[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 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 ;
   our (@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 ;
    our (%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
	23	use DB_File;
	24	use Fcntl;
	25
0bf2e707	26	print "1..117\n";
f6b705ef	27
	28	sub ok
	29	{
	30	my $no = shift ;
	31	my $result = shift ;
	32
	33	print "not " unless $result ;
	34	print "ok $no\n" ;
	35	}
a0d0e21e	36
2c2d71f5	37	{
	38	package Redirect ;
	39	use Symbol ;
	40
	41	sub new
	42	{
	43	my $class = shift ;
	44	my $filename = shift ;
	45	my $fh = gensym ;
	46	open ($fh, ">$filename") \|\| die "Cannot open $filename: $!" ;
	47	my $real_stdout = select($fh) ;
	48	return bless [$fh, $real_stdout ] ;
	49
	50	}
	51	sub DESTROY
	52	{
	53	my $self = shift ;
	54	close $self->[0] ;
	55	select($self->[1]) ;
	56	}
	57	}
	58
	59	sub docat_del
	60	{
	61	my $file = shift;
	62	local $/ = undef;
	63	open(CAT,$file) \|\| die "Cannot open $file: $!";
	64	my $result = <CAT>;
	65	close(CAT);
77fd2717	66	$result = normalise($result) ;
2c2d71f5	67	unlink $file ;
	68	return $result;
	69	}
	70
77fd2717	71	sub normalise
	72	{
	73	my $data = shift ;
	74	$data =~ s#\r\n#\n#g
	75	if $^O eq 'cygwin' ;
	76	return $data ;
	77	}
	78
	79
	80
9fe6733a	81	my $Dfile = "dbhash.tmp";
3245f058	82	my $null_keys_allowed = ($DB_File::db_ver < 2.004010
	83	\|\| $DB_File::db_ver >= 3.1 );
	84
a0d0e21e	85	unlink $Dfile;
	86
	87	umask(0);
	88
	89	# Check the interface to HASHINFO
	90
f6b705ef	91	my $dbh = new DB_File::HASHINFO ;
f6b705ef	92
3fe9a6f1	93	ok(1, ! defined $dbh->{bsize}) ;
	94	ok(2, ! defined $dbh->{ffactor}) ;
	95	ok(3, ! defined $dbh->{nelem}) ;
	96	ok(4, ! defined $dbh->{cachesize}) ;
	97	ok(5, ! defined $dbh->{hash}) ;
	98	ok(6, ! defined $dbh->{lorder}) ;
a0d0e21e	99
a0d0e21e	100	$dbh->{bsize} = 3000 ;
f6b705ef	101	ok(7, $dbh->{bsize} == 3000 );
a0d0e21e	102
a0d0e21e	103	$dbh->{ffactor} = 9000 ;
f6b705ef	104	ok(8, $dbh->{ffactor} == 9000 );
f6b705ef	105
a0d0e21e	106	$dbh->{nelem} = 400 ;
f6b705ef	107	ok(9, $dbh->{nelem} == 400 );
a0d0e21e	108
a0d0e21e	109	$dbh->{cachesize} = 65 ;
f6b705ef	110	ok(10, $dbh->{cachesize} == 65 );
a0d0e21e	111
a0d0e21e	112	$dbh->{hash} = "abc" ;
f6b705ef	113	ok(11, $dbh->{hash} eq "abc" );
a0d0e21e	114
a0d0e21e	115	$dbh->{lorder} = 1234 ;
f6b705ef	116	ok(12, $dbh->{lorder} == 1234 );
a0d0e21e	117
	118	# Check that an invalid entry is caught both for store & fetch
	119	eval '$dbh->{fred} = 1234' ;
f6b705ef	120	ok(13, $@ =~ /^DB_File::HASHINFO::STORE - Unknown element 'fred' at/ );
610ab055	121	eval 'my $q = $dbh->{fred}' ;
f6b705ef	122	ok(14, $@ =~ /^DB_File::HASHINFO::FETCH - Unknown element 'fred' at/ );
a0d0e21e	123
610ab055	124
a0d0e21e	125	# Now check the interface to HASH
3245f058	126	my ($X, %h);
f6b705ef	127	ok(15, $X = tie(%h, 'DB_File',$Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
a0d0e21e	128
3245f058	129	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
a0d0e21e	130	$blksize,$blocks) = stat($Dfile);
77fd2717	131
	132	my %noMode = map { $_, 1} qw( amigaos MSWin32 NetWare cygwin ) ;
	133
d536870a	134	ok(16, ($mode & 0777) == (($^O eq 'os2' \|\| $^O eq 'MacOS') ? 0666 : 0640) \|\|
77fd2717	135	$noMode{$^O} );
a0d0e21e	136
3245f058	137	my ($key, $value, $i);
a0d0e21e	138	while (($key,$value) = each(%h)) {
	139	$i++;
	140	}
f6b705ef	141	ok(17, !$i );
a0d0e21e	142
	143	$h{'goner1'} = 'snork';
	144
	145	$h{'abc'} = 'ABC';
f6b705ef	146	ok(18, $h{'abc'} eq 'ABC' );
	147	ok(19, !defined $h{'jimmy'} );
	148	ok(20, !exists $h{'jimmy'} );
	149	ok(21, exists $h{'abc'} );
a0d0e21e	150
	151	$h{'def'} = 'DEF';
	152	$h{'jkl','mno'} = "JKL\034MNO";
	153	$h{'a',2,3,4,5} = join("\034",'A',2,3,4,5);
	154	$h{'a'} = 'A';
	155
	156	#$h{'b'} = 'B';
	157	$X->STORE('b', 'B') ;
	158
	159	$h{'c'} = 'C';
	160
	161	#$h{'d'} = 'D';
	162	$X->put('d', 'D') ;
	163
	164	$h{'e'} = 'E';
	165	$h{'f'} = 'F';
	166	$h{'g'} = 'X';
	167	$h{'h'} = 'H';
	168	$h{'i'} = 'I';
	169
	170	$h{'goner2'} = 'snork';
	171	delete $h{'goner2'};
	172
	173
	174	# IMPORTANT - $X must be undefined before the untie otherwise the
	175	# underlying DB close routine will not get called.
	176	undef $X ;
	177	untie(%h);
	178
	179
	180	# tie to the same file again, do not supply a type - should default to HASH
f6b705ef	181	ok(22, $X = tie(%h,'DB_File',$Dfile, O_RDWR, 0640) );
a0d0e21e	182
	183	# Modify an entry from the previous tie
	184	$h{'g'} = 'G';
	185
	186	$h{'j'} = 'J';
	187	$h{'k'} = 'K';
	188	$h{'l'} = 'L';
	189	$h{'m'} = 'M';
	190	$h{'n'} = 'N';
	191	$h{'o'} = 'O';
	192	$h{'p'} = 'P';
	193	$h{'q'} = 'Q';
	194	$h{'r'} = 'R';
	195	$h{'s'} = 'S';
	196	$h{'t'} = 'T';
	197	$h{'u'} = 'U';
	198	$h{'v'} = 'V';
	199	$h{'w'} = 'W';
	200	$h{'x'} = 'X';
	201	$h{'y'} = 'Y';
	202	$h{'z'} = 'Z';
	203
	204	$h{'goner3'} = 'snork';
	205
	206	delete $h{'goner1'};
	207	$X->DELETE('goner3');
	208
3245f058	209	my @keys = keys(%h);
3245f058	210	my @values = values(%h);
a0d0e21e	211
f6b705ef	212	ok(23, $#keys == 29 && $#values == 29) ;
a0d0e21e	213
f6b705ef	214	$i = 0 ;
55d68b4a	215	while (($key,$value) = each(%h)) {
2f52a358	216	if ($key eq $keys[$i] && $value eq $values[$i] && $key eq lc($value)) {
a0d0e21e	217	$key =~ y/a-z/A-Z/;
	218	$i++ if $key eq $value;
	219	}
	220	}
	221
f6b705ef	222	ok(24, $i == 30) ;
a0d0e21e	223
55d68b4a	224	@keys = ('blurfl', keys(%h), 'dyick');
f6b705ef	225	ok(25, $#keys == 31) ;
a0d0e21e	226
a0d0e21e	227	$h{'foo'} = '';
f6b705ef	228	ok(26, $h{'foo'} eq '' );
a0d0e21e	229
3245f058	230	# Berkeley DB from version 2.4.10 to 3.0 does not allow null keys.
	231	# This feature was reenabled in version 3.1 of Berkeley DB.
	232	my $result = 0 ;
	233	if ($null_keys_allowed) {
	234	$h{''} = 'bar';
	235	$result = ( $h{''} eq 'bar' );
	236	}
	237	else
	238	{ $result = 1 }
	239	ok(27, $result) ;
a0d0e21e	240
a0d0e21e	241	# check cache overflow and numeric keys and contents
3245f058	242	my $ok = 1;
a0d0e21e	243	for ($i = 1; $i < 200; $i++) { $h{$i + 0} = $i + 0; }
a0d0e21e	244	for ($i = 1; $i < 200; $i++) { $ok = 0 unless $h{$i} == $i; }
f6b705ef	245	ok(28, $ok );
a0d0e21e	246
	247	($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,$atime,$mtime,$ctime,
	248	$blksize,$blocks) = stat($Dfile);
f6b705ef	249	ok(29, $size > 0 );
a0d0e21e	250
a0d0e21e	251	@h{0..200} = 200..400;
3245f058	252	my @foo = @h{0..200};
f6b705ef	253	ok(30, join(':',200..400) eq join(':',@foo) );
a0d0e21e	254
	255
	256	# Now check all the non-tie specific stuff
	257
	258	# Check NOOVERWRITE will make put fail when attempting to overwrite
	259	# an existing record.
	260
3245f058	261	my $status = $X->put( 'x', 'newvalue', R_NOOVERWRITE) ;
f6b705ef	262	ok(31, $status == 1 );
a0d0e21e	263
	264	# check that the value of the key 'x' has not been changed by the
	265	# previous test
f6b705ef	266	ok(32, $h{'x'} eq 'X' );
a0d0e21e	267
	268	# standard put
	269	$status = $X->put('key', 'value') ;
f6b705ef	270	ok(33, $status == 0 );
a0d0e21e	271
a0d0e21e	272	#check that previous put can be retrieved
f6b705ef	273	$value = 0 ;
a0d0e21e	274	$status = $X->get('key', $value) ;
f6b705ef	275	ok(34, $status == 0 );
f6b705ef	276	ok(35, $value eq 'value' );
a0d0e21e	277
	278	# Attempting to delete an existing key should work
	279
	280	$status = $X->del('q') ;
f6b705ef	281	ok(36, $status == 0 );
a0d0e21e	282
a0d0e21e	283	# Make sure that the key deleted, cannot be retrieved
3245f058	284	{
	285	no warnings 'uninitialized' ;
	286	ok(37, $h{'q'} eq undef );
	287	}
a0d0e21e	288
	289	# Attempting to delete a non-existant key should fail
	290
	291	$status = $X->del('joe') ;
f6b705ef	292	ok(38, $status == 1 );
a0d0e21e	293
	294	# Check the get interface
	295
	296	# First a non-existing key
	297	$status = $X->get('aaaa', $value) ;
f6b705ef	298	ok(39, $status == 1 );
a0d0e21e	299
	300	# Next an existing key
	301	$status = $X->get('a', $value) ;
f6b705ef	302	ok(40, $status == 0 );
f6b705ef	303	ok(41, $value eq 'A' );
a0d0e21e	304
	305	# seq
	306	# ###
	307
	308	# ditto, but use put to replace the key/value pair.
	309
	310	# use seq to walk backwards through a file - check that this reversed is
	311
	312	# check seq FIRST/LAST
	313
	314	# sync
	315	# ####
	316
	317	$status = $X->sync ;
f6b705ef	318	ok(42, $status == 0 );
a0d0e21e	319
	320
	321	# fd
	322	# ##
	323
	324	$status = $X->fd ;
f6b705ef	325	ok(43, $status != 0 );
a0d0e21e	326
	327	undef $X ;
	328	untie %h ;
	329
	330	unlink $Dfile;
	331
f6b705ef	332	# clear
	333	# #####
	334
	335	ok(44, tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	336	foreach (1 .. 10)
	337	{ $h{$_} = $_ * 100 }
	338
	339	# check that there are 10 elements in the hash
	340	$i = 0 ;
	341	while (($key,$value) = each(%h)) {
	342	$i++;
	343	}
	344	ok(45, $i == 10);
	345
	346	# now clear the hash
	347	%h = () ;
	348
	349	# check it is empty
	350	$i = 0 ;
	351	while (($key,$value) = each(%h)) {
	352	$i++;
	353	}
	354	ok(46, $i == 0);
	355
	356	untie %h ;
	357	unlink $Dfile ;
	358
	359
a0d0e21e	360	# Now try an in memory file
f6b705ef	361	ok(47, $X = tie(%h, 'DB_File',undef, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
a0d0e21e	362
	363	# fd with an in memory file should return fail
	364	$status = $X->fd ;
f6b705ef	365	ok(48, $status == -1 );
a0d0e21e	366
a0d0e21e	367	undef $X ;
610ab055	368	untie %h ;
	369
	370	{
	371	# check ability to override the default hashing
	372	my %x ;
	373	my $filename = "xyz" ;
	374	my $hi = new DB_File::HASHINFO ;
	375	$::count = 0 ;
	376	$hi->{hash} = sub { ++$::count ; length $_[0] } ;
	377	ok(49, tie %x, 'DB_File', $filename, O_RDWR\|O_CREAT, 0640, $hi ) ;
	378	$h{"abc"} = 123 ;
	379	ok(50, $h{"abc"} == 123) ;
	380	untie %x ;
	381	unlink $filename ;
	382	ok(51, $::count >0) ;
	383	}
a0d0e21e	384
05475680	385	{
	386	# check that attempting to tie an array to a DB_HASH will fail
	387
	388	my $filename = "xyz" ;
	389	my @x ;
	390	eval { tie @x, 'DB_File', $filename, O_RDWR\|O_CREAT, 0640, $DB_HASH ; } ;
	391	ok(52, $@ =~ /^DB_File can only tie an associative array to a DB_HASH database/) ;
	392	unlink $filename ;
	393	}
	394
a6ed719b	395	{
	396	# sub-class test
	397
	398	package Another ;
	399
3245f058	400	use warnings ;
a6ed719b	401	use strict ;
	402
	403	open(FILE, ">SubDB.pm") or die "Cannot open SubDB.pm: $!\n" ;
	404	print FILE <<'EOM' ;
	405
	406	package SubDB ;
	407
3245f058	408	use warnings ;
a6ed719b	409	use strict ;
07200f1b	410	our (@ISA, @EXPORT);
a6ed719b	411
	412	require Exporter ;
	413	use DB_File;
	414	@ISA=qw(DB_File);
	415	@EXPORT = @DB_File::EXPORT ;
	416
	417	sub STORE {
	418	my $self = shift ;
	419	my $key = shift ;
	420	my $value = shift ;
	421	$self->SUPER::STORE($key, $value * 2) ;
	422	}
	423
	424	sub FETCH {
	425	my $self = shift ;
	426	my $key = shift ;
	427	$self->SUPER::FETCH($key) - 1 ;
	428	}
	429
	430	sub put {
	431	my $self = shift ;
	432	my $key = shift ;
	433	my $value = shift ;
	434	$self->SUPER::put($key, $value * 3) ;
	435	}
	436
	437	sub get {
	438	my $self = shift ;
	439	$self->SUPER::get($_[0], $_[1]) ;
	440	$_[1] -= 2 ;
	441	}
	442
	443	sub A_new_method
	444	{
	445	my $self = shift ;
	446	my $key = shift ;
	447	my $value = $self->FETCH($key) ;
	448	return "[[$value]]" ;
	449	}
	450
	451	1 ;
	452	EOM
	453
	454	close FILE ;
	455
a9fd575d	456	BEGIN { push @INC, '.'; }
a6ed719b	457	eval 'use SubDB ; ';
	458	main::ok(53, $@ eq "") ;
	459	my %h ;
	460	my $X ;
	461	eval '
	462	$X = tie(%h, "SubDB","dbhash.tmp", O_RDWR\|O_CREAT, 0640, $DB_HASH );
	463	' ;
	464
	465	main::ok(54, $@ eq "") ;
	466
	467	my $ret = eval '$h{"fred"} = 3 ; return $h{"fred"} ' ;
	468	main::ok(55, $@ eq "") ;
	469	main::ok(56, $ret == 5) ;
	470
	471	my $value = 0;
	472	$ret = eval '$X->put("joe", 4) ; $X->get("joe", $value) ; return $value' ;
	473	main::ok(57, $@ eq "") ;
	474	main::ok(58, $ret == 10) ;
	475
	476	$ret = eval ' R_NEXT eq main::R_NEXT ' ;
	477	main::ok(59, $@ eq "" ) ;
	478	main::ok(60, $ret == 1) ;
	479
	480	$ret = eval '$X->A_new_method("joe") ' ;
	481	main::ok(61, $@ eq "") ;
	482	main::ok(62, $ret eq "[[11]]") ;
	483
fac76ed7	484	undef $X;
fac76ed7	485	untie(%h);
a6ed719b	486	unlink "SubDB.pm", "dbhash.tmp" ;
	487
	488	}
9fe6733a	489
	490	{
	491	# DBM Filter tests
3245f058	492	use warnings ;
9fe6733a	493	use strict ;
	494	my (%h, $db) ;
	495	my ($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	496	unlink $Dfile;
	497
	498	sub checkOutput
	499	{
	500	my($fk, $sk, $fv, $sv) = @_ ;
	501	return
	502	$fetch_key eq $fk && $store_key eq $sk &&
	503	$fetch_value eq $fv && $store_value eq $sv &&
	504	$_ eq 'original' ;
	505	}
	506
	507	ok(63, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	508
	509	$db->filter_fetch_key (sub { $fetch_key = $_ }) ;
	510	$db->filter_store_key (sub { $store_key = $_ }) ;
	511	$db->filter_fetch_value (sub { $fetch_value = $_}) ;
	512	$db->filter_store_value (sub { $store_value = $_ }) ;
	513
	514	$_ = "original" ;
	515
	516	$h{"fred"} = "joe" ;
	517	# fk sk fv sv
	518	ok(64, checkOutput( "", "fred", "", "joe")) ;
	519
	520	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	521	ok(65, $h{"fred"} eq "joe");
	522	# fk sk fv sv
	523	ok(66, checkOutput( "", "fred", "joe", "")) ;
	524
	525	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	526	ok(67, $db->FIRSTKEY() eq "fred") ;
	527	# fk sk fv sv
	528	ok(68, checkOutput( "fred", "", "", "")) ;
	529
	530	# replace the filters, but remember the previous set
	531	my ($old_fk) = $db->filter_fetch_key
	532	(sub { $_ = uc $_ ; $fetch_key = $_ }) ;
	533	my ($old_sk) = $db->filter_store_key
	534	(sub { $_ = lc $_ ; $store_key = $_ }) ;
	535	my ($old_fv) = $db->filter_fetch_value
	536	(sub { $_ = "[$_]"; $fetch_value = $_ }) ;
	537	my ($old_sv) = $db->filter_store_value
	538	(sub { s/o/x/g; $store_value = $_ }) ;
	539
	540	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	541	$h{"Fred"} = "Joe" ;
	542	# fk sk fv sv
	543	ok(69, checkOutput( "", "fred", "", "Jxe")) ;
	544
	545	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	546	ok(70, $h{"Fred"} eq "[Jxe]");
	547	# fk sk fv sv
	548	ok(71, checkOutput( "", "fred", "[Jxe]", "")) ;
	549
	550	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
	551	ok(72, $db->FIRSTKEY() eq "FRED") ;
	552	# fk sk fv sv
	553	ok(73, checkOutput( "FRED", "", "", "")) ;
	554
	555	# put the original filters back
	556	$db->filter_fetch_key ($old_fk);
557	$db->filter_store_key ($old_sk);
558	$db->filter_fetch_value ($old_fv);
559	$db->filter_store_value ($old_sv);
560
561	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
562	$h{"fred"} = "joe" ;
563	ok(74, checkOutput( "", "fred", "", "joe")) ;
564
565	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
566	ok(75, $h{"fred"} eq "joe");
567	ok(76, checkOutput( "", "fred", "joe", "")) ;
568
569	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
570	ok(77, $db->FIRSTKEY() eq "fred") ;
571	ok(78, checkOutput( "fred", "", "", "")) ;
572
573	# delete the filters
574	$db->filter_fetch_key (undef);
575	$db->filter_store_key (undef);
576	$db->filter_fetch_value (undef);
577	$db->filter_store_value (undef);
578
579	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
580	$h{"fred"} = "joe" ;
581	ok(79, checkOutput( "", "", "", "")) ;
582
583	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
584	ok(80, $h{"fred"} eq "joe");
585	ok(81, checkOutput( "", "", "", "")) ;
586
587	($fetch_key, $store_key, $fetch_value, $store_value) = ("") x 4 ;
588	ok(82, $db->FIRSTKEY() eq "fred") ;
589	ok(83, checkOutput( "", "", "", "")) ;
590
591	undef $db ;
592	untie %h;
593	unlink $Dfile;
594	}
595
596	{
597	# DBM Filter with a closure
598
3245f058	599	use warnings ;
9fe6733a	600	use strict ;
	601	my (%h, $db) ;
	602
	603	unlink $Dfile;
	604	ok(84, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	605
	606	my %result = () ;
	607
	608	sub Closure
	609	{
	610	my ($name) = @_ ;
	611	my $count = 0 ;
	612	my @kept = () ;
	613
	614	return sub { ++$count ;
	615	push @kept, $_ ;
	616	$result{$name} = "$name - $count: [@kept]" ;
	617	}
	618	}
	619
	620	$db->filter_store_key(Closure("store key")) ;
	621	$db->filter_store_value(Closure("store value")) ;
	622	$db->filter_fetch_key(Closure("fetch key")) ;
	623	$db->filter_fetch_value(Closure("fetch value")) ;
	624
	625	$_ = "original" ;
	626
	627	$h{"fred"} = "joe" ;
	628	ok(85, $result{"store key"} eq "store key - 1: [fred]");
	629	ok(86, $result{"store value"} eq "store value - 1: [joe]");
	630	ok(87, ! defined $result{"fetch key"} );
	631	ok(88, ! defined $result{"fetch value"} );
	632	ok(89, $_ eq "original") ;
	633
	634	ok(90, $db->FIRSTKEY() eq "fred") ;
	635	ok(91, $result{"store key"} eq "store key - 1: [fred]");
	636	ok(92, $result{"store value"} eq "store value - 1: [joe]");
	637	ok(93, $result{"fetch key"} eq "fetch key - 1: [fred]");
	638	ok(94, ! defined $result{"fetch value"} );
	639	ok(95, $_ eq "original") ;
	640
	641	$h{"jim"} = "john" ;
	642	ok(96, $result{"store key"} eq "store key - 2: [fred jim]");
	643	ok(97, $result{"store value"} eq "store value - 2: [joe john]");
	644	ok(98, $result{"fetch key"} eq "fetch key - 1: [fred]");
	645	ok(99, ! defined $result{"fetch value"} );
	646	ok(100, $_ eq "original") ;
	647
	648	ok(101, $h{"fred"} eq "joe");
	649	ok(102, $result{"store key"} eq "store key - 3: [fred jim fred]");
	650	ok(103, $result{"store value"} eq "store value - 2: [joe john]");
	651	ok(104, $result{"fetch key"} eq "fetch key - 1: [fred]");
	652	ok(105, $result{"fetch value"} eq "fetch value - 1: [joe]");
	653	ok(106, $_ eq "original") ;
	654
	655	undef $db ;
	656	untie %h;
	657	unlink $Dfile;
	658	}
	659
	660	{
	661	# DBM Filter recursion detection
3245f058	662	use warnings ;
9fe6733a	663	use strict ;
	664	my (%h, $db) ;
	665	unlink $Dfile;
	666
	667	ok(107, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	668
	669	$db->filter_store_key (sub { $_ = $h{$_} }) ;
	670
	671	eval '$h{1} = 1234' ;
	672	ok(108, $@ =~ /^recursion detected in filter_store_key at/ );
	673
	674	undef $db ;
	675	untie %h;
	676	unlink $Dfile;
	677	}
	678
2c2d71f5	679
	680	{
	681	# Examples from the POD
	682
	683	my $file = "xyzt" ;
	684	{
	685	my $redirect = new Redirect $file ;
	686
3245f058	687	use warnings FATAL => qw(all);
2c2d71f5	688	use strict ;
2c2d71f5	689	use DB_File ;
07200f1b	690	our (%h, $k, $v);
2c2d71f5	691
	692	unlink "fruit" ;
	693	tie %h, "DB_File", "fruit", O_RDWR\|O_CREAT, 0640, $DB_HASH
	694	or die "Cannot open file 'fruit': $!\n";
	695
	696	# Add a few key/value pairs to the file
	697	$h{"apple"} = "red" ;
	698	$h{"orange"} = "orange" ;
	699	$h{"banana"} = "yellow" ;
	700	$h{"tomato"} = "red" ;
	701
	702	# Check for existence of a key
	703	print "Banana Exists\n\n" if $h{"banana"} ;
	704
	705	# Delete a key/value pair.
	706	delete $h{"apple"} ;
	707
	708	# print the contents of the file
	709	while (($k, $v) = each %h)
	710	{ print "$k -> $v\n" }
	711
	712	untie %h ;
	713
	714	unlink "fruit" ;
	715	}
	716
	717	ok(109, docat_del($file) eq <<'EOM') ;
	718	Banana Exists
	719
	720	orange -> orange
	721	tomato -> red
	722	banana -> yellow
	723	EOM
	724
	725	}
	726
cbc5248d	727	{
	728	# Bug ID 20001013.009
	729	#
	730	# test that $hash{KEY} = undef doesn't produce the warning
	731	# Use of uninitialized value in null operation
	732	use warnings ;
	733	use strict ;
	734	use DB_File ;
	735
	736	unlink $Dfile;
	737	my %h ;
	738	my $a = "";
	739	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	740
	741	tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
	742	$h{ABC} = undef;
	743	ok(110, $a eq "") ;
3245f058	744	untie %h ;
	745	unlink $Dfile;
	746	}
	747
	748	{
	749	# test that %hash = () doesn't produce the warning
	750	# Argument "" isn't numeric in entersub
	751	use warnings ;
	752	use strict ;
	753	use DB_File ;
	754
	755	unlink $Dfile;
	756	my %h ;
	757	my $a = "";
	758	local $SIG{__WARN__} = sub {$a = $_[0]} ;
	759
	760	tie %h, 'DB_File', $Dfile or die "Can't open file: $!\n" ;
	761	%h = (); ;
	762	ok(111, $a eq "") ;
	763	untie %h ;
cbc5248d	764	unlink $Dfile;
	765	}
	766
0bf2e707	767	{
	768	# When iterating over a tied hash using "each", the key passed to FETCH
	769	# will be recycled and passed to NEXTKEY. If a Source Filter modifies the
	770	# key in FETCH via a filter_fetch_key method we need to check that the
	771	# modified key doesn't get passed to NEXTKEY.
	772	# Also Test "keys" & "values" while we are at it.
	773
	774	use warnings ;
	775	use strict ;
	776	use DB_File ;
	777
	778	unlink $Dfile;
	779	my $bad_key = 0 ;
	780	my %h = () ;
	781	my $db ;
	782	ok(112, $db = tie(%h, 'DB_File', $Dfile, O_RDWR\|O_CREAT, 0640, $DB_HASH ) );
	783	$db->filter_fetch_key (sub { $_ =~ s/^Beta_/Alpha_/ if defined $_}) ;
	784	$db->filter_store_key (sub { $bad_key = 1 if /^Beta_/ ; $_ =~ s/^Alpha_/Beta_/}) ;
	785
	786	$h{'Alpha_ABC'} = 2 ;
	787	$h{'Alpha_DEF'} = 5 ;
	788
	789	ok(113, $h{'Alpha_ABC'} == 2);
	790	ok(114, $h{'Alpha_DEF'} == 5);
	791
	792	my ($k, $v) = ("","");
	793	while (($k, $v) = each %h) {}
	794	ok(115, $bad_key == 0);
	795
	796	$bad_key = 0 ;
	797	foreach $k (keys %h) {}
	798	ok(116, $bad_key == 0);
	799
	800	$bad_key = 0 ;
	801	foreach $v (values %h) {}
	802	ok(117, $bad_key == 0);
	803
	804	undef $db ;
	805	untie %h ;
	806	unlink $Dfile;
	807	}
	808
a0d0e21e	809	exit ;