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

#!./perl 

use warnings ;
use strict ;

BEGIN {
    unless(grep /blib/, @INC) {
        chdir 't' if -d 't';
        @INC = '../lib' if -d '../lib';
    }
}
 
use Config;
 
BEGIN {
    if(-d "lib" && -f "TEST") {
        if ($Config{'extensions'} !~ /\bDB_File\b/ ) {
            print "1..111\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
	2
	3	use warnings ;
	4	use strict ;
a0d0e21e	5
a0d0e21e	6	BEGIN {
77fd2717	7	unless(grep /blib/, @INC) {
	8	chdir 't' if -d 't';
	9	@INC = '../lib' if -d '../lib';
	10	}
	11	}
	12
	13	use Config;
	14
	15	BEGIN {
	16	if(-d "lib" && -f "TEST") {
	17	if ($Config{'extensions'} !~ /\bDB_File\b/ ) {
	18	print "1..111\n";
	19	exit 0;
	20	}
a0d0e21e	21	}
	22	}
	23
3245f058	24	use strict;
3245f058	25	use warnings;
a0d0e21e	26	use DB_File;
	27	use Fcntl;
	28
0bf2e707	29	print "1..117\n";
f6b705ef	30
	31	sub ok
	32	{
	33	my $no = shift ;
	34	my $result = shift ;
	35
	36	print "not " unless $result ;
	37	print "ok $no\n" ;
	38	}
a0d0e21e	39
2c2d71f5	40	{
	41	package Redirect ;
	42	use Symbol ;
	43
	44	sub new
	45	{
	46	my $class = shift ;
	47	my $filename = shift ;
	48	my $fh = gensym ;
	49	open ($fh, ">$filename") \|\| die "Cannot open $filename: $!" ;
	50	my $real_stdout = select($fh) ;
	51	return bless [$fh, $real_stdout ] ;
	52
	53	}
	54	sub DESTROY
	55	{
	56	my $self = shift ;
	57	close $self->[0] ;
	58	select($self->[1]) ;
	59	}
	60	}
	61
	62	sub docat_del
	63	{
	64	my $file = shift;
	65	local $/ = undef;
	66	open(CAT,$file) \|\| die "Cannot open $file: $!";
	67	my $result = <CAT>;
	68	close(CAT);
77fd2717	69	$result = normalise($result) ;
2c2d71f5	70	unlink $file ;
	71	return $result;
	72	}
	73
77fd2717	74	sub normalise
	75	{
	76	my $data = shift ;
	77	$data =~ s#\r\n#\n#g
	78	if $^O eq 'cygwin' ;
	79	return $data ;
	80	}
	81
	82
	83
9fe6733a	84	my $Dfile = "dbhash.tmp";
3245f058	85	my $null_keys_allowed = ($DB_File::db_ver < 2.004010
	86	\|\| $DB_File::db_ver >= 3.1 );
	87
a0d0e21e	88	unlink $Dfile;
	89
	90	umask(0);
	91
	92	# Check the interface to HASHINFO
	93
f6b705ef	94	my $dbh = new DB_File::HASHINFO ;
f6b705ef	95
3fe9a6f1	96	ok(1, ! defined $dbh->{bsize}) ;
	97	ok(2, ! defined $dbh->{ffactor}) ;
	98	ok(3, ! defined $dbh->{nelem}) ;
	99	ok(4, ! defined $dbh->{cachesize}) ;
	100	ok(5, ! defined $dbh->{hash}) ;
	101	ok(6, ! defined $dbh->{lorder}) ;
a0d0e21e	102
a0d0e21e	103	$dbh->{bsize} = 3000 ;
f6b705ef	104	ok(7, $dbh->{bsize} == 3000 );
a0d0e21e	105
a0d0e21e	106	$dbh->{ffactor} = 9000 ;
f6b705ef	107	ok(8, $dbh->{ffactor} == 9000 );
f6b705ef	108
a0d0e21e	109	$dbh->{nelem} = 400 ;
f6b705ef	110	ok(9, $dbh->{nelem} == 400 );
a0d0e21e	111
a0d0e21e	112	$dbh->{cachesize} = 65 ;
f6b705ef	113	ok(10, $dbh->{cachesize} == 65 );
a0d0e21e	114
a0d0e21e	115	$dbh->{hash} = "abc" ;
f6b705ef	116	ok(11, $dbh->{hash} eq "abc" );
a0d0e21e	117
a0d0e21e	118	$dbh->{lorder} = 1234 ;
f6b705ef	119	ok(12, $dbh->{lorder} == 1234 );
a0d0e21e	120
	121	# Check that an invalid entry is caught both for store & fetch
	122	eval '$dbh->{fred} = 1234' ;
f6b705ef	123	ok(13, $@ =~ /^DB_File::HASHINFO::STORE - Unknown element 'fred' at/ );
610ab055	124	eval 'my $q = $dbh->{fred}' ;
f6b705ef	125	ok(14, $@ =~ /^DB_File::HASHINFO::FETCH - Unknown element 'fred' at/ );
a0d0e21e	126
610ab055	127
a0d0e21e	128	# Now check the interface to HASH
3245f058	129	my ($X, %h);
f6b705ef	130	ok(15, $X = tie(%h, 'DB_File',$Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
a0d0e21e	131
3245f058	132	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
a0d0e21e	133	$blksize,$blocks) = stat($Dfile);
77fd2717	134
	135	my %noMode = map { $_, 1} qw( amigaos MSWin32 NetWare cygwin ) ;
	136
d536870a	137	ok(16, ($mode & 0777) == (($^O eq 'os2' \|\| $^O eq 'MacOS') ? 0666 : 0640) \|\|
77fd2717	138	$noMode{$^O} );
a0d0e21e	139
3245f058	140	my ($key, $value, $i);
a0d0e21e	141	while (($key,$value) = each(%h)) {
	142	$i++;
	143	}
f6b705ef	144	ok(17, !$i );
a0d0e21e	145
	146	$h{'goner1'} = 'snork';
	147
	148	$h{'abc'} = 'ABC';
f6b705ef	149	ok(18, $h{'abc'} eq 'ABC' );
	150	ok(19, !defined $h{'jimmy'} );
	151	ok(20, !exists $h{'jimmy'} );
	152	ok(21, exists $h{'abc'} );
a0d0e21e	153
	154	$h{'def'} = 'DEF';
	155	$h{'jkl','mno'} = "JKL\034MNO";
	156	$h{'a',2,3,4,5} = join("\034",'A',2,3,4,5);
	157	$h{'a'} = 'A';
	158
	159	#$h{'b'} = 'B';
	160	$X->STORE('b', 'B') ;
	161
	162	$h{'c'} = 'C';
	163
	164	#$h{'d'} = 'D';
	165	$X->put('d', 'D') ;
	166
	167	$h{'e'} = 'E';
	168	$h{'f'} = 'F';
	169	$h{'g'} = 'X';
	170	$h{'h'} = 'H';
	171	$h{'i'} = 'I';
	172
	173	$h{'goner2'} = 'snork';
	174	delete $h{'goner2'};
	175
	176
	177	# IMPORTANT - $X must be undefined before the untie otherwise the
	178	# underlying DB close routine will not get called.
	179	undef $X ;
	180	untie(%h);
	181
	182
	183	# tie to the same file again, do not supply a type - should default to HASH
f6b705ef	184	ok(22, $X = tie(%h,'DB_File',$Dfile, O_RDWR, 0640) );
a0d0e21e	185
	186	# Modify an entry from the previous tie
	187	$h{'g'} = 'G';
	188
	189	$h{'j'} = 'J';
	190	$h{'k'} = 'K';
	191	$h{'l'} = 'L';
	192	$h{'m'} = 'M';
	193	$h{'n'} = 'N';
	194	$h{'o'} = 'O';
	195	$h{'p'} = 'P';
	196	$h{'q'} = 'Q';
	197	$h{'r'} = 'R';
	198	$h{'s'} = 'S';
	199	$h{'t'} = 'T';
	200	$h{'u'} = 'U';
	201	$h{'v'} = 'V';
	202	$h{'w'} = 'W';
	203	$h{'x'} = 'X';
	204	$h{'y'} = 'Y';
	205	$h{'z'} = 'Z';
	206
	207	$h{'goner3'} = 'snork';
	208
	209	delete $h{'goner1'};
	210	$X->DELETE('goner3');
	211
3245f058	212	my @keys = keys(%h);
3245f058	213	my @values = values(%h);
a0d0e21e	214
f6b705ef	215	ok(23, $#keys == 29 && $#values == 29) ;
a0d0e21e	216
f6b705ef	217	$i = 0 ;
55d68b4a	218	while (($key,$value) = each(%h)) {
2f52a358	219	if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
a0d0e21e	220	$key =~ y/a-z/A-Z/;
	221	$i++ if $key eq $value;
	222	}
	223	}
	224
f6b705ef	225	ok(24, $i == 30) ;
a0d0e21e	226
55d68b4a	227	@keys = ('blurfl', keys(%h), 'dyick');
f6b705ef	228	ok(25, $#keys == 31) ;
a0d0e21e	229
a0d0e21e	230	$h{'foo'} = '';
f6b705ef	231	ok(26, $h{'foo'} eq '' );
a0d0e21e	232
3245f058	233	# Berkeley DB from version 2.4.10 to 3.0 does not allow null keys.
	234	# This feature was reenabled in version 3.1 of Berkeley DB.
	235	my $result = 0 ;
	236	if ($null_keys_allowed) {
	237	$h{''} = 'bar';
	238	$result = ( $h{''} eq 'bar' );
	239	}
	240	else
	241	{ $result = 1 }
	242	ok(27, $result) ;
a0d0e21e	243
a0d0e21e	244	# check cache overflow and numeric keys and contents
3245f058	245	my $ok = 1;
a0d0e21e	246	for ($i = 1; $i < 200; $i++) { $h{$i + 0} = $i + 0; }
a0d0e21e	247	for ($i = 1; $i < 200; $i++) { $ok = 0 unless $h{$i} == $i; }
f6b705ef	248	ok(28, $ok );
a0d0e21e	249
	250	($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
	251	$blksize,$blocks) = stat($Dfile);
f6b705ef	252	ok(29, $size > 0 );
a0d0e21e	253
a0d0e21e	254	@h{0..200} = 200..400;
3245f058	255	my @foo = @h{0..200};
f6b705ef	256	ok(30, join(':',200..400) eq join(':',@foo) );
a0d0e21e	257
	258
	259	# Now check all the non-tie specific stuff
	260
	261	# Check NOOVERWRITE will make put fail when attempting to overwrite
	262	# an existing record.
	263
3245f058	264	my $status = $X->put( 'x', 'newvalue', R_NOOVERWRITE) ;
f6b705ef	265	ok(31, $status == 1 );
a0d0e21e	266
	267	# check that the value of the key 'x' has not been changed by the
	268	# previous test
f6b705ef	269	ok(32, $h{'x'} eq 'X' );
a0d0e21e	270
	271	# standard put
	272	$status = $X->put('key', 'value') ;
f6b705ef	273	ok(33, $status == 0 );
a0d0e21e	274
a0d0e21e	275	#check that previous put can be retrieved
f6b705ef	276	$value = 0 ;
a0d0e21e	277	$status = $X->get('key', $value) ;
f6b705ef	278	ok(34, $status == 0 );
f6b705ef	279	ok(35, $value eq 'value' );
a0d0e21e	280
	281	# Attempting to delete an existing key should work
	282
	283	$status = $X->del('q') ;
f6b705ef	284	ok(36, $status == 0 );
a0d0e21e	285
a0d0e21e	286	# Make sure that the key deleted, cannot be retrieved
3245f058	287	{
	288	no warnings 'uninitialized' ;
	289	ok(37, $h{'q'} eq undef );
	290	}
a0d0e21e	291
	292	# Attempting to delete a non-existant key should fail
	293
	294	$status = $X->del('joe') ;
f6b705ef	295	ok(38, $status == 1 );
a0d0e21e	296
	297	# Check the get interface
	298
	299	# First a non-existing key
	300	$status = $X->get('aaaa', $value) ;
f6b705ef	301	ok(39, $status == 1 );
a0d0e21e	302
	303	# Next an existing key
	304	$status = $X->get('a', $value) ;
f6b705ef	305	ok(40, $status == 0 );
f6b705ef	306	ok(41, $value eq 'A' );
a0d0e21e	307
	308	# seq
	309	# ###
	310
	311	# ditto, but use put to replace the key/value pair.
	312
	313	# use seq to walk backwards through a file - check that this reversed is
	314
	315	# check seq FIRST/LAST
	316
	317	# sync
	318	# ####
	319
	320	$status = $X->sync ;
f6b705ef	321	ok(42, $status == 0 );
a0d0e21e	322
	323
	324	# fd
	325	# ##
	326
	327	$status = $X->fd ;
f6b705ef	328	ok(43, $status != 0 );
a0d0e21e	329
	330	undef $X ;
	331	untie %h ;
	332
	333	unlink $Dfile;
	334
f6b705ef	335	# clear
	336	# #####
	337
	338	ok(44, tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	339	foreach (1 .. 10)
	340	{ $h{$_} = $_ * 100 }
	341
	342	# check that there are 10 elements in the hash
	343	$i = 0 ;
	344	while (($key,$value) = each(%h)) {
	345	$i++;
	346	}
	347	ok(45, $i == 10);
	348
	349	# now clear the hash
	350	%h = () ;
	351
	352	# check it is empty
	353	$i = 0 ;
	354	while (($key,$value) = each(%h)) {
	355	$i++;
	356	}
	357	ok(46, $i == 0);
	358
	359	untie %h ;
	360	unlink $Dfile ;
	361
	362
a0d0e21e	363	# Now try an in memory file
f6b705ef	364	ok(47, $X = tie(%h, 'DB_File',undef, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
a0d0e21e	365
	366	# fd with an in memory file should return fail
	367	$status = $X->fd ;
f6b705ef	368	ok(48, $status == -1 );
a0d0e21e	369
a0d0e21e	370	undef $X ;
610ab055	371	untie %h ;
	372
	373	{
	374	# check ability to override the default hashing
	375	my %x ;
	376	my $filename = "xyz" ;
	377	my $hi = new DB_File::HASHINFO ;
	378	$::count = 0 ;
	379	$hi->{hash} = sub { ++$::count ; length $_[0] } ;
	380	ok(49, tie %x, 'DB_File', $filename, O_RDWR\|O_CREAT, 0640, $hi ) ;
	381	$h{"abc"} = 123 ;
	382	ok(50, $h{"abc"} == 123) ;
	383	untie %x ;
	384	unlink $filename ;
	385	ok(51, $::count >0) ;
	386	}
a0d0e21e	387
05475680	388	{
	389	# check that attempting to tie an array to a DB_HASH will fail
	390
	391	my $filename = "xyz" ;
	392	my @x ;
	393	eval { tie @x, 'DB_File', $filename, O_RDWR\|O_CREAT, 0640, $DB_HASH ; } ;
	394	ok(52, $@ =~ /^DB_File can only tie an associative array to a DB_HASH database/) ;
	395	unlink $filename ;
	396	}
	397
a6ed719b	398	{
	399	# sub-class test
	400
	401	package Another ;
	402
3245f058	403	use warnings ;
a6ed719b	404	use strict ;
	405
	406	open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ;
	407	print FILE <<'EOM' ;
	408
	409	package SubDB ;
	410
3245f058	411	use warnings ;
a6ed719b	412	use strict ;
	413	use vars qw( @ISA @EXPORT) ;
	414
	415	require Exporter ;
	416	use DB_File;
	417	@ISA=qw(DB_File);
	418	@EXPORT = @DB_File::EXPORT ;
	419
	420	sub STORE {
	421	my $self = shift ;
	422	my $key = shift ;
	423	my $value = shift ;
	424	$self->SUPER::STORE($key, $value * 2) ;
	425	}
	426
	427	sub FETCH {
	428	my $self = shift ;
	429	my $key = shift ;
	430	$self->SUPER::FETCH($key) - 1 ;
	431	}
	432
	433	sub put {
	434	my $self = shift ;
	435	my $key = shift ;
	436	my $value = shift ;
	437	$self->SUPER::put($key, $value * 3) ;
	438	}
	439
	440	sub get {
	441	my $self = shift ;
	442	$self->SUPER::get($_[0], $_[1]) ;
	443	$_[1] -= 2 ;
	444	}
	445
	446	sub A_new_method
	447	{
	448	my $self = shift ;
	449	my $key = shift ;
	450	my $value = $self->FETCH($key) ;
	451	return "[[$value]]" ;
	452	}
	453
	454	1 ;
	455	EOM
	456
	457	close FILE ;
	458
a9fd575d	459	BEGIN { push @INC, '.'; }
a6ed719b	460	eval 'use SubDB ; ';
	461	main::ok(53, $@ eq "") ;
	462	my %h ;
	463	my $X ;
	464	eval '
	465	$X = tie(%h, "SubDB","dbhash.tmp", O_RDWR\|O_CREAT, 0640, $DB_HASH );
	466	' ;
	467
	468	main::ok(54, $@ eq "") ;
	469
	470	my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
	471	main::ok(55, $@ eq "") ;
	472	main::ok(56, $ret == 5) ;
	473
	474	my $value = 0;
	475	$ret = eval '$X->put("joe", 4) ; $X->get("joe", $value) ; return $value' ;
	476	main::ok(57, $@ eq "") ;
	477	main::ok(58, $ret == 10) ;
	478
	479	$ret = eval ' R_NEXT eq main::R_NEXT ' ;
	480	main::ok(59, $@ eq "" ) ;
	481	main::ok(60, $ret == 1) ;
	482
	483	$ret = eval '$X->A_new_method("joe") ' ;
	484	main::ok(61, $@ eq "") ;
	485	main::ok(62, $ret eq "[[11]]") ;
	486
fac76ed7	487	undef $X;
fac76ed7	488	untie(%h);
a6ed719b	489	unlink "SubDB.pm", "dbhash.tmp" ;
	490
	491	}
9fe6733a	492
	493	{
	494	# DBM Filter tests
3245f058	495	use warnings ;
9fe6733a	496	use strict ;
	497	my (%h, $db) ;
	498	my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	499	unlink $Dfile;
	500
	501	sub checkOutput
	502	{
	503	my($fk, $sk, $fv, $sv) = @_ ;
	504	return
	505	$fetch_key eq $fk && $store_key eq $sk &&
	506	$fetch_value eq $fv && $store_value eq $sv &&
	507	$_ eq 'original' ;
	508	}
	509
	510	ok(63, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	511
	512	$db->filter_fetch_key (sub { $fetch_key = $_ }) ;
	513	$db->filter_store_key (sub { $store_key = $_ }) ;
	514	$db->filter_fetch_value (sub { $fetch_value = $_}) ;
	515	$db->filter_store_value (sub { $store_value = $_ }) ;
	516
	517	$_ = "original" ;
	518
	519	$h{"fred"} = "joe" ;
	520	# fk sk fv sv
	521	ok(64, checkOutput( "", "fred", "", "joe")) ;
	522
	523	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	524	ok(65, $h{"fred"} eq "joe");
	525	# fk sk fv sv
	526	ok(66, checkOutput( "", "fred", "joe", "")) ;
	527
	528	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	529	ok(67, $db->FIRSTKEY() eq "fred") ;
	530	# fk sk fv sv
	531	ok(68, checkOutput( "fred", "", "", "")) ;
	532
	533	# replace the filters, but remember the previous set
	534	my ($old_fk) = $db->filter_fetch_key
	535	(sub { $_ = uc $_ ; $fetch_key = $_ }) ;
	536	my ($old_sk) = $db->filter_store_key
	537	(sub { $_ = lc $_ ; $store_key = $_ }) ;
	538	my ($old_fv) = $db->filter_fetch_value
	539	(sub { $_ = "[$_]"; $fetch_value = $_ }) ;
	540	my ($old_sv) = $db->filter_store_value
	541	(sub { s/o/x/g; $store_value = $_ }) ;
	542
	543	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	544	$h{"Fred"} = "Joe" ;
	545	# fk sk fv sv
	546	ok(69, checkOutput( "", "fred", "", "Jxe")) ;
	547
	548	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	549	ok(70, $h{"Fred"} eq "[Jxe]");
	550	# fk sk fv sv
	551	ok(71, checkOutput( "", "fred", "[Jxe]", "")) ;
	552
	553	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	554	ok(72, $db->FIRSTKEY() eq "FRED") ;
	555	# fk sk fv sv
	556	ok(73, checkOutput( "FRED", "", "", "")) ;
	557
	558	# put the original filters back
	559	$db->filter_fetch_key ($old_fk);
560	$db->filter_store_key ($old_sk);
561	$db->filter_fetch_value ($old_fv);
562	$db->filter_store_value ($old_sv);
563
564	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
565	$h{"fred"} = "joe" ;
566	ok(74, checkOutput( "", "fred", "", "joe")) ;
567
568	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
569	ok(75, $h{"fred"} eq "joe");
570	ok(76, checkOutput( "", "fred", "joe", "")) ;
571
572	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
573	ok(77, $db->FIRSTKEY() eq "fred") ;
574	ok(78, checkOutput( "fred", "", "", "")) ;
575
576	# delete the filters
577	$db->filter_fetch_key (undef);
578	$db->filter_store_key (undef);
579	$db->filter_fetch_value (undef);
580	$db->filter_store_value (undef);
581
582	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
583	$h{"fred"} = "joe" ;
584	ok(79, checkOutput( "", "", "", "")) ;
585
586	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
587	ok(80, $h{"fred"} eq "joe");
588	ok(81, checkOutput( "", "", "", "")) ;
589
590	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
591	ok(82, $db->FIRSTKEY() eq "fred") ;
592	ok(83, checkOutput( "", "", "", "")) ;
593
594	undef $db ;
595	untie %h;
596	unlink $Dfile;
597	}
598
599	{
600	# DBM Filter with a closure
601
3245f058	602	use warnings ;
9fe6733a	603	use strict ;
	604	my (%h, $db) ;
	605
	606	unlink $Dfile;
	607	ok(84, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	608
	609	my %result = () ;
	610
	611	sub Closure
	612	{
	613	my ($name) = @_ ;
	614	my $count = 0 ;
	615	my @kept = () ;
	616
	617	return sub { ++$count ;
	618	push @kept, $_ ;
	619	$result{$name} = "$name - $count: [@kept]" ;
	620	}
	621	}
	622
	623	$db->filter_store_key(Closure("store key")) ;
	624	$db->filter_store_value(Closure("store value")) ;
	625	$db->filter_fetch_key(Closure("fetch key")) ;
	626	$db->filter_fetch_value(Closure("fetch value")) ;
	627
	628	$_ = "original" ;
	629
	630	$h{"fred"} = "joe" ;
	631	ok(85, $result{"store key"} eq "store key - 1: [fred]");
	632	ok(86, $result{"store value"} eq "store value - 1: [joe]");
	633	ok(87, ! defined $result{"fetch key"} );
	634	ok(88, ! defined $result{"fetch value"} );
	635	ok(89, $_ eq "original") ;
	636
	637	ok(90, $db->FIRSTKEY() eq "fred") ;
	638	ok(91, $result{"store key"} eq "store key - 1: [fred]");
	639	ok(92, $result{"store value"} eq "store value - 1: [joe]");
	640	ok(93, $result{"fetch key"} eq "fetch key - 1: [fred]");
	641	ok(94, ! defined $result{"fetch value"} );
	642	ok(95, $_ eq "original") ;
	643
	644	$h{"jim"} = "john" ;
	645	ok(96, $result{"store key"} eq "store key - 2: [fred jim]");
	646	ok(97, $result{"store value"} eq "store value - 2: [joe john]");
	647	ok(98, $result{"fetch key"} eq "fetch key - 1: [fred]");
	648	ok(99, ! defined $result{"fetch value"} );
	649	ok(100, $_ eq "original") ;
	650
	651	ok(101, $h{"fred"} eq "joe");
	652	ok(102, $result{"store key"} eq "store key - 3: [fred jim fred]");
	653	ok(103, $result{"store value"} eq "store value - 2: [joe john]");
	654	ok(104, $result{"fetch key"} eq "fetch key - 1: [fred]");
	655	ok(105, $result{"fetch value"} eq "fetch value - 1: [joe]");
	656	ok(106, $_ eq "original") ;
	657
	658	undef $db ;
	659	untie %h;
	660	unlink $Dfile;
	661	}
	662
	663	{
	664	# DBM Filter recursion detection
3245f058	665	use warnings ;
9fe6733a	666	use strict ;
	667	my (%h, $db) ;
	668	unlink $Dfile;
	669
	670	ok(107, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	671
	672	$db->filter_store_key (sub { $_ = $h{$_} }) ;
	673
	674	eval '$h{1} = 1234' ;
	675	ok(108, $@ =~ /^recursion detected in filter_store_key at/ );
	676
	677	undef $db ;
	678	untie %h;
	679	unlink $Dfile;
	680	}
	681
2c2d71f5	682
	683	{
	684	# Examples from the POD
	685
	686	my $file = "xyzt" ;
	687	{
	688	my $redirect = new Redirect $file ;
	689
3245f058	690	use warnings FATAL => qw(all);
2c2d71f5	691	use strict ;
	692	use DB_File ;
	693	use vars qw( %h $k $v ) ;
	694
	695	unlink "fruit" ;
	696	tie %h, "DB_File", "fruit", O_RDWR\|O_CREAT, 0640, $DB_HASH
	697	or die "Cannot open file 'fruit': $!\n";
	698
	699	# Add a few key/value pairs to the file
	700	$h{"apple"} = "red" ;
	701	$h{"orange"} = "orange" ;
	702	$h{"banana"} = "yellow" ;
	703	$h{"tomato"} = "red" ;
	704
	705	# Check for existence of a key
	706	print "Banana Exists\n\n" if $h{"banana"} ;
	707
	708	# Delete a key/value pair.
	709	delete $h{"apple"} ;
	710
	711	# print the contents of the file
	712	while (($k, $v) = each %h)
	713	{ print "$k -> $v\n" }
	714
	715	untie %h ;
	716
	717	unlink "fruit" ;
	718	}
	719
	720	ok(109, docat_del($file) eq <<'EOM') ;
	721	Banana Exists
	722
	723	orange -> orange
	724	tomato -> red
	725	banana -> yellow
	726	EOM
	727
	728	}
	729
cbc5248d	730	{
	731	# Bug ID 20001013.009
	732	#
	733	# test that $hash{KEY} = undef doesn't produce the warning
	734	# Use of uninitialized value in null operation
	735	use warnings ;
	736	use strict ;
	737	use DB_File ;
	738
	739	unlink $Dfile;
	740	my %h ;
	741	my $a = "";
	742	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	743
	744	tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
	745	$h{ABC} = undef;
	746	ok(110, $a eq "") ;
3245f058	747	untie %h ;
	748	unlink $Dfile;
	749	}
	750
	751	{
	752	# test that %hash = () doesn't produce the warning
	753	# Argument "" isn't numeric in entersub
	754	use warnings ;
	755	use strict ;
	756	use DB_File ;
	757
	758	unlink $Dfile;
	759	my %h ;
	760	my $a = "";
	761	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	762
	763	tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
	764	%h = (); ;
	765	ok(111, $a eq "") ;
	766	untie %h ;
cbc5248d	767	unlink $Dfile;
	768	}
	769
0bf2e707	770	{
	771	# When iterating over a tied hash using "each", the key passed to FETCH
	772	# will be recycled and passed to NEXTKEY. If a Source Filter modifies the
	773	# key in FETCH via a filter_fetch_key method we need to check that the
	774	# modified key doesn't get passed to NEXTKEY.
	775	# Also Test "keys" & "values" while we are at it.
	776
	777	use warnings ;
	778	use strict ;
	779	use DB_File ;
	780
	781	unlink $Dfile;
	782	my $bad_key = 0 ;
	783	my %h = () ;
	784	my $db ;
	785	ok(112, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	786	$db->filter_fetch_key (sub { $_ =~ s/^Beta_/Alpha_/ if defined $_}) ;
	787	$db->filter_store_key (sub { $bad_key = 1 if /^Beta_/ ; $_ =~ s/^Alpha_/Beta_/}) ;
	788
	789	$h{'Alpha_ABC'} = 2 ;
	790	$h{'Alpha_DEF'} = 5 ;
	791
	792	ok(113, $h{'Alpha_ABC'} == 2);
	793	ok(114, $h{'Alpha_DEF'} == 5);
	794
	795	my ($k, $v) = ("","");
	796	while (($k, $v) = each %h) {}
	797	ok(115, $bad_key == 0);
	798
	799	$bad_key = 0 ;
	800	foreach $k (keys %h) {}
	801	ok(116, $bad_key == 0);
	802
	803	$bad_key = 0 ;
	804	foreach $v (values %h) {}
	805	ok(117, $bad_key == 0);
	806
	807	undef $db ;
	808	untie %h ;
	809	unlink $Dfile;
	810	}
	811
a0d0e21e	812	exit ;