8\n");
	116
698828ad	117	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
a0d0e21e	118	$blksize,$blocks) = stat($Dfile);
bee1dbe2	119	print ($size > 0 ? "ok 9\n" : "not ok 9\n");
	120
	121	@h{0..200} = 200..400;
698828ad	122	my @foo = @h{0..200};
bee1dbe2	123	print join(':',200..400) eq join(':',@foo) ? "ok 10\n" : "not ok 10\n";
	124
	125	print ($h{'foo'} eq '' ? "ok 11\n" : "not ok 11\n");
	126	print ($h{''} eq 'bar' ? "ok 12\n" : "not ok 12\n");
	127
bbad3607	128	untie %h;
a0d0e21e	129	unlink 'Op.dbmx.dir', $Dfile;
4e2a63a7	130
	131	sub ok
	132	{
	133	my $no = shift ;
	134	my $result = shift ;
	135
	136	print "not " unless $result ;
	137	print "ok $no\n" ;
	138	}
	139
	140	{
	141	# sub-class test
	142
	143	package Another ;
	144
	145	use strict ;
698828ad	146	use warnings ;
4e2a63a7	147
	148	open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ;
	149	print FILE <<'EOM' ;
	150
	151	package SubDB ;
	152
	153	use strict ;
	154	use vars qw(@ISA @EXPORT) ;
	155
	156	require Exporter ;
	157	use GDBM_File;
	158	@ISA=qw(GDBM_File);
	159	@EXPORT = @GDBM_File::EXPORT ;
	160
	161	sub STORE {
	162	my $self = shift ;
	163	my $key = shift ;
	164	my $value = shift ;
	165	$self->SUPER::STORE($key, $value * 2) ;
	166	}
	167
	168	sub FETCH {
	169	my $self = shift ;
	170	my $key = shift ;
	171	$self->SUPER::FETCH($key) - 1 ;
	172	}
	173
	174	sub A_new_method
	175	{
	176	my $self = shift ;
	177	my $key = shift ;
	178	my $value = $self->FETCH($key) ;
	179	return "[[$value]]" ;
	180	}
	181
	182	1 ;
	183	EOM
	184
	185	close FILE ;
	186
	187	BEGIN { push @INC, '.'; }
cbc5248d	188	unlink <dbhash.tmp*> ;
4e2a63a7	189
	190	eval 'use SubDB ; ';
	191	main::ok(13, $@ eq "") ;
	192	my %h ;
	193	my $X ;
	194	eval '
	195	$X = tie(%h, "SubDB","dbhash.tmp", &GDBM_WRCREAT, 0640 );
	196	' ;
	197
	198	main::ok(14, $@ eq "") ;
	199
	200	my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
	201	main::ok(15, $@ eq "") ;
	202	main::ok(16, $ret == 5) ;
	203
	204	$ret = eval ' &GDBM_WRCREAT eq &main::GDBM_WRCREAT ' ;
	205	main::ok(17, $@ eq "" ) ;
	206	main::ok(18, $ret == 1) ;
	207
	208	$ret = eval '$X->A_new_method("fred") ' ;
	209	main::ok(19, $@ eq "") ;
	210	main::ok(20, $ret eq "[[5]]") ;
	211
fac76ed7	212	undef $X;
fac76ed7	213	untie(%h);
84902520	214	unlink "SubDB.pm", <dbhash.tmp*> ;
4e2a63a7	215
4e2a63a7	216	}
9fe6733a	217
	218	{
	219	# DBM Filter tests
	220	use strict ;
698828ad	221	use warnings ;
9fe6733a	222	my (%h, $db) ;
	223	my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	224
	225	sub checkOutput
	226	{
	227	my($fk, $sk, $fv, $sv) = @_ ;
	228	return
	229	$fetch_key eq $fk && $store_key eq $sk &&
	230	$fetch_value eq $fv && $store_value eq $sv &&
	231	$_ eq 'original' ;
	232	}
	233
	234	unlink <Op.dbmx*>;
	235	ok(21, $db = tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640)) ;
	236
	237	$db->filter_fetch_key (sub { $fetch_key = $_ }) ;
	238	$db->filter_store_key (sub { $store_key = $_ }) ;
	239	$db->filter_fetch_value (sub { $fetch_value = $_}) ;
	240	$db->filter_store_value (sub { $store_value = $_ }) ;
	241
	242	$_ = "original" ;
	243
	244	$h{"fred"} = "joe" ;
	245	# fk sk fv sv
	246	ok(22, checkOutput( "", "fred", "", "joe")) ;
	247
	248	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	249	ok(23, $h{"fred"} eq "joe");
	250	# fk sk fv sv
	251	ok(24, checkOutput( "", "fred", "joe", "")) ;
	252
	253	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	254	ok(25, $db->FIRSTKEY() eq "fred") ;
	255	# fk sk fv sv
	256	ok(26, checkOutput( "fred", "", "", "")) ;
	257
	258	# replace the filters, but remember the previous set
	259	my ($old_fk) = $db->filter_fetch_key
	260	(sub { $_ = uc $_ ; $fetch_key = $_ }) ;
	261	my ($old_sk) = $db->filter_store_key
	262	(sub { $_ = lc $_ ; $store_key = $_ }) ;
	263	my ($old_fv) = $db->filter_fetch_value
	264	(sub { $_ = "[$_]"; $fetch_value = $_ }) ;
	265	my ($old_sv) = $db->filter_store_value
	266	(sub { s/o/x/g; $store_value = $_ }) ;
	267
	268	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	269	$h{"Fred"} = "Joe" ;
	270	# fk sk fv sv
	271	ok(27, checkOutput( "", "fred", "", "Jxe")) ;
	272
	273	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	274	ok(28, $h{"Fred"} eq "[Jxe]");
	275	# fk sk fv sv
	276	ok(29, checkOutput( "", "fred", "[Jxe]", "")) ;
	277
	278	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	279	ok(30, $db->FIRSTKEY() eq "FRED") ;
	280	# fk sk fv sv
	281	ok(31, checkOutput( "FRED", "", "", "")) ;
	282
	283	# put the original filters back
	284	$db->filter_fetch_key ($old_fk);
	285	$db->filter_store_key ($old_sk);
286	$db->filter_fetch_value ($old_fv);
287	$db->filter_store_value ($old_sv);
288
289	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
290	$h{"fred"} = "joe" ;
291	ok(32, checkOutput( "", "fred", "", "joe")) ;
292
293	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
294	ok(33, $h{"fred"} eq "joe");
295	ok(34, checkOutput( "", "fred", "joe", "")) ;
296
297	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
298	ok(35, $db->FIRSTKEY() eq "fred") ;
299	ok(36, checkOutput( "fred", "", "", "")) ;
300
301	# delete the filters
302	$db->filter_fetch_key (undef);
303	$db->filter_store_key (undef);
304	$db->filter_fetch_value (undef);
305	$db->filter_store_value (undef);
306
307	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
308	$h{"fred"} = "joe" ;
309	ok(37, checkOutput( "", "", "", "")) ;
310
311	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
312	ok(38, $h{"fred"} eq "joe");
313	ok(39, checkOutput( "", "", "", "")) ;
314
315	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
316	ok(40, $db->FIRSTKEY() eq "fred") ;
317	ok(41, checkOutput( "", "", "", "")) ;
318
319	undef $db ;
320	untie %h;
321	unlink <Op.dbmx*>;
322	}
323
324	{
325	# DBM Filter with a closure
326
327	use strict ;
698828ad	328	use warnings ;
9fe6733a	329	my (%h, $db) ;
	330
	331	unlink <Op.dbmx*>;
	332	ok(42, $db = tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640)) ;
	333
	334	my %result = () ;
	335
	336	sub Closure
	337	{
	338	my ($name) = @_ ;
	339	my $count = 0 ;
	340	my @kept = () ;
	341
	342	return sub { ++$count ;
	343	push @kept, $_ ;
	344	$result{$name} = "$name - $count: [@kept]" ;
	345	}
	346	}
	347
	348	$db->filter_store_key(Closure("store key")) ;
	349	$db->filter_store_value(Closure("store value")) ;
	350	$db->filter_fetch_key(Closure("fetch key")) ;
	351	$db->filter_fetch_value(Closure("fetch value")) ;
	352
	353	$_ = "original" ;
	354
	355	$h{"fred"} = "joe" ;
	356	ok(43, $result{"store key"} eq "store key - 1: [fred]");
	357	ok(44, $result{"store value"} eq "store value - 1: [joe]");
	358	ok(45, !defined $result{"fetch key"} );
	359	ok(46, !defined $result{"fetch value"} );
	360	ok(47, $_ eq "original") ;
	361
	362	ok(48, $db->FIRSTKEY() eq "fred") ;
	363	ok(49, $result{"store key"} eq "store key - 1: [fred]");
	364	ok(50, $result{"store value"} eq "store value - 1: [joe]");
	365	ok(51, $result{"fetch key"} eq "fetch key - 1: [fred]");
	366	ok(52, ! defined $result{"fetch value"} );
	367	ok(53, $_ eq "original") ;
	368
	369	$h{"jim"} = "john" ;
	370	ok(54, $result{"store key"} eq "store key - 2: [fred jim]");
	371	ok(55, $result{"store value"} eq "store value - 2: [joe john]");
	372	ok(56, $result{"fetch key"} eq "fetch key - 1: [fred]");
698828ad	373	ok(57, ! defined $result{"fetch value"} );
9fe6733a	374	ok(58, $_ eq "original") ;
	375
	376	ok(59, $h{"fred"} eq "joe");
	377	ok(60, $result{"store key"} eq "store key - 3: [fred jim fred]");
	378	ok(61, $result{"store value"} eq "store value - 2: [joe john]");
	379	ok(62, $result{"fetch key"} eq "fetch key - 1: [fred]");
	380	ok(63, $result{"fetch value"} eq "fetch value - 1: [joe]");
	381	ok(64, $_ eq "original") ;
	382
	383	undef $db ;
	384	untie %h;
	385	unlink <Op.dbmx*>;
	386	}
	387
	388	{
	389	# DBM Filter recursion detection
	390	use strict ;
698828ad	391	use warnings ;
9fe6733a	392	my (%h, $db) ;
	393	unlink <Op.dbmx*>;
	394
	395	ok(65, $db = tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640)) ;
	396
	397	$db->filter_store_key (sub { $_ = $h{$_} }) ;
	398
	399	eval '$h{1} = 1234' ;
	400	ok(66, $@ =~ /^recursion detected in filter_store_key at/ );
	401
	402	undef $db ;
	403	untie %h;
	404	unlink <Op.dbmx*>;
	405	}
cbc5248d	406
	407	{
	408	# Bug ID 20001013.009
	409	#
	410	# test that $hash{KEY} = undef doesn't produce the warning
	411	# Use of uninitialized value in null operation
	412	use warnings ;
	413	use strict ;
	414	use GDBM_File ;
	415
	416	unlink <Op.dbmx*>;
	417	my %h ;
	418	my $a = "";
	419	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	420
	421	ok(67, tie(%h, 'GDBM_File','Op.dbmx', &GDBM_WRCREAT, 0640));
	422	$h{ABC} = undef;
	423	ok(68, $a eq "") ;
	424	untie %h;
	425	unlink <Op.dbmx*>;
	426	}