[p5sagit/p5-mst-13.2.git] / ext / DB_File / t / db-hash.t

#!./perl 

BEGIN {
    unless(grep /blib/, @INC) {
        chdir 't' if -d 't';
        @INC = '../lib' if -d '../lib';
    }
}
 
use warnings;
use strict;
use Config;
 
BEGIN {
    if(-d "lib" && -f "TEST") {
        if ($Config{'extensions'} !~ /\bDB_File\b/ ) {
            print "1..0 # Skip: DB_File was not built\n";
            exit 0;
        }
    }
}

use strict;
use warnings;
use DB_File; 
use Fcntl;

print "1..117\n";

sub ok
{
    my $no = shift ;
    my $result = shift ;
 
    print "not " unless $result ;
    print "ok $no\n" ;
}

{
    package Redirect ;
    use Symbol ;

    sub new
    {
        my $class = shift ;
        my $filename = shift ;
	my $fh = gensym ;
	open ($fh, ">$filename") || die "Cannot open $filename: $!" ;
	my $real_stdout = select($fh) ;
	return bless [$fh, $real_stdout ] ;

    }
    sub DESTROY
    {
        my $self = shift ;
	close $self->[0] ;
	select($self->[1]) ;
    }
}

sub docat_del
{ 
    my $file = shift;
    local $/ = undef;
    open(CAT,$file) || die "Cannot open $file: $!";
    my $result = <CAT>;
    close(CAT);
    $result = normalise($result) ;
    unlink $file ;
    return $result;
}   

sub normalise
{
    my $data = shift ;
    $data =~ s#\r\n#\n#g 
        if $^O eq 'cygwin' ;
    return $data ;
}


my $Dfile = "dbhash.tmp";
my $null_keys_allowed = ($DB_File::db_ver < 2.004010 
				|| $DB_File::db_ver >= 3.1 );

unlink $Dfile;

umask(0);

# Check the interface to HASHINFO

my $dbh = new DB_File::HASHINFO ;

ok(1, ! defined $dbh->{bsize}) ;
ok(2, ! defined $dbh->{ffactor}) ;
ok(3, ! defined $dbh->{nelem}) ;
ok(4, ! defined $dbh->{cachesize}) ;
ok(5, ! defined $dbh->{hash}) ;
ok(6, ! defined $dbh->{lorder}) ;

$dbh->{bsize} = 3000 ;
ok(7, $dbh->{bsize} == 3000 );

$dbh->{ffactor} = 9000 ;
ok(8, $dbh->{ffactor} == 9000 );

$dbh->{nelem} = 400 ;
ok(9, $dbh->{nelem} == 400 );

$dbh->{cachesize} = 65 ;
ok(10, $dbh->{cachesize} == 65 );

$dbh->{hash} = "abc" ;
ok(11, $dbh->{hash} eq "abc" );

$dbh->{lorder} = 1234 ;
ok(12, $dbh->{lorder} == 1234 );

# Check that an invalid entry is caught both for store & fetch
eval '$dbh->{fred} = 1234' ;
ok(13, $@ =~ /^DB_File::HASHINFO::STORE - Unknown element 'fred' at/ );
eval 'my $q = $dbh->{fred}' ;
ok(14, $@ =~ /^DB_File::HASHINFO::FETCH - Unknown element 'fred' at/ );


# Now check the interface to HASH
my ($X, %h);
ok(15, $X = tie(%h, 'DB_File',$Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );

my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
   $blksize,$blocks) = stat($Dfile);

my %noMode = map { $_, 1} qw( amigaos MSWin32 NetWare cygwin ) ;

ok(16, ($mode & 0777) == (($^O eq 'os2' || $^O eq 'MacOS') ? 0666 : 0640) ||
   $noMode{$^O} );

my ($key, $value, $i);
while (($key,$value) = each(%h)) {
    $i++;
}
ok(17, !$i );

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

$h{'abc'} = 'ABC';
ok(18, $h{'abc'} eq 'ABC' );
ok(19, !defined $h{'jimmy'} );
ok(20, !exists $h{'jimmy'} );
ok(21, exists $h{'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';
$X->STORE('b', 'B') ;

$h{'c'} = 'C';

#$h{'d'} = 'D';
$X->put('d', 'D') ;

$h{'e'} = 'E';
$h{'f'} = 'F';
$h{'g'} = 'X';
$h{'h'} = 'H';
$h{'i'} = 'I';

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


# IMPORTANT - $X must be undefined before the untie otherwise the
#             underlying DB close routine will not get called.
undef $X ;
untie(%h);


# tie to the same file again, do not supply a type - should default to HASH
ok(22, $X = tie(%h,'DB_File',$Dfile, O_RDWR, 0640) );

# Modify an entry from the previous tie
$h{'g'} = 'G';

$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'};
$X->DELETE('goner3');

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

ok(23, $#keys == 29 && $#values == 29) ;

$i = 0 ;
while (($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;
    }
}

ok(24, $i == 30) ;

@keys = ('blurfl', keys(%h), 'dyick');
ok(25, $#keys == 31) ;

$h{'foo'} = '';
ok(26, $h{'foo'} eq '' );

# Berkeley DB from version 2.4.10 to 3.0 does not allow null keys.
# This feature was reenabled in version 3.1 of Berkeley DB.
my $result = 0 ;
if ($null_keys_allowed) {
    $h{''} = 'bar';
    $result = ( $h{''} eq 'bar' );
}
else
  { $result = 1 }
ok(27, $result) ;

# 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; }
ok(28, $ok );

($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
   $blksize,$blocks) = stat($Dfile);
ok(29, $size > 0 );

@h{0..200} = 200..400;
my @foo = @h{0..200};
ok(30, join(':',200..400) eq join(':',@foo) );


# Now check all the non-tie specific stuff

# Check NOOVERWRITE will make put fail when attempting to overwrite
# an existing record.
 
my $status = $X->put( 'x', 'newvalue', R_NOOVERWRITE) ;
ok(31, $status == 1 );
 
# check that the value of the key 'x' has not been changed by the 
# previous test
ok(32, $h{'x'} eq 'X' );

# standard put
$status = $X->put('key', 'value') ;
ok(33, $status == 0 );

#check that previous put can be retrieved
$value = 0 ;
$status = $X->get('key', $value) ;
ok(34, $status == 0 );
ok(35, $value eq 'value' );

# Attempting to delete an existing key should work

$status = $X->del('q') ;
ok(36, $status == 0 );

# Make sure that the key deleted, cannot be retrieved
{
    no warnings 'uninitialized' ;
    ok(37, $h{'q'} eq undef );
}

# Attempting to delete a non-existant key should fail

$status = $X->del('joe') ;
ok(38, $status == 1 );

# Check the get interface

# First a non-existing key
$status = $X->get('aaaa', $value) ;
ok(39, $status == 1 );

# Next an existing key
$status = $X->get('a', $value) ;
ok(40, $status == 0 );
ok(41, $value eq 'A' );

# seq
# ###

# ditto, but use put to replace the key/value pair.

# use seq to walk backwards through a file - check that this reversed is

# check seq FIRST/LAST

# sync
# ####

$status = $X->sync ;
ok(42, $status == 0 );


# fd
# ##

$status = $X->fd ;
ok(43, $status != 0 );

undef $X ;
untie %h ;

unlink $Dfile;

# clear
# #####

ok(44, tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
foreach (1 .. 10)
  { $h{$_} = $_ * 100 }

# check that there are 10 elements in the hash
$i = 0 ;
while (($key,$value) = each(%h)) {
    $i++;
}
ok(45, $i == 10);

# now clear the hash
%h = () ;

# check it is empty
$i = 0 ;
while (($key,$value) = each(%h)) {
    $i++;
}
ok(46, $i == 0);

untie %h ;
unlink $Dfile ;


# Now try an in memory file
ok(47, $X = tie(%h, 'DB_File',undef, O_RDWR|O_CREAT, 0640, $DB_HASH ) );

# fd with an in memory file should return fail
$status = $X->fd ;
ok(48, $status == -1 );

undef $X ;
untie %h ;

{
    # check ability to override the default hashing
    my %x ;
    my $filename = "xyz" ;
    my $hi = new DB_File::HASHINFO ;
    $::count = 0 ;
    $hi->{hash} = sub { ++$::count ; length $_[0] } ;
    ok(49, tie %x, 'DB_File', $filename, O_RDWR|O_CREAT, 0640, $hi ) ;
    $h{"abc"} = 123 ;
    ok(50, $h{"abc"} == 123) ;
    untie %x ;
    unlink $filename ;
    ok(51, $::count >0) ;
}

{
    # check that attempting to tie an array to a DB_HASH will fail

    my $filename = "xyz" ;
    my @x ;
    eval { tie @x, 'DB_File', $filename, O_RDWR|O_CREAT, 0640, $DB_HASH ; } ;
    ok(52, $@ =~ /^DB_File can only tie an associative array to a DB_HASH database/) ;
    unlink $filename ;
}

{
   # sub-class test

   package Another ;

   use warnings ;
   use strict ;

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

   package SubDB ;

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

   require Exporter ;
   use DB_File;
   @ISA=qw(DB_File);
   @EXPORT = @DB_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 put { 
	my $self = shift ;
        my $key = shift ;
        my $value = shift ;
        $self->SUPER::put($key, $value * 3) ;
   }

   sub get { 
	my $self = shift ;
        $self->SUPER::get($_[0], $_[1]) ;
	$_[1] -= 2 ;
   }

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

   1 ;
EOM

    close FILE ;

    BEGIN { push @INC, '.'; }             
    eval 'use SubDB ; ';
    main::ok(53, $@ eq "") ;
    my %h ;
    my $X ;
    eval '
	$X = tie(%h, "SubDB","dbhash.tmp", O_RDWR|O_CREAT, 0640, $DB_HASH );
	' ;

    main::ok(54, $@ eq "") ;

    my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
    main::ok(55, $@ eq "") ;
    main::ok(56, $ret == 5) ;

    my $value = 0;
    $ret = eval '$X->put("joe", 4) ; $X->get("joe", $value) ; return $value' ;
    main::ok(57, $@ eq "") ;
    main::ok(58, $ret == 10) ;

    $ret = eval ' R_NEXT eq main::R_NEXT ' ;
    main::ok(59, $@ eq "" ) ;
    main::ok(60, $ret == 1) ;

    $ret = eval '$X->A_new_method("joe") ' ;
    main::ok(61, $@ eq "") ;
    main::ok(62, $ret eq "[[11]]") ;

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

}

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

   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' ;
   }
   
   ok(63, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );

   $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(64, checkOutput( "", "fred", "", "joe")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(65, $h{"fred"} eq "joe");
   #                   fk    sk     fv    sv
   ok(66, checkOutput( "", "fred", "joe", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(67, $db->FIRSTKEY() eq "fred") ;
   #                    fk     sk  fv  sv
   ok(68, 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(69, checkOutput( "", "fred", "", "Jxe")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(70, $h{"Fred"} eq "[Jxe]");
   #                   fk   sk     fv    sv
   ok(71, checkOutput( "", "fred", "[Jxe]", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(72, $db->FIRSTKEY() eq "FRED") ;
   #                   fk   sk     fv    sv
   ok(73, 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(74, checkOutput( "", "fred", "", "joe")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(75, $h{"fred"} eq "joe");
   ok(76, checkOutput( "", "fred", "joe", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(77, $db->FIRSTKEY() eq "fred") ;
   ok(78, 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(79, checkOutput( "", "", "", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(80, $h{"fred"} eq "joe");
   ok(81, checkOutput( "", "", "", "")) ;

   ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
   ok(82, $db->FIRSTKEY() eq "fred") ;
   ok(83, checkOutput( "", "", "", "")) ;

   undef $db ;
   untie %h;
   unlink $Dfile;
}

{    
    # DBM Filter with a closure

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

    unlink $Dfile;
    ok(84, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );

    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(85, $result{"store key"} eq "store key - 1: [fred]");
    ok(86, $result{"store value"} eq "store value - 1: [joe]");
    ok(87, ! defined $result{"fetch key"} );
    ok(88, ! defined $result{"fetch value"} );
    ok(89, $_ eq "original") ;

    ok(90, $db->FIRSTKEY() eq "fred") ;
    ok(91, $result{"store key"} eq "store key - 1: [fred]");
    ok(92, $result{"store value"} eq "store value - 1: [joe]");
    ok(93, $result{"fetch key"} eq "fetch key - 1: [fred]");
    ok(94, ! defined $result{"fetch value"} );
    ok(95, $_ eq "original") ;

    $h{"jim"}  = "john" ;
    ok(96, $result{"store key"} eq "store key - 2: [fred jim]");
    ok(97, $result{"store value"} eq "store value - 2: [joe john]");
    ok(98, $result{"fetch key"} eq "fetch key - 1: [fred]");
    ok(99, ! defined $result{"fetch value"} );
    ok(100, $_ eq "original") ;

    ok(101, $h{"fred"} eq "joe");
    ok(102, $result{"store key"} eq "store key - 3: [fred jim fred]");
    ok(103, $result{"store value"} eq "store value - 2: [joe john]");
    ok(104, $result{"fetch key"} eq "fetch key - 1: [fred]");
    ok(105, $result{"fetch value"} eq "fetch value - 1: [joe]");
    ok(106, $_ eq "original") ;

    undef $db ;
    untie %h;
    unlink $Dfile;
}		

{
   # DBM Filter recursion detection
   use warnings ;
   use strict ;
   my (%h, $db) ;
   unlink $Dfile;

   ok(107, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );

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

   eval '$h{1} = 1234' ;
   ok(108, $@ =~ /^recursion detected in filter_store_key at/ );
   
   undef $db ;
   untie %h;
   unlink $Dfile;
}


{
   # Examples from the POD

  my $file = "xyzt" ;
  {
    my $redirect = new Redirect $file ;

    use warnings FATAL => qw(all);
    use strict ;
    use DB_File ;
    use vars qw( %h $k $v ) ;

    unlink "fruit" ;
    tie %h, "DB_File", "fruit", O_RDWR|O_CREAT, 0640, $DB_HASH 
        or die "Cannot open file 'fruit': $!\n";

    # Add a few key/value pairs to the file
    $h{"apple"} = "red" ;
    $h{"orange"} = "orange" ;
    $h{"banana"} = "yellow" ;
    $h{"tomato"} = "red" ;

    # Check for existence of a key
    print "Banana Exists\n\n" if $h{"banana"} ;

    # Delete a key/value pair.
    delete $h{"apple"} ;

    # print the contents of the file
    while (($k, $v) = each %h)
      { print "$k -> $v\n" }

    untie %h ;

    unlink "fruit" ;
  }  

  ok(109, docat_del($file) eq <<'EOM') ;
Banana Exists

orange -> orange
tomato -> red
banana -> yellow
EOM
   
}

{
    # 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 DB_File ;

    unlink $Dfile;
    my %h ;
    my $a = "";
    local $SIG{__WARN__} = sub {$a = $_[0]} ;
    
    tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
    $h{ABC} = undef;
    ok(110, $a eq "") ;
    untie %h ;
    unlink $Dfile;
}

{
    # test that %hash = () doesn't produce the warning
    #     Argument "" isn't numeric in entersub
    use warnings ;
    use strict ;
    use DB_File ;

    unlink $Dfile;
    my %h ;
    my $a = "";
    local $SIG{__WARN__} = sub {$a = $_[0]} ;
    
    tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
    %h = (); ;
    ok(111, $a eq "") ;
    untie %h ;
    unlink $Dfile;
}

{
    # When iterating over a tied hash using "each", the key passed to FETCH
    # will be recycled and passed to NEXTKEY. If a Source Filter modifies the
    # key in FETCH via a filter_fetch_key method we need to check that the
    # modified key doesn't get passed to NEXTKEY.
    # Also Test "keys" & "values" while we are at it.

    use warnings ;
    use strict ;
    use DB_File ;

    unlink $Dfile;
    my $bad_key = 0 ;
    my %h = () ;
    my $db ;
    ok(112, $db = tie(%h, 'DB_File', $Dfile, O_RDWR|O_CREAT, 0640, $DB_HASH ) );
    $db->filter_fetch_key (sub { $_ =~ s/^Beta_/Alpha_/ if defined $_}) ;
    $db->filter_store_key (sub { $bad_key = 1 if /^Beta_/ ; $_ =~ s/^Alpha_/Beta_/}) ;

    $h{'Alpha_ABC'} = 2 ;
    $h{'Alpha_DEF'} = 5 ;

    ok(113, $h{'Alpha_ABC'} == 2);
    ok(114, $h{'Alpha_DEF'} == 5);

    my ($k, $v) = ("","");
    while (($k, $v) = each %h) {}
    ok(115, $bad_key == 0);

    $bad_key = 0 ;
    foreach $k (keys %h) {}
    ok(116, $bad_key == 0);

    $bad_key = 0 ;
    foreach $v (values %h) {}
    ok(117, $bad_key == 0);

    undef $db ;
    untie %h ;
    unlink $Dfile;
}

exit ;
Commit	Line	Data
77fd2717	1	#!./perl
77fd2717	2
a0d0e21e	3	BEGIN {
77fd2717	4	unless(grep /blib/, @INC) {
	5	chdir 't' if -d 't';
	6	@INC = '../lib' if -d '../lib';
	7	}
	8	}
	9
bb50757b	10	use warnings;
bb50757b	11	use strict;
77fd2717	12	use Config;
	13
	14	BEGIN {
	15	if(-d "lib" && -f "TEST") {
	16	if ($Config{'extensions'} !~ /\bDB_File\b/ ) {
bb50757b	17	print "1..0 # Skip: DB_File was not built\n";
77fd2717	18	exit 0;
77fd2717	19	}
a0d0e21e	20	}
	21	}
	22
3245f058	23	use strict;
3245f058	24	use warnings;
a0d0e21e	25	use DB_File;
	26	use Fcntl;
	27
0bf2e707	28	print "1..117\n";
f6b705ef	29
	30	sub ok
	31	{
	32	my $no = shift ;
	33	my $result = shift ;
	34
	35	print "not " unless $result ;
	36	print "ok $no\n" ;
	37	}
a0d0e21e	38
2c2d71f5	39	{
	40	package Redirect ;
	41	use Symbol ;
	42
	43	sub new
	44	{
	45	my $class = shift ;
	46	my $filename = shift ;
	47	my $fh = gensym ;
	48	open ($fh, ">$filename") \|\| die "Cannot open $filename: $!" ;
	49	my $real_stdout = select($fh) ;
	50	return bless [$fh, $real_stdout ] ;
	51
	52	}
	53	sub DESTROY
	54	{
	55	my $self = shift ;
	56	close $self->[0] ;
	57	select($self->[1]) ;
	58	}
	59	}
	60
	61	sub docat_del
	62	{
	63	my $file = shift;
	64	local $/ = undef;
	65	open(CAT,$file) \|\| die "Cannot open $file: $!";
	66	my $result = <CAT>;
	67	close(CAT);
77fd2717	68	$result = normalise($result) ;
2c2d71f5	69	unlink $file ;
	70	return $result;
	71	}
	72
77fd2717	73	sub normalise
	74	{
	75	my $data = shift ;
	76	$data =~ s#\r\n#\n#g
	77	if $^O eq 'cygwin' ;
	78	return $data ;
	79	}
	80
	81
	82
9fe6733a	83	my $Dfile = "dbhash.tmp";
3245f058	84	my $null_keys_allowed = ($DB_File::db_ver < 2.004010
	85	\|\| $DB_File::db_ver >= 3.1 );
	86
a0d0e21e	87	unlink $Dfile;
	88
	89	umask(0);
	90
	91	# Check the interface to HASHINFO
	92
f6b705ef	93	my $dbh = new DB_File::HASHINFO ;
f6b705ef	94
3fe9a6f1	95	ok(1, ! defined $dbh->{bsize}) ;
	96	ok(2, ! defined $dbh->{ffactor}) ;
	97	ok(3, ! defined $dbh->{nelem}) ;
	98	ok(4, ! defined $dbh->{cachesize}) ;
	99	ok(5, ! defined $dbh->{hash}) ;
	100	ok(6, ! defined $dbh->{lorder}) ;
a0d0e21e	101
a0d0e21e	102	$dbh->{bsize} = 3000 ;
f6b705ef	103	ok(7, $dbh->{bsize} == 3000 );
a0d0e21e	104
a0d0e21e	105	$dbh->{ffactor} = 9000 ;
f6b705ef	106	ok(8, $dbh->{ffactor} == 9000 );
f6b705ef	107
a0d0e21e	108	$dbh->{nelem} = 400 ;
f6b705ef	109	ok(9, $dbh->{nelem} == 400 );
a0d0e21e	110
a0d0e21e	111	$dbh->{cachesize} = 65 ;
f6b705ef	112	ok(10, $dbh->{cachesize} == 65 );
a0d0e21e	113
a0d0e21e	114	$dbh->{hash} = "abc" ;
f6b705ef	115	ok(11, $dbh->{hash} eq "abc" );
a0d0e21e	116
a0d0e21e	117	$dbh->{lorder} = 1234 ;
f6b705ef	118	ok(12, $dbh->{lorder} == 1234 );
a0d0e21e	119
	120	# Check that an invalid entry is caught both for store & fetch
	121	eval '$dbh->{fred} = 1234' ;
f6b705ef	122	ok(13, $@ =~ /^DB_File::HASHINFO::STORE - Unknown element 'fred' at/ );
610ab055	123	eval 'my $q = $dbh->{fred}' ;
f6b705ef	124	ok(14, $@ =~ /^DB_File::HASHINFO::FETCH - Unknown element 'fred' at/ );
a0d0e21e	125
610ab055	126
a0d0e21e	127	# Now check the interface to HASH
3245f058	128	my ($X, %h);
f6b705ef	129	ok(15, $X = tie(%h, 'DB_File',$Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
a0d0e21e	130
3245f058	131	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
a0d0e21e	132	$blksize,$blocks) = stat($Dfile);
77fd2717	133
	134	my %noMode = map { $_, 1} qw( amigaos MSWin32 NetWare cygwin ) ;
	135
d536870a	136	ok(16, ($mode & 0777) == (($^O eq 'os2' \|\| $^O eq 'MacOS') ? 0666 : 0640) \|\|
77fd2717	137	$noMode{$^O} );
a0d0e21e	138
3245f058	139	my ($key, $value, $i);
a0d0e21e	140	while (($key,$value) = each(%h)) {
	141	$i++;
	142	}
f6b705ef	143	ok(17, !$i );
a0d0e21e	144
	145	$h{'goner1'} = 'snork';
	146
	147	$h{'abc'} = 'ABC';
f6b705ef	148	ok(18, $h{'abc'} eq 'ABC' );
	149	ok(19, !defined $h{'jimmy'} );
	150	ok(20, !exists $h{'jimmy'} );
	151	ok(21, exists $h{'abc'} );
a0d0e21e	152
	153	$h{'def'} = 'DEF';
	154	$h{'jkl','mno'} = "JKL\034MNO";
	155	$h{'a',2,3,4,5} = join("\034",'A',2,3,4,5);
	156	$h{'a'} = 'A';
	157
	158	#$h{'b'} = 'B';
	159	$X->STORE('b', 'B') ;
	160
	161	$h{'c'} = 'C';
	162
	163	#$h{'d'} = 'D';
	164	$X->put('d', 'D') ;
	165
	166	$h{'e'} = 'E';
	167	$h{'f'} = 'F';
	168	$h{'g'} = 'X';
	169	$h{'h'} = 'H';
	170	$h{'i'} = 'I';
	171
	172	$h{'goner2'} = 'snork';
	173	delete $h{'goner2'};
	174
	175
	176	# IMPORTANT - $X must be undefined before the untie otherwise the
	177	# underlying DB close routine will not get called.
	178	undef $X ;
	179	untie(%h);
	180
	181
	182	# tie to the same file again, do not supply a type - should default to HASH
f6b705ef	183	ok(22, $X = tie(%h,'DB_File',$Dfile, O_RDWR, 0640) );
a0d0e21e	184
	185	# Modify an entry from the previous tie
	186	$h{'g'} = 'G';
	187
	188	$h{'j'} = 'J';
	189	$h{'k'} = 'K';
	190	$h{'l'} = 'L';
	191	$h{'m'} = 'M';
	192	$h{'n'} = 'N';
	193	$h{'o'} = 'O';
	194	$h{'p'} = 'P';
	195	$h{'q'} = 'Q';
	196	$h{'r'} = 'R';
	197	$h{'s'} = 'S';
	198	$h{'t'} = 'T';
	199	$h{'u'} = 'U';
	200	$h{'v'} = 'V';
	201	$h{'w'} = 'W';
	202	$h{'x'} = 'X';
	203	$h{'y'} = 'Y';
	204	$h{'z'} = 'Z';
	205
	206	$h{'goner3'} = 'snork';
	207
	208	delete $h{'goner1'};
	209	$X->DELETE('goner3');
	210
3245f058	211	my @keys = keys(%h);
3245f058	212	my @values = values(%h);
a0d0e21e	213
f6b705ef	214	ok(23, $#keys == 29 && $#values == 29) ;
a0d0e21e	215
f6b705ef	216	$i = 0 ;
55d68b4a	217	while (($key,$value) = each(%h)) {
2f52a358	218	if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
a0d0e21e	219	$key =~ y/a-z/A-Z/;
	220	$i++ if $key eq $value;
	221	}
	222	}
	223
f6b705ef	224	ok(24, $i == 30) ;
a0d0e21e	225
55d68b4a	226	@keys = ('blurfl', keys(%h), 'dyick');
f6b705ef	227	ok(25, $#keys == 31) ;
a0d0e21e	228
a0d0e21e	229	$h{'foo'} = '';
f6b705ef	230	ok(26, $h{'foo'} eq '' );
a0d0e21e	231
3245f058	232	# Berkeley DB from version 2.4.10 to 3.0 does not allow null keys.
	233	# This feature was reenabled in version 3.1 of Berkeley DB.
	234	my $result = 0 ;
	235	if ($null_keys_allowed) {
	236	$h{''} = 'bar';
	237	$result = ( $h{''} eq 'bar' );
	238	}
	239	else
	240	{ $result = 1 }
	241	ok(27, $result) ;
a0d0e21e	242
a0d0e21e	243	# check cache overflow and numeric keys and contents
3245f058	244	my $ok = 1;
a0d0e21e	245	for ($i = 1; $i < 200; $i++) { $h{$i + 0} = $i + 0; }
a0d0e21e	246	for ($i = 1; $i < 200; $i++) { $ok = 0 unless $h{$i} == $i; }
f6b705ef	247	ok(28, $ok );
a0d0e21e	248
	249	($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
	250	$blksize,$blocks) = stat($Dfile);
f6b705ef	251	ok(29, $size > 0 );
a0d0e21e	252
a0d0e21e	253	@h{0..200} = 200..400;
3245f058	254	my @foo = @h{0..200};
f6b705ef	255	ok(30, join(':',200..400) eq join(':',@foo) );
a0d0e21e	256
	257
	258	# Now check all the non-tie specific stuff
	259
	260	# Check NOOVERWRITE will make put fail when attempting to overwrite
	261	# an existing record.
	262
3245f058	263	my $status = $X->put( 'x', 'newvalue', R_NOOVERWRITE) ;
f6b705ef	264	ok(31, $status == 1 );
a0d0e21e	265
	266	# check that the value of the key 'x' has not been changed by the
	267	# previous test
f6b705ef	268	ok(32, $h{'x'} eq 'X' );
a0d0e21e	269
	270	# standard put
	271	$status = $X->put('key', 'value') ;
f6b705ef	272	ok(33, $status == 0 );
a0d0e21e	273
a0d0e21e	274	#check that previous put can be retrieved
f6b705ef	275	$value = 0 ;
a0d0e21e	276	$status = $X->get('key', $value) ;
f6b705ef	277	ok(34, $status == 0 );
f6b705ef	278	ok(35, $value eq 'value' );
a0d0e21e	279
	280	# Attempting to delete an existing key should work
	281
	282	$status = $X->del('q') ;
f6b705ef	283	ok(36, $status == 0 );
a0d0e21e	284
a0d0e21e	285	# Make sure that the key deleted, cannot be retrieved
3245f058	286	{
	287	no warnings 'uninitialized' ;
	288	ok(37, $h{'q'} eq undef );
	289	}
a0d0e21e	290
	291	# Attempting to delete a non-existant key should fail
	292
	293	$status = $X->del('joe') ;
f6b705ef	294	ok(38, $status == 1 );
a0d0e21e	295
	296	# Check the get interface
	297
	298	# First a non-existing key
	299	$status = $X->get('aaaa', $value) ;
f6b705ef	300	ok(39, $status == 1 );
a0d0e21e	301
	302	# Next an existing key
	303	$status = $X->get('a', $value) ;
f6b705ef	304	ok(40, $status == 0 );
f6b705ef	305	ok(41, $value eq 'A' );
a0d0e21e	306
	307	# seq
	308	# ###
	309
	310	# ditto, but use put to replace the key/value pair.
	311
	312	# use seq to walk backwards through a file - check that this reversed is
	313
	314	# check seq FIRST/LAST
	315
	316	# sync
	317	# ####
	318
	319	$status = $X->sync ;
f6b705ef	320	ok(42, $status == 0 );
a0d0e21e	321
	322
	323	# fd
	324	# ##
	325
	326	$status = $X->fd ;
f6b705ef	327	ok(43, $status != 0 );
a0d0e21e	328
	329	undef $X ;
	330	untie %h ;
	331
	332	unlink $Dfile;
	333
f6b705ef	334	# clear
	335	# #####
	336
	337	ok(44, tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	338	foreach (1 .. 10)
	339	{ $h{$_} = $_ * 100 }
	340
	341	# check that there are 10 elements in the hash
	342	$i = 0 ;
	343	while (($key,$value) = each(%h)) {
	344	$i++;
	345	}
	346	ok(45, $i == 10);
	347
	348	# now clear the hash
	349	%h = () ;
	350
	351	# check it is empty
	352	$i = 0 ;
	353	while (($key,$value) = each(%h)) {
	354	$i++;
	355	}
	356	ok(46, $i == 0);
	357
	358	untie %h ;
	359	unlink $Dfile ;
	360
	361
a0d0e21e	362	# Now try an in memory file
f6b705ef	363	ok(47, $X = tie(%h, 'DB_File',undef, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
a0d0e21e	364
	365	# fd with an in memory file should return fail
	366	$status = $X->fd ;
f6b705ef	367	ok(48, $status == -1 );
a0d0e21e	368
a0d0e21e	369	undef $X ;
610ab055	370	untie %h ;
	371
	372	{
	373	# check ability to override the default hashing
	374	my %x ;
	375	my $filename = "xyz" ;
	376	my $hi = new DB_File::HASHINFO ;
	377	$::count = 0 ;
	378	$hi->{hash} = sub { ++$::count ; length $_[0] } ;
	379	ok(49, tie %x, 'DB_File', $filename, O_RDWR\|O_CREAT, 0640, $hi ) ;
	380	$h{"abc"} = 123 ;
	381	ok(50, $h{"abc"} == 123) ;
	382	untie %x ;
	383	unlink $filename ;
	384	ok(51, $::count >0) ;
	385	}
a0d0e21e	386
05475680	387	{
	388	# check that attempting to tie an array to a DB_HASH will fail
	389
	390	my $filename = "xyz" ;
	391	my @x ;
	392	eval { tie @x, 'DB_File', $filename, O_RDWR\|O_CREAT, 0640, $DB_HASH ; } ;
	393	ok(52, $@ =~ /^DB_File can only tie an associative array to a DB_HASH database/) ;
	394	unlink $filename ;
	395	}
	396
a6ed719b	397	{
	398	# sub-class test
	399
	400	package Another ;
	401
3245f058	402	use warnings ;
a6ed719b	403	use strict ;
	404
	405	open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ;
	406	print FILE <<'EOM' ;
	407
	408	package SubDB ;
	409
3245f058	410	use warnings ;
a6ed719b	411	use strict ;
	412	use vars qw( @ISA @EXPORT) ;
	413
	414	require Exporter ;
	415	use DB_File;
	416	@ISA=qw(DB_File);
	417	@EXPORT = @DB_File::EXPORT ;
	418
	419	sub STORE {
	420	my $self = shift ;
	421	my $key = shift ;
	422	my $value = shift ;
	423	$self->SUPER::STORE($key, $value * 2) ;
	424	}
	425
	426	sub FETCH {
	427	my $self = shift ;
	428	my $key = shift ;
	429	$self->SUPER::FETCH($key) - 1 ;
	430	}
	431
	432	sub put {
	433	my $self = shift ;
	434	my $key = shift ;
	435	my $value = shift ;
	436	$self->SUPER::put($key, $value * 3) ;
	437	}
	438
	439	sub get {
	440	my $self = shift ;
	441	$self->SUPER::get($_[0], $_[1]) ;
	442	$_[1] -= 2 ;
	443	}
	444
	445	sub A_new_method
	446	{
	447	my $self = shift ;
	448	my $key = shift ;
	449	my $value = $self->FETCH($key) ;
	450	return "[[$value]]" ;
	451	}
	452
	453	1 ;
	454	EOM
	455
	456	close FILE ;
	457
a9fd575d	458	BEGIN { push @INC, '.'; }
a6ed719b	459	eval 'use SubDB ; ';
	460	main::ok(53, $@ eq "") ;
	461	my %h ;
	462	my $X ;
	463	eval '
	464	$X = tie(%h, "SubDB","dbhash.tmp", O_RDWR\|O_CREAT, 0640, $DB_HASH );
	465	' ;
	466
	467	main::ok(54, $@ eq "") ;
	468
	469	my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
	470	main::ok(55, $@ eq "") ;
	471	main::ok(56, $ret == 5) ;
	472
	473	my $value = 0;
	474	$ret = eval '$X->put("joe", 4) ; $X->get("joe", $value) ; return $value' ;
	475	main::ok(57, $@ eq "") ;
	476	main::ok(58, $ret == 10) ;
	477
	478	$ret = eval ' R_NEXT eq main::R_NEXT ' ;
	479	main::ok(59, $@ eq "" ) ;
	480	main::ok(60, $ret == 1) ;
	481
	482	$ret = eval '$X->A_new_method("joe") ' ;
	483	main::ok(61, $@ eq "") ;
	484	main::ok(62, $ret eq "[[11]]") ;
	485
fac76ed7	486	undef $X;
fac76ed7	487	untie(%h);
a6ed719b	488	unlink "SubDB.pm", "dbhash.tmp" ;
	489
	490	}
9fe6733a	491
	492	{
	493	# DBM Filter tests
3245f058	494	use warnings ;
9fe6733a	495	use strict ;
	496	my (%h, $db) ;
	497	my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	498	unlink $Dfile;
	499
	500	sub checkOutput
	501	{
	502	my($fk, $sk, $fv, $sv) = @_ ;
	503	return
	504	$fetch_key eq $fk && $store_key eq $sk &&
	505	$fetch_value eq $fv && $store_value eq $sv &&
	506	$_ eq 'original' ;
	507	}
	508
	509	ok(63, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	510
	511	$db->filter_fetch_key (sub { $fetch_key = $_ }) ;
	512	$db->filter_store_key (sub { $store_key = $_ }) ;
	513	$db->filter_fetch_value (sub { $fetch_value = $_}) ;
	514	$db->filter_store_value (sub { $store_value = $_ }) ;
	515
	516	$_ = "original" ;
	517
	518	$h{"fred"} = "joe" ;
	519	# fk sk fv sv
	520	ok(64, checkOutput( "", "fred", "", "joe")) ;
	521
	522	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	523	ok(65, $h{"fred"} eq "joe");
	524	# fk sk fv sv
	525	ok(66, checkOutput( "", "fred", "joe", "")) ;
	526
	527	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	528	ok(67, $db->FIRSTKEY() eq "fred") ;
	529	# fk sk fv sv
	530	ok(68, checkOutput( "fred", "", "", "")) ;
	531
	532	# replace the filters, but remember the previous set
	533	my ($old_fk) = $db->filter_fetch_key
	534	(sub { $_ = uc $_ ; $fetch_key = $_ }) ;
	535	my ($old_sk) = $db->filter_store_key
	536	(sub { $_ = lc $_ ; $store_key = $_ }) ;
	537	my ($old_fv) = $db->filter_fetch_value
	538	(sub { $_ = "[$_]"; $fetch_value = $_ }) ;
	539	my ($old_sv) = $db->filter_store_value
	540	(sub { s/o/x/g; $store_value = $_ }) ;
	541
	542	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	543	$h{"Fred"} = "Joe" ;
	544	# fk sk fv sv
	545	ok(69, checkOutput( "", "fred", "", "Jxe")) ;
	546
	547	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	548	ok(70, $h{"Fred"} eq "[Jxe]");
	549	# fk sk fv sv
	550	ok(71, checkOutput( "", "fred", "[Jxe]", "")) ;
	551
	552	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	553	ok(72, $db->FIRSTKEY() eq "FRED") ;
	554	# fk sk fv sv
	555	ok(73, checkOutput( "FRED", "", "", "")) ;
	556
	557	# put the original filters back
	558	$db->filter_fetch_key ($old_fk);
559	$db->filter_store_key ($old_sk);
560	$db->filter_fetch_value ($old_fv);
561	$db->filter_store_value ($old_sv);
562
563	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
564	$h{"fred"} = "joe" ;
565	ok(74, checkOutput( "", "fred", "", "joe")) ;
566
567	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
568	ok(75, $h{"fred"} eq "joe");
569	ok(76, checkOutput( "", "fred", "joe", "")) ;
570
571	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
572	ok(77, $db->FIRSTKEY() eq "fred") ;
573	ok(78, checkOutput( "fred", "", "", "")) ;
574
575	# delete the filters
576	$db->filter_fetch_key (undef);
577	$db->filter_store_key (undef);
578	$db->filter_fetch_value (undef);
579	$db->filter_store_value (undef);
580
581	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
582	$h{"fred"} = "joe" ;
583	ok(79, checkOutput( "", "", "", "")) ;
584
585	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
586	ok(80, $h{"fred"} eq "joe");
587	ok(81, checkOutput( "", "", "", "")) ;
588
589	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
590	ok(82, $db->FIRSTKEY() eq "fred") ;
591	ok(83, checkOutput( "", "", "", "")) ;
592
593	undef $db ;
594	untie %h;
595	unlink $Dfile;
596	}
597
598	{
599	# DBM Filter with a closure
600
3245f058	601	use warnings ;
9fe6733a	602	use strict ;
	603	my (%h, $db) ;
	604
	605	unlink $Dfile;
	606	ok(84, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	607
	608	my %result = () ;
	609
	610	sub Closure
	611	{
	612	my ($name) = @_ ;
	613	my $count = 0 ;
	614	my @kept = () ;
	615
	616	return sub { ++$count ;
	617	push @kept, $_ ;
	618	$result{$name} = "$name - $count: [@kept]" ;
	619	}
	620	}
	621
	622	$db->filter_store_key(Closure("store key")) ;
	623	$db->filter_store_value(Closure("store value")) ;
	624	$db->filter_fetch_key(Closure("fetch key")) ;
	625	$db->filter_fetch_value(Closure("fetch value")) ;
	626
	627	$_ = "original" ;
	628
	629	$h{"fred"} = "joe" ;
	630	ok(85, $result{"store key"} eq "store key - 1: [fred]");
	631	ok(86, $result{"store value"} eq "store value - 1: [joe]");
	632	ok(87, ! defined $result{"fetch key"} );
	633	ok(88, ! defined $result{"fetch value"} );
	634	ok(89, $_ eq "original") ;
	635
	636	ok(90, $db->FIRSTKEY() eq "fred") ;
	637	ok(91, $result{"store key"} eq "store key - 1: [fred]");
	638	ok(92, $result{"store value"} eq "store value - 1: [joe]");
	639	ok(93, $result{"fetch key"} eq "fetch key - 1: [fred]");
	640	ok(94, ! defined $result{"fetch value"} );
	641	ok(95, $_ eq "original") ;
	642
	643	$h{"jim"} = "john" ;
	644	ok(96, $result{"store key"} eq "store key - 2: [fred jim]");
	645	ok(97, $result{"store value"} eq "store value - 2: [joe john]");
	646	ok(98, $result{"fetch key"} eq "fetch key - 1: [fred]");
	647	ok(99, ! defined $result{"fetch value"} );
	648	ok(100, $_ eq "original") ;
	649
	650	ok(101, $h{"fred"} eq "joe");
	651	ok(102, $result{"store key"} eq "store key - 3: [fred jim fred]");
	652	ok(103, $result{"store value"} eq "store value - 2: [joe john]");
	653	ok(104, $result{"fetch key"} eq "fetch key - 1: [fred]");
	654	ok(105, $result{"fetch value"} eq "fetch value - 1: [joe]");
	655	ok(106, $_ eq "original") ;
	656
	657	undef $db ;
	658	untie %h;
	659	unlink $Dfile;
	660	}
	661
	662	{
	663	# DBM Filter recursion detection
3245f058	664	use warnings ;
9fe6733a	665	use strict ;
	666	my (%h, $db) ;
	667	unlink $Dfile;
	668
	669	ok(107, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	670
	671	$db->filter_store_key (sub { $_ = $h{$_} }) ;
	672
	673	eval '$h{1} = 1234' ;
	674	ok(108, $@ =~ /^recursion detected in filter_store_key at/ );
	675
	676	undef $db ;
	677	untie %h;
	678	unlink $Dfile;
	679	}
	680
2c2d71f5	681
	682	{
	683	# Examples from the POD
	684
	685	my $file = "xyzt" ;
	686	{
	687	my $redirect = new Redirect $file ;
	688
3245f058	689	use warnings FATAL => qw(all);
2c2d71f5	690	use strict ;
	691	use DB_File ;
	692	use vars qw( %h $k $v ) ;
	693
	694	unlink "fruit" ;
	695	tie %h, "DB_File", "fruit", O_RDWR\|O_CREAT, 0640, $DB_HASH
	696	or die "Cannot open file 'fruit': $!\n";
	697
	698	# Add a few key/value pairs to the file
	699	$h{"apple"} = "red" ;
	700	$h{"orange"} = "orange" ;
	701	$h{"banana"} = "yellow" ;
	702	$h{"tomato"} = "red" ;
	703
	704	# Check for existence of a key
	705	print "Banana Exists\n\n" if $h{"banana"} ;
	706
	707	# Delete a key/value pair.
	708	delete $h{"apple"} ;
	709
	710	# print the contents of the file
	711	while (($k, $v) = each %h)
	712	{ print "$k -> $v\n" }
	713
	714	untie %h ;
	715
	716	unlink "fruit" ;
	717	}
	718
	719	ok(109, docat_del($file) eq <<'EOM') ;
	720	Banana Exists
	721
	722	orange -> orange
	723	tomato -> red
	724	banana -> yellow
	725	EOM
	726
	727	}
	728
cbc5248d	729	{
	730	# Bug ID 20001013.009
	731	#
	732	# test that $hash{KEY} = undef doesn't produce the warning
	733	# Use of uninitialized value in null operation
	734	use warnings ;
	735	use strict ;
	736	use DB_File ;
	737
	738	unlink $Dfile;
	739	my %h ;
	740	my $a = "";
	741	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	742
	743	tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
	744	$h{ABC} = undef;
	745	ok(110, $a eq "") ;
3245f058	746	untie %h ;
	747	unlink $Dfile;
	748	}
	749
	750	{
	751	# test that %hash = () doesn't produce the warning
	752	# Argument "" isn't numeric in entersub
	753	use warnings ;
	754	use strict ;
	755	use DB_File ;
	756
	757	unlink $Dfile;
	758	my %h ;
	759	my $a = "";
	760	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	761
	762	tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
	763	%h = (); ;
	764	ok(111, $a eq "") ;
	765	untie %h ;
cbc5248d	766	unlink $Dfile;
	767	}
	768
0bf2e707	769	{
	770	# When iterating over a tied hash using "each", the key passed to FETCH
	771	# will be recycled and passed to NEXTKEY. If a Source Filter modifies the
	772	# key in FETCH via a filter_fetch_key method we need to check that the
	773	# modified key doesn't get passed to NEXTKEY.
	774	# Also Test "keys" & "values" while we are at it.
	775
	776	use warnings ;
	777	use strict ;
	778	use DB_File ;
	779
	780	unlink $Dfile;
	781	my $bad_key = 0 ;
	782	my %h = () ;
	783	my $db ;
	784	ok(112, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	785	$db->filter_fetch_key (sub { $_ =~ s/^Beta_/Alpha_/ if defined $_}) ;
	786	$db->filter_store_key (sub { $bad_key = 1 if /^Beta_/ ; $_ =~ s/^Alpha_/Beta_/}) ;
	787
	788	$h{'Alpha_ABC'} = 2 ;
	789	$h{'Alpha_DEF'} = 5 ;
	790
	791	ok(113, $h{'Alpha_ABC'} == 2);
	792	ok(114, $h{'Alpha_DEF'} == 5);
	793
	794	my ($k, $v) = ("","");
	795	while (($k, $v) = each %h) {}
	796	ok(115, $bad_key == 0);
	797
	798	$bad_key = 0 ;
	799	foreach $k (keys %h) {}
	800	ok(116, $bad_key == 0);
	801
	802	$bad_key = 0 ;
	803	foreach $v (values %h) {}
	804	ok(117, $bad_key == 0);
	805
	806	undef $db ;
	807	untie %h ;
	808	unlink $Dfile;
	809	}
	810
a0d0e21e	811	exit ;